Quarterly report pursuant to Section 13 or 15(d)

Note 1 - Summary of Significant Accounting Policies (Details Textual)

v3.19.3
Note 1 - Summary of Significant Accounting Policies (Details Textual) - USD ($)
 3 Months Ended 6 Months Ended
Sep. 29, 2019
Sep. 30, 2018
Sep. 29, 2019
Sep. 30, 2018
Mar. 31, 2019
Accounts Receivable, after Allowance for Credit Loss, Current, Total $ 14,200,000   $ 14,200,000    
Accounts Receivable, Allowance for Credit Loss, Current 589,000   589,000    
Other Accrued Liabilities, Current 196,000   $ 196,000   $ 483,000
Number of Operating Segments     1    
Cost of Goods and Services Sold, Total 12,691,000 $ 14,166,000 $ 24,082,000 $ 25,498,000  
Estimated Effective Income Tax Rate Reconciliation, Continuing Operations, Before Discrete Changes, Percent     24.00% 23.40%  
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions 31,000 56,000 $ 42,000 $ 59,000  
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense, Total 18,000 21,000 29,000 46,000  
Tax Adjustments, Settlements, and Unusual Provisions     (232,000)    
Interest Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability     (78,000)    
Discrete Income Tax Charge, Shortfall from Vesting of Non-vested Stock 4,000 17,000 $ 6,000 $ 12,000  
Effective Income Tax Rate Reconciliation, Percent, Total     18.80% 26.00%  
Minimum [Member]          
Property, Plant and Equipment, Useful Life     3 years    
Finite-Lived Intangible Asset, Useful Life     5 years    
Maximum [Member]          
Property, Plant and Equipment, Useful Life     8 years    
Finite-Lived Intangible Asset, Useful Life     20 years    
Unredeemed Store Credits and Gift Certificates [Member]          
Deferred Revenue, Current, Total 14,000   $ 14,000    
Royalty [Member]          
Cost of Goods and Services Sold, Total 1,300,000 1,400,000 2,200,000 $ 2,400,000  
Other Accrued Liabilities [Member] | Up-front Payment Arrangement [Member]          
Deferred Revenue, Current, Total 125,000   125,000    
Other Accrued Liabilities [Member] | Customer Returns [Member]          
Deferred Revenue, Current, Total 14,000   14,000    
Receivable Due from Factor [Member]          
Accounts Receivable, after Allowance for Credit Loss, Current, Total 12,700,000   12,700,000    
Negative Balance Outstanding Under Revolving Line of Credit [Member]          
Accounts Receivable, after Allowance for Credit Loss, Current, Total 132,000   132,000    
Receivable from Factor, and Negative Balance on Revolving Line of Credit [Member]          
Accounts Receivable, after Allowance for Credit Loss, Current, Total 12,900,000   12,900,000    
Selling, General and Administrative Expenses [Member]          
Advertising Expense $ 260,000 $ 348,000 $ 544,000 $ 673,000