XML 69 R51.htm IDEA: XBRL DOCUMENT v3.21.2
Income Taxes - Summary of Effective Income Tax Rate Reconciliation (Detail)
12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Income Tax Disclosure [Abstract]    
At U.S. federal statutory rate 21.00% 21.00%
State taxes, net of federal effect 7.00% 7.00%
Stock compensation 1.30% 13.30%
Mark-to-market adjustments 0.00% 0.00%
Valuation allowance (29.30%) (43.30%)
Other 0.00% 2.00%
True-up on deferred taxes 0.00% 0.00%
Tax rate change 0.00% 0.00%
Effective income tax rate 0.00% 0.00%