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Inventories (Tables) | 3 Months Ended
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Dec. 31, 2020
Inventory Disclosure [Abstract] |
Inventories | Inventories consist of the following (in thousands):
|  | March 31, 2021 |  |  | September 30, 2020 |
Finished goods |  | $ | 21,492 |  |  | $ | 20,798 |
Work in process |  |  | 4,230 |  |  |  | 984 |
Raw materials |  |  | 49,497 |  |  |  | 47,041 |
Obsolescence reserve |  |  | (35,326 | ) |  |  | (34,960 | )
|  |  | 39,893 |  |  |  | 33,863 |
Less current portion |  |  | (15,313 | ) |  |  | (16,933 | )
Non-current portion |  | $ | 24,580 |  |  | $ | 16,930 |

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