XML 66 R55.htm IDEA: XBRL DOCUMENT v3.19.3
13. ACCRUED WARRANTY (Details) - USD ($)
9 Months Ended 12 Months Ended
Sep. 30, 2019
Dec. 31, 2018
Less: Accumulated Amortization    
Beginning accrued warranty costs $ 30,000 $ 5,000
Provision for product warranty costs 1,839 47,454
Settlement of warranty claims (1,839) (22,454)
Ending accrued warranty costs $ 30,000 $ 30,000