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Income Taxes (Tables)
3 Months Ended
Dec. 31, 2020
Income Tax Disclosure [Abstract]  
Schedule of Effective Income Tax Rate Reconciliation

   2020   2019 
   For the Three Months 
   Ended December 31, 
   2020   2019 
Computed expected income tax expense   21.0%   21.0%
State income taxes, net of federal benefit   3.3%   4.3%
Permanent differences   (8.2)%   1.0%
Change in valuation allowance   (14.0)%   0.0%
Tax credits   (6.3)%   (4.3)%
Total income tax expense (benefit)   (4.2)%   22.0%