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, 2020	$ 189,100	$ 21,939	$ 300,852	$ (15,773)	$ (117,918)
Stockholders' Equity [Roll Forward]
Net income	26,283	0	0	0	26,283
Foreign currency translation adjustment	7	0	0	7	0
Shares issued under incentive plans, net of shares withheld for tax	2,383	211	2,172	0	0
Stock compensation expense	2,601	0	2,601	0	0
Declared dividends	(14,849)	0	0	0	(14,849)
Ending balance at Sep. 30, 2021	205,525	22,150	305,625	(15,766)	(106,484)
Beginning balance at Jun. 30, 2021	201,981	22,109	304,183	(14,892)	(109,419)
Stockholders' Equity [Roll Forward]
Net income	7,903	0	0	0	7,903
Foreign currency translation adjustment	(874)	0	0	(874)	0
Shares issued under incentive plans, net of shares withheld for tax	711	41	670	0	0
Stock compensation expense	772	0	772	0	0
Declared dividends	(4,968)	0	0	0	(4,968)
Ending balance at Sep. 30, 2021	205,525	22,150	305,625	(15,766)	(106,484)
Beginning balance at Dec. 31, 2021	209,325	22,172	306,720	(15,401)	(104,166)
Stockholders' Equity [Roll Forward]
Net income	46,839	0	0	0	46,839
Foreign currency translation adjustment	(2,985)	0	0	(2,985)	0
Shares issued under incentive plans, net of shares withheld for tax	1,609	149	1,460	0	0
Stock compensation expense	5,168	0	5,168	0	0
Declared dividends	(14,979)	0	0	0	(14,979)
Ending balance at Sep. 30, 2022	244,977	22,321	313,348	(18,386)	(72,306)
Beginning balance at Jun. 30, 2022	237,258	22,304	311,939	(16,010)	(80,975)
Stockholders' Equity [Roll Forward]
Net income	13,671	0	0	0	13,671
Foreign currency translation adjustment	(2,376)	0	0	(2,376)	0
Shares issued under incentive plans, net of shares withheld for tax	118	17	101	0	0
Stock compensation expense	1,308	0	1,308	0	0
Declared dividends	(5,002)	0	0	0	(5,002)
Ending balance at Sep. 30, 2022	$ 244,977	$ 22,321	$ 313,348	$ (18,386)	$ (72,306)