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Note G - Economic Dependency (Details Textual) - Accounts Receivable [Member]
3 Months Ended 12 Months Ended
Sep. 30, 2019
Jun. 30, 2019
Customer Concentration Risk [Member]    
Number of Major Customers 4  
Customer Concentration Risk [Member] | Four Customers [Member]    
Concentration Risk, Percentage 79.60% 83.40%
Product Concentration Risk [Member] | Beta-alanine Raw Material [Member]    
Concentration Risk, Percentage 12.20% 8.00%