Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]
Beginning balance at Dec. 31, 2021	$ 500,631	$ 203	$ 478,862	$ 88,324	$ 1,776	$ (68,534)
Beginning balance, shares at Dec. 31, 2021		16,760,115
Net income (loss)	57,688			57,688
Other comprehensive income (loss), net of tax effects	(115,287)				(115,287)
Cash dividends - common stock per share	(5,801)			(5,801)
Dividend equivalents - restricted stock units per share	(116)			(116)
Stock-based compensation	3,325		3,325
Stock-based compensation, shares		624
Common stock issued upon exercise of stock options	2,011	$ 1	2,010
Common stock issued upon exercise of stock options, shares		102,309
Common stock issued under stock-based incentive plans	1	$ 1
Common stock issued under stock-based incentive plans, shares		69,089
Common stock issued under employee stock purchase plan	792		792
Common stock issued under employee stock purchase plan, share		28,829
Treasury stock purchases	(33,186)					(33,186)
Treasury stock purchases, shares		(1,030,854)
Ending balance at Dec. 31, 2022	410,058	$ 205	484,989	140,095	(113,511)	(101,720)
Ending balance, shares at Dec. 31, 2022		15,930,112
Net income (loss)	7,821			7,821
Other comprehensive income (loss), net of tax effects	55,591				55,591
Cash dividends - common stock per share	(6,819)			(6,819)
Dividend equivalents - restricted stock units per share	(91)			(91)
Stock-based compensation	3,213		3,213
Common stock issued upon exercise of stock options	203		203
Common stock issued upon exercise of stock options, shares		12,829
Common stock issued under stock-based incentive plans		$ 2	(2)
Common stock issued under stock-based incentive plans, shares		137,820
Common stock issued under employee stock purchase plan	784		784
Common stock issued under employee stock purchase plan, share		32,056
Treasury stock purchases	(17,900)					(17,900)
Treasury stock purchases, shares		(669,166)
Ending balance at Dec. 31, 2023	452,860	$ 207	489,187	141,006	(57,920)	(119,620)
Ending balance, shares at Dec. 31, 2023		15,443,651
Net income (loss)	62,621			62,621
Other comprehensive income (loss), net of tax effects	2,739				2,739
Cash dividends - common stock per share	(8,575)			(8,575)
Dividend equivalents - restricted stock units per share	(132)			(132)
Stock-based compensation	4,048		4,048
Common stock issued upon exercise of stock options	3,506	$ 1	3,505
Common stock issued upon exercise of stock options, shares		147,777
Common stock issued under stock-based incentive plans		$ 1	(1)
Common stock issued under stock-based incentive plans, shares		102,066
Common stock issued under employee stock purchase plan	726		726
Common stock issued under employee stock purchase plan, share		29,465
Common stock issued with private placement, net of offering costs	86,980	$ 21	86,959
Common stock issued with private placement, net of offering costs, shares		2,067,240
Treasury stock purchases	(11,855)					(11,855)
Treasury stock purchases, shares		(362,573)
Ending balance at Dec. 31, 2024	$ 592,918	$ 230	$ 584,424	$ 194,920	$ (55,181)	$ (131,475)
Ending balance, shares at Dec. 31, 2024		17,427,626