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Inventories | 6 Months Ended
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Mar. 31, 2024
Inventories |
Inventories | 6. Inventories Inventories consist of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, | ​ | September 30,
​ |  | 2024 |  | 2023
​ | ​ | (Amounts in thousands)
Raw materials | ​ | $ | 196 | ​ | $ | 247
Work-in-process | ​ |  | 52 | ​ | ​ | 36
Finished goods | ​ |  | 1,230 | ​ | ​ | 2,259
Total | ​ | $ | 1,478 | ​ | $ | 2,542
​ We evaluate inventory for obsolescence on at least a quarterly basis or more frequently if needed. Our HPP segment has a multi-faceted approach in determining obsolescence including reviewing inventory by product line, program, and individual part. In the TS segment, we seek to minimize obsolete inventory by having nearly all of our inventory purchased in conjunction with a sales agreement. From time to time, we do purchase certain inventory in bulk to receive discounts, but only when we anticipate selling this inventory. The inventory we purchase at the TS segment is in high demand, especially in the current environment, and has a limited risk of obsolescence.

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 330 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//330/tableOfContent + Details
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