CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-In Capital	Treasury Stock.	Accumulated Deficit	Accumulated Other Comprehensive Loss	Total
Balance at beginning of period at Dec. 31, 2021	$ 430	$ 144,282	$ (57,166)	$ (36,196)	$ (1,343)	$ 50,007
Balance at beginning of period (in shares) at Dec. 31, 2021	43,024		(6,398)
Net loss attributable to common stockholders				(5,131)		(5,131)
Settlement of stock awards	$ 4		$ (295)			(291)
Settlement of stock awards (in shares)	364		(153)
Unrealized gain on pension liability					119	119
Stock-based compensation		169				169
Balance at ending of period at Mar. 31, 2022	$ 434	144,451	$ (57,461)	(41,327)	(1,224)	44,873
Balance at ending of period (in shares) at Mar. 31, 2022	43,388		(6,551)
Balance at beginning of period at Dec. 31, 2021	$ 430	144,282	$ (57,166)	(36,196)	(1,343)	50,007
Balance at beginning of period (in shares) at Dec. 31, 2021	43,024		(6,398)
Balance at ending of period at Dec. 31, 2022	$ 435	144,879	$ (57,461)	(56,886)	(3,626)	27,341
Balance at ending of period (in shares) at Dec. 31, 2022	43,448,000		(6,541,000)
Net loss attributable to common stockholders				(6,236)		(6,236)
Settlement of stock awards	$ 4		$ (149)			(145)
Settlement of stock awards (in shares)	455,000		(199,000)
Unrealized gain on pension liability					119	119
Stock-based compensation		101				101
Balance at ending of period at Mar. 31, 2023	$ 439	$ 144,980	$ (57,610)	$ (63,122)	$ (3,507)	$ 21,180
Balance at ending of period (in shares) at Mar. 31, 2023	43,903,000		(6,740,000)