Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Jun. 30, 2014	Mar. 31, 2014
Common cash dividends declared (in Dollars per share)	$ 0.04		$ 0.04
Common Stock [Member]
Proceeds from issuance of shares of common stock as a result of stock purchased under the Employee Stock Purchase Plan	8,558	5,679	8,361	6,189
Proceeds from issuance of shares of common stock as a result of stock options exercised	17,240	9,688	630	9,814
Exchange of shares of common stock in connection with restricted stock vested	630	3,272		10,300
Proceeds from issuance of common stock, net of issuance costs	3,680,000
Series F Noncumulative Perpetual Preferred Stock [Member] | Preferred Stock [Member]
Redemption of shares of Noncumulative Perpetual Preferred Stock			14,867	15,000