Leases

3 Months Ended

Dec. 31, 2020

Leases [Abstract]

Leases

Leases

Our leases consist primarily of office and manufacturing space, construction equipment and office equipment. All of our future lease obligations are related to non-cancelable operating leases. The most significant portion of our lease portfolio relates to leases of office and manufacturing facilities in Canada which we no longer occupy. We currently sublease the majority of these Canadian facilities. The following table provides a summary of lease cost components for the three months ended December 31, 2020 (in thousands):

	Three months ended December 31,
Lease Cost	2020		2019
Operating lease cost	$	608	$	628
Less: sublease income	(180)		(79)
Variable lease cost(1)	108		94
Short-term lease cost(2)	169		190
Total lease cost	$	705	$	833

(1) Variable lease cost represents common area maintenance charges related to our Canadian office space lease.

(2) Short-term lease cost includes leases and rentals with initial terms of one year or less.

We recognize operating lease assets and operating lease liabilities representing the present value of the remaining lease payments for leases with initial terms greater than twelve months. Leases with initial terms of twelve months or less are not recorded in our Condensed Consolidated Balance Sheets. Our operating lease assets have been reduced by a lease accrual of $0.5 million related to certain unused facility leases in Canada. The following table provides a summary of the operating lease assets and operating lease liabilities included in our Condensed Consolidated Balance Sheets as of December 31, 2020 (in thousands):

Operating Leases	December 31, 2020		September 30, 2020
Assets:
Operating lease assets, net	$	4,711	$	5,217
Liabilities:
Current operating lease liabilities	2,154		2,352
Long-term operating lease liabilities	3,075		3,434
Total lease liabilities	$	5,229	$	5,786

The following table provides the maturities of our operating lease liabilities as of December 31, 2020 (in thousands):

	Operating Leases
Remainder of 2021	$	1,859
2022	2,302
2023	1,233
2024	86
2025	—
Thereafter	—
Total future minimum lease payments	5,480
Less: present value discount (imputed interest)	(251)
Present value of lease liabilities	$	5,229

The weighted average discount rate as of December 31, 2020 was 4.17%. The weighted average remaining lease term was 2.3 years at December 31, 2020.