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7. Long Term Debt (Details)
$ in Millions
9 Months Ended
Nov. 01, 2015
USD ($)
7. Long Term Debt (Details) [Line Items]  
Line of Credit Facility, Current Borrowing Capacity $ 13.3
Line of Credit Facility, Maximum Borrowing Capacity $ 15.0
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 $ 1.7