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Schedule III – Real Estate and Accumulated Depreciation (Details) - USD ($)
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 89,094,878      
Real Estate and Accumulated Depreciation, Initial Cost, Land 410,008,398      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 874,400,367      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 17,096,625      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 405,850,207      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 895,655,183      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,299,254,832 $ 1,019,956,329 $ 755,848,938 $ 589,147,012
Real Estate and Accumulated Depreciation, Accumulated Depreciation 85,238,614 $ 69,696,727 $ 56,401,423 $ 59,089,851
Borman Center, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 550,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 562,404      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 1,087,596      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 550,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,650,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,200,000      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 1,650,000      
Real Estate and Accumulated Depreciation, Date of Acquisition 1977      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Capital Plaza, KY [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 7,379      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,240,607      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 3,510,131      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 7,379      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 5,750,738      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 5,758,117      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 3,318,488      
Real Estate and Accumulated Depreciation, Date of Acquisition 1978      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Grayling Plaza, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 200,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,778,657      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (46,867)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 200,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,731,790      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,931,790      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 1,446,774      
Real Estate and Accumulated Depreciation, Date of Acquisition 1984      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
West Frankfort Plaza, IL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 8,002      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 784,077      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 202,463      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 8,002      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 986,540      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 994,542      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 774,374      
Real Estate and Accumulated Depreciation, Date of Acquisition 1982      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Omaha Store, NE [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 150,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 150,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 150,000      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 1995      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Wichita Store, KS [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 1,669,449      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,039,195      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,690,644      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (48,910)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,139,677      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,541,252      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,680,929      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 875,350      
Real Estate and Accumulated Depreciation, Date of Acquisition 1995      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Monroeville, PA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 6,332,158      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,249,724      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (2,586,265)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 3,153,890      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,841,727      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 5,995,617      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 1,153,029      
Real Estate and Accumulated Depreciation, Date of Acquisition 1996      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Boynton Beach, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,534,942      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,043,122      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 3,743,613      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,534,942      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 5,786,735      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 7,321,677      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 1,770,137      
Real Estate and Accumulated Depreciation, Date of Acquisition 1996      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Waterford, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 971,009      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,562,869      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 144,236      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 971,009      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,707,105      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,678,114      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 848,092      
Real Estate and Accumulated Depreciation, Date of Acquisition 1997      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Chesterfield Township, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,350,590      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,757,830      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (46,164)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,350,590      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,711,666      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,062,256      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 835,019      
Real Estate and Accumulated Depreciation, Date of Acquisition 1998      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Grand Blanc, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,104,285      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,998,919      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 43,929      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,104,285      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,042,848      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,147,133      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 967,706      
Real Estate and Accumulated Depreciation, Date of Acquisition 1998      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Pontiac, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,144,190      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,808,955      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (113,506)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,144,190      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,695,449      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,839,639      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 817,644      
Real Estate and Accumulated Depreciation, Date of Acquisition 1998      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Mt Pleasant Shopping Ctr, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 907,600      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 8,081,968      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 1,617,649      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 907,600      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 9,699,617      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 10,607,217      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 5,831,294      
Real Estate and Accumulated Depreciation, Date of Acquisition 1998      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Rochester, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 715,980      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,438,740      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,188,050      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 1,950      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,438,740      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,190,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 4,628,740      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 1,012,853      
Real Estate and Accumulated Depreciation, Date of Acquisition 1999      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Ypsilanti, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 646,668      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,050,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,222,097      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 32,641      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,050,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,254,738      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 4,304,738      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 1,013,770      
Real Estate and Accumulated Depreciation, Date of Acquisition 1999      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Petoskey, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 449,809      
Real Estate and Accumulated Depreciation, Initial Cost, Land 0      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,332,473      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 1,179      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,333,652      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,333,652      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 1,030,607      
Real Estate and Accumulated Depreciation, Date of Acquisition 2000      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Flint, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 678,466      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,026,625      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,879,700      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (1,200)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,026,625      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,878,500      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,905,125      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 798,371      
Real Estate and Accumulated Depreciation, Date of Acquisition 2000      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Flint, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 583,788      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,477,680      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,241,293      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,477,680      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,241,293      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,718,973      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 945,541      
Real Estate and Accumulated Depreciation, Date of Acquisition 2001      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
New Baltimore, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 498,042      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,250,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,285,781      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (16,503)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,250,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,269,278      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,519,278      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 929,161      
Real Estate and Accumulated Depreciation, Date of Acquisition 2001      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Flint, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 2,393,334      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,729,851      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,798,091      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 660      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,729,851      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,798,751      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,528,602      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 706,346      
Real Estate and Accumulated Depreciation, Date of Acquisition 2002      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Indianapolis, IN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 180,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,117,617      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 119,931      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 180,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,237,548      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,417,548      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 457,876      
Real Estate and Accumulated Depreciation, Date of Acquisition 2002      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Big Rapids, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,201,675      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,014,107      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (2,000)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,201,675      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,012,107      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,213,782      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 742,007      
Real Estate and Accumulated Depreciation, Date of Acquisition 2003      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Flint, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 0      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 471,272      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (201,809)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 269,463      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 269,463      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 166,120      
Real Estate and Accumulated Depreciation, Date of Acquisition 2003      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 20 years      
Canton Twp, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,550,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,132,096      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 23,021      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,550,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,155,117      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,705,117      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 758,728      
Real Estate and Accumulated Depreciation, Date of Acquisition 2003      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Flint, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 2,773,830      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,537,400      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,961,674      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,537,400      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,961,674      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,499,074      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 678,493      
Real Estate and Accumulated Depreciation, Date of Acquisition 2004      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Webster, NY [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,600,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,438,781      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,600,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,438,781      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 4,038,781      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 840,872      
Real Estate and Accumulated Depreciation, Date of Acquisition 2004      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Albion, NY [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,900,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 3,037,864      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,900,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 3,037,864      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 4,937,864      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 996,804      
Real Estate and Accumulated Depreciation, Date of Acquisition 2004      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Flint, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 2,120,635      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,029,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,165,463      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (6,666)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,029,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,158,797      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,187,797      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 708,311      
Real Estate and Accumulated Depreciation, Date of Acquisition 2004      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Lansing, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 785,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 348,501      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 3,045      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 785,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 351,546      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,136,546      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 118,610      
Real Estate and Accumulated Depreciation, Date of Acquisition 2004      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Boynton Beach, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,569,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,363,524      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 3,911,082      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,569,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 6,274,606      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 7,843,606      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 857,122      
Real Estate and Accumulated Depreciation, Date of Acquisition 2004      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Midland, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,350,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,313,413      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (79,235)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,268,695      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,315,483      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 4,584,178      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 721,102      
Real Estate and Accumulated Depreciation, Date of Acquisition 2005      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Grand Rapids, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,450,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,646,591      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,450,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,646,591      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 4,096,591      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 816,032      
Real Estate and Accumulated Depreciation, Date of Acquisition 2005      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Delta Township, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,075,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,535,971      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 7,014      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,075,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,542,985      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 4,617,985      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 773,550      
Real Estate and Accumulated Depreciation, Date of Acquisition 2005      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Roseville, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,771,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,327,052      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 395      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,771,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,327,447      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 4,098,447      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 705,400      
Real Estate and Accumulated Depreciation, Date of Acquisition 2005      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Mt Pleasant, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 1,252,087      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,075,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,432,390      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 4,787      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,075,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,437,177      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,512,177      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 434,132      
Real Estate and Accumulated Depreciation, Date of Acquisition 2005      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
N Cape May, NJ [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,075,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,430,092      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 495      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,075,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,430,587      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,505,587      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 432,152      
Real Estate and Accumulated Depreciation, Date of Acquisition 2005      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Summit Twp, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 998,460      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,336,357      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 12,686      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 998,460      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,349,043      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,347,503      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 379,333      
Real Estate and Accumulated Depreciation, Date of Acquisition 2006      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Livonia, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,200,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 3,441,694      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 817,589      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,200,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 4,259,283      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 5,459,283      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 1,097,512      
Real Estate and Accumulated Depreciation, Date of Acquisition 2007      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Barnesville, GA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 932,500      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,091,514      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 5,490      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 932,500      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,097,004      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,029,504      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 535,142      
Real Estate and Accumulated Depreciation, Date of Acquisition 2007      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
East Lansing, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 240,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 54,531      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (38,420)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 240,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 16,111      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 256,111      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 12,337      
Real Estate and Accumulated Depreciation, Date of Acquisition 2007      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Plainfield, IN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,708,415      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,708,415      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,708,415      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2007      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Macomb Township, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 424,222      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 424,222      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 424,222      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2008      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Brighton, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,365,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,802,036      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 5,615      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,365,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,807,651      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 4,172,651      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 619,945      
Real Estate and Accumulated Depreciation, Date of Acquisition 2009      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Southfield, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 1,483,000      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,200,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 125,616      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 2,063      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,200,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 127,679      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,327,679      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 26,193      
Real Estate and Accumulated Depreciation, Date of Acquisition 2009      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Atchison, KS [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 943,750      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 3,021,672      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 823,170      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 3,142,252      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,965,422      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 587,664      
Real Estate and Accumulated Depreciation, Date of Acquisition 2010      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Johnstown, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 2,384,927      
