Interim Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning balance ( in shares) at Dec. 31, 2021		11,791,000
Beginning balance at Dec. 31, 2021	$ 705,663	$ 1,187	$ 124,228	$ (4,566)	$ 633,804	$ (48,990)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income	22,195				18,470	3,725
Stock-based compensation expense	1,371		1,371
Stock-based compensation transactions (in shares)		20,000
Stock-based compensation transactions	84	$ 2	82
Dividends paid	(2,133)				(2,133)
Ending balance (in shares) at Mar. 31, 2022		11,811,000
Ending balance at Mar. 31, 2022	$ 727,180	$ 1,189	125,681	(4,566)	650,141	(45,265)
Beginning balance ( in shares) at Dec. 31, 2022	11,913,890	11,831,000
Beginning balance at Dec. 31, 2022	$ 785,360	$ 1,191	129,820	(4,566)	727,183	(68,268)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income	37,763				33,349	4,414
Stock-based compensation expense	1,699		1,699
Stock-based compensation transactions (in shares)		28,000
Stock-based compensation transactions	141	$ 3	138
Dividends paid	$ (2,615)				(2,615)
Ending balance (in shares) at Mar. 31, 2023	11,941,738	11,859,000
Ending balance at Mar. 31, 2023	$ 822,348	$ 1,194	$ 131,657	$ (4,566)	$ 757,917	$ (63,854)