Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Inventories (Details Textual)

v3.20.2
Note 4 - Inventories (Details Textual) - USD ($)
3 Months Ended
Jun. 30, 2020
Sep. 30, 2020
Dec. 31, 2019
Slow Moving Medical Finished Goods [Member]      
Inventory Valuation Reserves, Ending Balance   $ 450,000 $ 450,000
Slow Moving Dental Finished Goods [Member]      
Inventory Valuation Reserves, Ending Balance   $ 7,000 $ 318,000
Inventory Write-down $ 311,000