Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Treasury Stock And Deferred Compensation	Shares Acquired By ESOP	Retained Earnings	Other Comprehensive Income Income (Loss)	Total
Beginning Balance at Dec. 31, 2019	$ 5,959	$ 22,871	$ (2,121)	$ (228)	$ 27,905	$ 5,536	$ 59,922
Net income					5,313		5,313
Other comprehensive income						4,077	4,077
Cash dividends - per share					(2,521)		(2,521)
Shares sold for deferred compensation plan		(51)	51
Repurchase of common stock			526				526
Expense related to share-based compensation plans		219					219
Restricted stock activity	17	(20)					(3)
Amortization of ESOP		41		169			210
Ending Balance at Sep. 30, 2020	5,976	23,060	(2,596)	(59)	30,697	9,613	66,691
Beginning Balance at Jun. 30, 2020	5,966	22,845	(2,555)	(84)	29,479	10,334	65,985
Net income					2,059		2,059
Other comprehensive income						(721)	(721)
Cash dividends - per share					(841)		(841)
Shares sold for deferred compensation plan		41	(41)
Expense related to share-based compensation plans		146					146
Restricted stock activity	10	(13)					(3)
Amortization of ESOP		41		25			66
Ending Balance at Sep. 30, 2020	5,976	23,060	(2,596)	$ (59)	30,697	9,613	66,691
Beginning Balance at Dec. 31, 2020	6,046	23,166	(2,664)		32,497	9,283	68,328
Net income					6,995		6,995
Other comprehensive income						(2,373)	(2,373)
Cash dividends - per share					(3,206)		(3,206)
Shares sold for deferred compensation plan		47	(47)
Expense related to share-based compensation plans		(310)					(310)
Restricted stock activity	10	(10)
Ending Balance at Sep. 30, 2021	6,056	23,513	(2,711)		36,286	6,910	70,054
Beginning Balance at Jun. 30, 2021	6,046	23,368	(2,660)		34,277	8,345	69,376
Net income					2,902		2,902
Other comprehensive income						(1,435)	(1,435)
Cash dividends - per share					(893)		(893)
Shares sold for deferred compensation plan		51	(51)
Expense related to share-based compensation plans		104					104
Restricted stock activity	10	(10)
Ending Balance at Sep. 30, 2021	$ 6,056	$ 23,513	$ (2,711)		$ 36,286	$ 6,910	$ 70,054