Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Consolidated Balance Sheets
Securities held to maturity, fair value (in dollars)	$ 165,606	$ 179,885
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	2,000,000	2,000,000
Preferred stock, shares issued	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	40,000,000	40,000,000
Common stock, shares issued	19,798,989	19,719,575
Common stock, shares outstanding	19,785,889	19,709,360
Treasury Stock, shares	13,100	10,215