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ACQUISITIONS AND DISPOSITIONS (Details) (USD $) | 12 Months Ended
--- | ---
Apr. 30, 2013 | Apr. 30, 2012
Significant Acquisitions and Disposals [Line Items] |  |  |  |
Cash paid for acquisition of property | $ 135,800,000 |  | $ 97,100,000 |
Assumed debt | 12,500,000 |  | 7,200,000 |
Noncontrolling Interest in Operating Partnerships | 12,600,000 |  | 8,100,000 |
Estimated cost of construction | 25,800,000 |  |  |
Transaction costs expensed during the period |  |  | 542,000 |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Land | 29,361,000 |  | 12,479,000 |
Buildings | 77,316,000 |  | 64,010,000 |
Intangible assets | 1,564,000 |  | 417,000 |
Acquisition costs | 108,241,000 |  | 76,906,000 |
Results of operations from acquired properties [Abstract] |  |  |  |
Total revenue | 6,497,000 |  | 4,213,000 |
Net income | (66,000) |  | 950,000 |
Dispositions [Abstract] |  |  |  |
Sales price | 26,273,000 |  | 3,237,000 |
Book value and sales cost | 19,388,000 |  | 2,888,000 |
Gain/(Loss) | 6,885,000 |  | 349,000 |
Multi-Family Residential [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Land | 6,854,000 |  | 4,265,000 |
Buildings | 77,316,000 |  | 33,320,000 |
Intangible assets | 1,564,000 |  | 0 |
Acquisition costs | 85,734,000 |  | 37,585,000 |
Dispositions [Abstract] |  |  |  |
Sales price | 8,850,000 |  |  |
Book value and sales cost | 5,272,000 |  |  |
Gain/(Loss) | 3,578,000 |  |  |
Commercial-Healthcare [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Land |  |  | 3,198,000 |
Buildings |  |  | 30,690,000 |
Intangible assets |  |  | 417,000 |
Acquisition costs |  |  | 34,305,000 |
Unimproved Land [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Land | 22,507,000 |  | 5,016,000 |
Buildings | 0 |  | 0 |
Intangible assets | 0 |  | 0 |
Acquisition costs | 22,507,000 |  | 5,016,000 |
Other Disposition [Member] |  |  |  |
Dispositions [Abstract] |  |  |  |
Sales price | 698,000 |  |  |
Book value and sales cost | 757,000 |  |  |
Gain/(Loss) | (59,000) |  |  |
Arcata - Golden Valley, MN [Member] | Unimproved Land [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition | Apr. 30, 2013 |  |  |
Land | 2,088,000 |  |  |
Buildings | 0 |  |  |
Intangible assets | 0 |  |  |
Acquisition costs | 2,088,000 |  |  |
Ashland Grand Forks ND [Member] | Multi-Family Residential [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition |  |  | Mar. 16, 2012 |
Land |  |  | 741,000 |
Buildings |  |  | 7,569,000 |
Intangible assets |  |  | 0 |
Acquisition costs |  |  | 8,310,000 |
Number of apartment units |  |  | 84 |
Badger Hills Rochester, MN [Member] | Unimproved Land [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition | Dec. 14, 2012 | [1] |  |
Land | 1,050,000 | [1] |  |
Buildings | 0 | [1] |  |
Intangible assets | 0 | [1] |  |
Acquisition costs | 1,050,000 | [1] |  |
Bismarck 4916 - Bismarck, ND [Member] | Unimproved Land [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition | Apr. 12, 2013 |  |  |
Land | 3,250,000 |  |  |
Buildings | 0 |  |  |
Intangible assets | 0 |  |  |
Acquisition costs | 3,250,000 |  |  |
Candlelight - Fargo, ND [Member] | Multi-Family Residential [Member] |  |  |  |
Dispositions [Abstract] |  |  |  |
Number of apartment units | 66 |  |  |
Date Disposal | Nov. 27, 2012 |  |  |
Sales price | 1,950,000 |  |  |
Book value and sales cost | 1,178,000 |  |  |
Gain/(Loss) | 772,000 |  |  |
Colony - Lincoln, NE [Member] | Multi-Family Residential [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition | Jun. 04, 2012 |  |  |
Land | 1,515,000 |  |  |
Buildings | 15,731,000 |  |  |
Intangible assets | 254,000 |  |  |
