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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (unaudited) - 3 months ended Mar. 31, 2016 - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid - in Capital
Treasury Stock
Accumulated Deficit
Balance, beginning of period at Dec. 31, 2015 $ 107,988 $ 109 $ 163,133 $ (17,124) $ (38,130)
Balance (in shares) at Dec. 31, 2015   109,467,416   2,105,945  
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Share-based compensation expense 4,615   4,615    
Exercise of stock options $ 1,138   (3,259) $ 4,397  
Exercise of stock options (in shares) 608,717 72,004   (536,713)  
Issuance of restricted stock     (12,750) $ 12,750  
Issuance of restricted stock (in shares)       (1,576,579)  
Restricted stock shares cancelled/forfeited     378 $ (378)  
Restricted stock shares cancelled/forfeited (in shares)       45,263  
Shares issued for services performed $ 173   4 $ 169  
Shares issued for services performed (in shares) 20,406     (20,406)  
Stock repurchase $ (3,530)     $ (3,530)  
Shares repurchased for tax withholding (684)     $ (684)  
Shares repurchased for tax withholding (in shares)       81,594  
Shares issued in conjunction with acquisition $ 3,346   (462) $ 3,808  
Shares issued in conjunction with acquisition (in shares) 441,009     (441,009)  
Stock repurchase (in shares) 415,252     415,252  
Net income $ 1,197       1,197
Balance, end of period at Mar. 31, 2016 $ 114,243 $ 109 $ 151,659 $ (592) $ (36,933)
Balance (in shares) at Mar. 31, 2016   109,539,420   73,347