XML 100 R39.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Basis of Presentation and Summary of Significant Accounting Policies Basis of Presentation and Summary of Significant Accounting Policies - Income Taxes (Details) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Accounting Policies [Abstract]    
Real estate investment trust required distribution 90.00%  
Valuation allowance $ 26,427,000 $ 27,351,000
Unrecognized tax benefits $ 0