Annual report pursuant to Section 13 and 15(d)

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

v3.22.2.2
Leases - Schedule of Financial Statement Classification of Lease Expenses Reported in Consolidated Statements of Operations (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2020
Lessee Lease Description [Line Items]      
Total lease cost $ 1,270 $ 1,005 $ 480
Cost of sales      
Lessee Lease Description [Line Items]      
Operating lease cost 822 536 208
Finance lease cost 4 5 16
Short-term lease cost   191 164
Selling, general and administrative expenses      
Lessee Lease Description [Line Items]      
Operating lease cost 359 256 84
Finance lease cost 71 $ 17 $ 8
Research, development and engineering      
Lessee Lease Description [Line Items]      
Operating lease cost $ 14