XML 32 R20.htm IDEA: XBRL DOCUMENT v3.10.0.1
Note 3 - Inventory (Tables)
6 Months Ended
Jun. 30, 2018
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
June 30,
2018
   
December 31,
2017
 
Raw materials
  $
766,709
    $
582,816
 
Work in progress
   
556,054
     
453,890
 
Finished goods
   
799,118
     
810,040
 
Total
  $
2,121,881
    $
1,846,746