CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)	Mar. 31, 2016	Dec. 31, 2015
CONSOLIDATED BALANCE SHEETS
Loans, allowance for loan losses (in dollars)	$ 21,079,000	$ 22,020,000
Preferred stock, par value	$ 0	$ 0
Preferred stock, Authorized shares	400,000	400,000
Preferred stock, Issued shares	0	0
Preferred stock, Outstanding shares	0	0
Preferred stock, Aggregate liquidation preference (in dollars)	$ 0.00	$ 0.00
Common stock, stated value (in dollars per share)	$ 0.50	$ 0.50
Common stock, Authorized shares	100,000,000	100,000,000
Common stock, Issued shares	22,290,617	22,266,107
Common stock, Outstanding shares	21,627,452	21,579,575
Treasury stock, shares	663,165	686,532