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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS EQUITY (USD $)
In Thousands
Total
Common Stock [Member]
Additional Paid-in Capital [Member]
Treasury Stock [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Beginning balances at Jan. 31, 2011 $ 94,715 $ 109 $ 77,419 $ (4,843) $ 14,976 $ 7,054
Beginning balances, shares at Jan. 31, 2011   10,872        
Net income 24,321       24,321  
Foreign currency translation 150         150
Issuance of common stock upon exercise of options 2,822 3 2,819      
Issuance of common stock upon exercise of options, shares   344        
Stock offering 31,028 23 31,005      
Stock offering, shares   2,300        
Restricted stock issued 303 1 302      
Restricted stock issued, shares   40        
Restricted stock forfeited for taxes (14)     (14)    
Tax expense (benefit) from exercise of stock options and vesting of restricted stock 778   778      
Stock-based compensation 1,331   1,331      
Ending balances at Jan. 31, 2012 155,434 136 113,654 (4,857) 39,297 7,204
Ending balances, shares at Jan. 31, 2012   13,556        
Net income 17,051       17,051  
Foreign currency translation 977         977
Issuance of common stock upon exercise of options 332 2 330      
Issuance of common stock upon exercise of options, shares   158        
Restricted stock issued 516   516      
Restricted stock issued, shares   49        
Restricted stock forfeited for taxes (3)     (3)    
Tax expense (benefit) from exercise of stock options and vesting of restricted stock 420   420      
Stock-based compensation 1,586   1,586      
Ending balances at Jan. 31, 2013 176,313 138 116,506 (4,860) 56,348 8,181
Ending balances, shares at Jan. 31, 2013   13,763        
Net income 4,768       4,768  
Foreign currency translation (10,069)         (10,069)
Issuance of common stock upon exercise of options 513 1 512      
Issuance of common stock upon exercise of options, shares 91 91        
Restricted stock issued                  
Restricted stock issued, shares   53        
Restricted stock forfeited for taxes (15)     (15)    
Tax expense (benefit) from exercise of stock options and vesting of restricted stock (5)   (5)      
Purchase of common stock (2,200)     (2,200)    
Purchase of common stock , shares             
Stock-based compensation 1,143   1,143      
Ending balances at Jan. 31, 2014 $ 170,448 $ 139 $ 118,156 $ (7,075) $ 61,116 $ (1,888)
Ending balances, shares at Jan. 31, 2014   13,907