Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Inventories (Details Textual)

v3.19.1
Note 4 - Inventories (Details Textual) - USD ($)
Mar. 31, 2019
Dec. 31, 2018
Inventory Valuation Reserves, Ending Balance $ 756,000 $ 763,000
Slow Moving Medical Finished Goods [Member]    
Inventory Valuation Reserves, Ending Balance 454,183 454,183
Slow Moving Dental Finished Goods [Member]    
Inventory Valuation Reserves, Ending Balance $ 302,073 $ 309,196