Note 10 - Disclosure of Credit Risk of Financial Instruments With Off-balance Sheet Risk (Details Textual)	12 Months Ended
	Apr. 30, 2026	Apr. 30, 2025	Apr. 30, 2024
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| One Single Customer [Member]
Concentration Risk, Percentage	28.70%	29.60%	32.20%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.