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Consolidated Statements of Stockholders' Equity (Parenthetical) (Unaudited)
3 Months Ended
Mar. 31, 2016
$ / shares
shares
COMMON STOCK  
Stock compensation expense, unvested shares 383,222
RETAINED EARNINGS  
Cash dividend declared per share of common stock | $ / shares $ 0.04
TREASURY STOCK, AT COST  
Treasury stock repurchased 19,900