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Leases | 12 Months Ended
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Sep. 30, 2023
Leases [Abstract] |
Leases | Leases Our leases consist primarily of office space and construction equipment. All of our future lease obligations are related to non-cancelable operating leases. The decrease of our lease portfolio relates to the wind down of our Canadian facility leases. The following table provides a summary of lease cost components for the years ended September 30, 2023, 2022 and 2021 respectively (in thousands):
Lease Cost |  | 2023 |  | 2022 |  | 2021
Operating lease cost |  | $ | 1,457 |  |  | $ | 2,146 |  |  | $ | 2,435 |
Less: sublease income |  | (515) |  |  | (685) |  |  | (706) |
Variable lease cost(1) |  | 369 |  |  | 457 |  |  | 443 |
Short-term lease cost(2) |  | 1,864 |  |  | 1,643 |  |  | 1,281 |
Total lease cost |  | $ | 3,175 |  |  | $ | 3,561 |  |  | $ | 3,453 |
(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 Consolidated Balance Sheets. The following table provides a summary of the operating lease assets and operating lease liabilities included in our Consolidated Balance Sheets as of September 30, 2023 and 2022, respectively (in thousands):
|  | September 30,
Operating Leases |  | 2023 |  | 2022
Assets: |  |  |  |
Operating lease assets, net |  | $ | 1,436 |  |  | $ | 2,179 |
Liabilities: |  |  |  |
Current operating lease liabilities |  | 773 |  |  | 1,777 |
Long-term operating lease liabilities |  | 663 |  |  | 545 |
Total lease liabilities |  | $ | 1,436 |  |  | $ | 2,322 |
The following table provides the maturities of our operating lease liabilities as of September 30, 2023 (in thousands):
|  | Operating Leases
2024 |  | $ | 802 |
2025 |  | 359 |
2026 |  | 169 |
2027 |  | 142 |
2028 |  | 18 |
Thereafter |  | — |
Total future minimum lease payments |  | $ | 1,490 |
Less: present value discount (imputed interest) |  | (54) |
Present value of lease liabilities |  | $ | 1,436 |
The weighted average discount rate as of September 30, 2023 and 2022 was 3.32% and 3.73%, respectively. The weighted average remaining lease term was 2.67 years and 1.51 years, respectively, at September 30, 2023 and 2022.

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- Definition The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//842-20/tableOfContent + Details
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