XML 25 R32.htm IDEA: XBRL DOCUMENT v3.19.3
13. ACCRUED WARRANTY (Tables)
9 Months Ended
Sep. 30, 2019
Less: Accumulated Amortization  
Warranty reserve activity
   

September 30,

2019

(Unaudited)

   

December 31,

2018

 
Beginning accrued warranty costs   $ 30,000     $ 5,000  
Provision for warranty expense     1,839       47,454  
Settlement of warranty claims     (1,839 )     (22,454 )
Ending accrued warranty costs   $ 30,000     $ 30,000