Note 1 - Summary of Significant Accounting Policies (Details Textual)	3 Months Ended		6 Months Ended
	Jun. 30, 2019 USD ($)	Jul. 01, 2018 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)
Accounts Receivable, after Allowance for Credit Loss, Current, Total	$ 12,500,000		$ 12,500,000
Accounts Receivable, Allowance for Credit Loss, Current	541,000		541,000
Other Accrued Liabilities, Current	646,000		$ 646,000	$ 483,000
Number of Operating Segments			1
Cost of Goods and Services Sold, Total	$ 11,391,000	$ 11,332,000
Estimated Effective Income Tax Rate Reconciliation, Continuing Operations, Before Discrete Changes, Percent	24.30%	24.00%
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions	$ 11,000	$ 3,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense, Total	26,000	25,000
Tax Adjustments, Settlements, and Unusual Provisions	(232,000)
Interest Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability	(78,000)
Income Tax Expense (Benefit), Reserve for Unrecognized Tax Benefits, Net Discrete Charge	$ 2,000	$ (5,000)
Estimated Effective Income Tax Rate Reconciliation, Percent	5.00%	23.30%
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
Royalty [Member]
Cost of Goods and Services Sold, Total	$ 881,000	$ 974,000
Other Accrued Liabilities [Member] | Up-front Payment Arrangement [Member]
Deferred Revenue, Current, Total	180,000		$ 180,000
Other Accrued Liabilities [Member] | Customer Returns [Member]
Deferred Revenue, Current, Total	16,000		16,000
Other Accrued Liabilities [Member] | Store Credits and Gift Certificates [Member]
Deferred Revenue, Current, Total	11,000		11,000
Receivable Due from Factor [Member]
Accounts Receivable, after Allowance for Credit Loss, Current, Total	11,400,000		11,400,000
Negative Balance Outstanding Under Revolving Line of Credit [Member]
Accounts Receivable, after Allowance for Credit Loss, Current, Total	3,400,000		3,400,000
Receivable from Factor, and Negative Balance on Revolving Line of Credit [Member]
Accounts Receivable, after Allowance for Credit Loss, Current, Total	14,800,000		$ 14,800,000
Selling, General and Administrative Expenses [Member]
Advertising Expense	$ 284,000	$ 325,000