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Note B - Inventories, Net (Details Textual) - USD ($)
Sep. 30, 2019
Jun. 30, 2019
Inventory Valuation Reserves, Ending Balance $ 1,320,000 $ 1,106,000
SR CarnoSyn Powder [Member]    
Inventory Valuation Reserves, Ending Balance $ 686,000 $ 686,000