Quarterly report pursuant to Section 13 or 15(d)

Property and Equipment - Depreciation and Amortization Expense (Details)

v3.20.4
Property and Equipment - Depreciation and Amortization Expense (Details) - USD ($)
3 Months Ended 9 Months Ended
Jan. 31, 2021
Jan. 31, 2020
Jan. 31, 2021
Jan. 31, 2020
Property, Plant and Equipment [Abstract]        
Depreciation and amortization expense $ 525,018 $ 364,504 $ 1,519,536 $ 1,012,548
Software amortization expense $ 366,908 $ 265,146 $ 1,028,668 $ 728,395