XML 61 R48.htm IDEA: XBRL DOCUMENT v3.4.0.3
BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (Details)
 3 Months Ended 12 Months Ended
Jul. 31, 2013
USD ($)
Apr. 30, 2016
USD ($)
$ / shares
Property
Segment
Apr. 30, 2015
USD ($)
Property
Unit
Redemption
Partners
Segment
shares
Apr. 30, 2014
USD ($)
Property
State
Apr. 30, 2013
USD ($)
Property
Unit
BASIS OF PRESENTATION [Abstract]          
Interest in operating partnership (in hundredths)     89.90% 83.80%  
Percentage of general interest partnership (in hundredths)     100.00%    
Redemption basis     1:1    
Redemptions by limited partner, maximum | Redemption     2    
Number of units to redeem, minimum (in units) | shares     1,000    
Period to hold the beneficial interest, minimum     1 year    
RECLASSIFICATIONS          
Number of reportable segments | Segment     5    
REAL ESTATE INVESTMENTS [Abstract]          
Number of year after date of acquisition related to adjustment of real estate preliminary allocations of purchase price     1 year    
Impairment of retail property     $ 6,105,000 $ 44,426,000 $ 305,000
Impairment of real estate investments     $ 4,663,000 $ 7,700,000  
Number of impaired properties | Property     6 15 1
Liabilities held for sale     $ 138,800,000    
IDENTIFIED INTANGIBLE ASSETS AND LIABILITIES AND GOODWILL [Abstract]          
New intangible assets     416,000 $ 900,000  
Addition to intangible liabilities     $ 0 $ 0  
Weighted average lives of intangible assets acquired     6 months 8 months 12 days  
Goodwill book value     $ 1,718,000 $ 1,100,000  
Recognized impairment goodwill     0 0  
Goodwill recognized     852,000    
Goodwill derecognized     40,000 7,000 $ 14,000
PROPERTY AND EQUIPMENT [Abstract]          
Property and equipment cost     3,000,000 3,700,000  
Accumulated depreciation     1,464,000 2,041,000  
Compensating Balances [Line Items]          
Compensating balance     14,300,000    
Certificates of deposit     329,000    
Decrease in lender holdbacks     10,738,000 3,780,000 1,891,000
Increase in lender holdbacks for improvements     1,204,000 11,045,000 2,466,000
Allowance for Doubtful Accounts Receivable [Roll Forward]          
Provision     $ 967,000 $ 434,000 $ 665,000
INCOME TAXES [Abstract]          
Minimum dividend distribution percentage (in hundredths)     90.00%    
Dividend distribution percentage (in hundredths)     90.00% 90.00% 90.00%
Distribution of federal income tax (in hundredths)       25.74% 28.41%
Distribution of capital gain (in hundredths)       23.09% 3.09%
Distribution made as return of capital (in hundredths)       51.17% 68.50%
Other Liabilities [Line Items]          
Proceeds from sale of property $ 7,900,000        
Contract for deed 29,000,000        
Sale lease-back recorded in other liabilities 7,900,000        
Unusual or Infrequent Item [Line Items]          
Number of 32-unit buildings | Unit         2
Number of units in building | Unit         32
Number of buildings destroyed | Property         1
Total gain on involuntary conversion     $ 0 $ 2,480,000 $ 5,084,000
Insurance proceeds received for reimbursement for business interruption (loss of rents)         409,000
Number of 15-unit buildings | Unit     1    
Number of 57-unit buildings | Unit     1    
Insurance proceeds received for flood clean up costs and redevelopment     $ 6,000,000    
Subsequent Event [Member]          
RECLASSIFICATIONS          
Number of reportable segments | Segment   3      
Discontinued Operations, Held-for-sale [Member]          
REAL ESTATE INVESTMENTS [Abstract]          
Impairment of real estate investments       36,700,000  
Buildings and Improvements [Member] | Minimum [Member]          
REAL ESTATE INVESTMENTS [Abstract]          
Estimated useful life of assets (in years)     20 years    
Buildings and Improvements [Member] | Maximum [Member]          
REAL ESTATE INVESTMENTS [Abstract]          
Estimated useful life of assets (in years)     40 years    
Furniture, Fixtures and Equipment [Member] | Minimum [Member]          
REAL ESTATE INVESTMENTS [Abstract]          
Estimated useful life of assets (in years)     5 years    
Furniture, Fixtures and Equipment [Member] | Maximum [Member]          
REAL ESTATE INVESTMENTS [Abstract]          
Estimated useful life of assets (in years)     12 years    
Renovations and Improvements [Member] | Minimum [Member]          
REAL ESTATE INVESTMENTS [Abstract]          
Estimated useful life of assets (in years)     5 years    
Renovations and Improvements [Member] | Maximum [Member]          
REAL ESTATE INVESTMENTS [Abstract]          
Estimated useful life of assets (in years)     10 years    
Kalispell, Montana, Retail Property [Member]          
