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OPERATING SEGMENTS (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Segment Reporting Information [Line Items] |  |  |  |
Rental and other property revenues | $ 30,067 | $ 27,826 | $ 90,106 | $ 75,223
Property operating expenses | (15,671) | (14,499) | (46,078) | (37,467)
Interest income | 5,712 | 3,950 | 15,791 | 13,722
Gain on sale of income producing properties |  | 735 | 4,925 | 735
Gain on land sales | 555 | 1,958 | 3,925 | 7,861
Segment operating income (loss) | 3,795 | 2,085 | 11,741 | 7,939
Real estate assets | 909,709 |  | 909,709 |
Commercial Properties [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Rental and other property revenues | 7,658 | 8,107 | 24,496 | 22,172
Property operating expenses | (4,727) | (4,434) | (14,658) | (12,042)
Depreciation | (2,236) | (2,358) | (6,820) | (6,516)
Mortgage and loan interest | (1,700) | (1,871) | (5,371) | (5,129)
Gain on sale of income producing properties |  |  | 6 |
Segment operating income (loss) | (1,005) | (556) | (2,347) | (1,515)
Capital expenditures | 2,045 | 1,404 | 4,125 | 7,539
Real estate assets | 151,900 | 161,876 | 151,900 | 161,876
Property Sales |  |  |  |
Sales price |  |  | 1,500 |
Cost of sale |  |  | (1,743) |
Gain (loss) on sale |  |  | (243) |
Apartments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Rental and other property revenues | 22,408 | 19,671 | 65,578 | 52,948
Property operating expenses | (10,693) | (9,373) | (30,255) | (24,243)
Depreciation | (3,807) | (4,229) | (10,958) | (9,949)
Mortgage and loan interest | (6,424) | (6,299) | (18,689) | (15,857)
Gain on sale of income producing properties |  | 735 | 4,919 | 735
Segment operating income (loss) | 1,484 | 505 | 10,595 | 3,634
Capital expenditures |  | (43) | (146) | 438
Real estate assets | 613,431 | 496,329 | 613,431 | 496,329
Property Sales |  |  |  |
Sales price |  | 11,129 | 8,100 | 11,129
Cost of sale |  | (10,394) | (2,932) | (10,394)
Gain (loss) on sale |  | 735 | 5,168 | 735
Land [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Rental and other property revenues |  |  | 30 |
Property operating expenses | (243) | (422) | (1,159) | (936)
Mortgage and loan interest | (550) | (1,345) | (1,703) | (3,766)
Gain on land sales | 555 | 1,958 | 3,925 | 7,861
Segment operating income (loss) | (238) | 191 | 1,093 | 3,159
Capital expenditures | 375 | 1,461 | 1,873 | 2,772
Real estate assets | 144,378 | 163,867 | 144,378 | 163,867
Property Sales |  |  |  |
Sales price | 805 | 2,851 | 8,139 | 11,987
Cost of sale | (250) | (1,854) | (4,214) | (6,863)
Recognized prior deferred gain |  | 961 |  | 2,737
Gain (loss) on sale | 555 | 1,958 | 3,925 | 7,861
Other [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Rental and other property revenues | 1 | 48 | 2 | 103
Property operating expenses | (8) | (270) | (6) | (246)
Depreciation | 18 | 18 | 55 | 55
Mortgage and loan interest | (6,688) | (5,511) | (17,788) | (11,711)
Interest income | 5,712 | 3,950 | 15,791 | 13,722
Segment operating income (loss) | (965) | (1,765) | (1,946) | 1,923
Total Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Rental and other property revenues | 30,067 | 27,826 | 90,106 | 75,223
Property operating expenses | (15,671) | (14,499) | (46,078) | (37,467)
Depreciation | (6,025) | (6,569) | (17,723) | (16,410)
Mortgage and loan interest | (15,362) | (15,026) | (43,551) | (36,463)
Interest income | 5,712 | 3,950 | 15,791 | 13,722
Gain on sale of income producing properties |  | 735 | 4,925 | 735
Gain on land sales | 555 | 1,958 | 3,925 | 7,861
Segment operating income (loss) | (724) | (1,625) | 7,395 | 7,201
Capital expenditures | 2,420 | 2,822 | 5,852 | 10,749
Real estate assets | 909,709 | 822,072 | 909,709 | 822,072
Property Sales |  |  |  |
Sales price | 805 | 13,980 | 17,739 | 23,116
Cost of sale | (250) | (12,248) | (8,889) | (17,257)
Recognized prior deferred gain |  | 961 |  | 2,737
Gain (loss) on sale | $ 555 | $ 2,693 | $ 8,850 | $ 8,596

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