Note A - Basis of Presentation and Summary of Significant Accounting Policies (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Jun. 30, 2021
Contract with Customer, Refund Liability, Total	$ 0		$ 0
Sales, Royalty and Licensing Revenue	4,100,000	$ 2,800,000	8,800,000	$ 5,400,000
Royalty Expense	$ 200,000	$ 100,000	$ 400,000	$ 300,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)	0	0	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period (in shares)	0	100,000	0	100,000
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period (in shares)		30,442		30,442
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period (in shares)	0	0	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance (in shares)	0		0
Deferred Compensation Arrangement with Individual, Cash Award Granted, Amount	$ 0	$ 1,000,000.0	$ 0	$ 1,000,000.0
Deferred Compensation Arrangement with Individual, Cash Award Forfeited, Amount	0	$ 0	191,000	$ 0
Fair Value, Inputs, Level 1 [Member]
Fair Value, Net Asset (Liability), Total	$ 0		$ 0		$ 0
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)	0	0	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period (in shares)	2,100	0	18,432	0
Juice Plus + [Member]
Sales Discounts, Cash	$ 300,000	$ 400,000	$ 700,000	$ 800,000
Share-based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	0	0	0	90,000
Restricted Stock 1 [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	0	0	0	116,658