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Note G - Economic Dependency (Details Textual) - Product Concentration Risk [Member] - Accounts Receivable [Member]
3 Months Ended 12 Months Ended
Dec. 31, 2019
Jun. 30, 2019
Number of Major Customers 3  
Beta-alanine Raw Material [Member]    
Concentration Risk, Percentage 16.10% 8.00%
Three Customers [Member]    
Concentration Risk, Percentage 77.10% 76.80%