Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Inventories (Details Textual)

v3.21.2
Note 4 - Inventories (Details Textual) - USD ($)
Jun. 30, 2021
Dec. 31, 2020
Inventory Valuation Reserves, Ending Balance $ 450,000 $ 453,000
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   $ 3,000