Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Letters of Credit (Details)

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Commitments and Contingencies - Letters of Credit (Details) - USD ($)
Mar. 31, 2021
Sep. 30, 2020
Financial Standby Letter of Credit    
Loss Contingencies [Line Items]    
Outstanding standby letters of credit $ 236,000 $ 399,000