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7. Long Term Debt (Details) - Aug. 02, 2015 - USD ($)
$ in Millions
Total
7. Long Term Debt (Details) [Line Items]  
Line of Credit Facility, Current Borrowing Capacity $ 13.5
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 $ 1.5