Acquisition costs | 17,500,000 |  |  |
Number of apartment units | 232 |  |  |
Commons at Southgate - Minot, ND [Member] | Unimproved Land [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition | Jan. 22, 2013 | [2] |  |
Land | 3,691,000 | [2] |  |
Buildings | 0 | [2] |  |
Intangible assets | 0 | [2] |  |
Acquisition costs | 3,691,000 | [2] |  |
Cottage West Twin Homes - Sioux Falls, SD [Member] | Multi-Family Residential [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition |  |  | Oct. 12, 2011 |
Land |  |  | 968,000 |
Buildings |  |  | 3,762,000 |
Intangible assets |  |  | 0 |
Acquisition costs |  |  | 4,730,000 |
Number of apartment units |  |  | 50 |
Cypress Court - St. Cloud, MN [Member] | Unimproved Land [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition | Aug. 10, 2012 |  |  |
Land | 447,000 |  |  |
Buildings | 0 |  |  |
Intangible assets | 0 |  |  |
Acquisition costs | 447,000 |  |  |
Cypress Court Apartment Development St. Cloud, MN [Member] | Unimproved Land [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition | Aug. 10, 2012 | [3] |  |
Land | 1,136,000 | [3] |  |
Buildings | 0 | [3] |  |
Intangible assets | 0 | [3] |  |
Acquisition costs | 1,136,000 | [3] |  |
East Grand Station East Grand Forks, MN [Member] | Commercial Retail [Member] |  |  |  |
Dispositions [Abstract] |  |  |  |
Area of a real estate property (in square feet) |  |  | 12,556 |
Date Disposal |  |  | Mar. 03, 2012 |
Sales price |  |  | 1,062,000 |
Book value and sales cost |  |  | 1,302,000 |
Gain/(Loss) |  |  | (240,000) |
Edina 6525 Drew Ave S Edina, MN [Member] | Commercial-Healthcare [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition |  |  | Oct. 13, 2011 |
Land |  |  | 388,000 |
Buildings |  |  | 117,000 |
Intangible assets |  |  | 0 |
Acquisition costs |  |  | 505,000 |
Area of a real estate property (in square feet) |  |  | 3,431 |
Evergreen II - Isanti, MN [Member] | Multi-Family Residential [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition |  |  | Nov. 01, 2011 |
Land |  |  | 691,000 |
Buildings |  |  | 2,784,000 |
Intangible assets |  |  | 0 |
Acquisition costs |  |  | 3,475,000 |
Number of apartment units |  |  | 36 |
Gables Townhomes - Sioux Falls, SD [Member] | Multi-Family Residential [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition |  |  | Oct. 12, 2011 |
Land |  |  | 349,000 |
Buildings |  |  | 1,921,000 |
Intangible assets |  |  | 0 |
Acquisition costs |  |  | 2,270,000 |
Number of apartment units |  |  | 24 |
Georgetown Square Condominiums 5 and 6 [Member] | Other Disposition [Member] |  |  |  |
Dispositions [Abstract] |  |  |  |
Date Disposal | Jun. 21, 2012 |  |  |
Sales price | 330,000 |  |  |
Book value and sales cost | 336,000 |  |  |
Gain/(Loss) | (6,000) |  |  |
Georgetown Square Condominiums 3 and 4 [Member] | Other Disposition [Member] |  |  |  |
Dispositions [Abstract] |  |  |  |
Date Disposal | Aug. 02, 2012 |  |  |
Sales price | 368,000 |  |  |
Book value and sales cost | 421,000 |  |  |
Gain/(Loss) | (53,000) |  |  |
Grand Forks Grand Forks, ND [Member] | Unimproved Land [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition | Dec. 31, 2012 |  |  |
Land | 4,278,000 |  |  |
Buildings | 0 |  |  |
Intangible assets | 0 |  |  |
Acquisition costs | 4,278,000 |  |  |
Grand Forks 2150 Grand Forks, ND [Member] | Unimproved Land [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition | Mar. 25, 2013 |  |  |
Land | 1,600,000 |  |  |
Buildings | 0 |  |  |
Intangible assets | 0 |  |  |
Acquisition costs | 1,600,000 |  |  |
Grand Gateway St Cloud MN [Member] | Multi-Family Residential [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition |  |  | Feb. 16, 2012 |
