Revenue Recognition (Narrative) (Details) - USD ($)	3 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Apr. 30, 2025	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2021
Revenue from Contract With Customer [Line Items]
Deferred revenue, revenue recognized	$ 1,564,389
Capitalized contract cost during period	19,026	$ 79,045
Capitalized contract cost, amortization	37,810	70,815
Capitalized contract cost	$ 208,066
Revenue recognition, anticipated benefit period	3 years 6 months
Capitalized costs for impairment revisit estimates used in recognizing costs for customer contract
Subsequent Event [Member]
Revenue from Contract With Customer [Line Items]
Revenue, remaining performance obligation, amount			$ 18,000	$ 93,950	$ 231,526	$ 494,050	$ 3,837,758