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, 2018	16,334,000
Balance at Dec. 31, 2018	$ 52,284	$ 89,045	$ (3,008)	$ 138,321
Net income	0	2,306	0	2,306
Other comprehensive income (loss), net of tax	0	0	2,514	2,514
Comprehensive income	0	0	0	4,820
Dividend declared on common stock	$ 0	(725)	0	(725)
Stock issued for Merchants acquisition (in shares)	1,834,000
Stock issued for Merchants acquisition	$ 19,606	0	0	19,606
Stock compensation grants (in shares)	6,000
Stock compensation grants	$ 58	0	0	58
Restricted stock granted, net (in shares)	31,000
Restricted stock granted, net	$ 0	0	0	0
Stock options exercised (in shares)	8,000
Stock options exercised	$ 40	0	0	40
Compensation expense associated with restricted stock, net of cash paid for shares surrendered for tax-withholding purposes	$ (22)	0	0	(22)
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
Balance at Dec. 31, 2018	$ 52,284	89,045	(3,008)	138,321
Net income				10,592
Other comprehensive income (loss), net of tax				5,345
Comprehensive income				15,937
Stock compensation grants				58
Balance (in shares) at Sep. 30, 2019	18,212,000
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	0	3,644	0	3,644
Other comprehensive income (loss), net of tax	0	0	2,897	2,897
Comprehensive income	0	0	0	6,541
Dividend declared on common stock	$ 0	(907)	0	(907)
Restricted stock granted, net (in shares)	1,000
Restricted stock granted, net	$ 0	0	0	0
Compensation expense associated with restricted stock, net of cash paid for shares surrendered for tax-withholding purposes	$ 121	0	0	121
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	0	4,642	0	4,642
Other comprehensive income (loss), net of tax	0	0	(66)	(66)
Comprehensive income	0	0	0	4,576
Dividend declared on common stock	$ 0	(905)	0	(905)
Restricted stock granted, net (in shares)	(2,000)
Restricted stock granted, net	$ 0	0	0	0
Compensation expense associated with restricted stock, net of cash paid for shares surrendered for tax-withholding purposes	$ 113	0	0	113
Balance (in shares) at Sep. 30, 2019	18,212,000
Balance at Sep. 30, 2019	$ 72,200	97,100	2,337	171,637
Net income	0	4,369	0	4,369
Other comprehensive income (loss), net of tax	0	0	264	264
Comprehensive income	0	0	0	4,633
Dividend declared on common stock	$ 0	(903)	0	(903)
Restricted stock granted, net (in shares)	13,000
Restricted stock granted, net	$ 0	0	0	0
Stock options exercised (in shares)	3,000
Stock options exercised	$ 12	0	0	12
Compensation expense associated with restricted stock, net of cash paid for shares surrendered for tax-withholding purposes	$ 109	0	0	109
Repurchase of common stock (in shares)	(91,000)
Repurchase of common stock	$ (1,010)	0	0	$ (1,010)
Balance (in shares) at Dec. 31, 2019	18,137,000			18,137,167
Balance at Dec. 31, 2019	$ 71,311	100,566	2,601	$ 174,478
Net income	0	916	0	916
Other comprehensive income (loss), net of tax	0	0	3,346	3,346
Comprehensive income	0	0	0	4,262
Dividend declared on common stock	$ 0	(838)	0	(838)
Restricted stock granted, net (in shares)	11,000
Restricted stock granted, net	$ 0	0	0	0
Compensation expense associated with restricted stock, net of cash paid for shares surrendered for tax-withholding purposes	$ (14)	0	0	(14)
Repurchase of common stock (in shares)	(1,352,000)
Repurchase of common stock	$ (12,230)	0	0	(12,230)
Balance (in shares) at Mar. 31, 2020	16,796,000
Balance at Mar. 31, 2020	$ 59,067	100,644	5,947	$ 165,658
Balance (in shares) at Dec. 31, 2019	18,137,000			18,137,167
Balance at Dec. 31, 2019	$ 71,311	100,566	2,601	$ 174,478
Net income				9,092
Other comprehensive income (loss), net of tax				4,723
Comprehensive income				13,815
Stock compensation grants				$ 0
Balance (in shares) at Sep. 30, 2020	16,792,000			16,791,685
Balance at Sep. 30, 2020	$ 58,872	107,154	7,324	$ 173,350
Balance (in shares) at Mar. 31, 2020	16,796,000
Balance at Mar. 31, 2020	$ 59,067	100,644	5,947	165,658
Net income	0	3,847	0	3,847
Other comprehensive income (loss), net of tax	0	0	1,201	1,201
Comprehensive income	0	0	0	5,048
Dividend declared on common stock	0	(833)	0	(833)
Compensation expense associated with restricted stock, net of cash paid for shares surrendered for tax-withholding purposes	$ 105	0	0	105
Repurchase of common stock (in shares)	(57,000)
Repurchase of common stock	$ (423)	0	0	(423)
Balance (in shares) at Jun. 30, 2020	16,739,000
Balance at Jun. 30, 2020	$ 58,749	103,658	7,148	169,555
Net income	0	4,329	0	4,329
Other comprehensive income (loss), net of tax	0	0	176	176
Comprehensive income	0	0	0	4,505
Dividend declared on common stock	$ 0	(833)	0	(833)
Restricted stock granted, net (in shares)	53,000
Restricted stock granted, net	$ 0	0	0	0
Compensation expense associated with restricted stock, net of cash paid for shares surrendered for tax-withholding purposes	$ 123	0	0	$ 123
Balance (in shares) at Sep. 30, 2020	16,792,000			16,791,685
Balance at Sep. 30, 2020	$ 58,872	$ 107,154	$ 7,324	$ 173,350