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Intangible Assets (Tables) | 3 Months Ended
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Dec. 31, 2019
Goodwill And Intangible Assets Disclosure [Abstract] |
Schedule of Intangible Assets | Intangible assets consisted of the following:
|  | December 31, 2019 |
(Dollars in thousands) |  | Weighted Average Original Life (Years) |  |  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net |
Definite-lived intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Customer lists and relationships |  |  | 8.9 |  |  | $ | 17,684 |  |  | $ | (11,177 | ) |  | $ | 6,507 |
Developed technology |  |  | 11.5 |  |  | $ | 9,562 |  |  | $ | (3,453 | ) |  | $ | 6,109 |
Non-compete |  |  | 5.0 |  |  | $ | 230 |  |  | $ | (207 | ) |  | $ | 23 |
Patents and other |  |  | 16.5 |  |  | $ | 2,321 |  |  | $ | (1,755 | ) |  | $ | 566 |
Subtotal |  |  |  |  |  |  | 29,797 |  |  |  | (16,592 | ) |  |  | 13,205 |
Unamortized intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trademarks and trade names |  |  |  |  |  |  | 580 |  |  |  | — |  |  |  | 580 |
Total |  |  |  |  |  | $ | 30,377 |  |  | $ | (16,592 | ) |  | $ | 13,785 |
|  | September 30, 2019 |
(Dollars in thousands) |  | Weighted Average Original Life (Years) |  |  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net |
Definite-lived intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Customer lists and relationships |  |  | 8.9 |  |  | $ | 17,374 |  |  | $ | (10,661 | ) |  | $ | 6,713 |
Developed technology |  |  | 11.5 |  |  |  | 9,490 |  |  |  | (3,196 | ) |  |  | 6,294 |
Non-compete |  |  | 5.0 |  |  |  | 230 |  |  |  | (196 | ) |  |  | 34 |
Patents and other |  |  | 16.5 |  |  |  | 2,321 |  |  |  | (1,716 | ) |  |  | 605 |
Subtotal |  |  |  |  |  |  | 29,415 |  |  |  | (15,769 | ) |  |  | 13,646 |
Unamortized intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trademarks and trade names |  |  |  |  |  |  | 580 |  |  |  | — |  |  |  | 580 |
Total |  |  |  |  |  | $ | 29,995 |  |  | $ | (15,769 | ) |  | $ | 14,226 |
Estimated Amortization Expense | Based on the intangible assets in service as of December 31, 2019, estimated amortization expense for the remainder of fiscal 2020 and each of the next five fiscal years is as follows (in thousands):
Remainder of 2020 |  | $ | 1,799 |
2021 |  |  | 2,319 |
2022 |  |  | 2,279 |
2023 |  |  | 1,668 |
2024 |  |  | 1,610 |
2025 |  |  | 1,553 |

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