CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Shares outstanding			19,337,662
Common stock options exercised, shares			1,520
Issuance of shares for Employee Stock Purchase Plan, shares	8,564	9,127	18,740	15,490
Shares outstanding	19,456,312		19,456,312
Common Stock [Member]
Shares outstanding	19,445,363	18,921,114	19,337,662	18,619,634
Restricted stock units issued, shares	1,779	1,583	131,141	85,242
Restricted stock awards forfeitures, shares		(1,267)		(94,034)
Restricted stock units/awards repurchased on vesting to pay taxes, shares	(614)	(1,945)	(35,949)	(40,457)
Cash dividends declared on common stock, per share	$ 0.05	$ 0.05	$ 0.10	$ 0.10
Common stock options exercised, shares	1,220	4,533	1,520	10,683
Common stock options exercised, used to exercise, shares		833		2,374
Common stock options exercised, net of shares used to exercise, shares		3,700		8,309
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
Sales of shares (Dividend Reinvestment Program), shares		75,000		392,302
Issuance of shares for Employee Stock Purchase Plan, shares	8,564	9,127	18,740	15,490
Issuance of common stock for acquisition, shares			307	20,826
Shares outstanding	19,456,312	19,007,312	19,456,312	19,007,312