Leases - Summary of Maturities of Lease Liabilities (Detail) $ in Thousands	Sep. 30, 2021 USD ($)
Lessee Disclosure [Abstract]
Operating Leases 2022	$ 125
Operating Leases 2023	234
Operating Leases 2024	149
Operating Leases 2025	63
Operating Leases Total lease payments	571
Operating Leases Less: Imputed interest	(49)
Operating Leases Total	522
Finance Leases 2022	1
Finance Leases 2023	1
Finance Leases 2024	1
Finance Leases 2025	1
Finance Leases Total lease payments	4
Finance Leases Less: Imputed interest	(1)
Finance Leases Total	$ 3

Present value of lessee's discounted obligation for lease payments from finance lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977