Annual report pursuant to Section 13 and 15(d)

Income Taxes - Additional Information (Details)

v3.21.4
Income Taxes - Additional Information (Details)
$ in Millions
12 Months Ended
Sep. 30, 2021
USD ($)
Tax Credit Carryforward [Line Items]  
Income tax examination year 2017
Income tax examination completion date Sep. 30, 2021
Income tax examination, description The Company was under IRS examination for the September 30, 2017 tax year, however, the matter was closed with no proposed adjustments.
Valuation allowance $ 0.8
Federal  
Tax Credit Carryforward [Line Items]  
Net operating loss carryforward 0.0
State  
Tax Credit Carryforward [Line Items]  
Net operating loss carryforward $ 7.3
Operating loss carryforward expiration date Dec. 31, 2034
Tax credit carryforwards $ 0.7