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REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables) | 6 Months Ended
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Jun. 30, 2025
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | The following tables provide additional information about our revenue from contracts with customers, including revenue by customer and product type and revenue by market. See “Note (18) Segment Information” for information about revenue by operating segment and geographic region.
|  | Three Months Ended |  | Six Months Ended
|  | June 30, |  | June 30,
(in thousands) |  | 2025 |  | 2024 |  | 2025 |  | 2024
Revenue by customer type: |  |  |  |  |  |  |  |
End user |  | $ | 23,192 |  |  | $ | 27,496 |  |  | $ | 45,628 |  |  | $ | 48,926 |
OEM/Integrator |  | 4,938 |  |  | 6,495 |  |  | 9,139 |  |  | 14,889 |
|  | $ | 28,130 |  |  | $ | 33,991 |  |  | $ | 54,767 |  |  | $ | 63,815 |
|  | Three Months Ended |  | Six Months Ended
|  | June 30, |  | June 30,
(in thousands) |  | 2025 |  | 2024 |  | 2025 |  | 2024
Revenue by product type: |  |  |  |  |  |  |  |
Thermal test |  | $ | 4,839 |  |  | $ | 4,228 |  |  | $ | 9,232 |  |  | $ | 7,927 |
Thermal process |  | 5,547 |  |  | 9,843 |  |  | 10,828 |  |  | 20,798 |
Semiconductor test |  | 5,926 |  |  | 4,014 |  |  | 10,660 |  |  | 10,296 |
Video imaging |  | 2,289 |  |  | 1,685 |  |  | 4,346 |  |  | 3,804 |
Flying probe and in-circuit testers |  | 1,204 |  |  | 1,031 |  |  | 3,060 |  |  | 3,775 |
Alfamation™ products |  | 4,629 |  |  | 9,719 |  |  | 8,778 |  |  | 11,098 |
Service/other |  | 3,696 |  |  | 3,471 |  |  | 7,863 |  |  | 6,117 |
|  | $ | 28,130 |  | — |  | $ | 33,991 |  |  | $ | 54,767 |  |  | $ | 63,815 |
|  | Three Months Ended |  | Six Months Ended
|  | June 30, |  | June 30,
(in thousands) |  | 2025 |  | 2024 |  | 2025 |  | 2024
Revenue by market: |  |  |  |  |  |  |  |
Semi |  | $ | 10,192 |  |  | $ | 10,124 |  |  | $ | 19,187 |  |  | $ | 25,091 |
Auto/EV |  | 5,862 |  |  | 10,735 |  |  | 11,821 |  |  | 14,693 |
Defense/Aerospace |  | 3,578 |  |  | 3,682 |  |  | 6,406 |  |  | 6,921 |
Industrial |  | 3,786 |  |  | 3,415 |  |  | 6,807 |  |  | 7,602 |
Life Sciences |  | 1,386 |  |  | 2,194 |  |  | 3,074 |  |  | 2,847 |
Safety/Security |  | 898 |  |  | 792 |  |  | 1,462 |  |  | 1,333 |
Other |  | 2,428 |  |  | 3,049 |  |  | 6,010 |  |  | 5,328 |
|  | $ | 28,130 |  |  | $ | 33,991 |  |  | $ | 54,767 |  |  | $ | 63,815 |
Activity Related to Allowance for Credit Losses | Activity related to our allowance for credit losses was as follows:
|  | Three Months Ended |  | Six Months Ended
|  | June 30, |  | June 30,
(in thousands) |  | 2025 |  | 2024 |  | 2025 |  | 2024
Beginning balance |  | $ | 411 |  |  | $ | 426 |  |  | $ | 423 |  |  | $ | 474 |
Credit loss expense, net of release of unused allowance |  | 60 |  |  | 1 |  |  | 46 |  |  | 1 |
Write-offs |  | (12) |  |  | — |  |  | (12) |  |  | (48) |
Foreign currency translation impact |  | 5 |  |  | (11) |  |  | 7 |  |  | (11) |
Ending balance |  | $ | 464 |  |  | $ | 416 |  |  | $ | 464 |  |  | $ | 416 |

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