REAL ESTATE INVESTMENTS [Abstract]          
Impairment of retail property     $ 2,100,000    
Number of impaired properties | Property     1    
Golden Valley, Minnesota, Office Property [Member]          
REAL ESTATE INVESTMENTS [Abstract]          
Impairment of retail property     $ 183,000 $ 2,100,000  
Number of impaired properties | Property     1 1  
Minneapolis, Minnesota, Office Property [Member]          
REAL ESTATE INVESTMENTS [Abstract]          
Impairment of retail property     $ 1,800,000    
Number of impaired properties | Property     1    
Boise, Idaho, Office Property [Member]          
REAL ESTATE INVESTMENTS [Abstract]          
Impairment of retail property     $ 1,400,000    
Number of impaired properties | Property     1    
Eagan, Minnesota, Unimproved Land [Member]          
REAL ESTATE INVESTMENTS [Abstract]          
Impairment of retail property     $ 98,000   $ 305,000
Number of impaired properties | Property     1   1
Weston, Wisconsin, Unimproved Land [Member]          
REAL ESTATE INVESTMENTS [Abstract]          
Impairment of retail property     $ 442,000    
Number of impaired properties | Property     1    
St. Louis Park, Minnesota, Industrial Property [Member]          
REAL ESTATE INVESTMENTS [Abstract]          
Impairment of retail property       $ 864,000  
Number of impaired properties | Property       1  
Bloomington, Minnesota, Office Property [Member]          
REAL ESTATE INVESTMENTS [Abstract]          
Impairment of retail property       $ 329,000  
Number of impaired properties | Property       1  
Anoka, Minnesota, Retail Property [Member]          
REAL ESTATE INVESTMENTS [Abstract]          
Impairment of retail property       $ 265,000  
Number of impaired properties | Property       1  
Clive, Iowa, Industrial Property [Member]          
REAL ESTATE INVESTMENTS [Abstract]          
Impairment of retail property       $ 402,000  
Number of impaired properties | Property       1  
Roseville, Minnesota, Industrial Property [Member]          
REAL ESTATE INVESTMENTS [Abstract]          
Impairment of retail property       $ 4,800,000  
Number of impaired properties | Property       1  
Edina, Minnesota, Office Property [Member]          
REAL ESTATE INVESTMENTS [Abstract]          
Impairment of retail property       $ 835,000  
Number of impaired properties | Property       1  
Various states, Office Property [Member]          
REAL ESTATE INVESTMENTS [Abstract]          
Impairment of retail property       $ 34,900,000  
Number of impaired properties | Property       8  
Number of states in which impaired properties are located | State       4  
Number of properties in portfolio | Property       9  
Various states, Office Property [Member] | Loans Payable [Member] | CMBS Loan [Member]          
REAL ESTATE INVESTMENTS [Abstract]          
Non-recourse loan     $ 122,600,000    
Residential Property [Member]          
IDENTIFIED INTANGIBLE ASSETS AND LIABILITIES AND GOODWILL [Abstract]          
Number of real estate properties disposed | Property     1    
Commercial Property [Member]          
IDENTIFIED INTANGIBLE ASSETS AND LIABILITIES AND GOODWILL [Abstract]          
Number of real estate properties disposed | Property     2    
Commercial Healthcare [Member] | Discontinued Operations, Held-for-sale [Member] | Subsequent Event [Member]          
RECLASSIFICATIONS          
Number of properties | Property   1      
REAL ESTATE INVESTMENTS [Abstract]          
Number of real estate properties classified as held for sale | $ / shares   1      
Retail Property [Member] | Discontinued Operations, Held-for-sale [Member] | Subsequent Event [Member]          
RECLASSIFICATIONS          
Number of properties | Property   17      
REAL ESTATE INVESTMENTS [Abstract]          
Number of real estate properties classified as held for sale | $ / shares   17      
Office Property [Member]          
REAL ESTATE INVESTMENTS [Abstract]          
Number of real estate properties classified as held for sale | Property     1 1  
Office Property [Member] | Discontinued Operations, Held-for-sale [Member] | Subsequent Event [Member]          
RECLASSIFICATIONS          
Number of properties | Property   48      
REAL ESTATE INVESTMENTS [Abstract]          
Number of real estate properties classified as held for sale | $ / shares   48      
Medical Property [Member]          
REAL ESTATE INVESTMENTS [Abstract]          
Number of real estate properties classified as held for sale | Property     1    
Assets held for sale     $ 22,900,000    
Medical Property [Member] | Various states, Office Property [Member] | Loans Payable [Member] | CMBS Loan [Member]          
REAL ESTATE INVESTMENTS [Abstract]          
