Note A - Basis of Presentation and Summary of Significant Accounting Policies (Details Textual) $ in Thousands	3 Months Ended
	Sep. 30, 2020 USD ($) shares	Sep. 30, 2019 USD ($) shares	Jul. 16, 2020 USD ($)	Jun. 30, 2020 USD ($)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | shares		0
Sales, Royalty and Licensing Revenue | $	$ 2,700	$ 3,200
Royalty Expense | $	$ 100	$ 200
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares) | shares	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period (in shares) | shares	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period (in shares) | shares	0	0
Deferred Compensation Arrangement with Individual, Cash Award Granted, Amount | $			$ 1,000
Deferred Compensation Arrangement with Individual, Number of Payments			3
Foreign Currency Contract, Asset, Fair Value Disclosure | $	$ 2,400			$ 300
Fair Value, Inputs, Level 1 [Member]
Fair Value, Net Asset (Liability), Total | $	0			0
Fair Value, Inputs, Level 3 [Member]
Fair Value, Net Asset (Liability), Total | $	$ 0			$ 0
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | shares	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period (in shares) | shares	0	15,000
Share-based Payment Arrangement, Expense | $	$ 400	$ 400
Juice Plus + [Member]
Sales Discounts, Cash | $	$ 400	$ 400
Share-based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | shares	90,000
Restricted Stock 1 [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | shares	116,658