Note 17 - Stock-Based Compensation - Forfeited as Payment of Tax Withhold (Details) - Restricted Stock Units (RSUs) [Member] - shares	12 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2022
Number of RSUs vested (in shares)	454,284	464,985	508,368
Number of net RSU shares issued (in shares)	250,994	261,232	267,681
Number of RSU shares forfeited as payments of withholding amounts (in shares)	203,290	203,753	240,687