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ACQUISITIONS AND DISPOSITIONS - Property Dispositions (Details) $ in Thousands | 3 Months Ended | 8 Months Ended | 12 Months Ended
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Dec. 31, 2020 USD ($) unit | Sep. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) unit | Sep. 30, 2019 USD ($) | Jun. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2020 USD ($) property unit | Dec. 31, 2019 USD ($) unit | Dec. 31, 2018 USD ($) | Apr. 30, 2018 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Sales price | $ 45,540 | $ 44,138 | $ 43,910 | $ 44,406 | $ 45,777 | $ 47,436 | $ 46,934 | $ 45,608 | $ 121,871 | $ 177,994 | $ 185,755 | $ 121,871 | $ 169,745
Disposed of by Sale |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Sales Price | 44,300 |  |  |  | 203,093 |  |  |  |  | 44,300 | 203,093 |  |
Book Value and Sale Cost | 18,828 |  |  |  | 105,866 |  |  |  |  | 18,828 | 105,866 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  | $ 25,472 | 97,227 |  |
Retail Site | Disposed of by Sale |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of properties sold | property |  |  |  |  |  |  |  |  |  | 1 |  |  |
MultiFamily Same-Store | Disposed of by Sale |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of properties sold | property |  |  |  |  |  |  |  |  |  | 4 |  |  |
Sales Price | 42,500 |  |  |  | 186,424 |  |  |  |  | $ 42,500 | 186,424 |  |
Book Value and Sale Cost | $ 16,864 |  |  |  | $ 91,514 |  |  |  |  | 16,864 | 91,514 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  | $ 25,636 | $ 94,910 |  |
MultiFamily Same-Store | Disposed of by Sale | Forest Park - Grand Forks, ND |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of apartment homes | unit | 268 |  |  |  |  |  |  |  |  | 268 |  |  |
Sales Price | $ 19,625 |  |  |  |  |  |  |  |  | $ 19,625 |  |  |
Book Value and Sale Cost | $ 6,884 |  |  |  |  |  |  |  |  | 6,884 |  |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  | $ 12,741 |  |  |
MultiFamily Same-Store | Disposed of by Sale | Landmark, Grand Forks, ND |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of apartment homes | unit | 90 |  |  |  |  |  |  |  |  | 90 |  |  |
Sales Price | $ 3,725 |  |  |  |  |  |  |  |  | $ 3,725 |  |  |
Book Value and Sale Cost | $ 1,348 |  |  |  |  |  |  |  |  | 1,348 |  |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  | $ 2,377 |  |  |
MultiFamily Same-Store | Disposed of by Sale | Southwind, Grand Forks, ND |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of apartment homes | unit | 164 |  |  |  |  |  |  |  |  | 164 |  |  |
Sales Price | $ 10,850 |  |  |  |  |  |  |  |  | $ 10,850 |  |  |
Book Value and Sale Cost | $ 4,573 |  |  |  |  |  |  |  |  | 4,573 |  |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  | $ 6,277 |  |  |
MultiFamily Same-Store | Disposed of by Sale | Valley Park - Grand Forks, ND |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of apartment homes | unit | 168 |  |  |  |  |  |  |  |  | 168 |  |  |
Sales Price | $ 8,300 |  |  |  |  |  |  |  |  | $ 8,300 |  |  |
Book Value and Sale Cost | 4,059 |  |  |  |  |  |  |  |  | 4,059 |  |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  | $ 4,241 |  |  |
MultiFamily Same-Store | Disposed of by Sale | Pinehurst - Billings, Montana |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of apartment homes | unit |  |  |  |  | 21 |  |  |  |  |  | 21 |  |
Sales Price |  |  |  |  | $ 1,675 |  |  |  |  |  | $ 1,675 |  |
Book Value and Sale Cost |  |  |  |  | $ 961 |  |  |  |  |  | 961 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | $ 714 |  |
