Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Shares [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Deficit [Member]
Beginning balance at Dec. 31, 2019	$ 166,682	$ 21,785	$ 296,363	$ (16,349)	$ (135,117)
Stockholders' Equity [Roll Forward]
Net income	16,726	0	0	0	16,726
Foreign currency translation adjustment	(2,755)	0	0	(2,755)	0
Shares issued under incentive plans, net of shares withheld for tax	(237)	43	(280)	0	0
Stock compensation expense	653	0	653	0	0
Declared dividends	(4,846)	0	0	0	(4,846)
Ending balance at Mar. 31, 2020	176,223	21,828	296,736	(19,104)	(123,237)
Beginning balance at Dec. 31, 2020	189,100	21,939	300,852	(15,773)	(117,918)
Stockholders' Equity [Roll Forward]
Net income	7,305	0	0	0	7,305
Foreign currency translation adjustment	411	0	0	411	0
Shares issued under incentive plans, net of shares withheld for tax	1,237	115	1,122	0	0
Stock compensation expense	1,153	0	1,153	0	0
Declared dividends	(4,953)	0	0	0	(4,953)
Ending balance at Mar. 31, 2021	$ 194,253	$ 22,054	$ 303,127	$ (15,362)	$ (115,566)