CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-In Capital	Accumulated Surplus	Accumulated Other Comprehensive Income (Loss)	Total
BALANCE at Dec. 31, 2020	$ 114	$ 151,249	$ 133,879	$ (2,789)	$ 282,453
Components of comprehensive income:
Net income			3,178		3,178
Foreign currency translation adjustment				760	760
COMPREHENSIVE INCOME			3,178	760	3,938
Issuance of common stock to non-employee directors		200			200
Dividends paid			(2,054)		(2,054)
BALANCE at Mar. 31, 2021	114	151,449	135,003	(2,029)	284,537
BALANCE at Dec. 31, 2020	114	151,249	133,879	(2,789)	282,453
Components of comprehensive income:
Net income					13,540
Foreign currency translation adjustment					(162)
COMPREHENSIVE INCOME					13,378
BALANCE at Sep. 30, 2021	114	151,449	141,257	(2,951)	289,869
BALANCE at Mar. 31, 2021	114	151,449	135,003	(2,029)	284,537
Components of comprehensive income:
Net income			6,516		6,516
Foreign currency translation adjustment				579	579
COMPREHENSIVE INCOME			6,516	579	7,095
Dividends paid			(2,054)		(2,054)
BALANCE at Jun. 30, 2021	114	151,449	139,465	(1,450)	289,578
Components of comprehensive income:
Net income			3,846		3,846
Foreign currency translation adjustment				(1,501)	(1,501)
COMPREHENSIVE INCOME			3,846	(1,501)	2,345
Dividends paid			(2,054)		(2,054)
BALANCE at Sep. 30, 2021	114	151,449	141,257	(2,951)	289,869
BALANCE at Dec. 31, 2021	114	151,449	141,918	(4,945)	288,536
Components of comprehensive income:
Net income			2,065		2,065
Foreign currency translation adjustment				25	25
COMPREHENSIVE INCOME			2,065	25	2,090
Issuance of common stock to non-employee directors		200			200
Stock-based compensation on nonvested restricted stock units		75			75
Dividends paid			(2,055)		(2,055)
BALANCE at Mar. 31, 2022	114	151,724	141,928	(4,920)	288,846
BALANCE at Dec. 31, 2021	114	151,449	141,918	(4,945)	288,536
Components of comprehensive income:
Net income					11,054
Foreign currency translation adjustment					(5,621)
COMPREHENSIVE INCOME					5,433
BALANCE at Sep. 30, 2022	114	152,169	146,807	(10,566)	288,524
BALANCE at Mar. 31, 2022	114	151,724	141,928	(4,920)	288,846
Components of comprehensive income:
Net income			3,757		3,757
Foreign currency translation adjustment				(2,305)	(2,305)
COMPREHENSIVE INCOME			3,757	(2,305)	1,452
Stock-based compensation on nonvested restricted stock units		222			222
Dividends paid			(2,054)		(2,054)
BALANCE at Jun. 30, 2022	114	151,946	143,631	(7,225)	288,466
Components of comprehensive income:
Net income			5,232		5,232
Foreign currency translation adjustment				(3,341)	(3,341)
COMPREHENSIVE INCOME			5,232	(3,341)	1,891
Stock-based compensation on nonvested restricted stock units		223			223
Dividends paid			(2,056)		(2,056)
BALANCE at Sep. 30, 2022	$ 114	$ 152,169	$ 146,807	$ (10,566)	$ 288,524