MultiFamily Same-Store | Disposed of by Sale | Brookfield Village - Topeka, Kansas |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of apartment homes | unit |  |  |  |  | 160 |  |  |  |  |  | 160 |  |
Sales Price |  |  |  |  | $ 10,350 |  |  |  |  |  | $ 10,350 |  |
Book Value and Sale Cost |  |  |  |  | $ 5,853 |  |  |  |  |  | 5,853 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | $ 4,497 |  |
MultiFamily Same-Store | Disposed of by Sale | Crown Colony - Topeka, Kansas |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of apartment homes | unit |  |  |  |  | 220 |  |  |  |  |  | 220 |  |
Sales Price |  |  |  |  | $ 17,200 |  |  |  |  |  | $ 17,200 |  |
Book Value and Sale Cost |  |  |  |  | $ 7,876 |  |  |  |  |  | 7,876 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | $ 9,324 |  |
MultiFamily Same-Store | Disposed of by Sale | Mariposa - Topeka, Kansas |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of apartment homes | unit |  |  |  |  | 54 |  |  |  |  |  | 54 |  |
Sales Price |  |  |  |  | $ 6,100 |  |  |  |  |  | $ 6,100 |  |
Book Value and Sale Cost |  |  |  |  | $ 4,290 |  |  |  |  |  | 4,290 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | $ 1,810 |  |
MultiFamily Same-Store | Disposed of by Sale | Sherwood - Topeka, Kansas |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of apartment homes | unit |  |  |  |  | 300 |  |  |  |  |  | 300 |  |
Sales Price |  |  |  |  | $ 26,150 |  |  |  |  |  | $ 26,150 |  |
Book Value and Sale Cost |  |  |  |  | $ 11,536 |  |  |  |  |  | 11,536 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | $ 14,614 |  |
MultiFamily Same-Store | Disposed of by Sale | Villa West - Topeka, Kansas |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of apartment homes | unit |  |  |  |  | 308 |  |  |  |  |  | 308 |  |
Sales Price |  |  |  |  | $ 22,950 |  |  |  |  |  | $ 22,950 |  |
Book Value and Sale Cost |  |  |  |  | $ 15,165 |  |  |  |  |  | 15,165 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | $ 7,785 |  |
MultiFamily Same-Store | Disposed of by Sale | Crestview - Bismarck, ND |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of apartment homes | unit |  |  |  |  | 152 |  |  |  |  |  | 152 |  |
Sales Price |  |  |  |  | $ 8,250 |  |  |  |  |  | $ 8,250 |  |
Book Value and Sale Cost |  |  |  |  | $ 2,681 |  |  |  |  |  | 2,681 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | $ 5,569 |  |
MultiFamily Same-Store | Disposed of by Sale | North Pointe - Bismarck, ND |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of apartment homes | unit |  |  |  |  | 73 |  |  |  |  |  | 73 |  |
Sales Price |  |  |  |  | $ 5,225 |  |  |  |  |  | $ 5,225 |  |
Book Value and Sale Cost |  |  |  |  | $ 3,179 |  |  |  |  |  | 3,179 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | $ 2,046 |  |
MultiFamily Same-Store | Disposed of by Sale | Kirkwood Manor - Bismarck, ND |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of apartment homes | unit |  |  |  |  | 108 |  |  |  |  |  | 108 |  |
Sales Price |  |  |  |  | $ 5,400 |  |  |  |  |  | $ 5,400 |  |
Book Value and Sale Cost |  |  |  |  | $ 2,518 |  |  |  |  |  | 2,518 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | $ 2,882 |  |
MultiFamily Same-Store | Disposed of by Sale | Westwood Park - Bismarck, ND |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of apartment homes | unit |  |  |  |  | 65 |  |  |  |  |  | 65 |  |
Sales Price |  |  |  |  | $ 4,250 |  |  |  |  |  | $ 4,250 |  |
Book Value and Sale Cost |  |  |  |  | $ 1,931 |  |  |  |  |  | 1,931 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | $ 2,319 |  |
