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

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