Quarterly report [Sections 13 or 15(d)]

Note 13 - Income Taxes (Tables)

v3.26.1
Note 13 - Income Taxes (Tables)
9 Months Ended
Jun. 30, 2026
Notes Tables  
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
   

Three Months Ended

   

Nine Months Ended

 
   

June 30,

   

June 30,

 
   

2026

   

2025

   

2026

   

2025

 
                                 

Income tax benefit at U.S. federal statutory rates

  $ (1,467,554 )   $ (1,537,851 )   $ (3,236,830 )   $ (3,566,933 )

State income tax benefit, net of federal benefit

    (230,616 )     (403,409 )     (508,645 )     (560,518 )

Non-deductible expenses

    52,054       58,150       72,650       78,763  

U.S. research and development tax credit

    (704,711 )     6,722       (959,164 )     (421,986 )

Effect of change in effective tax rate

          554,430             554,430  

Change in estimated unrecognized tax benefit

    703,833             717,240        

Change in valuation allowance

    1,646,994       1,321,958       3,914,749       3,916,244  

Income tax expense

  $     $     $     $