CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
ASSETS
Investment securities available for sale, amortized cost	$ 245,460	$ 256,920
Loans, allowance for loan losses	$ 25,800	$ 24,020
STOCKHOLDERS' EQUITY
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, authorized (in shares)	20,000,000	20,000,000
Common stock, issued (in shares)	10,182,064	10,177,854
Treasury stock at cost (in shares)	817,453	797,422