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9 - Leases (Details) - USD ($)
 3 Months Ended 9 Months Ended
Feb. 04, 2019
Nov. 03, 2019
Nov. 03, 2019
9 - Leases (Details) [Line Items]      
Operating Leases of Lessee, Contingent Rentals, Description of Variable Rate Basis one-month LIBOR plus 1.5%    
Operating Leases, Income Statement, Sublease Revenue   $ 130,000 $ 347,000
Description of Lessee Leasing Arrangements, Operating Leases   Our leases have remaining lease terms of less than one year to seven years, some of which include options to extend the leases for up to seven years. We have elected not to recognize ROU assets and lease liabilities that arise from short term leases for any class of underlying asset. Short term leases are leases with lease terms of 12 months or less with either (a) no renewal option or (b) a renewal option which we are not reasonably certain to exercise.  
Operating Lease, Weighted Average Remaining Lease Term   7 years 6 months 7 years 6 months
Operating Lease, Weighted Average Discount Rate, Percent   4.00% 4.00%
London Interbank Offered Rate (LIBOR) [Member]      
9 - Leases (Details) [Line Items]      
Operating Leases of Lessee, Contingent Rentals, Basis Spread on Variable Rate   1.50% 1.50%