v3.26.3
Note 3 - Summary of Significant Accounting Policies (Details Textual)
3 Months Ended
Jul. 31, 2026
USD ($)
Apr. 30, 2026
USD ($)
Inventory Valuation Reserves $ 337,455 $ 85,575
Inventory Write-Down Percentage, Carrying Value Less Than Threshold 80.00%  
Capitalized Cost, Software to be Sold, Leased, or Marketed, after Accumulated Amortization $ 989,689 715,191
Capitalized Cost, Software to be Sold, Leased, or Marketed, Amortization Expense 0  
Deferred Offering Costs 125,162 147,062
Contract with Customer, Liability $ 0 0
Number of Operating Segments 1  
Contract with Customer, Asset, after Allowance for Credit Loss $ 0 0
Revenue, Remaining Performance Obligation, Amount $ 0 $ 0
Number of Reportable Segments 1  
Minimum [Member]    
Property, Plant and Equipment, Useful Life (Year) 3 years  
Maximum [Member]    
Property, Plant and Equipment, Useful Life (Year) 5 years  
MyoVista wavECG Devices [Member]    
Inventory Valuation Reserves $ 300,000  
Inventory Write-Down Percentage, Carrying Value Greater Than or Equal to Threshold 30.00%