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Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical)

v3.21.2
CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($)
Oct. 31, 2021
Apr. 30, 2021
Oct. 31, 2020
Apr. 30, 2020
Statement of Cash Flows [Abstract] Ìý Ìý Ìý Ìý
Cash and cash equivalents $ 10,985,131 $ 12,472,082 Ìý Ìý
Restricted cash 1,433,397 1,193,997 Ìý Ìý
Total cash, cash equivalents and restricted cash $ 12,418,528 $ 13,666,079 $ 16,882,328 $ 17,906,765