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Detail of Selected Balance Sheet Accounts | 9 Months Ended
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Jun. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Detail of Selected Balance Sheet Accounts | Detail of Selected Balance Sheet Accounts Inventories The components of inventories are summarized below (in thousands):
| June 30, 2023 |  | September 30, 2022
Raw materials, parts and sub-assemblies, net | $ | 64,960 |  |  | $ | 49,213 |
Work-in-progress | 1,149 |  |  | 1,202 |
Total inventories | $ | 66,109 |  |  | $ | 50,415 |
Accrued Product Warranty Activity in our product warranty accrual consisted of the following (in thousands):
| Three months ended June 30, |  | Nine months ended June 30,
| 2023 |  | 2022 |  | 2023 |  | 2022
Balance at beginning of period | $ | 2,711 |  |  | $ | 2,347 |  |  | $ | 2,345 |  |  | $ | 2,531 |
Increase to warranty expense | 1,241 |  |  | 462 |  |  | 2,931 |  |  | 1,077 |
Deduction for warranty charges | (760) |  |  | (499) |  |  | (2,095) |  |  | (1,303) |
Change due to foreign currency translation | 10 |  |  | (22) |  |  | 21 |  |  | (17) |
Balance at end of period | $ | 3,202 |  |  | $ | 2,288 |  |  | $ | 3,202 |  |  | $ | 2,288 |

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- Definition The entire disclosure for supplemental balance sheet disclosures, including descriptions and amounts for assets, liabilities, and equity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//210/tableOfContent + Details
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