Stockholders' Equity - Schedule of Share-Based Compensation (Details) - USD ($)	3 Months Ended
	Jul. 31, 2022	Jul. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	$ 46,330	$ 542,712
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	41,053	446,777
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	0	10,527
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	$ 5,277	$ 85,408