Land |  |  | 814,000 |
Buildings |  |  | 7,086,000 |
Intangible assets |  |  | 0 |
Acquisition costs |  |  | 7,900,000 |
Number of apartment units |  |  | 116 |
Industrial-Office Build-to-Suit - Minot, ND [Member] | Unimproved Land [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition |  |  | Sep. 07, 2011 |
Land |  |  | 416,000 |
Buildings |  |  | 0 |
Intangible assets |  |  | 0 |
Acquisition costs |  |  | 416,000 |
Kentwood Thomasville Kentwood, MI [Member] | Commercial Retail [Member] |  |  |  |
Dispositions [Abstract] |  |  |  |
Area of a real estate property (in square feet) | 16,080 |  |  |
Date Disposal | Jun. 20, 2012 |  |  |
Sales price | 625,000 |  |  |
Book value and sales cost | 692,000 |  |  |
Gain/(Loss) | (67,000) |  |  |
Lakeside Village - Lincoln, NE [Member] | Multi-Family Residential [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition | Jun. 04, 2012 |  |  |
Land | 1,215,000 |  |  |
Buildings | 15,837,000 |  |  |
Intangible assets | 198,000 |  |  |
Acquisition costs | 17,250,000 |  |  |
Number of apartment units | 208 |  |  |
Landing at Southgate - Minot, ND [Member] | Unimproved Land [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition | Jan. 22, 2013 | [2] |  |
Land | 2,262,000 | [2] |  |
Buildings | 0 | [2] |  |
Intangible assets | 0 | [2] |  |
Acquisition costs | 2,262,000 | [2] |  |
Livingstone Pamida Livingston, MT [Member] | Commercial Retail [Member] |  |  |  |
Dispositions [Abstract] |  |  |  |
Area of a real estate property (in square feet) |  |  | 41,200 |
Date Disposal |  |  | Aug. 01, 2011 |
Sales price |  |  | 2,175,000 |
Book value and sales cost |  |  | 1,586,000 |
Gain/(Loss) |  |  | 589,000 |
Meadow Wind Land Casper, WY [Member] | Commercial-Healthcare [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition |  |  | Sep. 01, 2011 |
Land |  |  | 50,000 |
Buildings |  |  | 0 |
Intangible assets |  |  | 0 |
Acquisition costs |  |  | 50,000 |
Minot (Southgate Lot 4) - Minot, ND [Member] | Unimproved Land [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition | Jan. 11, 2013 |  |  |
Land | 1,882,000 |  |  |
Buildings | 0 |  |  |
Intangible assets | 0 |  |  |
Acquisition costs | 1,882,000 |  |  |
Prairiewood Meadows - Fargo, ND [Member] | Multi-Family Residential [Member] |  |  |  |
Dispositions [Abstract] |  |  |  |
Number of apartment units | 85 |  |  |
Date Disposal | Sep. 27, 2012 |  |  |
Sales price | 3,450,000 |  |  |
Book value and sales cost | 2,846,000 |  |  |
Gain/(Loss) | 604,000 |  |  |
Ponds at Heritage Place - Sartell, MN [Member] | Multi-Family Residential [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition | Oct. 10, 2012 |  |  |
Land | 395,000 |  |  |
Buildings | 4,564,000 |  |  |
Intangible assets | 61,000 |  |  |
Acquisition costs | 5,020,000 |  |  |
Number of apartment units | 58 |  |  |
Regency Park Estates - St. Cloud, MN [Member] | Multi-Family Residential [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition |  |  | Aug. 01, 2011 |
Land |  |  | 702,000 |
Buildings |  |  | 10,198,000 |
Intangible assets |  |  | 0 |
Acquisition costs |  |  | 10,900,000 |
Number of apartment units |  |  | 147 |
Renaissance Heights Williston ND [Member] | Unimproved Land [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition |  |  | Apr. 11, 2012 |
Land |  |  | 4,600,000 |
Buildings |  |  | 0 |
Intangible assets |  |  | 0 |
Acquisition costs |  |  | 4,600,000 |
Spring Creek American Falls - American Falls, ID [Member] | Commercial-Healthcare [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition |  |  | Sep. 01, 2011 |
Land |  |  | 145,000 |
Buildings |  |  | 3,870,000 |
