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Note A - Basis of Presentation and Summary of Significant Accounting Policies (Details Textual) $ in Thousands | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2020 USD ($) shares | Dec. 31, 2019 USD ($) shares | Dec. 31, 2020 USD ($) shares | Dec. 31, 2019 USD ($) shares | Jul. 16, 2020 USD ($) | Jun. 30, 2020 USD ($)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) |  | 0 |  | 0 |  |
Sales, Royalty and Licensing Revenue | $ | $ 2,800 | $ 4,300 | $ 5,400 | $ 7,500 |  |
Royalty Expense | $ | $ 100 | $ 200 | $ 300 | $ 400 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period (in shares) | 100,000 | 0 | 100,000 | 0 |  |
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 |  |
Deferred Compensation Arrangement with Individual, Cash Award Granted, Amount | $ |  |  |  |  | $ 1,000 |
Deferred Compensation Arrangement with Individual, Number of Payments |  |  |  |  | 3 |
Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |
Fair Value, Net Asset (Liability), Total | $ | $ 0 |  | $ 0 |  |  | $ 0
Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |
Fair Value, Net Asset (Liability), Total | $ | 0 |  | 0 |  |  | $ 0
Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |
Foreign Currency Contracts, Liability, Fair Value Disclosure | $ | $ 3,600 |  | $ 3,600 |  |  |
Restricted Stock [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | 0 | 5,000 |  | 5,000 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period (in shares) | 0 | 0 | 0 | 15,000 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares) |  |  | 0 |  |  |
Share-based Payment Arrangement, Expense | $ | $ 300 | $ 500 | $ 700 | $ 900 |  |
Juice Plus + [Member] |  |  |  |  |  |
Sales Discounts, Cash | $ | $ 400 | $ 400 | $ 800 | $ 800 |  |
Share-based Payment Arrangement, Option [Member] |  |  |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) |  |  | 90,000 |  |  |
Restricted Stock 1 [Member] |  |  |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) |  |  | 116,658 |  |  |

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