Real Estate and Accumulated Depreciation, Initial Cost, Land 485,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,799,502      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 485,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,799,502      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,284,502      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 524,908      
Real Estate and Accumulated Depreciation, Date of Acquisition 2010      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Lake in the Hills, IL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,135,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 3,328,560      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,690,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 3,773,560      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 5,463,560      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 701,982      
Real Estate and Accumulated Depreciation, Date of Acquisition 2010      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Concord, NC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 7,676,305      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 7,676,305      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 7,676,305      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2010      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Antioch, IL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 1,669,449      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,087,884      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,087,884      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,087,884      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2010      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
St Augustine Shores, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,700,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,973,929      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (4,754)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,700,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,969,175      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,669,175      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 350,619      
Real Estate and Accumulated Depreciation, Date of Acquisition 2010      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Mansfield, CT [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 2,170,284      
Real Estate and Accumulated Depreciation, Initial Cost, Land 700,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,902,191      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 508      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 700,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,902,699      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,602,699      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 338,917      
Real Estate and Accumulated Depreciation, Date of Acquisition 2010      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Spring Grove, IL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 2,313,000      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,191,199      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 968      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,192,167      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,192,167      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2010      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Tallahassee, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 1,628,000      
Real Estate and Accumulated Depreciation, Initial Cost, Land 0      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,482,462      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,482,462      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,482,462      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 260,972      
Real Estate and Accumulated Depreciation, Date of Acquisition 2010      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Wilmington, NC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 2,186,000      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,500,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,348,591      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,500,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,348,591      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,848,591      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 230,386      
Real Estate and Accumulated Depreciation, Date of Acquisition 2011      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Marietta, GA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 900,000      
Real Estate and Accumulated Depreciation, Initial Cost, Land 575,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 696,297      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 6,359      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 575,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 702,656      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,277,656      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 114,105      
Real Estate and Accumulated Depreciation, Date of Acquisition 2011      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Baltimore, MD [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 2,534,000      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,610,430      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (3,447)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,606,983      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,606,983      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2011      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Dallas, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 1,844,000      
Real Estate and Accumulated Depreciation, Initial Cost, Land 701,320      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 778,905      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 1,042,730      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 701,320      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,821,635      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,522,955      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 281,357      
Real Estate and Accumulated Depreciation, Date of Acquisition 2011      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Chandler, AZ [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 1,550,203      
Real Estate and Accumulated Depreciation, Initial Cost, Land 332,868      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 793,898      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 360      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 332,868      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 794,258      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,127,126      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 124,140      
Real Estate and Accumulated Depreciation, Date of Acquisition 2011      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
New Lenox, IL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 1,192,464      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,422,488      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,422,488      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,422,488      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2011      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Roseville, CA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 4,752,000      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,800,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 3,695,455      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (96,364)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,695,636      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 3,703,455      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 6,399,091      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 586,317      
Real Estate and Accumulated Depreciation, Date of Acquisition 2011      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Fort Walton Beach, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 1,768,000      
Real Estate and Accumulated Depreciation, Initial Cost, Land 542,200      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,958,790      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 82,553      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 542,200      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,041,343      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,583,543      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 304,107      
Real Estate and Accumulated Depreciation, Date of Acquisition 2011      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Leawood, KS [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 2,963,352      
Real Estate and Accumulated Depreciation, Initial Cost, Land 989,622      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 3,003,541      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 16,197      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 989,622      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 3,019,738      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 4,009,360      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 452,958      
Real Estate and Accumulated Depreciation, Date of Acquisition 2011      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Salt Lake City, UT [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 4,948,724      
Real Estate and Accumulated Depreciation, Initial Cost, Land 0      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 6,810,104      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (44,416)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 6,765,688      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 6,765,688      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 1,050,325      
Real Estate and Accumulated Depreciation, Date of Acquisition 2011      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Burton, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 80,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 80,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 80,000      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2011      
Macomb Township, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 1,793,000      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,605,134      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,605,134      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,605,134      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Madison, AL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 1,552,000      
Real Estate and Accumulated Depreciation, Initial Cost, Land 675,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,317,927      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 675,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,317,927      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,992,927      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 197,688      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Walker, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 887,000      
Real Estate and Accumulated Depreciation, Initial Cost, Land 219,200      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,024,738      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 219,200      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,024,738      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,243,938      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 147,306      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Portland, OR [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 7,969,403      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 161      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 7,969,564      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 7,969,564      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Cochran, GA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 365,714      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,053,726      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 365,714      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,053,726      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,419,440      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 282,389      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Baton Rouge, LA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 1,073,217      
Real Estate and Accumulated Depreciation, Initial Cost, Land 0      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,188,322      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,188,322      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,188,322      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 165,870      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Southfield, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,178,215      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,178,215      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,178,215      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Clifton Heights, PA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,543,941      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 3,038,561      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (3,105)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,543,941      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 3,035,456      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 5,579,397      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 414,216      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Newark, DE [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,117,547      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 4,777,516      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (4,881)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,117,547      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 4,772,635      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 6,890,182      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 651,329      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Vineland, NJ [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 4,102,710      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,501,854      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 7,986      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 4,102,710      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,509,840      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 5,612,550      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 206,034      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Fort Mill, SC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 750,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,187,380      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 750,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,187,380      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,937,380      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 160,790      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Spartanburg, SC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 250,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 765,714      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 4,387      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 250,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 770,101      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,020,101      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 103,114      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Springfield, IL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 302,520      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 653,654      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 10,255      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 302,520      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 663,909      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 966,429      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 88,027      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Jacksonville, NC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 676,930      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,482,748      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 676,930      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,482,748      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,159,678      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 197,699      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Morrow, GA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 525,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,383,489      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (99,849)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 525,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,283,640      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,808,640      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 169,103      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Charlotte, NC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,822,900      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 3,531,275      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (572,344)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,822,900      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,958,931      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 4,781,831      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 384,578      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Lyons, GA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 121,627      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,155,635      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (103,392)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 121,627      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,052,243      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,173,870      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 262,352      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Fuquay-Varina, NC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,042,225      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,763,768      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (255,778)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,042,225      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,507,990      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,550,215      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 192,173      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Minneapolis, MN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,088,015      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 345,958      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (54,430)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 826,635      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 552,908      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,379,543      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 69,836      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Lake Zurich, IL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 780,974      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 7,909,277      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 28,174      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 780,974      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 7,937,451      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 8,718,425      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 1,000,420      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Lebanon, VA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 300,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 612,582      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 20,380      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 300,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 632,962      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 932,962      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 84,862      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Harlingen, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 430,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,614,378      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 12,854      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 430,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,627,232      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,057,232      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 203,402      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Wichita, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 340,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,530,971      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 12,855      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 340,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,543,826      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,883,826      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 192,979      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Pensacola, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 650,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,165,415      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 12,854      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 650,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,178,269      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,828,269      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 147,282      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Pensacola, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 400,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,507,583      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 12,854      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 400,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,520,437      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,920,437      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 190,056      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Venice, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,300,196      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 4,892      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,305,088      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,305,088      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2012      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
St. Joseph, MO [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 377,620      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 7,639,521      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 377,620      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 7,639,521      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 8,017,141      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 939,024      
Real Estate and Accumulated Depreciation, Date of Acquisition 2013      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Statham, GA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 191,919      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 3,851,073      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 191,919      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 3,851,073      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 4,042,992      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 473,359      
Real Estate and Accumulated Depreciation, Date of Acquisition 2013      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
North Las Vegas, NV [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 214,552      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 717,435      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 214,552      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 717,435      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 931,987      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 87,437      
Real Estate and Accumulated Depreciation, Date of Acquisition 2013      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Memphis, TN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 322,520      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 748,890      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 322,520      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 748,890      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,071,410      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 90,494      
Real Estate and Accumulated Depreciation, Date of Acquisition 2013      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Rancho Cordova, CA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,339,612      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,339,612      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,339,612      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2013      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Kissimmee, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,453,500      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 971,683      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,453,500      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 971,683      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,425,183      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 115,388      
Real Estate and Accumulated Depreciation, Date of Acquisition 2013      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Pinellas Park, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,625,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 874,542      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 4,163      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,625,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 878,705      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,503,705      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 100,611      
Real Estate and Accumulated Depreciation, Date of Acquisition 2013      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Manchester, CT [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 397,800      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 325,705      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 397,800      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 325,705      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 723,505      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 38,000      
