XML 38 R24.htm IDEA: XBRL DOCUMENT v3.20.2
Inventories (Tables)
6 Months Ended
Jun. 30, 2020
Inventory Disclosure [Abstract]  
Schedule of Inventories

Inventories consisted of the following at June 30, 2020 and December 31, 2019:

 

    June 30, 2020     December 31, 2019  
Raw material and component parts   $ 2,575,710     $ 4,481,611  
Work-in-process     30,679       35,858  
Finished goods     4,146,308       4,906,956  
                 
Subtotal     6,752,697       9,424,425  
Reserve for excess and obsolete inventory     (2,000,412 )     (4,144,013 )
                 
Total   $ 4,752,285     $ 5,280,412