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Consolidated Statements of Changes in Shareholders' Equity (USD $)
In Thousands
Total
Common Stock
Additional Paid-In Capital
Retained Earnings
Treasury Stock
Accumulated Other Comprehensive Income
Balance at beginning of year at Jan. 31, 2011   $ 433 $ 36,586 $ 26,843 $ (9,840) $ 267
Net income 3,132     3,132    
Share-based compensation     208      
Tax benefit (expense) of employee stock options     306      
Shares issued to employee stock ownership plan         88  
Contribution of treasury shares to employee stock options plan     10      
Par value (proceeds) from the exercise of employee stock options   1 79      
Employee option exercise and buyback   14 775      
Dividends paid       (2,055)    
Purchase of common stock from related parties         (1,038)  
Other comprehensive loss (146)         (146)
Balance at end of year at Jan. 31, 2012 55,663 448 37,964 27,920 (10,790) 121
Net income 10,767     10,767    
Share-based compensation     480      
Tax benefit (expense) of employee stock options     (68)      
Shares issued to employee stock ownership plan         70  
Contribution of treasury shares to employee stock options plan     29      
Par value (proceeds) from the exercise of employee stock options   2 233      
Employee option exercise and buyback   2 148      
Dividends paid       (2,595)    
Purchase of treasury stock (770)       (770)  
Purchase of common stock from related parties         (176)  
Other comprehensive loss 52         52
Balance at end of year at Jan. 31, 2013 $ 63,837 $ 452 $ 38,786 $ 36,092 $ (11,666) $ 173