Real Estate and Accumulated Depreciation, Date of Acquisition 2013      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Rapid City, SD [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,017,800      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,348,032      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,017,800      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,348,032      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,365,832      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 271,490      
Real Estate and Accumulated Depreciation, Date of Acquisition 2013      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Chicago, IL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 272,222      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 649,063      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 2,451      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 272,222      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 651,514      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 923,736      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 74,558      
Real Estate and Accumulated Depreciation, Date of Acquisition 2013      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Brooklyn, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 3,643,700      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 15,079,714      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 14,207      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 3,643,700      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 15,093,921      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 18,737,621      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 1,696,705      
Real Estate and Accumulated Depreciation, Date of Acquisition 2013      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Madisonville, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 96,680      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,087,642      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 9,600      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 96,680      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,097,242      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,193,922      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 122,361      
Real Estate and Accumulated Depreciation, Date of Acquisition 2013      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Baton Rouge, LA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 271,400      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,086,434      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 271,400      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,086,434      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,357,834      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 119,959      
Real Estate and Accumulated Depreciation, Date of Acquisition 2013      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Forest, MS [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 0      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,298,176      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 21,925      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,320,101      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,320,101      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 144,072      
Real Estate and Accumulated Depreciation, Date of Acquisition 2013      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Sun Valley, NV [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 308,495      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,373,336      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (51,008)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 253,495      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,377,328      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,630,823      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 149,140      
Real Estate and Accumulated Depreciation, Date of Acquisition 2013      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Rochester, NY [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,500,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 7,398,639      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 2,017      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,500,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 7,400,656      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 9,900,656      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 793,912      
Real Estate and Accumulated Depreciation, Date of Acquisition 2013      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Allentown, PA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,525,051      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 7,896,613      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,525,051      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 7,896,613      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 10,421,664      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 847,241      
Real Estate and Accumulated Depreciation, Date of Acquisition 2013      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Casselberry, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,804,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 793,101      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,804,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 793,101      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,597,101      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 87,572      
Real Estate and Accumulated Depreciation, Date of Acquisition 2013      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Berwyn, IL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 186,791      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 933,959      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 5,400      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 186,791      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 939,359      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,126,150      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 95,882      
Real Estate and Accumulated Depreciation, Date of Acquisition 2013      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Grand Forks, ND [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,502,609      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,301,337      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 1,801,028      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,502,609      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 4,102,365      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 5,604,974      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 419,826      
Real Estate and Accumulated Depreciation, Date of Acquisition 2013      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Ann Arbor, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 7,089,196      
Real Estate and Accumulated Depreciation, Initial Cost, Land 3,000,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 4,595,757      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 277,040      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 3,000,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 4,872,797      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 7,872,797      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 496,807      
Real Estate and Accumulated Depreciation, Date of Acquisition 2013      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Joplin, MO [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,208,225      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,160,843      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,208,225      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,160,843      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,369,068      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 120,920      
Real Estate and Accumulated Depreciation, Date of Acquisition 2013      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Red Bay, AL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 38,981      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,528,437      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 3,856      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 38,981      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,532,293      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,571,274      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 200,459      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Birmingham, AL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 230,106      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 231,313      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (297)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 230,106      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 231,016      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 461,122      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 17,808      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Birmingham, AL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 245,234      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 251,339      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (324)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 245,234      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 251,015      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 496,249      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 19,350      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Birmingham, AL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 98,271      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 179,824      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 98,271      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 179,824      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 278,095      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 13,862      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Birmingham, AL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 235,641      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 127,477      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (313)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 235,641      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 127,164      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 362,805      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 9,804      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Montgomery, AL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 325,389      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 217,850      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 325,389      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 217,850      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 543,239      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 16,793      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Littleton, CO [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 5,130,974      
Real Estate and Accumulated Depreciation, Initial Cost, Land 819,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 8,756,266      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 399      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 819,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 8,756,665      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 9,575,665      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 711,475      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
St Petersburg, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,225,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,025,247      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 6,592      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,225,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,031,839      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,256,839      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 96,457      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
St Augustine, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 200,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,523,230      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 200,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,523,230      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,723,230      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 123,762      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
East Palatka, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 730,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 575,236      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 6,911      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 730,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 582,147      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,312,147      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 47,258      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Pensacola, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 136,365      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 398,773      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 136,365      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 398,773      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 535,138      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 30,739      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Jacksonville, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 299,312      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 348,862      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 12,497      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 299,312      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 361,359      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 660,671      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 27,073      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Fort Oglethorpe, GA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,842,240      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,844,126      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 7,307      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,842,240      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,851,433      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 4,693,673      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 279,183      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
New Lenox, IL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,010,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 6,206,252      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 107,873      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,010,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 6,314,125      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 8,324,125      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 502,341      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Rockford, IL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 303,395      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,436,873      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 303,395      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,436,873      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,740,268      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 197,996      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Indianapolis, IN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 575,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,871,110      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 575,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,871,110      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,446,110      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 175,416      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Terre Haute, IN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 103,147      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,477,263      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 32,376      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 103,147      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,509,639      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,612,786      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 186,763      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Junction City, KS [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 78,271      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,504,294      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 10,831      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 78,271      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,515,125      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,593,396      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 188,634      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Baton Rouge, LA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 226,919      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 347,691      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 226,919      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 347,691      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 574,610      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 26,801      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Lincoln Park, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 543,303      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,408,544      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 543,303      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,408,544      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,951,847      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 132,050      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Novi, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,803,857      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,488,505      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 22,490      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,803,857      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,510,995      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,314,852      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 113,290      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Bloomfield Hills, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,340,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,003,406      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 364,266      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,341,900      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,365,772      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,707,672      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 183,907      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Moreahead, MN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 511,645      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 870,732      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 8,369      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 511,645      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 879,101      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,390,746      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 69,547      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Park Rapids, MN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 413,151      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 706,884      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 5,925      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 413,151      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 712,809      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,125,960      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 56,396      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Jackson, MS [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 256,789      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 172,184      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 256,789      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 172,184      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 428,973      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 13,273      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Belton, MO [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 714,775      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 7,173,999      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 714,775      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 7,173,999      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 7,888,774      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 538,049      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Great Falls, MT [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 945,765      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 753,222      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 12,712      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 945,765      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 765,934      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,711,699      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 57,435      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Irvington, NJ [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 315,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,313,025      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 315,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,313,025      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,628,025      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 123,094      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Fargo, ND [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 629,484      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 707,799      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 505,065      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 629,484      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,212,864      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,842,348      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 95,952      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Jamestown, ND [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 234,545      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,158,486      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 8,499      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 234,545      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,166,985      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,401,530      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 92,337      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Grand Forks, ND [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 540,658      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 813,776      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 7,714      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 540,658      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 821,490      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,362,148      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 64,990      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Toledo, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 500,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,372,363      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (12)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 500,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,372,351      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,872,351      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 128,657      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Toledo, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 155,250      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 762,500      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 72      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 155,250      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 762,572      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 917,822      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 65,131      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Toledo, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 213,750      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 754,675      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 213,750      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 754,675      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 968,425      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 64,462      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Toledo, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 168,750      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 785,000      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 16,477      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 168,750      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 801,477      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 970,227      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 68,289      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Port Clinton, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 75,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 721,100      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 75,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 721,100      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 796,100      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 61,595      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Mansfield, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 306,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 725,600      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 306,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 725,600      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,031,600      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 61,978      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Orville, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 344,250      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 716,600      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 344,250      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 716,600      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,060,850      