v3.26.1
Note 2 - Convertible Notes Payable Warrants (Tables)
3 Months Ended
Jun. 30, 2026
Notes Tables  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
      

Weighted-Average

 
      

Exercise Price

 
  

Warrants

  

Per Share

 
  

(as revised)

  

(as revised)

 
         

Outstanding and exercisable, March 31, 2026

  1,194  $420.00 
         

Outstanding and exercisable, June 30, 2026

  1,194  $420.00