Note B - Inventories (Details Textual) - USD ($)	Jun. 30, 2019	Jun. 30, 2018
Inventory Valuation Reserves, Ending Balance	$ 1,106,000	$ 372,000
SR CarnoSyn Powder [Member]
Inventory Valuation Reserves, Ending Balance	$ 686,000

Amount of valuation reserve for inventory.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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