Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss), net of Tax
Beginning balance (in shares) at Dec. 31, 2023		5,513,000
Beginning balance, value at Dec. 31, 2023	$ 234,718	$ 5,513	$ 9,605	$ 236,037	$ (16,437)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividend on common stock	(3,388)			(3,388)
Stock-based compensation expense	208		208
Exercise of stock options and vesting of restricted stock units, net (in shares)		1,000
Exercise of stock options and vesting of restricted stock units, net	(26)	$ 1	(27)
Repurchase of common stock (in shares)		(14,000)
Repurchase of common stock	(788)	$ (14)	(774)
Other comprehensive income (loss), net of tax	404				404
Net income	8,199			8,199
Ending balance (in shares) at Mar. 31, 2024		5,500,000
Ending balance, value at Mar. 31, 2024	239,327	$ 5,500	9,012	240,848	(16,033)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividend on common stock	(3,393)			(3,393)
Stock-based compensation expense	219		219
Exercise of stock options and vesting of restricted stock units, net (in shares)		2,000
Exercise of stock options and vesting of restricted stock units, net	(21)	$ 2	(23)
Other comprehensive income (loss), net of tax	2,048				2,048
Net income	9,020			9,020
Ending balance (in shares) at Jun. 30, 2024		5,502,000
Ending balance, value at Jun. 30, 2024	247,200	$ 5,502	9,208	246,475	(13,985)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividend on common stock	(3,458)			(3,458)
Stock-based compensation expense	265		265
Exercise of stock options and vesting of restricted stock units, net	(13)		(13)
Other comprehensive income (loss), net of tax	7,231				7,231
Net income	8,825			8,825
Ending balance (in shares) at Sep. 30, 2024		5,502,000
Ending balance, value at Sep. 30, 2024	260,050	$ 5,502	9,460	251,842	(6,754)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividend on common stock	(3,458)			(3,458)
Stock-based compensation expense	221		221
Exercise of stock options and vesting of restricted stock units, net (in shares)		16,000
Exercise of stock options and vesting of restricted stock units, net	(354)	$ 16	(370)
Other comprehensive income (loss), net of tax	(270)				(270)
Net income	$ 10,927			10,927
Ending balance (in shares) at Dec. 31, 2024	5,518,210	5,518,000
Ending balance, value at Dec. 31, 2024	$ 267,116	$ 5,518	9,311	259,311	(7,024)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividend on common stock	(3,573)			(3,573)
Stock-based compensation expense	232		232
Exercise of stock options and vesting of restricted stock units, net (in shares)		3,000
Exercise of stock options and vesting of restricted stock units, net	(17)	$ 3	(20)
Other comprehensive income (loss), net of tax	2,674				2,674
Net income	$ 13,324			13,324
Ending balance (in shares) at Mar. 31, 2025	5,520,892	5,521,000
Ending balance, value at Mar. 31, 2025	$ 279,756	$ 5,521	$ 9,523	$ 269,062	$ (4,350)