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OPERATING SEGMENTS (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenue | $ 28,965 | $ 27,826 | $ 24,241 | $ 23,156 | $ 21,427 | $ 19,326 | $ 19,500 | $ 19,159 | $ 22,939 | $ 19,530 | $ 19,193 | $ 19,088 | $ 104,188 | $ 79,412 | $ 80,750
Operating expenses |  |  |  |  |  |  |  |  |  |  |  |  | (54,002) | (42,124) | (39,318)
Loan charges and prepayment penalties |  |  |  |  |  |  |  |  |  |  |  |  | (4,965) | (2,854) | (5,557)
Interest income |  |  |  |  |  |  |  |  |  |  |  |  | 16,674 | 20,054 | 19,445
Gain on land sales | 13,787 | 1,958 | 3,027 | 2,876 | (73) | 40 | (159) | 753 | (1,018) | 598 |  | (35) | 21,648 | 561 | (455)
Segment operating income (loss) | (1,631) | $ 2,085 | $ 3,853 | $ 2,001 | (3,455) | $ 468 | $ (414) | $ 202 | (16,938) | $ (541) | $ 553 | $ 1,250 | 6,308 | (3,199) | (15,676)
Assets | 853,507 |  |  |  | 699,763 |  |  |  |  |  |  |  | 853,507 | 699,763 |
Property Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of sale |  |  |  |  |  |  |  |  |  |  |  |  | (38,785) | (92,467) | (229,661)
Gain (loss) on sale |  |  |  |  |  |  |  |  |  |  |  |  | 735 | 61,879 | 98,951
Commercial Properties [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenue |  |  |  |  |  |  |  |  |  |  |  |  | 30,540 | 20,476 | 24,215
Operating expenses |  |  |  |  |  |  |  |  |  |  |  |  | (17,761) | (13,127) | (11,623)
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |  | (8,993) | (7,413) | (5,938)
Mortgage and loan interest |  |  |  |  |  |  |  |  |  |  |  |  | (6,919) | (6,026) | (5,865)
Loan charges and prepayment penalties |  |  |  |  |  |  |  |  |  |  |  |  |  | (113) | (150)
Segment operating income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | (3,133) | (6,203) | 639
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  | 8,133 | 4,874 | 6,964
Assets | 155,147 |  |  |  | 142,118 |  |  |  | 141,200 |  |  |  | 155,147 | 142,118 | 141,200
Property Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales price |  |  |  |  |  |  |  |  |  |  |  |  |  | 19,182 | 26,974
Cost of sale |  |  |  |  |  |  |  |  |  |  |  |  |  | (9,168) | (14,914)
Gain (loss) on sale |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,014 | 12,060
Apartments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenue |  |  |  |  |  |  |  |  |  |  |  |  | 73,543 | 58,882 | 56,369
Operating expenses |  |  |  |  |  |  |  |  |  |  |  |  | (34,955) | (27,588) | (26,223)
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |  | (12,498) | (10,270) | (10,188)
Mortgage and loan interest |  |  |  |  |  |  |  |  |  |  |  |  | (18,767) | (16,777) | (18,474)
Loan charges and prepayment penalties |  |  |  |  |  |  |  |  |  |  |  |  | (4,932) | (2,625) | (3,937)
Segment operating income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | 2,391 | 1,622 | (2,453)
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  | 506 | 320 | 315
Assets | 551,415 |  |  |  | 390,366 |  |  |  | 394,397 |  |  |  | 551,415 | 390,366 | 394,397
Property Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales price |  |  |  |  |  |  |  |  |  |  |  |  | 11,129 | 115,273 | 239,676
Cost of sale |  |  |  |  |  |  |  |  |  |  |  |  | (10,394) | (63,408) | (152,785)
Gain (loss) on sale |  |  |  |  |  |  |  |  |  |  |  |  | 735 | 51,865 | 86,891
Land [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenue |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 | 39
Operating expenses |  |  |  |  |  |  |  |  |  |  |  |  | (1,029) | $ (1,397) | (1,431)
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage and loan interest |  |  |  |  |  |  |  |  |  |  |  |  | (4,694) | $ (4,619) | (6,412)
Loan charges and prepayment penalties |  |  |  |  |  |  |  |  |  |  |  |  |  | (66) | (1,080)
Gain on land sales |  |  |  |  |  |  |  |  |  |  |  |  | 21,648 | 561 | (455)
Segment operating income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | 15,925 | (5,520) | (9,339)
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  | 2,621 | 2,436 | 387
Assets | 146,945 |  |  |  | 167,279 |  |  |  | 164,697 |  |  |  | 146,945 | 167,279 | 164,697
Property Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales price |  |  |  |  |  |  |  |  |  |  |  |  | 107,298 | 8,091 | 7,186
Cost of sale |  |  |  |  |  |  |  |  |  |  |  |  | (88,387) | (7,530) | (7,641)
Recognized prior deferred gain |  |  |  |  |  |  |  |  |  |  |  |  | 2,737 |  |
Gain (loss) on sale |  |  |  |  |  |  |  |  |  |  |  |  | 21,648 | 561 | (455)
Other [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenue |  |  |  |  |  |  |  |  |  |  |  |  | 105 | 53 | 127
Operating expenses |  |  |  |  |  |  |  |  |  |  |  |  | (257) | (12) | (41)
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |  | 73 | 90 | 172
Mortgage and loan interest |  |  |  |  |  |  |  |  |  |  |  |  | (17,132) | (10,550) | (8,359)
Loan charges and prepayment penalties |  |  |  |  |  |  |  |  |  |  |  |  | (33) | (50) | (390)
Interest income |  |  |  |  |  |  |  |  |  |  |  |  | 16,674 | 20,054 | 19,445
Segment operating income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | (570) | 9,585 | 10,954
Total Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenue |  |  |  |  |  |  |  |  |  |  |  |  | 104,188 | 79,412 | 80,750
Operating expenses |  |  |  |  |  |  |  |  |  |  |  |  | (54,002) | (42,124) | (39,318)
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |  | (21,418) | (17,593) | (15,954)
Mortgage and loan interest |  |  |  |  |  |  |  |  |  |  |  |  | (47,512) | (37,972) | (39,110)
Loan charges and prepayment penalties |  |  |  |  |  |  |  |  |  |  |  |  | (4,965) | (2,854) | (5,557)
Interest income |  |  |  |  |  |  |  |  |  |  |  |  | 16,674 | 20,054 | 19,445
Gain on land sales |  |  |  |  |  |  |  |  |  |  |  |  | 21,648 | 561 | (455)
Segment operating income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | 14,613 | (516) | (199)
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  | 11,260 | 7,630 | 7,666
Assets | $ 853,507 |  |  |  | $ 699,763 |  |  |  | $ 700,294 |  |  |  | 853,507 | 699,763 | 700,294
Property Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales price |  |  |  |  |  |  |  |  |  |  |  |  | 118,427 | 142,546 | 273,836
Cost of sale |  |  |  |  |  |  |  |  |  |  |  |  | (98,781) | (80,106) | (175,340)
Recognized prior deferred gain |  |  |  |  |  |  |  |  |  |  |  |  | 2,737 |  |
Gain (loss) on sale |  |  |  |  |  |  |  |  |  |  |  |  | $ 22,383 | $ 62,440 | $ 98,496

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