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Quarterly report pursuant to Section 13 or 15(d)

Property and Equipment - Depreciation and Amortization Expense (Details)

v3.20.1
Property and Equipment - Depreciation and Amortization Expense (Details) - USD ($)
3 Months Ended 9 Months Ended
Jan. 31, 2020
Jan. 31, 2019
Jan. 31, 2020
Jan. 31, 2019
Property, Plant and Equipment [Abstract] Ìý Ìý Ìý Ìý
Depreciation and amortization expense $ 364,504 $ 263,045 $ 1,012,548 $ 703,886
Software amortization expense $ 265,146 $ 178,459 $ 728,395 $ 482,153