Intangible assets |  |  | 55,000 |
Acquisition costs |  |  | 4,070,000 |
Area of a real estate property (in square feet) |  |  | 17,273 |
Spring Creek Soda Springs - Soda Springs, ID [Member] | Commercial-Healthcare [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition |  |  | Sep. 01, 2011 |
Land |  |  | 66,000 |
Buildings |  |  | 2,134,000 |
Intangible assets |  |  | 30,000 |
Acquisition costs |  |  | 2,230,000 |
Area of a real estate property (in square feet) |  |  | 15,571 |
Spring Creek Eagle - Eagle, ID [Member] | Commercial-Healthcare [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition |  |  | Sep. 01, 2011 |
Land |  |  | 263,000 |
Buildings |  |  | 3,775,000 |
Intangible assets |  |  | 62,000 |
Acquisition costs |  |  | 4,100,000 |
Area of a real estate property (in square feet) |  |  | 15,559 |
Spring Creek Meridian - Meridian, ID [Member] | Commercial-Healthcare [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition |  |  | Sep. 01, 2011 |
Land |  |  | 424,000 |
Buildings |  |  | 6,724,000 |
Intangible assets |  |  | 102,000 |
Acquisition costs |  |  | 7,250,000 |
Area of a real estate property (in square feet) |  |  | 31,820 |
Spring Creek Overland Boise, ID [Member] | Commercial-Healthcare [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition |  |  | Sep. 01, 2011 |
Land |  |  | 687,000 |
Buildings |  |  | 5,941,000 |
Intangible assets |  |  | 97,000 |
Acquisition costs |  |  | 6,725,000 |
Area of a real estate property (in square feet) |  |  | 26,605 |
Spring Creek-Boise - Boise, ID [Member] | Commercial-Healthcare [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition |  |  | Sep. 01, 2011 |
Land |  |  | 708,000 |
Buildings |  |  | 4,296,000 |
Intangible assets |  |  | 71,000 |
Acquisition costs |  |  | 5,075,000 |
Area of a real estate property (in square feet) |  |  | 16,311 |
Spring Creek Ustick - Meridian, ID [Member] | Commercial-Healthcare [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition |  |  | Sep. 01, 2011 |
Land |  |  | 467,000 |
Buildings |  |  | 3,833,000 |
Intangible assets |  |  | 0 |
Acquisition costs |  |  | 4,300,000 |
Area of a real estate property (in square feet) |  |  | 26,605 |
Stevens Point Stevens Point WI [Member] | Commercial-Healthcare [Member] |  |  |  |
Dispositions [Abstract] |  |  |  |
Area of a real estate property (in square feet) | 47,950 |  |  |
Date Disposal | Apr. 25, 2013 |  |  |
Sales price | 16,100,000 |  |  |
Book value and sales cost | 12,667,000 |  |  |
Gain/(Loss) | 3,433,000 |  |  |
Terrace on the Green Fargo, ND [Member] | Multi-Family Residential [Member] |  |  |  |
Dispositions [Abstract] |  |  |  |
Number of apartment units | 116 |  |  |
Date Disposal | Sep. 27, 2012 |  |  |
Sales price | 3,450,000 |  |  |
Book value and sales cost | 1,248,000 |  |  |
Gain/(Loss) | 2,202,000 |  |  |
University Commons Williston, ND [Member] | Unimproved Land [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition | Aug. 01, 2012 |  |  |
Land | 823,000 |  |  |
Buildings | 0 |  |  |
Intangible assets | 0 |  |  |
Acquisition costs | 823,000 |  |  |
Villa West - Topeka, KS [Member] | Multi-Family Residential [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition | May 08, 2012 |  |  |
Land | 1,590,000 |  |  |
Buildings | 15,760,000 |  |  |
Intangible assets | 300,000 |  |  |
Acquisition costs | 17,650,000 |  |  |
Number of apartment units | 308 |  |  |
Whispering Ridge - Omaha, NE [Member] | Multi-Family Residential [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition | Apr. 24, 2013 |  |  |
Land | 2,139,000 |  |  |
Buildings | 25,424,000 |  |  |
Intangible assets | 751,000 |  |  |
Acquisition costs | 28,314,000 |  |  |
