Unaudited Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Retained Earnings [Member] Cumulative Effect of Change in Accounting Principle, Net of Tax [Member]	Accumulated Other Comprehensive Loss [Member]	Total
Balance at Dec. 31, 2022	$ 91	$ 95,263	$ 58,049	$ (572)	$ (9,303)
Balance (in shares) at Dec. 31, 2022	9,131,973
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible Enumeration]						Accounting Standards Update 2016-13 [Member]
Net income			27,206			$ 27,206
Exercise of employee stock options (in shares)	26,986
Exercise of stock options		480
Shares issued for restricted stock units (in shares)	40,734
Shares issued for restricted stock units	$ 1
Shares acquired and canceled (in shares)	(14,718)
Shares purchased and retired for restricted stock units		(367)
Stock-based compensation expense		1,692
Cash dividends declared			(4,858)
Comprehensive income (loss)					225	225
Balance at Sep. 30, 2023	$ 92	97,068	79,825		(9,078)	$ 167,907
Balance (in shares) at Sep. 30, 2023	9,184,975
Balance at Jun. 30, 2023	$ 92	96,498	73,901	0	(8,711)
Balance (in shares) at Jun. 30, 2023	9,154,934
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible Enumeration]						Accounting Standards Update 2016-13 [Member]
Net income			7,853			$ 7,853
Exercise of employee stock options (in shares)	13,124
Exercise of stock options		236
Shares issued for restricted stock units (in shares)	26,625
Shares issued for restricted stock units	$ 0
Shares acquired and canceled (in shares)	(9,708)
Shares purchased and retired for restricted stock units		(231)
Stock-based compensation expense		565
Cash dividends declared			(1,929)
Comprehensive income (loss)					(367)	(367)
Balance at Sep. 30, 2023	$ 92	97,068	79,825		(9,078)	167,907
Balance (in shares) at Sep. 30, 2023	9,184,975
Balance at Dec. 31, 2023	$ 92	97,417	78,962	0	(6,145)	$ 170,326
Balance (in shares) at Dec. 31, 2023	9,197,696
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible Enumeration]						Accounting Standards Update 2016-13 [Member]
Net income			34,589			$ 34,589
Exercise of employee stock options (in shares)	106,820
Exercise of stock options		1,906
Shares issued for restricted stock units (in shares)	52,261
Shares issued for restricted stock units	$ 1
Shares acquired and canceled (in shares)	(15,510)
Shares purchased and retired for restricted stock units		(425)
Stock-based compensation expense		1,862
Cash dividends declared			(6,125)
Comprehensive income (loss)					2,028	2,028
Balance at Sep. 30, 2024	$ 93	100,760	107,426		(4,117)	$ 204,162
Balance (in shares) at Sep. 30, 2024	9,341,267
Balance at Jun. 30, 2024	$ 93	98,570	97,891	$ 0	(5,748)
Balance (in shares) at Jun. 30, 2024	9,253,038
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible Enumeration]						Accounting Standards Update 2016-13 [Member]
Net income			11,777			$ 11,777
Exercise of employee stock options (in shares)	87,819
Exercise of stock options		1,576
Shares issued for restricted stock units (in shares)	625
Shares issued for restricted stock units	$ 0
Shares acquired and canceled (in shares)	(215)
Shares purchased and retired for restricted stock units		(7)
Stock-based compensation expense		621
Cash dividends declared			(2,242)
Comprehensive income (loss)					1,631	1,631
Balance at Sep. 30, 2024	$ 93	$ 100,760	$ 107,426		$ (4,117)	$ 204,162
Balance (in shares) at Sep. 30, 2024	9,341,267