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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares
6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Statement of Stockholders' Equity [Abstract]    
Cash dividends declared on common stock (in Dollars per share) $ 0.150 $ 0.150
Exercise of stock options, shares 10,846 36,135
Restricted stock and performance units grants, shares 56,164 75,520