XML 20 R9.htm IDEA: XBRL DOCUMENT v3.10.0.1
Note 4 - Inventory
9 Months Ended
Sep. 30, 2018
Notes to Financial Statements  
Inventory Disclosure [Text Block]
4.
  INVENTORY

Inventory is valued at the lower of cost (
first
-in,
first
-out) or market and consists of:
 
   
September
30,
2018
   
December 31,
2017
 
                 
Raw materials and component parts
  $
2,064,573
    $
2,637,138
 
Work-in-process
   
1,419,666
     
523,644
 
Finished products
   
1,861,375
     
1,200,204
 
Total Inventory
  $
5,345,614
     
4,360,986
 
Less: inventory reserves
   
203,092
     
457,505
 
Net Inventory
  $
5,142,522
    $
3,903,481