Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands | Convertible Stock [Member] | Common Stock [Member] | Additional Paid-in Capital [Member] | AOCI Attributable to Parent [Member] | Retained Earnings [Member] | Noncontrolling Interest [Member] | Total |
Beginning balance, value at Dec. 31, 2019 | | $ 2 | $ 204,912 | $ 111 | $ (102,404) | $ 478 | $ 103,099 |
Beginning balance, shares at Dec. 31, 2019 | 1 | 22,223 | | | | | |
Net income | | | | | 2,698 | 1,232 | 3,930 |
Distributions paid to noncontrolling interests | | | | | | (3,277) | (3,277) |
Tender of common stock | | | (15,601) | | | | (15,601) |
Tender of common stock, Shares | | (2,003) | | | | | |
Holding loss on marketable securities, available for sale | | | | 100 | | | 100 |
Reclassification adjustment for loss on sale of marketable securities included in net income | | | | (52) | | | (52) |
Ending balance, value at Jun. 30, 2020 | | $ 2 | 189,311 | 159 | (99,706) | (1,567) | 88,199 |
Ending balance, shares at Jun. 30, 2020 | 1 | 20,220 | | | | | |
Beginning balance, value at Mar. 31, 2020 | | $ 2 | 204,841 | 77 | (98,423) | (151) | 106,346 |
Beginning balance, shares at Mar. 31, 2020 | 1 | 22,223 | | | | | |
Net income | | | | | (1,283) | 21 | (1,262) |
Distributions paid to noncontrolling interests | | | | | | (1,437) | (1,437) |
Tender of common stock | | | (15,530) | | | | (15,530) |
Tender of common stock, Shares | | (2,003) | | | | | |
Holding loss on marketable securities, available for sale | | | | 128 | | | 128 |
Reclassification adjustment for loss on sale of marketable securities included in net income | | | | (46) | | | (46) |
Ending balance, value at Jun. 30, 2020 | | $ 2 | 189,311 | 159 | (99,706) | (1,567) | 88,199 |
Ending balance, shares at Jun. 30, 2020 | 1 | 20,220 | | | | | |
Beginning balance, value at Dec. 31, 2020 | | $ 2 | 189,216 | 140 | (102,519) | (2,199) | 84,640 |
Beginning balance, shares at Dec. 31, 2020 | 1 | 20,193 | | | | | |
Net income | | | | | 27,480 | 131 | 27,611 |
Distributions paid to noncontrolling interests | | | | | | (343) | (343) |
Acquisition of noncontrolling interest in a subsidiary | | | (2,128) | | | 1,042 | (1,086) |
Holding loss on marketable securities, available for sale | | | | (48) | | | (48) |
Reclassification adjustment for loss on sale of marketable securities included in net income | | | | (7) | | | (7) |
Ending balance, value at Jun. 30, 2021 | | $ 2 | 187,088 | 85 | (75,039) | (1,369) | 110,767 |
Ending balance, shares at Jun. 30, 2021 | 1 | 20,193 | | | | | |
Beginning balance, value at Mar. 31, 2021 | | $ 2 | 187,088 | 90 | (75,484) | (1,324) | 110,372 |
Beginning balance, shares at Mar. 31, 2021 | 1 | 20,193 | | | | | |
Net income | | | | | 445 | 54 | 499 |
Distributions paid to noncontrolling interests | | | | | | (99) | (99) |
Holding loss on marketable securities, available for sale | | | | (6) | | | (6) |
Reclassification adjustment for loss on sale of marketable securities included in net income | | | | 1 | | | 1 |
Ending balance, value at Jun. 30, 2021 | | $ 2 | $ 187,088 | $ 85 | $ (75,039) | $ (1,369) | $ 110,767 |
Ending balance, shares at Jun. 30, 2021 | 1 | 20,193 | | | | | |