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Leases (Tables) | 12 Months Ended
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Sep. 30, 2021
Leases [Abstract] |
Lease, cost | The components of lease expense are:
|  | September 30,
|  | 2021 |  | 2020
|  | (in thousands)
Finance lease – lease asset amortization |  | $ | 54 |  |  | $ | 69 |
Finance lease – interest on lease liabilities |  | 22 |  |  | 23 |
Operating lease cost |  | 5,139 |  |  | 5,264 |
Operating lease impairment expense |  | 172 |  |  | — |
Short-term lease cost |  | 242 |  |  | 125 |
Variable lease cost (1) |  | 1,532 |  |  | 1,463 |
Sublease income |  | (184) |  |  | (258) |
Total net lease cost |  | $ | 6,977 |  |  | $ | 6,686 |
(1) Variable lease costs primarily relate to the Company's election to combine non-lease components such as common area maintenance, insurance and taxes related to its real estate leases. To a lesser extent, the Company's equipment leases have variable costs associated with usage and subsequent changes to costs based upon an index. Supplemental disclosures of cash flow information related to leases are:
(in thousands) | Year Ended September 30,
| 2021 |  | 2020
Cash paid for amounts included in operating lease liabilities | $ | 4,319 |  |  | $ | 4,771 |
Cash paid for amounts included in finance lease liabilities | 42 |  |  | 34 |
Non-cash: lease liabilities arising from new operating lease assets obtained (1) | 3,349 |  |  | 12,190 |
Non-cash: lease liabilities arising from new finance lease assets obtained | 137 |  |  | 10 |
Non-cash: adjustments to lease assets and liabilities | 3,756 |  |  | 3,942 |
(1) Year ended September 30, 2020 amount includes $12.2 million of lease liabilities recognized upon the adoption of ASC 842 on October 1, 2019 (see Note 2).
Lessee, operating lease, liability, maturity | Maturities of lease liabilities are:
| September 30, 2021
(in thousands) | Operating Leases |  | Finance Leases
2022 | $ | 4,882 |  |  | $ | 78 |
2023 | 4,145 |  |  | 79 |
2024 | 3,076 |  |  | 59 |
2024 | 2,445 |  |  | 30 |
2025 | 1,441 |  |  | 30 |
Thereafter | 212 |  |  | 12 |
Total lease payments (1) | $ | 16,201 |  |  | $ | 288 |
Less: imputed interest (2) | (1,855) |  |  | (38) |
Total lease liabilities | $ | 14,346 |  |  | $ | 250 |
(1) The weighted average remaining lease term is 3.7 years for operating leases and 4.1 years for finance leases. (2) The weighted average discount rate is 6.5% for operating leases and 6.7% for finance leases.
Finance lease, liability, fiscal year maturity | Maturities of lease liabilities are:
| September 30, 2021
(in thousands) | Operating Leases |  | Finance Leases
2022 | $ | 4,882 |  |  | $ | 78 |
2023 | 4,145 |  |  | 79 |
2024 | 3,076 |  |  | 59 |
2024 | 2,445 |  |  | 30 |
2025 | 1,441 |  |  | 30 |
Thereafter | 212 |  |  | 12 |
Total lease payments (1) | $ | 16,201 |  |  | $ | 288 |
Less: imputed interest (2) | (1,855) |  |  | (38) |
Total lease liabilities | $ | 14,346 |  |  | $ | 250 |
(1) The weighted average remaining lease term is 3.7 years for operating leases and 4.1 years for finance leases. (2) The weighted average discount rate is 6.5% for operating leases and 6.7% for finance leases.

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- Definition Tabular disclosure of undiscounted cash flows of finance lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to finance lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 + Details
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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 + Details
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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 + Details
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