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Income Taxes (Details Textual) (USD $)
3 Months Ended 9 Months Ended
Oct. 27, 2012
Oct. 29, 2011
Oct. 27, 2012
Oct. 29, 2011
Jan. 31, 2012
Income Taxes (Textual) [Abstract]          
Income tax expense $ 832,388 $ 319,428 $ 1,470,974 $ 1,069,688  
Expense includes in income tax     1,773,000 1,183,000  
Pretax income and benefit     302,000 113,000  
Cumulative unrecognized tax benefits $ 533,354   $ 533,354   $ 779,543