v3.25.1
Note 14 - Sales and Service Revenue and Cost of Sales and Services - Breakdown of Major Customers (Details) - Customer Concentration Risk [Member] - Revenue from Contract with Customer Benchmark [Member]
3 Months Ended 9 Months Ended
Apr. 30, 2025
Apr. 30, 2024
Apr. 30, 2025
Apr. 30, 2024
Customer A [Member]        
Concentration Risk, Percentage 0.00% 0.00% 50.00% 0.00%
Customer B [Member]        
Concentration Risk, Percentage 0.00% 0.00% 24.00% 0.00%
Customer C [Member]        
Concentration Risk, Percentage 0.00% 0.00% 14.00% 0.00%
Customer D [Member]        
Concentration Risk, Percentage 0.00% 0.00% 12.00% 0.00%
Customer E [Member]        
Concentration Risk, Percentage 0.00% 0.00% 0.00% 100.00%
All Customers [Member]        
Concentration Risk, Percentage 0.00% 0.00% 100.00% 100.00%