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 61,209      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Akron, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 427,750      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 715,700      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 427,750      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 715,700      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,143,450      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 61,133      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Akron, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 696,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 845,000      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 696,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 845,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,541,000      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 72,177      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Hubbard, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 204,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 726,500      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 204,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 726,500      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 930,500      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 62,056      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Youngstown, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 285,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 745,700      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 285,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 745,700      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,030,700      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 63,696      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Calcutta, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 208,050      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 758,750      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 1,462      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 208,050      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 760,212      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 968,262      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 64,852      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Columbus, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 0      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,136,250      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 2,795      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,139,045      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,139,045      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 94,688      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Tulsa, OK [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 459,148      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 640,550      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (16,477)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 459,148      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 624,073      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,083,221      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 60,150      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Ligonier, PA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 330,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 5,021,849      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (9,500)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 330,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 5,012,349      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 5,342,349      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 428,699      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Clarion, PA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 121,200      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 771,500      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 121,200      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 771,500      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 892,700      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 65,900      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Mercer, PA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 121,200      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 770,000      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 121,200      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 770,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 891,200      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 65,772      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Limerick, PA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 369,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 369,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 369,000      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Harrisbuarg, PA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 124,757      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,446,773      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 11,175      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 124,757      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,457,948      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,582,705      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 109,264      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Andreson, SC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 781,200      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 4,441,535      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 781,200      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 4,441,535      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 5,222,735      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 434,901      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Easley, SC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 332,275      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 268,612      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 332,275      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 268,612      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 600,887      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 20,706      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Spartanburg, SC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 141,307      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 446,706      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 141,307      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 446,706      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 588,013      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 34,434      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Spartanburg, SC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 94,770      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 261,640      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 94,770      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 261,640      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 356,410      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 20,168      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Columbia, SC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 303,932      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,221,964      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (13,830)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 303,932      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,208,134      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,512,066      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 93,724      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Alcoa, TN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 329,074      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 270,719      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 329,074      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 270,719      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 599,793      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 20,868      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Knoxville, TN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 214,077      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 286,037      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 214,077      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 286,037      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 500,114      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 22,049      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Red Bank, TN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 229,100      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 302,146      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 229,100      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 302,146      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 531,246      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 23,290      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
New Tazewell, TN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 91,006      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 328,561      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 5,074      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 91,006      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 333,635      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 424,641      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 25,015      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Maryville, TN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 94,682      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,529,621      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 27,243      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 94,682      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,556,864      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,651,546      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 116,399      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Morristown, TN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 46,404      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 801,506      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 4,990      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 46,404      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 806,496      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 852,900      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 60,479      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Clinton, TN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 69,625      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,177,927      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 11,564      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 69,625      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,189,491      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,259,116      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 89,200      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Knoxville, TN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 160,057      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,265,025      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 12,927      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 160,057      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,277,952      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,438,009      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 170,824      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Sweetwater, TN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 79,100      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,009,290      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 6,740      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 79,100      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,016,030      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,095,130      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 76,190      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
McKinney, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,671,020      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 6,785,815      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 331      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,671,020      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 6,786,146      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 9,457,166      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 593,759      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Forest Va [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 282,600      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 956,027      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 282,600      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 956,027      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,238,627      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 83,651      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Colonial Heights, VA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 547,692      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,059,557      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (5,963)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 547,692      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,053,594      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,601,286      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 81,218      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Chester, VA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 300,583      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 794,417      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (3,777)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 300,583      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 790,640      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,091,223      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 60,947      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Midlothian, VA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 232,337      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 802,602      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (3,839)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 232,337      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 798,763      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,031,100      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 61,573      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Ashland, VA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 426,396      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 965,925      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (5,050)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 426,396      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 960,875      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,387,271      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 74,070      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Mecanicsville, VA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 219,496      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 906,590      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (4,225)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 219,496      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 902,365      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,121,861      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 69,560      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Glen Allen, VA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 590,101      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,129,495      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (6,867)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 590,101      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,122,628      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,712,729      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 86,540      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Burlington, WA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 610,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 3,647,279      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (4,602)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 610,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 3,642,677      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 4,252,677      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 282,178      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Wausau, WI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 909,092      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,405,899      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 909,092      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,405,899      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,314,991      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 123,015      
Real Estate and Accumulated Depreciation, Date of Acquisition 2014      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Foley AL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 305,332      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 506,203      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 305,332      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 506,203      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 811,535      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 38,893      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Sulligent, AL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 58,803      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,085,906      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 58,803      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,085,906      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,144,709      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 76,853      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Eutaw, AL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 103,746      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,212,006      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 2,935      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 103,746      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,214,941      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,318,687      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 85,982      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Tallassee, AL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 154,437      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 850,448      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 11,125      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 154,437      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 861,573      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,016,010      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 56,758      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Orange Park, AL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 649,652      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,775,000      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 649,652      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,775,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,424,652      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 103,542      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Aurora, CO [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 976,865      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,999,651      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 1,743      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 976,865      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,001,394      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,978,259      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 104,236      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Pace, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 37,860      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 524,400      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 37,860      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 524,400      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 562,260      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 38,137      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Pensacola, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 309,607      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 775,084      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (25)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 309,607      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 775,059      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,084,666      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 56,326      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Jacksonville Beach, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 623,031      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 370,612      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 623,031      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 370,612      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 993,643      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 25,436      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Freeport, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 312,615      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,277,386      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 312,615      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,277,386      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,590,001      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 79,837      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Glenwood, GA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 29,489      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,027,370      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 29,489      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,027,370      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,056,859      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 70,586      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Albany, GA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 47,955      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 641,123      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 47,955      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 641,123      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 689,078      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 43,997      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Belvidere, IL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 184,136      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 644,492      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 184,136      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 644,492      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 828,628      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 44,196      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Springfield, IL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 680,045      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,870,606      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 680,045      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,870,606      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,550,651      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 191,373      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Peru, IL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 380,254      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,125,498      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 380,254      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,125,498      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,505,752      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 119,559      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Davenport, IA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 776,366      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 6,623,542      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 776,366      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 6,623,542      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 7,399,908      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 413,971      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Le Mars, IA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 53,198      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 613,534      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (300,000)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 53,198      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 313,534      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 366,732      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 38,346      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Buffalo Center, IA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 159,353      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 700,460      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 159,353      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 700,460      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 859,813      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 42,319      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Sheffield, IA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 131,794      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 729,543      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 131,794      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 729,543      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 861,337      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 44,077      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Topeka, KS [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,853,601      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 12,427,839      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 12,465      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,853,601      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 12,440,304      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 14,293,905      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 880,135      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Lenexa, KS [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 303,175      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,186,864      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 303,175      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,186,864      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,490,039      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 109,343      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Tompkinsville , KY [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 70,252      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,132,033      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 70,252      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,132,033      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,202,285      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 80,116      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Hazard, KY [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 8,392,841      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 13,731,648      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (16,857)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 8,375,591      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 13,732,041      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 22,107,632      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 686,597      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