MultiFamily Same-Store | Disposed of by Sale | Pebble Springs - Bismarck, ND |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of apartment homes | unit |  |  |  |  | 16 |  |  |  |  |  | 16 |  |
Sales Price |  |  |  |  | $ 875 |  |  |  |  |  | $ 875 |  |
Book Value and Sale Cost |  |  |  |  | $ 573 |  |  |  |  |  | 573 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | $ 302 |  |
MultiFamily Same-Store | Disposed of by Sale | Arbors - S Sioux City, NE |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of apartment homes | unit |  |  |  |  | 192 |  |  |  |  |  | 192 |  |
Sales Price |  |  |  |  | $ 16,200 |  |  |  |  |  | $ 16,200 |  |
Book Value and Sale Cost |  |  |  |  | $ 6,110 |  |  |  |  |  | 6,110 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | $ 10,090 |  |
MultiFamily Same-Store | Disposed of by Sale | Indian Hills - Sioux City, IA |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of apartment homes | unit |  |  |  |  | 120 |  |  |  |  |  | 120 |  |
Sales Price |  |  |  |  | $ 8,100 |  |  |  |  |  | $ 8,100 |  |
Book Value and Sale Cost |  |  |  |  | $ 5,302 |  |  |  |  |  | 5,302 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | $ 2,798 |  |
MultiFamily Same-Store | Disposed of by Sale | Ridge Oaks - Sioux City, IA |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of apartment homes | unit |  |  |  |  | 132 |  |  |  |  |  | 132 |  |
Sales Price |  |  |  |  | $ 7,700 |  |  |  |  |  | $ 7,700 |  |
Book Value and Sale Cost |  |  |  |  | $ 4,006 |  |  |  |  |  | 4,006 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | $ 3,694 |  |
MultiFamily Same-Store | Disposed of by Sale | Cottage West Twin Homes - Sioux Falls, SD |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of apartment homes | unit |  |  |  |  | 50 |  |  |  |  |  | 50 |  |
Sales Price |  |  |  |  | $ 6,991 |  |  |  |  |  | $ 6,991 |  |
Book Value and Sale Cost |  |  |  |  | $ 4,391 |  |  |  |  |  | 4,391 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | $ 2,600 |  |
MultiFamily Same-Store | Disposed of by Sale | Gables Townhomes - Sioux Falls, SD |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of apartment homes | unit |  |  |  |  | 24 |  |  |  |  |  | 24 |  |
Sales Price |  |  |  |  | $ 2,515 |  |  |  |  |  | $ 2,515 |  |
Book Value and Sale Cost |  |  |  |  | $ 2,052 |  |  |  |  |  | 2,052 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | $ 463 |  |
MultiFamily Same-Store | Disposed of by Sale | Oakmont Estates - Sioux Falls, SD |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of apartment homes | unit |  |  |  |  | 79 |  |  |  |  |  | 79 |  |
Sales Price |  |  |  |  | $ 7,010 |  |  |  |  |  | $ 7,010 |  |
Book Value and Sale Cost |  |  |  |  | $ 3,917 |  |  |  |  |  | 3,917 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | $ 3,093 |  |
MultiFamily Same-Store | Disposed of by Sale | Oakwood Estates - Sioux Falls, SD |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of apartment homes | unit |  |  |  |  | 160 |  |  |  |  |  | 160 |  |
Sales Price |  |  |  |  | $ 12,090 |  |  |  |  |  | $ 12,090 |  |
Book Value and Sale Cost |  |  |  |  | $ 3,056 |  |  |  |  |  | 3,056 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | $ 9,034 |  |
MultiFamily Same-Store | Disposed of by Sale | Oxbow Park - Sioux Falls, SD |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of apartment homes | unit |  |  |  |  | 120 |  |  |  |  |  | 120 |  |
Sales Price |  |  |  |  | $ 10,452 |  |  |  |  |  | $ 10,452 |  |
Book Value and Sale Cost |  |  |  |  | $ 2,713 |  |  |  |  |  | 2,713 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | $ 7,739 |  |
