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Note I - Fair Value Measurements (Tables)
9 Months Ended
Dec. 31, 2021
Notes Tables  
Fair Value, Liabilities Measured on Recurring Basis [Table Text Block]
  

Quoted Prices

             
  

in Active

  

Significant

         
  

Markets for

  

Other

  

Significant

     
  

Identical

  

Observable

  

Unobservable

     
  

Assets

  

Inputs

  

Inputs

     
  

(Level 1)

  

(Level 2)

  

(Level 3)

  

Total

 

Commodity futures – financial assets, net

 $2,431,240  $  $  $2,431,240 

Total

 $2,431,240  $  $  $2,431,240 
  

Quoted Prices

             
  

in Active

  

Significant

         
  

Markets for

  

Other

  

Significant

     
  

Identical

  

Observable

  

Unobservable

     
  

Assets

  

Inputs

  

Inputs

     
  

(Level 1)

  

(Level 2)

  

(Level 3)

  

Total

 

Commodity futures – financial liabilities, net

 $(7,407,400) $  $  $(7,407,400)

Total

 $(7,407,400) $  $  $(7,407,400)