DeQuincy, LA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 114,407      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,881,056      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 4,725      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 114,407      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,885,781      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,000,188      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 133,295      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Portland, MA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 0      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 3,831,860      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 3,172      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 3,835,032      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,835,032      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 239,650      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Flint, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 120,078      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,561,015      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 20,490      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 120,078      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,581,505      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,701,583      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 129,075      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Hutchinson, MN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 67,914      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 720,799      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 67,914      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 720,799      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 788,713      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 43,548      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Lowry City, MO [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 103,202      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 614,065      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 103,202      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 614,065      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 717,267      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 38,379      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Branson, MO [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 564,066      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 940,585      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 175      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 564,066      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 940,760      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,504,826      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 50,957      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Branson, MO [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 721,135      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 717,081      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 940      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 721,135      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 718,021      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,439,156      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 38,884      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Enfield, NH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 93,628      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,295,320      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 48,989      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 93,628      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,344,309      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,437,937      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 94,417      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Marietta, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 319,157      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,225,026      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 319,157      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,225,026      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,544,183      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 84,162      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Lorain, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 293,831      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,044,956      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 293,831      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,044,956      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,338,787      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 69,664      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Franklin, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 264,153      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,191,777      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 264,153      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,191,777      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,455,930      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 76,969      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Elyria, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 82,023      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 910,404      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 82,023      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 910,404      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 992,427      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 56,900      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Elyria, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 126,641      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 695,072      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 126,641      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 695,072      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 821,713      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 43,442      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Bedford Heights, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 226,920      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 959,528      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 226,920      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 959,528      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,186,448      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 57,972      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Newburgh Heights, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 224,040      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 959,099      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 224,040      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 959,099      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,183,139      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 57,946      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Warrensville Heights, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 186,209      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 920,496      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 4,900      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 186,209      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 925,396      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,111,605      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 56,144      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Heath, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 325,381      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 757,994      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 135      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 325,381      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 758,129      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,083,510      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 41,065      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Lima, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 335,386      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 592,154      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 335,386      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 592,154      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 927,540      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 29,608      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Elk City, OK [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 45,212      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,242,220      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 45,212      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,242,220      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,287,432      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 80,226      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Salem, OR [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,450,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,951,167      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 1,346,640      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,450,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 4,297,807      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 5,747,807      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 214,887      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Westfield, PA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 47,346      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,117,723      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 47,346      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,117,723      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,165,069      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 81,400      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Bloomsburg, PA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 152,645      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,091,115      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 152,645      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,091,115      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,243,760      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 70,468      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Altoona, PA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 555,903      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 9,489,791      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 1,017      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 555,903      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 9,490,808      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 10,046,711      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 533,843      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Grindstone, PA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 288,246      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 500,379      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 288,246      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 500,379      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 788,625      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 25,019      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Blythewood, SC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 475,393      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 878,586      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 475,393      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 878,586      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,353,979      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 61,245      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Columbia, SC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 249,900      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 809,935      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 249,900      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 809,935      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,059,835      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 55,583      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Liberty, SC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 27,929      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,222,856      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 90      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 27,929      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,222,946      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,250,875      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 83,989      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Blacksburg, SC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 27,547      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,468,101      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 27,547      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,468,101      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,495,648      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 97,874      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Easley, SC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 51,325      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,187,506      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 51,325      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,187,506      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,238,831      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 76,693      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Fountain Inn, SC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 107,633      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,076,633      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 107,633      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,076,633      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,184,266      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 69,533      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Walterboro, SC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 21,414      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,156,820      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 21,414      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,156,820      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,178,234      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 74,711      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Jackson, TN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 277,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 495,103      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 277,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 495,103      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 772,103      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 24,755      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Arlington, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 494,755      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 710,416      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 494,755      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 710,416      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,205,171      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 51,508      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Sweetwater, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 626,578      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 652,127      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 626,578      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 652,127      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,278,705      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 47,551      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Fort Worth, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,999,944      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 6,198,198      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,999,944      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 6,198,198      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 9,198,142      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 413,214      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Brenham, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 355,486      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 17,280,895      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 581      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 355,486      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 17,281,476      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 17,636,962      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 1,152,060      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Corpus Christi, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 316,916      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,140,056      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 316,916      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,140,056      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,456,972      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 124,837      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Harlingen, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 126,102      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 869,779      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 126,102      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 869,779      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 995,881      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 50,737      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Midland, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 194,174      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 5,005,720      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 2,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 194,174      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 5,007,720      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 5,201,894      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 281,659      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Rockwall, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 578,225      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,768,930      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 210      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 578,225      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,769,140      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,347,365      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 88,452      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Bluefield, VA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 88,431      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,161,840      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 88,431      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,161,840      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,250,271      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 79,832      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Princeton, WV [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 111,653      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,029,090      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 111,653      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,029,090      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,140,743      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 70,688      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Beckley, WV [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 162,024      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 991,653      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 162,024      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 991,653      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,153,677      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 68,126      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Martinsburg, WV [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 620,892      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 943,163      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 620,892      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 943,163      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,564,055      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 47,158      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Grand Chute, WI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,766,417      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 7,084,942      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 4,700      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,766,417      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 7,089,642      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 9,856,059      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 486,949      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
New Richmond, WI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 71,969      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 648,850      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 71,969      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 648,850      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 720,819      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 40,553      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Ashland, WI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 142,287      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 684,545      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 142,287      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 684,545      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 826,832      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 41,358      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Baraboo, WI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 142,563      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 653,176      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 142,563      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 653,176      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 795,739      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 39,463      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Mauston, WI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 289,882      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 3,302,490      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 289,882      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 3,302,490      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,592,372      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 178,885      
