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Inventories | 9 Months Ended
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Jun. 30, 2022
Inventories |
Inventories | 7. Inventories Inventories consist of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, | ​ | September 30,
​ |  | 2022 |  | 2021
​ | ​ | (Amounts in thousands)
Raw materials | ​ | $ | 563 | ​ | $ | 736
Work-in-process | ​ |  | 7 | ​ | ​ | 289
Finished goods | ​ |  | 5,037 | ​ | ​ | 2,964
Total | ​ | $ | 5,607 | ​ | $ | 3,989
​ 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 -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details
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