XML 54 R43.htm IDEA: XBRL DOCUMENT v3.20.2
Schedule of Accrued Warranty (Details) - USD ($)
9 Months Ended 12 Months Ended
Sep. 30, 2020
Dec. 31, 2019
Guarantees and Product Warranties [Abstract]    
Warranty accrual, beginning of the fiscal period $ 141,697 $ 149,464
Accrual adjustment for product warranty 66,022 56,118
Payments made (27,672) (63,885)
Warranty accrual, end of the fiscal period $ 180,047 $ 141,697