Quarterly report pursuant to Section 13 or 15(d)

Leases - Schedule of Financial Statement Classification of Lease Expenses Reported in Condensed Consolidated Statements of Operations (Detail)

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Leases - Schedule of Financial Statement Classification of Lease Expenses Reported in Condensed Consolidated Statements of Operations (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Lessee Lease Description [Line Items]    
Total lease cost $ 298 $ 150
Cost of sales    
Lessee Lease Description [Line Items]    
Operating lease cost 197 71
Finance lease cost 1 2
Short-term lease cost   27
Selling, General And Administrative Expenses [Member]    
Lessee Lease Description [Line Items]    
Operating lease cost 84 48
Finance lease cost $ 16 $ 2