CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ 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, 2020	$ 383	$ 135,978	$ (56,791)	$ (15,391)	$ (2,159)	$ 62,020
Balance at beginning of period (in shares) at Dec. 31, 2020	38,345		(6,173)
Net loss attributable to common stockholders				(17,461)		(17,461)
Settlement of stock awards	$ 5		$ (375)			(370)
Settlement of stock awards (in shares)	521		(225)
Unrealized gain on pension liability					356	356
Sale of common stock	$ 2	165				167
Sale of common stock (in shares)	150
Stock-based compensation		529				529
Balance at Sep. 30, 2021	$ 390	136,672	$ (57,166)	(32,852)	(1,803)	45,241
Balance (in shares) at Sep. 30, 2021	39,016		(6,398)
Balance at beginning of period at Dec. 31, 2020	$ 383	135,978	$ (56,791)	(15,391)	(2,159)	62,020
Balance at beginning of period (in shares) at Dec. 31, 2020	38,345		(6,173)
Balance at Dec. 31, 2021	$ 430	144,282	$ (57,166)	(36,196)	(1,343)	50,007
Balance (in shares) at Dec. 31, 2021	43,024		(6,398)
Balance at beginning of period at Jun. 30, 2021	$ 389	136,329	$ (57,166)	(29,244)	(1,922)	48,386
Balance at beginning of period (in shares) at Jun. 30, 2021	38,853		(6,398)
Net loss attributable to common stockholders				(3,608)		(3,608)
Settlement of stock awards (in shares)	13
Unrealized gain on pension liability					119	119
Sale of common stock	$ 1	165				166
Sale of common stock (in shares)	150
Stock-based compensation		178				178
Balance at Sep. 30, 2021	$ 390	136,672	$ (57,166)	(32,852)	(1,803)	45,241
Balance (in shares) at Sep. 30, 2021	39,016		(6,398)
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				(11,707)		(11,707)
Settlement of stock awards	$ 4		$ (295)			(291)
Settlement of stock awards (in shares)	394		(143)
Unrealized gain on pension liability					356	356
Stock-based compensation		443				443
Balance at Sep. 30, 2022	$ 434	144,725	$ (57,461)	(47,903)	(987)	38,808
Balance (in shares) at Sep. 30, 2022	43,418		(6,541)
Balance at beginning of period at Jun. 30, 2022	$ 434	144,580	$ (57,461)	(41,550)	(1,106)	44,897
Balance at beginning of period (in shares) at Jun. 30, 2022	43,391		(6,541)
Net loss attributable to common stockholders				(6,353)		(6,353)
Settlement of stock awards (in shares)	27
Unrealized gain on pension liability					119	119
Stock-based compensation		145				145
Balance at Sep. 30, 2022	$ 434	$ 144,725	$ (57,461)	$ (47,903)	$ (987)	$ 38,808
Balance (in shares) at Sep. 30, 2022	43,418		(6,541)