Restatement and Revision of Previously Issued Consolidated Financial Statements - Balance Sheet (Details) - USD ($) $ in Thousands		Mar. 31, 2022		Dec. 31, 2021		Mar. 31, 2021	Dec. 31, 2020
ASSETS
Real estate, net		$ 66,705	[1]	$ 67,334	[1]	$ 69,353
Residential condominiums for sale		214,591	[1]	216,983	[1]	213,223
Cash and cash equivalents	[1]	1,381		4,310		5,034	$ 6,515
Restricted cash	[1]	14,232		20,535		6,694	9,554
Prepaid expenses and other assets, net		5,007	[1]	4,126	[1]	3,343
Investments in unconsolidated joint ventures		18,517	[1]	17,938	[1]	18,814
Receivables		60	[1]	84	[1]	919
Deferred rents receivable		118	[1]	114	[1]	102
Right-of-use asset		1,224	[1]	1,314	[1]	1,478
Intangible assets, net		8,247	[1]	8,432	[1]	8,987
Total assets		330,082	[1]	341,170	[1]	327,947
LIABILITIES
Loans payable, net		210,768	[1]	219,249	[1]	207,317
Corporate credit facility, net		33,090	[1]	32,844	[1]	32,104
Secured line of credit, net		12,750	[1]	12,750	[1]	8,950
Note payable		5,863	[1]	5,863	[1]	5,863
Accounts payable and accrued expenses		19,876	[1]	17,864	[1]	14,368
Lease liability		1,347	[1]	1,447	[1]	1,626
Warrant liability		1,515	[1]	1,146	[1]	3,196
Total liabilities		285,209	[1]	291,163	[1]	273,424
Commitments and Contingencies			[1]		[1]
STOCKHOLDERS' EQUITY
Special stock	[1]
Common stock		434	[1]	430	[1]	388
Additional paid-in capital		144,451	[1]	144,282	[1]	(136,151)
Treasury stock		(57,461)	[1]	(57,166)	[1]	(57,166)
Accumulated other comprehensive loss		(1,224)	[1]	(1,343)	[1]	(2,040)
Accumulated deficit		(41,327)	[1]	(36,196)	[1]	(22,810)
Total stockholders' equity		44,873	[1]	50,007	[1]	54,523	62,020
Total liabilities and stockholders' equity		330,082	[1]	341,170	[1]	327,947
Blank Check Preferred Stock
STOCKHOLDERS' EQUITY
Preferred stock, value	[1]
Preferred Stock
STOCKHOLDERS' EQUITY
Preferred stock, value	[1]
Previously Reported
ASSETS
Real estate, net		294,108				289,294
Cash and cash equivalents		1,381		4,310		5,034	6,515
Restricted cash		14,232		20,535		6,694	9,554
Prepaid expenses and other assets, net		5,007				3,343
Investments in unconsolidated joint ventures		18,517				18,814
Receivables		60				919
Deferred rents receivable		118				102
Right-of-use asset		1,224				1,478
Intangible assets, net		8,247				8,987
Total assets		342,894				334,665
LIABILITIES
Loans payable, net		210,768				207,317
Corporate credit facility, net		33,090				32,104
Secured line of credit, net		12,750				8,950
Note payable		5,863				5,863
Accounts payable and accrued expenses		19,876				14,368
Lease liability		1,347				1,626
Warrant liability		1,515				3,196
Total liabilities		285,209				273,424
Commitments and Contingencies
STOCKHOLDERS' EQUITY
Common stock		434				388
Additional paid-in capital		144,451				(136,151)
Treasury stock		(57,461)				(57,166)
Accumulated other comprehensive loss		(1,224)				(2,040)
Accumulated deficit		(28,515)				(16,092)
Total stockholders' equity		57,685		60,226		61,241	67,908
Total liabilities and stockholders' equity		342,894				334,665
Error Related to Classification of Real Estate Under Development | Revision/Restatement Impact
ASSETS
Real estate, net		(227,403)				(219,941)
Residential condominiums for sale		214,591				213,223
Total assets		(12,812)				(6,718)
LIABILITIES
Commitments and Contingencies
STOCKHOLDERS' EQUITY
Accumulated deficit		(12,812)				(6,718)
Total stockholders' equity		(12,812)		$ (10,219)		(6,718)	$ (5,888)
Total liabilities and stockholders' equity		$ (12,812)				$ (6,718)

[1] Amounts are Restated. See Note 3 for more information.