Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Stock Outstanding [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]	Total
Balance (in shares) at Dec. 31, 2020	7,500				30
Balance at Dec. 31, 2020	$ 75	$ 32,484	$ 144,921	$ 0	$ (587)	$ 176,893
Share-based compensation (in shares)	34				0
Share-based compensation	$ 0	501	0	0	$ 0	501
Net share settlement of RSUs (in shares)	(14)				0
Net share settlement of RSUs	$ 0	(738)	0	0	$ 0	(738)
Other comprehensive income	0	0	0	0	0	0
Net income	0	0	4,163		0	4,163
Other comprehensive income	$ 0	0	0	0	$ 0	0
Balance (in shares) at Mar. 31, 2021	7,520				30
Balance at Mar. 31, 2021	$ 75	32,247	149,084	0	$ (587)	180,819
Balance (in shares) at Dec. 31, 2020	7,500				30
Balance at Dec. 31, 2020	$ 75	32,484	144,921	0	$ (587)	176,893
Other comprehensive income						0
Net income						12,667
Other comprehensive income						0
Balance (in shares) at Sep. 30, 2021	7,531				30
Balance at Sep. 30, 2021	$ 75	33,677	157,588	0	$ (587)	190,753
Balance (in shares) at Mar. 31, 2021	7,520				30
Balance at Mar. 31, 2021	$ 75	32,247	149,084	0	$ (587)	180,819
Share-based compensation (in shares)	4				0
Share-based compensation	$ 0	620	0	0	$ 0	620
Net share settlement of RSUs	0	(2)	0	0	0	(2)
Other comprehensive income	0	0	0	0	0	0
Net income	$ 0	0	4,715	0	$ 0	4,715
Exercise of stock options (in shares)	7				0
Exercise of stock options	$ 0	162	0	0	$ 0	162
Other comprehensive income	$ 0	0	0	0	$ 0	0
Balance (in shares) at Jun. 30, 2021	7,531				30
Balance at Jun. 30, 2021	$ 75	33,027	153,799	0	$ (587)	186,314
Share-based compensation (in shares)	0
Share-based compensation	$ 0	650	0	0		650
Net share settlement of RSUs	0	0	0	0		0
Other comprehensive income	0	0	0	0		0
Net income	$ 0	0	3,789	0		3,789
Exercise of stock options (in shares)	0
Exercise of stock options	$ 0	0	0	0		0
Other comprehensive income	$ 0	0	0	0		0
Balance (in shares) at Sep. 30, 2021	7,531				30
Balance at Sep. 30, 2021	$ 75	33,677	157,588	0	$ (587)	190,753
Balance (in shares) at Dec. 31, 2021	7,535				30
Balance at Dec. 31, 2021	$ 75	34,151	160,807	0	$ (587)	194,446
Share-based compensation (in shares)	46				0
Share-based compensation	$ 1	691	0	0	$ 0	692
Net share settlement of RSUs (in shares)	(20)				0
Net share settlement of RSUs	$ 0	(1,299)	0	0	$ 0	(1,299)
Other comprehensive income	0	0	0	381	0	381
Net income	0	0	4,858		0	4,858
Other comprehensive income	$ 0	0	0	381	$ 0	381
Balance (in shares) at Mar. 31, 2022	7,561				30
Balance at Mar. 31, 2022	$ 76	33,543	165,665	381	$ (587)	199,078
Balance (in shares) at Dec. 31, 2021	7,535				30
Balance at Dec. 31, 2021	$ 75	34,151	160,807	0	$ (587)	194,446
Other comprehensive income						(2,860)
Net income						33,327
Other comprehensive income						(2,860)
Balance (in shares) at Sep. 30, 2022	7,569				30
Balance at Sep. 30, 2022	$ 76	35,396	194,134	(2,860)	$ (587)	226,159
Balance (in shares) at Mar. 31, 2022	7,561				30
Balance at Mar. 31, 2022	$ 76	33,543	165,665	381	$ (587)	199,078
Share-based compensation (in shares)	4				0
Share-based compensation	$ 0	781	0	0	$ 0	781
Net share settlement of RSUs	0	(3)	0	0	0	(3)
Other comprehensive income	0	0	0	(1,516)	0	(1,516)
Net income	$ 0	0	8,929	0	$ 0	8,929
Exercise of stock options (in shares)	1				0
Exercise of stock options	$ 0	21	0	0	$ 0	21
Other comprehensive income	$ 0	0	0	(1,516)	$ 0	(1,516)
Balance (in shares) at Jun. 30, 2022	7,566				30
Balance at Jun. 30, 2022	$ 76	34,342	174,594	(1,135)	$ (587)	207,290
Share-based compensation (in shares)	0				0
Share-based compensation	$ 0	897	0	0	$ 0	897
Net share settlement of RSUs	0	(189)	0	0	0	(189)
Other comprehensive income	0	0	0	(1,725)	0	(1,725)
Net income	$ 0	0	19,540	0	$ 0	19,540
Exercise of stock options (in shares)	14				0
Exercise of stock options	$ 0	346	0	0	$ 0	346
Other comprehensive income	$ 0	0	0	(1,725)	$ 0	(1,725)
Balance (in shares) at Sep. 30, 2022	7,569				30
Balance at Sep. 30, 2022	$ 76	$ 35,396	$ 194,134	$ (2,860)	$ (587)	$ 226,159