Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance at Dec. 31, 2019	$ 8,112	$ 184,120	$ (8,506)	$ 183,726
Net income	0	6,961	0	6,961
Dividends	0	(4,348)	0	(4,348)
Other comprehensive income (loss), net of tax	0	0	9,442	9,442
Balance at Jun. 30, 2020	8,112	186,733	936	195,781
Balance at Mar. 31, 2020	8,112	188,099	(4,652)	191,559
Net income	0	2,982	0	2,982
Dividends	0	(4,348)	0	(4,348)
Other comprehensive income (loss), net of tax	0	0	5,588	5,588
Balance at Jun. 30, 2020	8,112	186,733	936	195,781
Balance at Dec. 31, 2020	8,040	189,547	3,020	200,607
Net income	0	9,379	0	9,379
Dividends	0	(4,319)	0	(4,319)
Other comprehensive income (loss), net of tax	0	0	(5,078)	(5,078)
Common stock repurchased	(327)	(9,027)	0	(9,354)
Balance at Jun. 30, 2021	7,713	185,580	(2,058)	191,235
Balance at Mar. 31, 2021	7,900	190,462	(9,293)	189,069
Net income	0	4,613	0	4,613
Dividends	0	(4,319)	0	(4,319)
Other comprehensive income (loss), net of tax	0	0	7,235	7,235
Common stock repurchased	(187)	(5,176)		(5,363)
Balance at Jun. 30, 2021	$ 7,713	$ 185,580	$ (2,058)	$ 191,235