Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Consolidated Balance Sheets [Abstract]
Held-to-maturity, at fair value	$ 9,372	$ 11,637
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, shares authorized (in shares)	40,000,000	40,000,000
Common stock, shares issued (in shares)	24,129,266	23,699,107
Common stock, shares outstanding (in shares)	24,129,266	23,699,107