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Note M - Segment and Geographic Data
 12 Months Ended
Dec. 31, 2019
Notes to Financial Statements  
Product Sales and Significant Customers and Vendors Disclosure [Text Block]
NOTE M — SEGMENT AND GEOGRAPHIC DATA
        
We conduct our business through
two
reportable segments:  dental and medical. These segments offer different products and services to different customer base. The following tables present information about our reportable and operating segments:
 
   
Years Ended December 31,
  
Sales
            
Net Sales:
  
2019
    
2018
  
Dental
   $
8,336,901
     $
9,502,276
  
Medical
    
37,600
      
119,800
  
Total net sales
   $
8,374,501
     $
9,622,076
  
 
Operating Income (Loss):
  
2019
    
2018
  
Dental
   $
2,775,716
     $
1,373,178
  
Medical
    
(2,350,103
 )    
(2,611,231
 )
Corporate
    
(4,424,606
 )    
(6,761,282
 )
Total operating loss
   $
(3,998,993
 )   $
(7,999,335
 )
 
Depreciation and Amortization:
  
2019
    
2018
  
Dental
   $
15,793
     $
16,474
  
Medical
    
8,392
      
24,492
  
Corporate
    
76,323
      
840,319
  
Total depreciation and amortization
   $
100,508
     $
881,285
  
 
Income (loss) before taxes and equity in earnings of affiliates:
  
2019
    
2018
  
Dental
   $
2,774,332
     $
1,363,662
  
Medical
    
(2,353,194
 )    
(2,704,630
 )
Corporate
    
(8,064,576
 )    
(6,658,152
 )
Total loss before taxes and equity in earnings of affiliate
   $
(7,643,438
 )   $
(7,999,120
 )
 
 
Total Assets
  
2019
    
2018
  
Dental
   $
5,008,324
     $
5,169,944
  
Medical
    
590,727
      
328,208
  
Corporate
    
957,238
      
902,816
  
Total loss before taxes and equity in earnings of affiliate
   $
6,556,289
     $
6,400,968
  
 
The following table presents information about our operations by geographic area as
December 31, 2019 
and
2018.
  Net sales by geographic area are based on the respective locations of our subsidiaries
 
Total Product Sales-Dental
  
2019
    
2018
  
Domestic-US and Canada
   $
4,512,904
     $
4,798,706
  
International Rest of World
    
3,665,347
      
3,803,570
  
International-China
    
158,650
      
900,000
  
Total Product Sales-Dental
   $
8,336,901
     $
9,502,276
  
Total Product Sales-Medical
      
 
      
 
Domestic-US and Canada
   $
13,700
     $
32,500
  
International Rest of World
    
23,900
      
87,300
  
International-China
    
-
      
-
  
Total Product Sales-Medical
   $
37,600
     $
119,800
  
                 
Domestic-US and Canada
   $
4,526,604
     $
4,831,206
  
International Rest of World
    
3,689,247
      
3,890,870
  
International-China
    
158,650
      
900,000
  
Total
   $
8,374,501
     $
9,622,076