CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net (loss) income attributable to common stockholders	$ (16,474)	$ 6,494	$ (2,179)
Adjustments to reconcile net loss (income) attributable to common stockholders to net cash used in operating activities:
Depreciation and amortization and amortization of deferred finance costs	3,998	2,970	2,977
Stock-based compensation expense	530	806	905
Gain on sale of school condominium	0	(24,196)	0
Gain on sale of residential condominiums, net	(321)	0	0
Gain on sale of real estate	0	0	(9,521)
Deferred rents receivable	(24)	(84)	578
Other non-cash adjustments - pension expense	816	1,015	1,992
Unrealized gain on warrants	(73)	(965)	0
Equity in net loss from unconsolidated joint ventures	555	1,571	819
Distribution from unconsolidated joint ventures	885	1,110	33
Decrease (increase) in operating assets:
Receivables	882	2,392	1,577
Prepaid expenses and other assets, net	(257)	190	278
Increase (decrease) in operating liabilities:
Accounts payable and accrued expenses	3,467	(686)	1,649
Pension liabilities	(1,288)	(1,033)	(2,705)
Net cash used in operating activities	(7,304)	(10,416)	(3,597)
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to real estate	(36,349)	(51,715)	(91,847)
Net proceeds from sale of real estate	22,275	0	18,812
Deferred real estate deposits of condominiums	0	1,971	33,609
Investments in unconsolidated joint ventures	0	(5,383)	0
Net cash used in investing activities	(14,074)	(55,127)	(39,426)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from loans and corporate credit facility	249,984	86,361	55,475
Proceeds from secured line of credit	8,200	5,000	7,250
Payment of finance costs	(6,552)	(1,497)	(1,531)
Repayment of loan	(225,547)	(23,368)	(10,557)
Repayment of secured line of credit	(3,200)	(2,500)	(2,000)
Settlement of stock awards	(370)	(695)	(772)
Stock buy-back	0	(359)	(197)
Sale of common stock, net	7,639	0	0
Net cash provided by financing activities	30,154	62,942	47,668
NET DECREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH	8,776	(2,601)	4,645
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF PERIOD	16,069	18,670	14,025
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD	24,845	16,069	18,670
CASH AND CASH EQUIVALENTS, BEGINNING PERIOD	6,515	9,196	11,496
RESTRICTED CASH, BEGINNING OF PERIOD	9,554	9,474	2,529
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF PERIOD	16,069	18,670	14,025
CASH AND CASH EQUIVALENTS, END OF PERIOD	4,310	6,515	9,196
RESTRICTED CASH, END OF PERIOD	20,535	9,554	9,474
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD	24,845	16,069	18,670
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid during the period for: Interest	16,042	15,495	12,631
Cash paid during the period for: Taxes	395	251	352
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES:
Accrued development costs included in accounts payable and accrued expenses	8,805	10,319	12,698
Capitalized amortization of deferred financing costs and warrants	3,580	2,727	2,737
Capitalized stock-based compensation expense	177	356	480
Loan forgiveness	243	0	0
Investment in unconsolidated joint venture	0	5,193	0
Right-of-use asset	0	0	(1,904)
Lease liabilities	0	0	(2,065)
Warrant liability	$ 0	$ 0	$ 1,795