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CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY (USD $)
In Thousands, unless otherwise specified
Total
Common Stock
Additional Paid-In Capital
Retained Earnings
Balance at Dec. 31, 2008 $ 155,359 $ 197 $ 141,159 $ 14,003
Increase (Decrease) in Stockholders Equity        
Net income 17,235     17,235
Stock issued under compensation plans, net 351 1 350  
Excess tax benefit from stock-based awards 247   247  
Stock-based compensation expense 923   923  
Balance at Dec. 31, 2009 174,115 198 142,679 31,238
Increase (Decrease) in Stockholders Equity        
Net income 16,122     16,122
Stock issued under compensation plans, net 671 2 669  
Excess tax benefit from stock-based awards 198   198  
Stock-based compensation expense 1,603   1,603  
Balance at Dec. 31, 2010 192,709 200 145,149 47,360
Increase (Decrease) in Stockholders Equity        
Net income 18,298     18,298
Stock issued under compensation plans, net 1,290 3 1,287  
Excess tax benefit from stock-based awards 1,266   1,266  
Stock-based compensation expense 2,130   2,130  
Stock issued - other 45   45  
Balance at Dec. 31, 2011 $ 215,738 $ 203 $ 149,877 $ 65,658