Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Securities available for sale, amortized cost (in Dollars)	$ 564,391	$ 509,276
Preferred stock, par value (in Dollars per share)	$ 0	$ 0
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in Dollars per share)	$ 0	$ 0
Common stock, shares authorized	40,000,000	20,000,000
Common stock, shares issued	14,919,351	14,744,684
Common stock, shares outstanding	14,919,351	14,744,684