Real Estate and Accumulated Depreciation, Date of Acquisition 2015      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Decatur, AL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 337,738      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 510,706      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 337,738      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 510,706      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 848,444      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 14,896      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Greenville, AL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 203,722      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 905,780      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 9,911      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 203,722      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 915,691      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,119,413      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 22,849      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Bullhead City, AZ [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 177,500      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,364,406      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 177,500      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,364,406      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,541,906      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 59,678      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Page, AZ [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 256,982      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,299,283      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 256,982      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,299,283      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,556,265      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 56,844      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Safford, AZ [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 349,269      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,196,307      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 349,269      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,196,307      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,545,576      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 42,239      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Tuscon, AZ [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 3,208,580      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 4,410,679      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 3,208,580      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 4,410,679      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 7,619,259      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 165,400      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Bentonville, AR [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 610,926      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 897,562      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 170      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 610,926      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 897,732      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,508,658      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 39,305      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Sunnyvale, CA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 7,351,903      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 4,638,432      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 735      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 7,351,903      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 4,639,167      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 11,991,070      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 183,437      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Upland, CA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 4,413,871      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 8,318,559      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 4,413,871      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 8,318,559      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 12,732,430      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 329,276      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Whittier, CA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 4,237,918      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 7,343,869      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 4,237,918      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 7,343,869      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 11,581,787      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 290,695      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Aurora, CO [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 847,349      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 834,301      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 847,349      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 834,301      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,681,650      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 20,858      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Aurora, CO [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,132,676      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 5,716,367      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 32,402      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,132,676      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 5,748,769      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 6,881,445      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 143,582      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Evergreen, CO [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,998,860      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 3,827,245      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,998,860      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 3,827,245      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 5,826,105      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 151,495      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Apopka, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,996,995      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 3,456,839      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 14,303      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,996,995      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 3,471,142      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 5,468,137      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 136,863      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Lakeland, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 61,000      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,227,037      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 61,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,227,037      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,288,037      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 35,789      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Mt Dora, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,678,671      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 3,691,615      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,678,671      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 3,691,615      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 5,370,286      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 146,126      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
North Miami Beach, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,622,742      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 512,717      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 10,328      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,622,742      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 523,045      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,145,787      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 13,022      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Orlando, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 903,411      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,627,159      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (24,843)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 903,411      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,602,316      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,505,727      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 53,319      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Port Orange, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,493,863      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 3,114,697      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,493,863      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 3,114,697      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 4,608,560      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 123,290      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Royal Palm Beach, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,052,463      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 956,768      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,052,463      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 956,768      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,009,231      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 33,886      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Sarasota, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,769,175      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 3,587,992      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 22,885      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,769,175      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 3,610,877      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 5,380,052      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 142,025      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Venice, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 281,936      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,291,748      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 281,936      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,291,748      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,573,684      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 42,966      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Vero Beach, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 4,469,033      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 4,469,033      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 4,469,033      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Dalton, GA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 211,362      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 220,927      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 211,362      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 220,927      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 432,289      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 8,263      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Crystal Lake, IL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,446,521      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 7,012,819      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 120      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,446,521      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 7,012,939      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 9,459,460      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 189,933      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Glenwood, IL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 815,483      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 970,108      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 815,483      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 970,108      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,785,591      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 28,295      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Morris, IL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,206,749      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,062,495      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,206,749      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,062,495      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,269,244      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 81,640      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Wheaton, IL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 447,291      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 751,458      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 447,291      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 751,458      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,198,749      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 31,311      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Bicknell, IN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 215,037      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,381,471      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 215,037      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,381,471      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,596,508      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 79,278      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Fort Wayne, IN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 711,430      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,258,357      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 711,430      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,258,357      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,969,787      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 60,296      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Indianapolis, IN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 734,434      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 970,175      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 734,434      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 970,175      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,704,609      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 42,443      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Des Moines, IA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 322,797      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,374,153      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 322,797      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,374,153      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,696,950      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 54,394      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Frankfort, KY [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 0      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 514,277      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 514,277      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 514,277      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 17,699      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
DeRidder, LA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 814,891      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,156,542      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 480      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 814,891      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,157,022      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,971,913      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 80,904      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Lake Charles, LA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,308,418      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 4,235,719      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 5,761      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,308,418      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 4,241,480      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 5,549,898      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 114,753      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Shreveport, LA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 891,872      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,058,257      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 891,872      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,058,257      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,950,129      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 77,194      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Marshall, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 339,813      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 339,813      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 339,813      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Mt Pleasant, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 0      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 511,282      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (254)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 511,028      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 511,028      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 12,777      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Norton Shores, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 495,605      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 667,982      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 7,274      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 495,605      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 675,256      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,170,861      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 18,243      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Portage, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 262,181      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,102,990      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 262,181      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,102,990      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,365,171      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 39,064      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Stephenson, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 223,152      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,044,947      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 270      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 223,152      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,045,217      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,268,369      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 26,128      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Sterling, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 127,844      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 905,607      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 25,464      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 127,844      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 931,071      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,058,915      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 26,949      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Cambridge, MN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 536,812      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,334,601      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 536,812      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,334,601      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,871,413      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 52,828      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Eagle Bend, MN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 96,558      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,165,437      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 96,558      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,165,437      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,261,995      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 36,360      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Brandon, MS [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 428,464      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 969,346      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 428,464      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 969,346      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,397,810      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 40,389      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Clinton, MS [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 370,264      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,057,143      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 370,264      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,057,143      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,427,407      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 44,048      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Columbus, MS [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,103,458      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,128,089      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,103,458      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,128,089      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,231,547      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 97,537      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Flowood, MS [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 360,267      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,044,807      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 360,267      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,044,807      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,405,074      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 43,534      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Holly Springs, MS [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 413,316      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 952,574      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 413,316      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 952,574      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,365,890      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 35,600      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Jackson, MS [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 242,796      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 963,188      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 242,796      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 963,188      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,205,984      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 40,133      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Jackson, MS [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 732,944      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,862,813      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 732,944      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,862,813      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,595,757      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 89,463      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Meridian, MS [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 396,329      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,152,729      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 396,329      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,152,729      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,549,058      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 48,009      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Pearl, MS [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 299,839      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 616,351      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 7,355      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 299,839      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 623,706      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 923,545      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 15,538      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Ridgeland, MS [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 407,041      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 864,498      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 407,041      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 864,498      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,271,539      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 36,021      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Bowling Green, MO [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 360,201      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,809,170      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 360,201      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,809,170      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,169,371      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 87,742      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
St Robert, MO [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 394,859      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,305,366      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 11,379      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 394,859      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,316,745      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,711,604      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 32,860      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Hamilton, MT [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 558,047      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,083,570      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 442      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 558,047      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,084,012      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,642,059      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 29,356      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Beatty, NV [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 198,928      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,265,084      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 8,051      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 198,928      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,273,135      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,472,063      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 39,669      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Alamogordo, NM [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 654,965      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,716,166      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 143      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 654,965      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,716,309      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,371,274      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 84,842      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Alamogordo, NM [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 524,763      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 941,615      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 7,522      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 524,763      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 949,137      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,473,900      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 25,660      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Alcalde, NM [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 435,486      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 836,499      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 435,486      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 836,499      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,271,985      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 20,912      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Cimarron, NM [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 345,693      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,236,437      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 7,613      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 345,693      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,244,050      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,589,743      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 33,647      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
