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Note D - Inventories (Details Textual) - USD ($) | 1 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | ---
Jul. 31, 2019 | Sep. 30, 2019 | Dec. 31, 2019 | Dec. 31, 2018
Inventory Valuation Reserves, Ending Balance |  |  | $ 768,000 | $ 763,000
Milestone China [Member] |  |  |  |
Contract with Customer, Asset, Allowance for Credit Loss, Recovery | $ 151,000 | $ 151,000 |  |
Slow Moving Medical Finished Goods [Member] |  |  |  |
Inventory Valuation Reserves, Ending Balance |  |  | 450,000 | 454,183
Slow Moving Dental Finished Goods [Member] |  |  |  |
Inventory Valuation Reserves, Ending Balance |  |  | $ 318,000 | $ 309,196

X
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