Consolidated Statements of Changes in Shareholders' Equity (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Common Stock [Member]
Options exercised (in shares)	226,275	21,500	500
Shares issued (in shares)	18,691,589		11,842,106
Offering costs	$ 825		$ 147
Options exercised (in shares)	226,275	21,500	500
Transfer from deferred compensation plan to treasury stock (in shares)			87,105