Quarterly report pursuant to Section 13 or 15(d)

Warranty Provision (Details)

v3.19.2
Warranty Provision (Details) - USD ($)
3 Months Ended 12 Months Ended
Jun. 30, 2019
Mar. 31, 2019
Product Warranty Accrual, Balance Sheet Classification [Abstract]    
Balance, beginning of year $ 121,345
Provision for warranty 75,774 121,345
Balance, end of year $ 197,119 $ 121,345