Note 5 - Inventories (Tables)

6 Months Ended

Jun. 30, 2018

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	June 30, 2018		December 31, 2017
Dental finished goods, net	$	1,922,647	$	2,846,272
Medical finished goods, net		209,328		475,285
Component parts and other materials		178,355		57,652
Total	$	2,310,330	$	3,379,209