CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash Flow From Operating Activities:
Net income (loss)	$ (15,316)	$ 322	$ (7,504)
Adjustments to reconcile net income (loss) applicable to common shares to net cash provided by (used in) operating activities:
(Gain) loss on sale of land	(4,884)	(3,121)	(18,911)
Gain on sale of income producing properties	(9,842)	(16,207)	(735)
Depreciation and amortization	25,558	23,683	21,299
Provision on impairment of notes receivable and real estate assets			5,300
Amortization of deferred borrowing costs	3,574	4,314	2,684
Amortization of Series A bonds issuance costs	971
Earnings from unconsolidated subsidiaries and investees	(26)	(26)	(132)
(Increase) decrease in assets:
Accrued interest receivable	(668)	(922)	586
Other assets	(1,433)	(2,388)	4,204
Prepaid expense	(5,661)	(9,238)	(13,615)
Escrow	(8,584)	7,584	2,684
Earnest money	856	(571)	(905)
Rent receivables	543	2,840	2,104
Related party receivables	(9,972)	(11,134)	(40,153)
Increase (decrease) in liabilities:
Accrued interest payable	4,573	20	(710)
Other liabilities	(12,173)	12,882	(7,115)
Net cash provided by (used in) operating activities	(32,484)	8,038	(50,919)
Cash Flow From Investing Activities:
Proceeds from notes receivables	26,230	2,867	10,669
Originations of notes receivables	(16,420)	(11,703)	(18,055)
Acquisition of land held for development		(12,508)
Acquisition of income producing properties	(37,044)	(79,736)	(207,313)
Proceeds from sales of income producing properties		21,850
Proceeds from sale of land	6,301	29,128	107,299
Investment in unconsolidated real estate entities		2,797	(596)
Improvement of land held for development		(3,023)	(6,158)
Improvement of income producing properties	(64,443)	(5,702)	(8,952)
Construction and development of new properties	(12,936)	(10,836)	(16,717)
Net cash provided by (used in) investing activities	(98,312)	(66,866)	(139,823)
Cash Flow From Financing Activities:
Proceeds from Series A bonds payable	115,335
Proceeds from notes payable	135,116	242,215	403,309
Recurring amortization of principal on notes payable	(83,070)	(20,205)	(15,545)
Payments on maturing notes payable		(160,745)	(186,128)
Deferred financing costs	(3,599)	798	(7,035)
Distributions to non-controlling interests			11
Bond issuance costs	(6,887)
Preferred stock dividends - Series D	(900)	(900)	(900)
Net cash provided by (used in) financing activities	155,995	61,163	193,712
Net increase (decrease) in cash and cash equivalents	25,199	2,335	2,970
Cash and cash equivalents, beginning of period	17,506	15,171	12,201
Cash and cash equivalents, end of period	42,705	17,506	15,171
Supplemental disclosures of cash flow information:
Cash paid for interest	$ 49,870	$ 43,986	$ 38,787