Significant Accounting Policies (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021	Sep. 30, 2021
Acquired Indefinite-lived Intangible Assets [Line Items]
Estimated useful live of intangible assets			10 years
Goodwill	$ 65,643,000		$ 65,643,000		$ 65,643,000
Goodwill impairment					0
Uncertain tax positions	0		0		0
Income tax interest expense	0	$ 0	0	$ 0
Income tax penalties expense	0	$ 0	0	$ 0
Cash balances	359,000		359,000		$ 24,051,000
Cash, FDIC insured amount	$ 250,000		$ 250,000
Preferred shares authorized (in shares)	5,000,000		5,000,000
Preferred stock issued (in shares)	0		0		0
Employee Stock Option
Acquired Indefinite-lived Intangible Assets [Line Items]
Number of awards authorized for issuance (in shares)	0		0
Expiration term of share-based compensation plan			10 years
Minimum
Acquired Indefinite-lived Intangible Assets [Line Items]
Estimated useful of long-lived assets			3 years
Maximum
Acquired Indefinite-lived Intangible Assets [Line Items]
Estimated useful of long-lived assets			7 years