Quarterly report [Sections 13 or 15(d)]

Note 13 - Income Taxes (Tables)

v3.26.1
Note 13 - Income Taxes (Tables)
6 Months Ended
Mar. 31, 2026
Notes Tables  
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
   

Three Months Ended

   

Six Months Ended

 
   

March 31,

   

March 31,

 
   

2026

   

2025

   

2026

   

2025

 
                                 

Income tax benefit at U.S. federal statutory rates

  $ (649,435 )   $ (1,649,002 )   $ (1,769,276 )   $ (2,029,082 )

State income tax benefit, net of federal benefit

    (102,054 )     (127,680 )     (278,029 )     (157,109 )

Non-deductible expenses

    18,946       19,874       20,596       20,613  

U.S. research and development tax credit

    (137,696 )     (197,911 )     (254,453 )     (428,708 )

Other

    5,255             13,407        

Change in valuation allowance

    864,984       1,954,719       2,267,755       2,594,286  

Income tax expense

  $     $     $     $