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OPERATING SEGMENTS (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Segment Reporting Information [Line Items] |  |  |  |
Rental and other property revenues | $ 33,409 | $ 31,807 | $ 96,099 | $ 95,216
Property operating expenses | (15,945) | (15,403) | (45,919) | (47,098)
Interest income | 5,710 | 4,232 | 15,701 | 14,083
Gain on sale of income-producing properties |  | 12,760 |  | 12,760
Gain on land sales | 12,243 | 1,062 | 13,578 | 1,032
Segment operating (loss) income | 5,210 | 5,410 | 13,745 | 14,709
Real estate assets | 1,049,990 |  | 1,049,990 |
Commercial Properties [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Rental and other property revenues | 8,227 | 8,461 | 23,187 | 26,172
Property operating expenses | (4,236) | (4,485) | (12,222) | (14,324)
Depreciation | (2,523) | (2,345) | (7,138) | (7,045)
Mortgage and loan interest | (1,921) | (1,902) | (5,662) | (5,629)
Segment operating (loss) income | (453) | (271) | (1,835) | (826)
Capital expenditures | 962 | 691 | 3,688 | 2,623
Real estate assets | 134,142 | 147,377 | 134,142 | 147,377
Property Sales |  |  |  |
Sales price |  |  | 2,313 |
Cost of sale |  |  | (2,313) |
Apartments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Rental and other property revenues | 25,274 | 23,231 | 73,001 | 68,922
Property operating expenses | (11,345) | (10,659) | (33,127) | (31,616)
Depreciation | (4,364) | (4,028) | (12,709) | (12,105)
Mortgage and loan interest | (5,721) | (5,168) | (16,520) | (16,955)
Gain on sale of income-producing properties |  | 12,760 |  | 12,760
Segment operating (loss) income | 3,844 | 16,136 | 10,645 | 21,006
Capital expenditures | (114) | 543 | (2,398) | 543
Real estate assets | 823,619 | 663,636 | 823,619 | 663,636
Property Sales |  |  |  |
Sales price |  |  | 8,512 |
Cost of sale |  |  | (8,512) |
Recognized prior deferred gain |  | 12,760 |  | 12,760
Gain (loss) on sale |  | 12,760 |  | 12,760
Land [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Rental and other property revenues | (95) | 111 | (95) | 111
Property operating expenses | (158) | (127) | (291) | (575)
Mortgage and loan interest | (306) | (420) | (437) | (1,503)
Gain on land sales | 12,243 | 1,062 | 13,578 | 1,032
Segment operating (loss) income | 11,684 | 626 | 12,755 | (935)
Capital expenditures | (107) | 55 | (724) | 641
Real estate assets | 91,586 | 128,230 | 91,586 | 128,230
Property Sales |  |  |  |
Sales price | 35,519 | 850 | 38,503 | 2,446
Cost of sale | (23,276) | (320) | (24,925) | (1,946)
Recognized prior deferred gain |  | 532 |  | 532
Gain (loss) on sale | 12,243 | 1,062 | 13,578 | 1,032
Other [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Rental and other property revenues | 3 | 4 | 6 | 11
Property operating expenses | (206) | (132) | (279) | (583)
Depreciation | 14 |  | 79 | 37
Mortgage and loan interest | (9,474) | (8,227) | (26,434) | (25,772)
Interest income | 5,710 | 4,232 | 15,701 | 14,083
Segment operating (loss) income | (3,593) | (4,123) | (10,927) | (12,224)
Real estate assets | 643 |  | 643 |
Total Segment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Rental and other property revenues | 33,409 | 31,807 | 96,099 | 95,216
Property operating expenses | (15,945) | (15,403) | (45,919) | (47,098)
Depreciation | (6,873) | (6,373) | (19,768) | (19,113)
Mortgage and loan interest | (17,422) | (15,717) | (49,053) | (49,859)
Interest income | 5,710 | 4,232 | 15,701 | 14,083
Gain on sale of income-producing properties |  | 12,760 |  | 12,760
Gain on land sales | 12,243 | 1,062 | 13,578 | 1,032
Segment operating (loss) income | 11,122 | 12,368 | 10,638 | 7,021
Capital expenditures | 969 | 1,289 | 566 | 3,807
Real estate assets | 1,049,990 | 939,243 | 1,049,990 | 939,243
Property Sales |  |  |  |
Sales price | 35,519 | 850 | 38,503 | 2,446
Cost of sale | (23,276) | (320) | (24,925) | (1,946)
Recognized prior deferred gain |  | 13,292 |  | 13,292
Gain (loss) on sale | $ 12,243 | $ 13,822 | $ 13,578 | $ 13,792

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