Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Additional Paid-in Capital	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Loss, net of tax	Unearned ESOP Shares
Balances at beginning of period (in shares) at Dec. 31, 2021	9,125,759
Balances at beginning of period at Dec. 31, 2021	$ 157,879		$ 91	$ 72,298	$ 86,162		$ 174	$ (846)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	10,014				10,014
Other comprehensive income (loss), net of tax	$ (7,598)						(7,598)
Exercise of stock options (in shares)	54,481
Exercise of stock options	$ 454		(1)	455
Issuance of common stock - restricted stock awards, net (in shares)	45,544
Issuance of common stock - restricted stock awards, net(1)	$ 0		0	0
Compensation related to stock options and restricted stock awards	641			641
Allocation of ESOP shares	$ 1,372			526				846
Repurchase and retirement of common stock (in shares)	(84,981)
Repurchase and retirement of common stock	$ (1,398)		1	(1,399)
Canceled common stock - restricted stock awards (in shares)	(13,208)
Canceled common stock - restricted stock awards	$ (226)			(226)
Cash dividend declared and paid	$ (3,248)				(3,248)
Balances at end of period (in shares) at Sep. 30, 2022	9,127,595
Balances at end of period at Sep. 30, 2022	$ 157,890		91	72,295	92,928		(7,424)	0
Balances at beginning of period (in shares) at Jun. 30, 2022	9,091,533
Balances at beginning of period at Jun. 30, 2022	$ 156,896		91	71,835	90,066		(4,814)	(282)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	3,946				3,946
Other comprehensive income (loss), net of tax	$ (2,610)						(2,610)
Exercise of stock options (in shares)	50,000
Exercise of stock options	$ 407			407
Issuance of common stock - restricted stock awards, net (in shares)	13,332
Issuance of common stock - restricted stock awards, net(1)	$ 0		0
Compensation related to stock options and restricted stock awards	327			327
Allocation of ESOP shares	$ 430			148				282
Repurchase and retirement of common stock (in shares)	(27,270)
Repurchase and retirement of common stock	$ (422)		0	(422)
Cash dividend declared and paid	$ (1,084)				(1,084)
Balances at end of period (in shares) at Sep. 30, 2022	9,127,595
Balances at end of period at Sep. 30, 2022	$ 157,890		91	72,295	92,928		(7,424)	$ 0
Balances at beginning of period (in shares) at Dec. 31, 2022	9,127,595
Balances at beginning of period at Dec. 31, 2022	$ 160,360	$ (395)	91	72,424	95,059	$ 395	(7,214)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	5,111				5,111
Other comprehensive income (loss), net of tax	$ (2,775)						(2,775)
Exercise of stock options (in shares)	95,019
Exercise of stock options	$ 1,023			1,023
Issuance of common stock - restricted stock awards, net (in shares)	40,618
Issuance of common stock - restricted stock awards, net(1)	$ 1		1
Compensation related to stock options and restricted stock awards	$ 497			497
Canceled common stock - restricted stock awards (in shares)	(83,722)
Canceled common stock - restricted stock awards	$ (1,018)			(1,018)
Cash dividend declared and paid	$ (3,569)				(3,569)
Balances at end of period (in shares) at Sep. 30, 2023	9,179,510
Balances at end of period at Sep. 30, 2023	$ 159,235		92	72,926	96,206		(9,989)
Balances at beginning of period (in shares) at Jun. 30, 2023	9,148,086
Balances at beginning of period at Jun. 30, 2023	$ 158,715		92	72,544	95,896		(9,817)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,501				1,501
Other comprehensive income (loss), net of tax	$ (172)						(172)
Exercise of stock options (in shares)	95,019
Exercise of stock options	$ 1,023			1,023
Issuance of common stock - restricted stock awards, net (in shares)	13,000
Issuance of common stock - restricted stock awards, net(1)	$ 0		0
Compensation related to stock options and restricted stock awards	$ 270			270
Canceled common stock - restricted stock awards (in shares)	(76,595)
Canceled common stock - restricted stock awards	$ (911)			(911)
Cash dividend declared and paid	$ (1,191)				(1,191)
Balances at end of period (in shares) at Sep. 30, 2023	9,179,510
Balances at end of period at Sep. 30, 2023	$ 159,235		$ 92	$ 72,926	$ 96,206		$ (9,989)