Consolidated Statements of Changes in Equity - USD ($) $ in Thousands	Total	Common Shares [Member]	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Shares	Non-Controlling Interest	Common Stock Outstanding
Balance at Beginning of Period at Dec. 31, 2021	$ 161,001	$ 1,188	$ 101,120	$ 68,349	$ (10,133)	$ (4,075)	$ 4,552
Balance at Beginning of Period at Dec. 31, 2021		46,454,264				(104,866)		46,349,397
Stock-based compensation	6,227		5,968			$ 259
Stock-based compensation (shares)						9,299		9,299
Repurchase of common shares	(1,920)					$ (1,920)
Repurchase of common shares (shares)						(75,020)		(75,020)
Dividends paid	(463)			(463)
Interest rate swaps, net of income taxes	3,380				3,380
Net income (loss)	(1,839)			(1,888)			49
Balance at End of Period at Mar. 31, 2022	$ 166,386	$ 1,188	107,088	65,998	(6,753)	$ (5,736)	4,601
Balance at End of Period at Mar. 31, 2022		46,454,264				(170,587)		46,283,676
Cash Dividends per Share	$ 0.01
Balance at Beginning of Period at Dec. 31, 2022	$ 188,954	$ 1,194	102,254	85,949	(3,777)	$ (1,362)	4,696
Balance at Beginning of Period at Dec. 31, 2022		46,699,102				(67,168)		46,631,934
Stock-based compensation	8,984		8,981			$ 3
Stock-based compensation (shares)						150		150
Repurchase of common shares	(1)					$ (1)
Repurchase of common shares (shares)						(57)		(57)
Dividends paid	(467)			(467)
Pension and other postretirement benefit plans, net of income taxes	29				29
New share issuance	0	$ 0	0
New share issuance (shares)		2,000						2,000
Interest rate swaps, net of income taxes	210				210
Net income (loss)	2,442			2,373			69
Balance at End of Period at Mar. 31, 2023	$ 200,151	$ 1,194	$ 111,235	$ 87,855	$ (3,538)	$ (1,360)	$ 4,765
Balance at End of Period at Mar. 31, 2023		46,701,102				(67,075)		46,634,027
Cash Dividends per Share	$ 0.01