Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Allowance for loan losses	$ 14,547	$ 14,361
Preferred shares, no par value
Preferred shares, shares authorized	200,000	200,000
Common stock, no par value
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	8,655,324	8,591,542
Treasury stock, common shares	747,964	747,964
Series B Preferred Stock [Member]
Preferred shares, liquidation preference	$ 1,000	$ 1,000
Preferred shares, shares issued	23,911	24,072