Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Dec. 31, 2017	16,272,000
Balance at Dec. 31, 2017	$ 51,830	$ 75,700	$ (266)	$ 127,264
Net income		3,241		3,241
Reclassification of accumulated other comprehensive income due to tax rate change		52	(52)
Other comprehensive loss, net of tax			(2,426)	(2,426)
Comprehensive income				815
Dividend declared on common stock		(486)		(486)
Stock compensation grants (in shares)	5,000
Stock compensation grants	$ 45			45
Restricted stock granted, net (in shares)	(20,000)
Restricted stock granted, net
Stock options exercised (in shares)	19,000
Stock options exercised	$ 113			113
Compensation expense associated with stock options	3			3
Compensation expense associated with restricted stock, net of cash paid for shares surrendered for tax-withholding purposes	$ (32)			(32)
Restricted stock granted, net (in shares)	20,000
Balance (in shares) at Mar. 31, 2018	16,316,000
Balance at Mar. 31, 2018	$ 51,959	78,507	(2,744)	127,722
Balance (in shares) at Dec. 31, 2017	16,272,000
Balance at Dec. 31, 2017	$ 51,830	75,700	(266)	127,264
Net income				10,891
Other comprehensive loss, net of tax				(3,761)
Comprehensive income				7,130
Stock compensation grants				45
Balance (in shares) at Sep. 30, 2018	16,330,000
Balance at Sep. 30, 2018	$ 52,191	84,857	(4,079)	132,969
Balance (in shares) at Mar. 31, 2018	16,316,000
Balance at Mar. 31, 2018	$ 51,959	78,507	(2,744)	127,722
Net income		3,618		3,618
Other comprehensive loss, net of tax			(696)	(696)
Comprehensive income				2,922
Dividend declared on common stock		(650)		(650)
Stock options exercised (in shares)	2,000
Stock options exercised	$ 10			10
Compensation expense associated with stock options	2			2
Compensation expense associated with restricted stock, net of cash paid for shares surrendered for tax-withholding purposes	$ 72			72
Balance (in shares) at Jun. 30, 2018	16,318,000
Balance at Jun. 30, 2018	$ 52,043	81,475	(3,440)	130,078
Net income		4,032		4,032
Other comprehensive loss, net of tax			(639)	(639)
Comprehensive income				3,393
Dividend declared on common stock		(650)		(650)
Stock options exercised (in shares)	12,000
Stock options exercised	$ 74			74
Compensation expense associated with stock options	3			3
Compensation expense associated with restricted stock, net of cash paid for shares surrendered for tax-withholding purposes	$ 71			71
Balance (in shares) at Sep. 30, 2018	16,330,000
Balance at Sep. 30, 2018	$ 52,191	84,857	(4,079)	132,969
Net income		4,839		4,839
Other comprehensive loss, net of tax			1,071	1,071
Comprehensive income				5,910
Dividend declared on common stock		(651)		(651)
Stock options exercised (in shares)	4,000
Stock options exercised	$ 19			19
Compensation expense associated with restricted stock, net of cash paid for shares surrendered for tax-withholding purposes	$ 74			$ 74
Balance (in shares) at Dec. 31, 2018	16,334,000			16,333,502
Balance at Dec. 31, 2018	$ 52,284	89,045	(3,008)	$ 138,321
Net income		2,306		2,306
Other comprehensive loss, net of tax			2,514	2,514
Comprehensive income				4,820
Dividend declared on common stock		(725)		(725)
Stock compensation grants (in shares)	6,000
Stock compensation grants	$ 58			58
Restricted stock granted, net (in shares)	(31,000)
Restricted stock granted, net
Stock options exercised (in shares)	8,000
Stock options exercised	$ 40			40
Compensation expense associated with restricted stock, net of cash paid for shares surrendered for tax-withholding purposes	$ (22)			(22)
Stock issued for Merchants acquisition (in shares)	1,834,000
Stock issued for Merchants acquisition	$ 19,606			19,606
Restricted stock granted, net (in shares)	31,000
Balance (in shares) at Mar. 31, 2019	18,213,000
Balance at Mar. 31, 2019	$ 71,966	90,626	(494)	$ 162,098
Balance (in shares) at Dec. 31, 2018	16,334,000			16,333,502
Balance at Dec. 31, 2018	$ 52,284	89,045	(3,008)	$ 138,321
Net income				10,592
Other comprehensive loss, net of tax				5,345
Comprehensive income				15,937
Stock compensation grants				$ 58
Balance (in shares) at Sep. 30, 2019	18,212,000			18,211,568
Balance at Sep. 30, 2019	$ 72,200	97,100	2,337	$ 171,637
Balance (in shares) at Mar. 31, 2019	18,213,000
Balance at Mar. 31, 2019	$ 71,966	90,626	(494)	162,098
Net income		3,644		3,644
Other comprehensive loss, net of tax			2,897	2,897
Comprehensive income				6,541
Dividend declared on common stock		(907)		(907)
Restricted stock granted, net (in shares)	(1,000)
Restricted stock granted, net
Compensation expense associated with restricted stock, net of cash paid for shares surrendered for tax-withholding purposes	$ 121			121
Restricted stock granted, net (in shares)	1,000
Balance (in shares) at Jun. 30, 2019	18,214,000
Balance at Jun. 30, 2019	$ 72,087	93,363	2,403	167,853
Net income		4,642		4,642
Other comprehensive loss, net of tax			(66)	(66)
Comprehensive income				4,576
Dividend declared on common stock		(905)		(905)
Restricted stock granted, net (in shares)	(2,000)
Restricted stock granted, net
Compensation expense associated with restricted stock, net of cash paid for shares surrendered for tax-withholding purposes	$ 113			$ 113
Restricted stock granted, net (in shares)	2,000
Balance (in shares) at Sep. 30, 2019	18,212,000			18,211,568
Balance at Sep. 30, 2019	$ 72,200	$ 97,100	$ 2,337	$ 171,637