Number of apartment units | 336 |  |  |
Development Projects Placed in Service [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Land | 0 |  | 700,000 |
Buildings | 27,529,000 |  | 19,494,000 |
Acquisition costs | 27,529,000 |  | 20,194,000 |
Area of a real estate property (in square feet) | 3,702 | [4] |  |
Development Projects Placed in Service [Member] | Multi-Family Residential [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Land | 0 |  |  |
Buildings | 14,005,000 |  |  |
Acquisition costs | 14,005,000 |  |  |
Development Projects Placed in Service [Member] | Commercial-Healthcare [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Land | 0 |  | 0 |
Buildings | 8,272,000 |  | 9,637,000 |
Acquisition costs | 8,272,000 |  | 9,637,000 |
Development Projects Placed in Service [Member] | Arrowhead First International Bank - Minot ND [Member] | Commercial Retail [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition | Mar. 19, 2013 | [4] |  |
Land | 0 | [4] |  |
Buildings | 1,165,000 | [4] |  |
Acquisition costs | 1,165,000 | [4] |  |
Development Projects Placed in Service [Member] | Quarry Ridge II - Rochester, MN [Member] | Multi-Family Residential [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition | Jun. 29, 2012 | [5] |  |
Land | 0 | [5] |  |
Buildings | 4,591,000 | [5] |  |
Acquisition costs | 4,591,000 | [5] |  |
Number of apartment units | 159 | [5] |  |
Development Projects Placed in Service [Member] | First Avenue - Minot ND [Member] | Multi-Family Residential [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition | Apr. 15, 2013 | [6] |  |
Land | 0 | [6] |  |
Buildings | 2,356,000 | [6] |  |
Acquisition costs | 2,356,000 | [6] |  |
Number of apartment units | 20 | [6] |  |
Development Projects Placed in Service [Member] | Jamestown Buffalo Mall - Jamestown, ND [Member] | Commercial Retail [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition |  |  | Jun. 15, 2011 |
Land |  |  | 0 |
Buildings |  |  | 879,000 |
Acquisition costs |  |  | 879,000 |
Area of a real estate property (in square feet) |  |  | 19,037 | [7]
Development Projects Placed in Service [Member] | Jamestown Medical Office Building - Jamestown, ND [Member] | Commercial-Healthcare [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition | Jan. 01, 2013 | [8] |  |
Land | 0 | [8] |  |
Buildings | 6,597,000 | [8] |  |
Acquisition costs | 6,597,000 | [8] |  |
Area of a real estate property (in square feet) | 45,222 | [8] |  |
Development Projects Placed in Service [Member] | Meadow Winds Addition Casper, WY [Member] | Commercial-Healthcare [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition |  |  | Dec. 30, 2011 | [9]
Land |  |  | 0 | [9]
Buildings |  |  | 3,952,000 | [9]
Acquisition costs |  |  | 3,952,000 | [9]
Area of a real estate property (in square feet) |  |  | 22,193 | [9]
Development Projects Placed in Service [Member] | Minot IPS - Minot, ND [Member] | Commercial Industrial [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition | Dec. 17, 2012 | [10] |  |
Land | 0 | [10] |  |
Buildings | 4,087,000 | [10] |  |
Acquisition costs | 4,087,000 | [10] |  |
Area of a real estate property (in square feet) | 27,698 | [10] |  |
Development Projects Placed in Service [Member] | Spring Wind Expansion Laramie, WY [Member] | Commercial-Healthcare [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition | Nov. 16, 2012 | [11] |  |
Land | 0 | [11] |  |
Buildings | 1,675,000 | [11] |  |
Acquisition costs | 1,675,000 | [11] |  |
Area of a real estate property (in square feet) | 26,662 | [11] |  |