MultiFamily Same-Store | Disposed of by Sale | Prairie Winds - Sioux Falls, SD |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of apartment homes | unit |  |  |  |  | 48 |  |  |  |  |  | 48 |  |
Sales Price |  |  |  |  | $ 3,763 |  |  |  |  |  | $ 3,763 |  |
Book Value and Sale Cost |  |  |  |  | $ 1,112 |  |  |  |  |  | 1,112 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | $ 2,651 |  |
MultiFamily Same-Store | Disposed of by Sale | Sierra Vista - Sioux Falls, SD |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of apartment homes | unit |  |  |  |  | 44 |  |  |  |  |  | 44 |  |
Sales Price |  |  |  |  | $ 3,178 |  |  |  |  |  | $ 3,178 |  |
Book Value and Sale Cost |  |  |  |  | 2,292 |  |  |  |  |  | 2,292 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | 886 |  |
Unimproved Land | Disposed of by Sale |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of properties sold | property |  |  |  |  |  |  |  |  |  | 1 |  |  |
Sales Price |  |  |  |  | 4,374 |  |  |  |  |  | 4,374 |  |
Book Value and Sale Cost |  |  |  |  | 4,225 |  |  |  |  |  | 4,225 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | 149 |  |
Unimproved Land | Disposed of by Sale | Rapid City, South Dakota |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Sales Price | 1,300 |  |  |  |  |  |  |  |  | $ 1,300 |  |  |
Book Value and Sale Cost | 1,490 |  |  |  |  |  |  |  |  | 1,490 |  |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  | (190) |  |  |
Unimproved Land | Disposed of by Sale | Creekside Crossing - Bismarck, ND |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Sales Price |  |  |  |  | 3,049 |  |  |  |  |  | 3,049 |  |
Book Value and Sale Cost |  |  |  |  | 3,205 |  |  |  |  |  | 3,205 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | (156) |  |
Unimproved Land | Disposed of by Sale | Minot, North Dakota |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Sales Price |  |  |  |  | 725 |  |  |  |  |  | 725 |  |
Book Value and Sale Cost |  |  |  |  | 593 |  |  |  |  |  | 593 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | 132 |  |
Unimproved Land | Disposed of by Sale | Weston - Weston, Wisconsin |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Sales Price |  |  |  |  | 600 |  |  |  |  |  | 600 |  |
Book Value and Sale Cost |  |  |  |  | 427 |  |  |  |  |  | 427 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | 173 |  |
Other Property | Disposed of by Sale |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Sales Price | 12,295 |  |  |  |  |  |  |  |  | 12,295 |  |  |
Book Value and Sale Cost |  |  |  |  | 10,127 |  |  |  |  |  | 10,127 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | 2,168 |  |
Other Property | Disposed of by Sale | Dakota West |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Sales Price | 500 |  |  |  |  |  |  |  |  | 500 |  |  |
Book Value and Sale Cost | 474 |  |  |  |  |  |  |  |  | 474 |  |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  | 26 |  |  |
Other Property | Disposed of by Sale | Minot, North Dakota |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Sales Price |  |  |  |  | 6,530 |  |  |  |  |  | 6,530 |  |
Book Value and Sale Cost |  |  |  |  | 6,048 |  |  |  |  |  | 6,048 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | 482 |  |
Other Property | Disposed of by Sale | Woodbury 1865 Woodlane - Woodbury, MN |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Sales Price | $ 5,765 |  |  |  |  |  |  |  |  | $ 5,765 |  |  |
Book Value and Sale Cost |  |  |  |  | $ 4,079 |  |  |  |  |  | 4,079 |  |
Gain/(Loss) |  |  |  |  |  |  |  |  |  |  | $ 1,686 |  |

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