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10. Long-Term Debt (Details) - USD ($)
9 Months Ended
Oct. 28, 2018
Oct. 29, 2017
10. Long-Term Debt (Details) [Line Items]    
Repayments of Long-term Debt $ 15,679,000 $ 4,393,000
Revolving Credit Facility [Member]    
10. Long-Term Debt (Details) [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity 28,500,000  
Standby Letters of Credit [Member]    
10. Long-Term Debt (Details) [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity 1,500,000  
Unsecured Debt [Member] | Unsecured Term Loan [Member]    
10. Long-Term Debt (Details) [Line Items]    
Repayments of Long-term Debt 10,000,000  
Unsecured Debt [Member] | New Unsecured Term Loan [Member]    
10. Long-Term Debt (Details) [Line Items]    
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net 60,000  
Secured Debt [Member]    
10. Long-Term Debt (Details) [Line Items]    
Interest and Debt Expense $ 6,000