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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY    
Dividends paid per share (in dollars per share) $ 0.0500 $ 0.0475
Common stock held by ESOP allocated or committed to be allocated (in shares) 1,810 1,810
Restricted stock granted in connection with equity incentive plan (in shares)   16,500
Purchased stock related to vested restricted stock (in shares) 4,670 3,818