Quarterly report pursuant to Section 13 or 15(d)

Warranty Provision (Details)

v3.19.3
Warranty Provision (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Sep. 30, 2019
Sep. 30, 2019
Mar. 31, 2019
Product Warranty Accrual, Balance Sheet Classification [Abstract]      
Balance, beginning of year   $ 121,345
Provision for warranty $ 1,162,879 1,238,653 121,345
Balance, end of year $ 1,359,998 $ 1,359,998 $ 121,345