La Luz, NM [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 487,401      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 835,455      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 487,401      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 835,455      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,322,856      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 22,627      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Fayetteville, NC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,267,529      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,527,462      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 16,292      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,267,529      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,543,754      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,811,283      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 68,794      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Gastonia, NC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 401,119      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 979,803      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 1,631      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 401,119      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 981,434      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,382,553      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 26,580      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Devils Lake, ND [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 323,508      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,133,773      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 955      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 323,508      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,134,728      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,458,236      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 37,357      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
West Fargo, ND [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 789,855      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 600,976      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 255,626      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 789,855      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 856,602      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,646,457      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 20,383      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Cambridge, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 168,717      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,113,232      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 168,717      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,113,232      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,281,949      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 51,023      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Columbus, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,109,044      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,291,313      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,109,044      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,291,313      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,400,357      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 48,344      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Grove City, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 334,032      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 176,274      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 334,032      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 176,274      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 510,306      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 6,592      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Lorain, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 808,162      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,390,481      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 10,000      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 808,162      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,400,481      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,208,643      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 60,834      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Reynoldsburg, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 843,336      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,197,966      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 843,336      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,197,966      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,041,302      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 44,861      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Springfield, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 982,451      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 3,957,512      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition (3,500)      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 982,451      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 3,954,012      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 4,936,463      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 181,158      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Ardmore, OK [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 571,993      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,590,151      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 571,993      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,590,151      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,162,144      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 62,945      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Dillon, SC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 85,896      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,697,160      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 85,896      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,697,160      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,783,056      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 81,322      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Jasper, TN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 190,582      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 966,125      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 6,888      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 190,582      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 973,013      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,163,595      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 24,298      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Austin, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 4,986,082      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 5,179,446      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 9,988      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 4,986,082      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 5,189,434      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 10,175,516      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 248,182      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Carthage, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 597,995      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,965,290      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 597,995      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,965,290      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,563,285      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 73,705      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Cedar Park, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,386,802      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 4,656,229      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,386,802      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 4,656,229      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 6,043,031      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 184,309      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Granbury, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 944,223      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,362,540      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 944,223      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,362,540      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,306,763      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 88,603      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Hemphill, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 250,503      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,955,918      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 11,886      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 250,503      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,967,804      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,218,307      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 61,107      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Lampasas, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 245,312      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,063,701      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 245,312      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,063,701      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,309,013      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 39,883      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Lubbock, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,501,556      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,341,031      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,501,556      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,341,031      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,842,587      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 87,799      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Odessa, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 921,043      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,434,384      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 5,615      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 921,043      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,439,999      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,361,042      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 91,310      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Port Arthur, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,889,732      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 8,121,417      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 55      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,889,732      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 8,121,472      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 10,011,204      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 270,482      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Tyler, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 4,446,648      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 3,178,302      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 2,650      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 4,446,648      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 3,180,952      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 7,627,600      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 104,137      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Farr West, UT [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 679,206      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,040,737      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 3,062      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 679,206      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,043,799      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,723,005      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 37,858      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Provo, UT [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,692,785      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 5,874,584      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 40,450      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,692,785      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 5,915,034      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 7,607,819      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 208,176      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
St George, UT [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 313,107      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,009,161      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 13,030      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 313,107      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,022,191      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,335,298      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 44,151      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Tappahannock, VA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,076,745      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 14,904      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,076,745      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 14,904      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,091,649      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 526      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Kirkland, WA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 816,072      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 816,072      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 816,072      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Manitowoc, WI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 879,237      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 4,467,960      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 879,237      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 4,467,960      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 5,347,197      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 148,764      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Oak Creek, WI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 487,277      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 3,082,180      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 41,775      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 487,277      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 3,123,955      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,611,232      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 141,924      
Real Estate and Accumulated Depreciation, Date of Acquisition 2016      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Oxford, AL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 148,407      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 641,820      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 148,407      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 641,820      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 790,227      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 10,666      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Oxford, AL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 255,786      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 7,273,871      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 255,786      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 7,273,871      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 7,529,657      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 121,231      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Oxford, AL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 24,875      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 600,936      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 24,875      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 600,936      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 625,811      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 10,016      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Jonesboro, AR [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 3,656,554      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 3,219,456      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 3,656,554      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 3,219,456      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 6,876,010      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 17,989      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Lowell, AR [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 949,519      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,435,056      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 949,519      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,435,056      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,384,575      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Southington, CT [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,088,181      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,287,837      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,088,181      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,287,837      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,376,018      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Millsboro, DE [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 3,501,109      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 3,501,109      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,501,109      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Jacksonville,FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,298,885      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,894,565      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,298,885      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,894,565      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 5,193,450      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 6,030      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Orange Park, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 214,858      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,304,095      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 214,858      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,304,095      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,518,953      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 28,769      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Port Richey, FL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,140,182      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,649,773      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,140,182      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,649,773      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,789,955      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 20,608      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Americus, GA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,318,463      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,318,463      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,318,463      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Brunswick, GA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,279,688      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,158,863      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,279,688      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,158,863      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,438,551      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 40,299      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Brunswick, GA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 126,335      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,626,530      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 126,335      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,626,530      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,752,865      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 3,389      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Buford, GA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 341,860      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,023,813      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 341,860      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,023,813      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,365,673      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 12,761      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Carrollton, GA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 597,465      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 886,644      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 597,465      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 886,644      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,484,109      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 9,152      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Decatur, GA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 558,859      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,429,106      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 558,859      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,429,106      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,987,965      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 2,977      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Metter, GA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 256,743      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 766,818      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 256,743      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 766,818      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,023,561      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 7,944      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Villa Rica, GA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 410,936      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,311,444      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 410,936      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,311,444      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,722,380      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 19,095      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Chicago, IL 1 [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,899,155      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 9,822,986      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,899,155      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 9,822,986      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 12,722,141      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 184,090      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Chicago, IL 2 [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,081,151      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 5,197,315      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,081,151      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 5,197,315      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 7,278,466      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 97,078      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Galesburg, IL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 214,280      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 979,108      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 214,280      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 979,108      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,193,388      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 12,215      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Mundelein, IL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,238,743      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,238,743      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,238,743      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Mundelein, IL 1 [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,743,222      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,743,222      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,743,222      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Mundelein, IL 2 [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,803,068      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,803,068      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,803,068      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Springfield, IL 2 [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 574,805      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,554,786      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 574,805      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,554,786      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,129,591      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Woodstock, IL [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 683,419      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,002,207      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 683,419      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,002,207      