Maturity date       Oct. 06, 2016  
Allowance for Doubtful Accounts [Member]          
Allowance for Doubtful Accounts Receivable [Roll Forward]          
Balance at beginning of year $ 1,393,000 $ 1,156,000 1,044,000 $ 1,393,000 $ 1,363,000
Provision     967,000 434,000 665,000
Write-off     (855,000) (783,000) (635,000)
Balance at close of year     1,156,000 1,044,000 1,393,000
Flood [Member]          
Unusual or Infrequent Item [Line Items]          
Proceeds from final settlement     8,500,000    
Total gain on involuntary conversion       0 2,821,000
2012 Fire [Member]          
Unusual or Infrequent Item [Line Items]          
Proceeds from final settlement     5,100,000    
Total gain on involuntary conversion       2,480,000 $ 2,263,000
2013 Fire [Member]          
Unusual or Infrequent Item [Line Items]          
Insurance proceeds received for flood clean up costs and redevelopment       1,000,000  
2013 Fire [Member] | Building One [Member]          
Unusual or Infrequent Item [Line Items]          
Number of units in building | Unit         15
2013 Fire [Member] | Building Two [Member]          
Unusual or Infrequent Item [Line Items]          
Number of units in building | Unit         57
IRET - Minot Apartments, LLC [Member]          
Variable Interest Entity [Line Items]          
Total estimated cost for joint venture     $ 52,200,000    
Percentage of ownership in VIE (in hundredths)     52.90%    
IRET - Minot Apartments, LLC [Member] | Third Party Debt [Member]          
Variable Interest Entity [Line Items]          
Percentage of project financed (in hundredths)     69.00%    
IRET - Minot Apartments, LLC [Member] | Debt from IRET [Member]          
Variable Interest Entity [Line Items]          
Percentage of project financed (in hundredths)     7.00%    
IRET - Minot Apartments, LLC [Member] | Real Estate Development Company [Member]          
Variable Interest Entity [Line Items]          
Percentage of ownership in VIE (in hundredths)     47.10%    
IRET - 71 France, LLC [Member]          
Variable Interest Entity [Line Items]          
Total estimated cost for joint venture     $ 73,300,000    
Number of other partners in joint venture | Partners     2    
Percentage of ownership in VIE (in hundredths)     52.60%    
Threshold in-service period of project     24 months    
IRET - 71 France, LLC [Member] | Third Party Debt [Member]          
Variable Interest Entity [Line Items]          
Percentage of project financed (in hundredths)     69.00%    
IRET - 71 France, LLC [Member] | Debt from IRET [Member]          
Variable Interest Entity [Line Items]          
Percentage of project financed (in hundredths)     7.00%    
IRET - 71 France, LLC [Member] | Real Estate Development Company [Member]          
Variable Interest Entity [Line Items]          
Percentage of ownership in VIE (in hundredths)     47.40%    
Discontinued Operations [Member]          
REAL ESTATE INVESTMENTS [Abstract]          
Impairment of real estate investments     $ 1,442,000 $ 36,726,000 $ 305,000
Dacotah Bank, Minot, North Dakota [Member]          
Compensating Balances [Line Items]          
Compensating balance     $ 350,000    
Remaining terms of certificates of deposit     2 years    
United Community Bank, Minot, North Dakota [Member]          
Compensating Balances [Line Items]          
Compensating balance     $ 275,000    
Remaining terms of certificates of deposit     6 months    
First International Bank, Watford City, North Dakota [Member]          
Compensating Balances [Line Items]          
Compensating balance     $ 6,100,000    
First International Bank, Watford City, North Dakota [Member] | Discontinued Operations, Held-for-sale [Member]          
Compensating Balances [Line Items]          
Compensating balance     1,400,000    
Peoples State Bank of Velva, North Dakota [Member]          
Compensating Balances [Line Items]          
Compensating balance     225,000    
Associated Bank, Green Bay, Wisconsin [Member]          
Compensating Balances [Line Items]          
Compensating balance     3,600,000    
American National Bank, Omaha, Nebraska [Member]          
Compensating Balances [Line Items]          
Compensating balance     400,000    
Private Bank [Member]          
Compensating Balances [Line Items]          
Compensating balance     2,000,000    
Commerce Bank [Member]          
Compensating Balances [Line Items]          
Compensating balance     100,000    
Bremer Bank [Member]          
Compensating Balances [Line Items]          
Compensating balance     1,300,000    
Financing Liability [Member]          
Other Liabilities [Line Items]          
Financing liability balance     $ 7,900,000