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7. Long Term Debt (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
May 03, 2015
7. Long Term Debt (Details) [Line Items]  
Line of Credit Facility, Current Borrowing Capacity $ 13.5us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
Line of Credit Facility, Maximum Borrowing Capacity 15.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Line of Credit Facility, Expiration Date Jul. 31, 2018
Standby Letters of Credit [Member]  
7. Long Term Debt (Details) [Line Items]  
Letters of Credit Outstanding, Amount $ 1.5us-gaap_LettersOfCreditOutstandingAmount
/ us-gaap_CreditFacilityAxis
= us-gaap_StandbyLettersOfCreditMember