Quarterly report pursuant to Section 13 or 15(d)

Note 12 - Segment and Geographic Data - Summary by Reporting and Operating Segments (Details)

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Note 12 - Segment and Geographic Data - Summary by Reporting and Operating Segments (Details) - USD ($)
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Product sales, net $ 1,805,605 $ 3,688,988  
Operating Income (Loss) (2,001,668) (525,932)  
Depreciation and Amortization 264,991 34,542  
Income before taxes and equity in earnings of affiliates: (2,000,704) (526,383)  
Total assets 14,352,140 15,628,787 $ 15,628,787
Corporate, Non-Segment [Member]      
Operating Income (Loss) (1,650,451) (1,177,237)  
Depreciation and Amortization 243,973 20,714  
Income before taxes and equity in earnings of affiliates: (1,651,572) (1,177,686)  
Total assets 43,814,100 4,718,130  
Dental Segment [Member] | Operating Segments [Member]      
Product sales, net 1,769,105 3,688,988  
Operating Income (Loss) 357,165 1,275,631  
Depreciation and Amortization 4,141 4,468  
Income before taxes and equity in earnings of affiliates: 359,822 1,276,099  
Total assets 9,302,960 10,255,144  
Medical Segment [Member] | Operating Segments [Member]      
Product sales, net 36,500  
Operating Income (Loss) (708,382) (624,326)  
Depreciation and Amortization 16,877 9,360  
Income before taxes and equity in earnings of affiliates: (708,954) (624,796)  
Total assets $ 667,770 $ 655,513