CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Shares outstanding	19,337,662
Common stock options exercised and related tax benefits, shares	18,660
Issuance of shares for Employee Stock Purchase Plan, shares	18,740	29,273	25,404
Share repurchase, share	(739,778)
Shares outstanding	18,926,810	19,337,662
Common Stock [Member]
Shares outstanding	19,337,662	18,619,634	17,257,995
Restricted stock units issued, shares	144,026	90,771	74,936
Restricted stock awards forfeitures, shares	(40,197)	(94,034)	(479)
Restricted stock repurchased on vesting to pay taxes, shares		(45,404)	(58,598)
Cash dividends declared on common stock, per share	$ 0.20	$ 0.20	$ 0.20
Common stock options exercised and related tax benefits, shares	18,660	23,148	50,473
Common stock options exercised, used to exercise, shares		2,374	8,764
Common stock options exercised, net of shares used to exercise, shares		20,774	41,709
Sales of shares (Dividend Reinvestment Program), shares		542,302	1,204,710
Issuance of shares for Employee Stock Purchase Plan, shares	18,740	29,273	25,404
Share repurchase, share	(739,778)
Issuance of shares for Employee's Savings and Investment plan, shares		34,449	30,123
Issuance of common stock for acquisition, shares	184,806	139,897	43,834
Exercise of warrants, shares	7,109
Exercise of warrants, used to exercise, shares	4,218
Exercise of warrants, net of shares used to exercise, shares	2,891
Shares outstanding	18,926,810	19,337,662	18,619,634