Restatement and Revision of Previously Issued Consolidated Financial Statements - Equity Statement (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended				12 Months Ended
	Mar. 31, 2022		Mar. 31, 2021		Dec. 31, 2021
Revision of Previously Issued Consolidated Financial Statements
Balance	$ 50,007	[1]	$ 62,020		$ 62,020
Net income (loss) attributable to common stockholders	(5,131)	[1]	(7,419)	[2]
Settlement of stock awards	(291)		(370)
Unrealized gain (loss) on pension liability	119		119
Stock-based compensation expense	169		173
Balance	44,873	[1]	54,523		50,007	[1]
Common Stock
Revision of Previously Issued Consolidated Financial Statements
Balance	$ 430	[1]	$ 383		$ 383
Balance (in shares)	43,024	[1]	38,345		38,345
Settlement of stock awards	$ 4		$ 5
Settlement of stock awards (in shares)	364		496
Balance	$ 434	[1]	$ 388		$ 430	[1]
Balance (in shares)	43,388	[1]	38,841		43,024	[1]
Additional Paid-In Capital
Revision of Previously Issued Consolidated Financial Statements
Balance	$ 144,282	[1]	$ 135,978		$ 135,978
Stock-based compensation expense	169		173
Balance	144,451	[1]	136,151		144,282	[1]
Treasury Stock
Revision of Previously Issued Consolidated Financial Statements
Balance	$ (57,166)	[1]	$ (56,791)		$ (56,791)
Balance (in shares)	(6,398)	[1]	(6,173)		(6,173)
Settlement of stock awards	$ (295)		$ (375)
Settlement of stock awards (in shares)	(153)		(225)
Balance	$ (57,461)	[1]	$ (57,166)		$ (57,166)	[1]
Balance (in shares)	(6,551)	[1]	(6,398)		(6,398)	[1]
Accumulated Deficit
Revision of Previously Issued Consolidated Financial Statements
Balance	$ (36,196)	[1]	$ (15,391)		$ (15,391)
Net income (loss) attributable to common stockholders	(5,131)		(7,419)
Balance	(41,327)	[1]	(22,810)		(36,196)	[1]
Accumulated Other Comprehensive Loss
Revision of Previously Issued Consolidated Financial Statements
Balance	(1,343)	[1]	(2,159)		(2,159)
Unrealized gain (loss) on pension liability	119		119
Balance	(1,224)	[1]	(2,040)		(1,343)	[1]
Previously Reported
Revision of Previously Issued Consolidated Financial Statements
Balance	60,226		67,908		67,908
Net income (loss) attributable to common stockholders	(2,538)		(6,589)
Settlement of stock awards	(291)		(370)
Unrealized gain (loss) on pension liability	119		119
Stock-based compensation expense	169		173
Balance	57,685		61,241		60,226
Previously Reported | Common Stock
Revision of Previously Issued Consolidated Financial Statements
Balance	$ 430		$ 383		$ 383
Balance (in shares)	43,024		38,345		38,345
Settlement of stock awards	$ 4		$ 5
Settlement of stock awards (in shares)	364		496
Balance	$ 434		$ 388		$ 430
Balance (in shares)	43,388		38,841		43,024
Previously Reported | Additional Paid-In Capital
Revision of Previously Issued Consolidated Financial Statements
Balance	$ 144,282		$ 135,978		$ 135,978
Stock-based compensation expense	169		173
Balance	144,451		136,151		144,282
Previously Reported | Treasury Stock
Revision of Previously Issued Consolidated Financial Statements
Balance	$ (57,166)		$ (56,791)		$ (56,791)
Balance (in shares)	(6,398)		(6,173)		(6,173)
Settlement of stock awards	$ (295)		$ (375)
Settlement of stock awards (in shares)	(153)		(225)
Balance	$ (57,461)		$ (57,166)		$ (57,166)
Balance (in shares)	(6,551)		(6,398)		(6,398)
Previously Reported | Accumulated Deficit
Revision of Previously Issued Consolidated Financial Statements
Balance	$ (25,977)		$ (9,503)		$ (9,503)
Net income (loss) attributable to common stockholders	(2,538)		(6,589)
Balance	(28,515)		(16,092)		(25,977)
Previously Reported | Accumulated Other Comprehensive Loss
Revision of Previously Issued Consolidated Financial Statements
Balance	(1,343)		(2,159)		(2,159)
Unrealized gain (loss) on pension liability	119		119
Balance	(1,224)		(2,040)		(1,343)
Error Related to Classification of Real Estate Under Development | Revision/Restatement Impact
Revision of Previously Issued Consolidated Financial Statements
Balance	(10,219)		(5,888)		(5,888)
Net income (loss) attributable to common stockholders	(2,593)		(830)
Balance	(12,812)		(6,718)		(10,219)
Error Related to Classification of Real Estate Under Development | Revision/Restatement Impact | Accumulated Deficit
Revision of Previously Issued Consolidated Financial Statements
Balance	(10,219)		(5,888)		(5,888)
Net income (loss) attributable to common stockholders	(2,593)		(830)
Balance	$ (12,812)		$ (6,718)		$ (10,219)

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

[2] Amounts are Revised. See Note 3 for more information.