Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Cash Flows [Abstract]
Net loss	$ (2,962)	$ (13,615)	$ (4,490)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation		10,339	8,168
Cost of real estate sold		10,692	5,321
Gain on sale of assets	(37)	0	(1,989)
(Gain) loss on interest rate derivative instruments	9	(3)	191
Loss on early extinguishment of debt	(231)	0	(247)
Amortization of debt issuance costs and stock-based compensation		1,601	1,042
Equity in unconsolidated affiliates' loss	(7)	(9)	(20)
Increase in deposits		93	645
Deferred income taxes		12,277	(553)
Purchases and development of real estate properties		(11,607)	(8,866)
Municipal utility district reimbursements applied to real estate under development	900	0	920
Increase in other assets		(2,971)	(3,529)
Decrease in accounts payable, accrued liabilities and other		(6,356)	(1,120)
Net cash provided by (used in) operating activities		459	(3,993)
Cash flow from investing activities:
Capital expenditures		(5,328)	(51,167)
Proceeds from sale of assets		0	3,170
Payments on master lease obligations		(1,093)	(1,216)
Purchase of noncontrolling interest in consolidated subsidiary		0	(4,589)
Other, net		(9)	(10)
Net cash used in investing activities		(6,430)	(53,812)
Cash flow from financing activities:
Borrowings from credit facility		18,800	19,186
Payments on credit facility		(25,975)	(18,109)
Borrowings from project loans		15,690	133,278
Payments on project and term loans		(7,584)	(64,118)
Stock-based awards net payments		(79)	(265)
Financing costs		(423)	(1,342)
Net cash provided by financing activities		429	68,630
Net (decrease) increase in cash, cash equivalents and restricted cash		(5,542)	10,825
Cash, cash equivalents and restricted cash at beginning of year		38,591	38,919
Cash, cash equivalents and restricted cash at end of period	$ 49,744	$ 33,049	$ 49,744