Condensed 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]	Total
Balance (in shares) at Dec. 31, 2018	3,138,945
Balance at Dec. 31, 2018	$ 31	$ 38,330	$ 13,015	$ (556)	$ 50,820
Net earnings			867		867
Dividends paid (unaudited)			(377)		(377)
Net change in unrealized gain on debt securities available for sale, net of income tax expense (unaudited)				320	320
Common stock issued as compensation to directors (unaudited) (in shares)	595
Common stock issued as compensation to directors (unaudited)		12			12
Issuance of restricted stock (unaudited) (in shares)	3,600
Issuance of restricted stock (unaudited)
Stock-based compensation (unaudited)		42			42
Balance (in shares) at Mar. 31, 2019	3,143,140
Balance at Mar. 31, 2019	$ 31	38,384	13,505	(236)	51,684
Balance (in shares) at Dec. 31, 2018	3,138,945
Balance at Dec. 31, 2018	$ 31	38,330	13,015	(556)	50,820
Net earnings					1,631
Net change in unrealized gain on debt securities available for sale, net of income tax expense (unaudited)					802
Balance (in shares) at Jun. 30, 2019	3,144,456
Balance at Jun. 30, 2019	$ 31	38,450	14,269	246	52,996
Balance (in shares) at Mar. 31, 2019	3,143,140
Balance at Mar. 31, 2019	$ 31	38,384	13,505	(236)	51,684
Net earnings			764		764
Net change in unrealized gain on debt securities available for sale, net of income tax expense (unaudited)				482	482
Common stock issued as compensation to directors (unaudited) (in shares)	1,016
Common stock issued as compensation to directors (unaudited)		19			19
Stock-based compensation (unaudited)		44			44
Stock options exercised (unaudited) (in shares)	300
Stock options exercised (unaudited)		3			3
Stock options exercised (unaudited)		3			3
Balance (in shares) at Jun. 30, 2019	3,144,456
Balance at Jun. 30, 2019	$ 31	38,450	14,269	246	$ 52,996
Balance (in shares) at Dec. 31, 2019	3,191,288				3,191,288
Balance at Dec. 31, 2019	$ 32	39,456	16,180	200	$ 55,868
Net earnings			716		716
Dividends paid (unaudited)			(383)		(383)
Net change in unrealized gain on debt securities available for sale, net of income tax expense (unaudited)				611	611
Common stock issued as compensation to directors (unaudited) (in shares)	995
Common stock issued as compensation to directors (unaudited)		20			20
Issuance of restricted stock (unaudited) (in shares)	3,835
Issuance of restricted stock (unaudited)
Stock-based compensation (unaudited)		51			51
Stock options exercised (unaudited) (in shares)	2,000
Stock options exercised (unaudited)		25			25
Stock options exercised (unaudited)		25			25
Common stock retirement (unaudited) (in shares)	(82,784)
Common stock retirement (unaudited)	$ (1)	(1,216)			(1,217)
Balance (in shares) at Mar. 31, 2020	3,115,334
Balance at Mar. 31, 2020	$ 31	38,336	16,513	811	$ 55,691
Balance (in shares) at Dec. 31, 2019	3,191,288				3,191,288
Balance at Dec. 31, 2019	$ 32	39,456	16,180	200	$ 55,868
Net earnings					1,436
Net change in unrealized gain on debt securities available for sale, net of income tax expense (unaudited)					$ 1,156
Balance (in shares) at Jun. 30, 2020	3,116,499				3,116,499
Balance at Jun. 30, 2020	$ 31	38,412	17,233	1,356	$ 57,032
Balance (in shares) at Mar. 31, 2020	3,115,334
Balance at Mar. 31, 2020	$ 31	38,336	16,513	811	55,691
Net earnings			720		720
Net change in unrealized gain on debt securities available for sale, net of income tax expense (unaudited)				545	545
Common stock issued as compensation to directors (unaudited) (in shares)	1,165
Common stock issued as compensation to directors (unaudited)		21			21
Stock-based compensation (unaudited)		55			$ 55
Balance (in shares) at Jun. 30, 2020	3,116,499				3,116,499
Balance at Jun. 30, 2020	$ 31	$ 38,412	$ 17,233	$ 1,356	$ 57,032