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,685,626      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 2,088      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Frankfort, IN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 50,458      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,008,275      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 50,458      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,008,275      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,058,733      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 33,471      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Kokomo, IN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 95,196      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,484,778      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 95,196      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,484,778      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,579,974      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 3,093      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Nashville, IN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 484,117      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,458,215      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 484,117      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,458,215      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,942,332      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 30,489      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Roeland Park, KS [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 7,829,806      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 7,829,806      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 7,829,806      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Georgetown, KY 1 [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,996,456      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 6,315,768      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,996,456      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 6,315,768      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 8,312,224      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 85,869      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Hopkinsville, KY [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 413,269      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 996,619      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 413,269      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 996,619      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,409,888      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 12,427      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Salyersville, KY [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 289,663      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 906,455      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 289,663      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 906,455      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,196,118      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 13,182      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Amite, LA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 601,238      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,695,242      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 601,238      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,695,242      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,296,480      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 24,670      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Bossier City, LA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 797,899      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,925,864      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 797,899      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,925,864      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,723,763      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 6,096      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Kenner, LA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 323,188      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 859,298      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 323,188      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 859,298      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,182,486      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 5,324      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Mandeville, LA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 834,891      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,294,812      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 834,891      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,294,812      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,129,703      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 8,016      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
New Orleans, LA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 0      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 6,846,313      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 6,846,313      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 6,846,313      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 85,529      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Baltimore, MD [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 782,819      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 745,092      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 782,819      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 745,092      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,527,911      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 3,005      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Canton, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 3,655,296      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 3,655,296      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,655,296      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Grand Rapids, MI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 7,015,035      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 7,015,035      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 7,015,035      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Bloomington, MN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,491,302      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,491,302      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,491,302      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Maplewood, MN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,050,168      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 3,517,854      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,050,168      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 3,517,854      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 5,568,022      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 14,658      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Monticello, MN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 449,025      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 979,816      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 449,025      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 979,816      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,428,841      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 22,418      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Mountain Iron, MN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 177,918      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,139,849      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 177,918      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,139,849      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,317,767      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 14,227      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Gulfport, MS [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 671,824      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,176,505      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 671,824      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,176,505      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,848,329      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 17,137      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Jackson, MS [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 802,230      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,434,997      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 802,230      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,434,997      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,237,227      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 20,902      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
McComb, MS [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 67,026      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 685,426      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 67,026      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 685,426      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 752,452      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 8,519      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Kansas City, MO [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,390,880      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,588,573      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,390,880      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,588,573      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,979,453      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 26,039      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Springfield, MO [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 616,344      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,448,360      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 616,344      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,448,360      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,064,704      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
St. Charles, MO [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 736,242      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,122,426      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 736,242      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,122,426      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,858,668      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 39,777      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
St. Peters, MO [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,364,670      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,364,670      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,364,670      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Boulder City, NV [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 566,639      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 993,399      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 566,639      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 993,399      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,560,038      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 12,341      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Egg Harbor, NJ [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 520,510      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,087,374      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 520,510      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,087,374      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,607,884      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 20,361      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Secaucus, NJ [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 21,500,000      
Real Estate and Accumulated Depreciation, Initial Cost, Land 19,915,781      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 17,306,541      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 19,915,781      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 17,306,541      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 37,222,322      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Sewell, NJ [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,809,771      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 6,892,134      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,809,771      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 6,892,134      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 8,701,905      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 86,144      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Santa Fe, NM [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,072,340      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 4,013,237      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,072,340      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 4,013,237      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 5,085,577      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 100,328      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Statesville, NC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 287,467      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 867,849      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 287,467      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 867,849      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,155,316      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 18,075      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Jacksonville, NC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 308,321      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 875,652      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 308,321      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 875,652      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,183,973      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 10,920      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Minot, ND [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 928,796      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,619,726      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 928,796      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,619,726      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,548,522      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 23,551      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Grandview Heights, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,276,870      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 8,557,690      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,276,870      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 8,557,690      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 9,834,560      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 124,636      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Hillard, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,001,228      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,001,228      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,001,228      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Edmond, OK [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,063,243      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 3,816,155      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,063,243      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 3,816,155      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 4,879,398      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 15,901      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Oklahoma City, OK [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 868,648      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,820,174      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 868,648      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,820,174      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,688,822      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 14,952      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Erie, PA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 425,267      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,284,883      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 425,267      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,284,883      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,710,150      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 10,574      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Pittsburgh, PA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 692,454      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,509,358      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 692,454      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,509,358      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,201,812      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 31,190      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Gaffney, SC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 200,845      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 878,455      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 200,845      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 878,455      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,079,300      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 10,952      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Sumter, SC [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 132,204      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,095,478      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 132,204      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,095,478      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,227,682      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 15,944      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Chattanooga, TN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,089,237      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 3,595,808      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,089,237      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 3,595,808      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 5,685,045      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 7,491      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Etowah, TN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 74,057      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 862,436      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 74,057      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 862,436      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 936,493      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 16,148      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Memphis, TN [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,661,764      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 3,874,356      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,661,764      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 3,874,356      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 5,536,120      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 80,656      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Alamo, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 104,878      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 821,355      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 104,878      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 821,355      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 926,233      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Andrews, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 172,373      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 817,252      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 172,373      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 817,252      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 989,625      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 15,323      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Arlington, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 497,852      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,601,007      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 497,852      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,601,007      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 2,098,859      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 23,321      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Canyon Lake, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 382,522      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,026,179      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 382,522      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,026,179      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,408,701      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Corpus Christi, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 185,375      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,413,298      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 185,375      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,413,298      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,598,673      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 20,460      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Fort Stockton, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 185,474      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,186,339      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 185,474      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,186,339      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,371,813      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 17,267      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Fort Worth, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,016,587      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 4,622,507      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,016,587      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 4,622,507      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 5,639,094      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 28,820      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Lufkin, TX [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 1,497,171      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 4,948,906      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,497,171      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 4,948,906      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 6,446,077      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 92,708      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Heber, UT [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 367,013      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,204,635      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 367,013      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,204,635      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,571,648      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 24,186      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Newport News, VA [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 2,458,053      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 5,390,475      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,458,053      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 5,390,475      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 7,848,528      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 76,330      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Appleton, WI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 417,249      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 1,525,582      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 417,249      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 1,525,582      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,942,831      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 18,935      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Onalaska, WI [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 821,084      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 2,651,772      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 821,084      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 2,651,772      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 3,472,856      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 38,609      
Real Estate and Accumulated Depreciation, Date of Acquisition 2017      
Real Estate and Accumulated Depreciation, Life on Which Depreciation in Latest Income Statement is Computed 40 years      
Sub Total [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances $ 89,094,878      
Real Estate and Accumulated Depreciation, Initial Cost, Land 410,008,398      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 848,998,112      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 17,096,625      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 405,850,207      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 870,252,928      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 1,276,103,135      
Real Estate and Accumulated Depreciation, Accumulated Depreciation 85,467,011      
Property Under Development [Member] | Various [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 0      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 25,402,255      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 25,402,255      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 25,402,255      
Real Estate and Accumulated Depreciation, Accumulated Depreciation 0      
Property Under Development [Member] | Sub Total [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0      
Real Estate and Accumulated Depreciation, Initial Cost, Land 0      
Real Estate and Accumulated Depreciation, Initial Cost, Buildings and Improvements 25,402,255      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 0      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Buildings and Improvements 25,402,255      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Total 25,402,255      
Real Estate and Accumulated Depreciation, Accumulated Depreciation $ 0