CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock
Beginning balance, shares outstanding at Dec. 31, 2024		15,254
Beginning balance at Dec. 31, 2024	$ 208,550	$ 269	$ 294,528	$ 192,506	$ (278,753)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	39,235			39,235
Issuance of common stock from employee stock purchase plan (in shares)		27
Issuance of common stock from employee stock purchase plan	891		891
Issuance of common stock to directors and board advisor (in shares)		5
Issuance of common stock to directors and board advisor	203		203
Issuance of common stock (in shares)		271
Issuance of common stock	0	$ 3	(3)
Issuance of restricted common stock (in shares)		115
Issuance of restricted common stock	0	$ 1	(1)
Exercise of stock options (in shares)		132
Exercise of stock options	585	$ 1	584
Restricted common stock, performance awards, and stock options surrendered for taxes paid (in shares)		(71)
Restricted common stock, performance awards, and stock options surrendered for taxes paid	(8,276)		(8,276)
Stock-based compensation expense	5,654		5,654
Dividends on common stock	(5,254)			(5,254)
Other (in shares)		12
Other	496		496
Ending balance, shares outstanding at Sep. 30, 2025		15,745
Ending balance at Sep. 30, 2025	242,084	$ 274	294,076	226,487	(278,753)
Beginning balance, shares outstanding at Jun. 30, 2025		15,701
Beginning balance at Jun. 30, 2025	235,420	$ 273	292,217	221,683	(278,753)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	6,570			6,570
Issuance of common stock from employee stock purchase plan (in shares)		7
Issuance of common stock from employee stock purchase plan	229		229
Issuance of common stock to directors and board advisor (in shares)		2
Issuance of common stock to directors and board advisor	63		63
Exercise of stock options (in shares)		53
Exercise of stock options	264	$ 1	263
Restricted common stock, performance awards, and stock options surrendered for taxes paid (in shares)		(18)
Restricted common stock, performance awards, and stock options surrendered for taxes paid	(645)		(645)
Stock-based compensation expense	1,949		1,949
Dividends on common stock	(1,766)			(1,766)
Ending balance, shares outstanding at Sep. 30, 2025		15,745
Ending balance at Sep. 30, 2025	242,084	$ 274	294,076	226,487	(278,753)
Beginning balance, shares outstanding at Dec. 31, 2025		15,751
Beginning balance at Dec. 31, 2025	254,776	$ 274	296,267	236,988	(278,753)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	34,644			34,644
Issuance of common stock from employee stock purchase plan (in shares)		27
Issuance of common stock from employee stock purchase plan	913		913
Issuance of common stock to directors and board advisor (in shares)		7
Issuance of common stock to directors and board advisor	238		238
Issuance of common stock (in shares)		1
Issuance of common stock	59	$ 0	59
Issuance of restricted common stock (in shares)		110
Issuance of restricted common stock	0	$ 1	(1)
Exercise of stock options (in shares)		64
Exercise of stock options	3		3
Restricted common stock, performance awards, and stock options surrendered for taxes paid (in shares)		(85)
Restricted common stock, performance awards, and stock options surrendered for taxes paid	(2,387)		(2,387)
Stock-based compensation expense	5,443		5,443
Dividends on common stock	(5,342)			(5,342)
Other (in shares)		1
Other	6		4	2
Ending balance, shares outstanding at Sep. 30, 2026		15,877
Ending balance at Sep. 30, 2026	288,353	$ 275	300,539	266,292	(278,753)
Beginning balance, shares outstanding at Jun. 30, 2026		15,882
Beginning balance at Jun. 30, 2026	279,369	$ 275	298,652	259,195	(278,753)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	8,880			8,880
Issuance of common stock from employee stock purchase plan (in shares)		9
Issuance of common stock from employee stock purchase plan	228		228
Issuance of common stock to directors and board advisor (in shares)		3
Issuance of common stock to directors and board advisor	117		117
Exercise of stock options (in shares)		1
Exercise of stock options	0		0
Restricted common stock, performance awards, and stock options surrendered for taxes paid (in shares)		(17)
Restricted common stock, performance awards, and stock options surrendered for taxes paid	0		0
Stock-based compensation expense	1,542		1,542
Dividends on common stock	(1,785)			(1,785)
Other (in shares)		0
Other	2		0	2
Ending balance, shares outstanding at Sep. 30, 2026		15,877
Ending balance at Sep. 30, 2026	$ 288,353	$ 275	$ 300,539	$ 266,292	$ (278,753)