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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $)
In Thousands, except Share data, unless otherwise specified
Total
Common Stock
Additional Paid-In Capital
Retained Earnings
Balance at Dec. 31, 2010 $ 192,709 $ 200 $ 145,149 $ 47,360
Balance (in shares) at Dec. 31, 2010   20,007,000    
Increase (Decrease) in Stockholders Equity        
Net income 18,298     18,298
Stock issued under compensation plans, net 1,290 3 1,287  
Stock issued under compensation plans, net (in shares)   396,000    
Tax benefit from stock-based awards 1,266   1,266  
Stock-based compensation expense 2,130   2,130  
Stock issued - other 45   45  
Stock issued - other (in shares)   2,000    
Balance at Dec. 31, 2011 215,738 203 149,877 65,658
Balance (in shares) at Dec. 31, 2011   20,405,000    
Increase (Decrease) in Stockholders Equity        
Net income 34,262     34,262
Stock issued under compensation plans, net 1,309 3 1,306  
Stock issued under compensation plans, net (in shares)   340,000    
Tax benefit from stock-based awards 419   419  
Stock-based compensation expense 2,924   2,924  
Stock issued - other 38   38  
Stock issued - other (in shares)   2,000    
Balance at Dec. 31, 2012 254,690 206 154,564 99,920
Balance (in shares) at Dec. 31, 2012 20,747,161 20,747,000    
Increase (Decrease) in Stockholders Equity        
Net income 34,759     34,759
Stock issued under compensation plans, net 1,762 4 1,758  
Stock issued under compensation plans, net (in shares)   473,000    
Tax benefit from stock-based awards 1,305   1,305  
Stock-based compensation expense 3,519   3,519  
Stock issued - other 56   56  
Stock issued - other (in shares)   3,000    
Balance at Dec. 31, 2013 $ 296,091 $ 210 $ 161,202 $ 134,679
Balance (in shares) at Dec. 31, 2013 21,223,076 21,223,000