Development Projects Placed in Service [Member] | Trinity at Plaza 16 - Minot, ND [Member] | Commercial-Healthcare [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition |  |  | Sep. 23, 2011 | [12]
Land |  |  | 0 | [12]
Buildings |  |  | 5,685,000 | [12]
Acquisition costs |  |  | 5,685,000 | [12]
Area of a real estate property (in square feet) |  |  | 24,795 |
Development Projects Placed in Service [Member] | Williston Garden Buildings 1 and 2 - Williston, ND [Member] | Multi-Family Residential [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition |  |  | Apr. 27, 2012 | [13]
Land |  |  | 700,000 | [13]
Buildings |  |  | 8,978,000 | [13]
Acquisition costs |  |  | 9,678,000 | [13]
Number of apartment units |  |  | 72 | [13]
Development Projects Placed in Service [Member] | Williston Garden Buildings 3 and 4 Williston, ND [Member] | Multi-Family Residential [Member] |  |  |  |
Acquisitions and development projects placed in service [Abstract] |  |  |  |
Date Acquisition | Jul. 31, 2012 | [14] |  |
Land | 0 | [14] |  |
Buildings | 7,058,000 | [14] |  |
Acquisition costs | $ 7,058,000 | [14] |  |
Number of apartment units | 73 | [14] |  |
[1] | Acquisition of unimproved land consisted of two parcels acquired separately on December 14 and December 20, 2012, respectively.
[2] | Land is owned by a joint venture entity in which the Company has an approximately 51% interest. The joint venture is consolidated in IRET’s financial statements.
[3] | Land is owned by a joint venture in which the Company has an approximately 79% interest. The joint venture is consolidated in IRET’s financial statements.
[4] | Development property placed in service March 19, 2013. Additional costs paid in fiscal year 2012 totaled approximately $75,000, for a total project cost at April 30, 2013 of $1.2 million
[5] | Development property placed in service June 29, 2012. Additional costs paid in fiscal years 2012 and 2011, and land acquired in fiscal year 2007, totaled $13.0 million, for a total project cost at April 30, 2013 of $17.6 million.
[6] | Redevelopment property placed in service April 15, 2013. Additional costs paid in fiscal years 2012 and 2011 totaled approximately $321,000, for a total project cost at April 30, 2013 of $2.7 million.
[7] | Construction project placed in service June 15, 2011. Additional costs paid in fiscal year 2011 totaled $1.4 million, for a total project cost at April 30, 2012 of $2.3 million.
[8] | Development property placed in service January 1, 2013. Additional costs paid in fiscal year 2012 totaled $1.0 million, for a total project cost at April 30, 2013 of $7.6 million.
[9] | Expansion project placed in service December 30, 2011.
[10] | Development property placed in service December 17, 2012. Additional costs paid in fiscal year 2012 totaled $1.8 million, for a total project cost at April 30, 2013 of $5.9 million.
[11] | Expansion project placed in service November 16, 2012. Additional costs paid in fiscal year 2012 totaled $1.8 million, for a total project cost at April 30, 2013 of $3.5 million.
[12] | Development property placed in service September 23, 2011. Additional costs paid in fiscal year 2011 totaled $3.3 million, for a total project cost at April 30, 2012 of $9.0 million.
[13] | Development property placed in service April 27, 2012. Buildings 3 and 4 of this project are expected to be placed in service during the first quarter of fiscal year 2013.
[14] | Development property placed in service July 31, 2012. Buildings 1 and 2 were placed in service in fiscal year 2012. Additional costs paid in fiscal year 2012 totaled $12.0 million, for a total project cost at April 30, 2013 of $19.1 million.

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