v2.4.0.6
Consolidated Statements of Changes in Stockholders' Equity (USD $)
In Thousands, except Share data
Total
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Beginning balance, value at Dec. 31, 2009 $ 220,496 $ 209 $ 168,993 $ 51,524 $ (230)
Beginning balance, shares at Dec. 31, 2009   20,959,285      
Issuance of common stock upon exercise of options, value 751 1 750    
Issuance of common stock upon exercise of options, shares 58,798 58,798      
Issuance of common stock, net of issuance costs, value 101,764 66 101,698    
Issuance of common stock, net of issuance costs, shares   6,612,500      
Issuance of common shares to directors for compensation, value 380   380    
Issuance of common shares to directors for compensation, shares   46,347      
Restricted stock issuance, net of cancellations, value   6 (6)    
Restricted stock issuance, net of cancellations, shares   560,870      
Share-based compensation expense 2,248   2,248    
Surrender of restricted shares for payment of income taxes, value (89)   (89)    
Surrender of restricted shares for payment of income taxes, shares   (10,910)      
Adjustment to additional paid-in capital for tax shortfall upon vesting of restricted shares (62)   (62)    
Net income 7,462     7,462  
Foreign currency transaction and translation adjustments, net of related income tax of $85 (4)       (4)
Ending balance, value at Dec. 31, 2010 332,946 282 273,912 58,986 (234)
Ending balance, shares at Dec. 31, 2010   28,226,890      
Issuance of common stock upon exercise of options, value 1,009 1 1,008    
Issuance of common stock upon exercise of options, shares 74,241 74,241      
Issuance of common stock, net of issuance costs, value 122,150 46 122,104    
Issuance of common stock, net of issuance costs, shares   4,600,000      
Issuance of common shares to directors for compensation, value 420   420    
Issuance of common shares to directors for compensation, shares   18,446      
Restricted stock issuance, net of cancellations, value   2 (2)    
Restricted stock issuance, net of cancellations, shares   205,475      
Share-based compensation expense 4,263   4,263    
Surrender of restricted shares for payment of income taxes, value (815)   (815)    
Surrender of restricted shares for payment of income taxes, shares   (31,458)      
Net income 7,242     7,242  
Foreign currency transaction and translation adjustments, net of related income tax of $85 234       234
Ending balance, value at Dec. 31, 2011 467,449 331 400,890 66,228  
Ending balance, shares at Dec. 31, 2011   33,093,594      
Issuance of common stock upon exercise of options, value 798 2 796    
Issuance of common stock upon exercise of options, shares 216,822 216,822      
Issuance of common stock, net of issuance costs, value 154,417 53 154,364    
Issuance of common stock, net of issuance costs, shares   5,325,000      
Issuance of common shares to directors for compensation, value 535   535    
Issuance of common shares to directors for compensation, shares   16,935      
Restricted stock issuance, net of cancellations, value   2 (2)    
Restricted stock issuance, net of cancellations, shares   293,382      
Share-based compensation expense 6,930   6,930    
Surrender of restricted shares for payment of income taxes, value (3,045)   (3,045)    
Surrender of restricted shares for payment of income taxes, shares   (116,365)      
Net income 6,384     6,384  
Ending balance, value at Dec. 31, 2012 $ 633,468 $ 388 $ 560,468 $ 72,612  
Ending balance, shares at Dec. 31, 2012   38,829,368