v3.26.1
Note 10 - Stock Options and Grants (Details Textual) - USD ($)
3 Months Ended
Aug. 13, 2025
May 31, 2026
May 31, 2025
Oct. 14, 2024
Share Repurchase Program, Authorized, Amount       $ 2,000,000
Treasury Stock, Shares, Acquired (in shares)   0 0  
Chief Operating Officer [Member] | Ninety Days After Agreement Date [Member]        
Deferred Compensation Arrangement with Individual, Common Stock Reserved for Future Issuance (in shares) 50,000      
Deferred Compensation Arrangement with Individual, Exercise Price (in dollars per share) $ 14.5      
Chief Operating Officer [Member] | Within 30 Days After the End of Each Fiscal Quarter [Member]        
Deferred Compensation Arrangement with Individual, Common Stock Reserved for Future Issuance (in shares) 5,000