Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Unearned Employee Stock Ownership Plan Shares [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2020	$ 91	$ 40,480	$ 117,849	$ 1,282	$ (1,450)	$ (55,000)	$ 103,252
Net income			11,565				11,565
Other comprehensive income (loss)				(1,508)			(1,508)
Stock repurchases						(3,866)	(3,866)
Amortization of restricted stock awards		182					182
Earned employee stock ownership plan shares		170			146		316
Restricted stock awards		(222)				222	0
Stock awards withheld for tax withholding						(7)	(7)
Balance at Sep. 30, 2021	91	40,610	129,414	(226)	(1,304)	(58,651)	109,934
Balance at Jun. 30, 2021	91	40,484	125,795	462	(1,353)	(57,521)	107,958
Net income			3,619				3,619
Other comprehensive income (loss)				(688)			(688)
Stock repurchases						(1,130)	(1,130)
Amortization of restricted stock awards		61					61
Earned employee stock ownership plan shares		65			49		114
Balance at Sep. 30, 2021	91	40,610	129,414	(226)	(1,304)	(58,651)	109,934
Balance at Dec. 31, 2021	91	40,740	131,413	(1,583)	(1,256)	(59,374)	110,031
Net income			5,607				5,607
Other comprehensive income (loss)				(23,458)			(23,458)
Dividends paid to stockholders			(790)				(790)
Stock repurchases						(2,134)	(2,134)
Amortization of restricted stock awards		172					172
Earned employee stock ownership plan shares		207			145		352
Restricted stock awards		(225)				225	0
Stock awards withheld for tax withholding						(70)	(70)
Balance at Sep. 30, 2022	91	40,894	136,230	(25,041)	(1,111)	(61,353)	89,710
Balance at Jun. 30, 2022	91	40,775	134,661	(17,852)	(1,159)	(60,668)	95,848
Net income			1,831				1,831
Other comprehensive income (loss)				(7,189)			(7,189)
Dividends paid to stockholders			(262)				(262)
Stock repurchases						(685)	(685)
Amortization of restricted stock awards		55					55
Earned employee stock ownership plan shares		64			48		112
Balance at Sep. 30, 2022	$ 91	$ 40,894	$ 136,230	$ (25,041)	$ (1,111)	$ (61,353)	$ 89,710