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Note G - Economic Dependency (Details Textual) $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 USD ($) | Jun. 30, 2020 USD ($)
Kaged Muscle LLC [Member] | Notes Receivable [Member] |  |
Accounts Receivable, after Allowance for Credit Loss, Total | $ 3.3 | $ 3.3
Product Concentration Risk [Member] | Accounts Receivable [Member] |  |
Number of Major Customers | 2 | 2
Concentration Risk, Percentage | 59.00% | 65.70%
Product Concentration Risk [Member] | Accounts Receivable [Member] | Beta-alanine Raw Material [Member] |  |
Concentration Risk, Percentage | 4.50% | 2.50%

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