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Intangible Assets | 12 Months Ended
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Sep. 30, 2021
Finite-Lived Intangible Assets, Net [Abstract] |
Intangible Assets | Intangible Assets Intangible assets consist of the following:
|  |  |  |  |  | Balance as of September 30, 2021 |  | Balance as of September 30, 2020
|  | Useful Life (in years) |  | Weighted average useful Life (in years) |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount |
|  |  |  |  |  | (in thousands) |  | (in thousands) |
Contract intangibles |  | 6 |  | 6.0 |  | $ | 3,100 |  |  | $ | (1,679) |  |  | $ | 1,421 |  |  | $ | 3,100 |  |  | $ | (1,162) |  |  | $ | 1,938 |  |
Brand and technology |  | 5 |  | 5.0 |  | 2,700 |  |  | (1,755) |  |  | 945 |  |  | 2,700 |  |  | (1,215) |  |  | 1,485 |  |
Patent and trademarks |  | 7 - 10 |  | 8.6 |  | 2,360 |  |  | (1,273) |  |  | 1,087 |  |  | 2,329 |  |  | (994) |  |  | 1,335 |  |
Total intangible assets, net |  |  |  |  |  | $ | 8,160 |  |  | $ | (4,707) |  |  | $ | 3,453 |  |  | $ | 8,129 |  |  | $ | (3,371) |  |  | $ | 4,758 |  |
Future expected amortization of intangible assets at September 30, 2021, is as follows:
Year Ending September 30, |  | Amortization
|  | (in thousands)
2022 |  | $ | 1,330 |
2023 |  | 1,187 |
2024 |  | 649 |
2025 |  | 287 |
2026 |  | — |
Thereafter |  | — |
Total |  | $ | 3,453 |
Amortization expense related to intangible assets for the years ended September 30, 2021, 2020 and 2019 was $1.3 million, $1.3 million and $1.3 million, respectively. The Company did not record impairment charges on any intangible assets during the years ended September 30, 2021, 2020 and 2019.

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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