Consolidated Statements of Shareholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Number of common shares issued	0	499,665	819,384
Stock Repurchased and Retired During Period, Shares	0	100,000
Common Stock, Dividends, Per Share, Declared	$ 0.40	$ 0.32
Purchase of unallocated common stock held by ESOP, number of shares	0	208,333
Stock Issued During Period, Shares, Employee Stock Ownership Plan	35,283	26,511
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	24,740	6,560	10,160
Series 2009 Preferred Stock [Member]
Preferred stock, dividends per share	$ 0	$ 0	$ 80
Series 2011 Preferred Stock [Member]
Preferred stock, dividends per share	$ 0	$ 0	$ 40