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Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Stock Options (Details)

v3.22.2
Stockholders' Equity - Stock Options (Details) - USD ($)
12 Months Ended
Apr. 30, 2022
Apr. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Ìý Ìý
Unrecognized compensation costs $ 5,446 Ìý
Stock Incentive Plan and Stock Option Grants to Employees and Directors Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Ìý Ìý
Granted (in shares) 0 0
Stock options Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Ìý Ìý
Weighted average recognition period 5 months 1 day Ìý