Leases (Tables)

12 Months Ended

Sep. 30, 2021

Leases [Abstract]

Schedule of Operating Lease Costs

The components of lease expense for the years ended September 30 were as follows:

	2020		2021
Operating lease expense	$	207	195
Variable lease expense	$	19	17

Right of Use Assets and Operating Lease Liabilities

The following table summarizes the balances of the Company's operating lease right-of-use assets and operating lease liabilities as of September 30, 2020 and 2021, the vast majority of which relates to offices and manufacturing facilities:

	2020		2021
Right-of-use assets (Other assets)	$	508	558
Current lease liabilities (Accrued expenses)	$	148	155
Noncurrent lease liabilities (Other liabilities)	$	373	413

Schedule of Future Maturities of Operating Lease Liabilities

Future maturities of operating lease liabilities as of September 30, 2021 are summarized below:

	2021
2022	$	166
2023	131
2024	97
2025	62
2026	39
Thereafter	125
Total lease payments	620
Less: Interest	52
Total lease liabilities	$	568