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Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Mar. 31, 2024 | Jun. 30, 2023 | Mar. 31, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Balance |  | $ 33,087 |  |  | $ 33,087 |
Net change related to derivatives | $ (98) |  | $ (205) |  | (98) | $ (788)
Net current-period other comprehensive income (loss) | 887 | (2,541) | (741) | $ (1,294) |  |
Balance | 6,529 |  |  |  | 6,529 |
Foreign Currency Items [Member] |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Balance |  | (986) |  |  | (986) |
Net current-period other comprehensive income (loss) |  |  |  |  | (1,659) |
Balance | (2,645) |  |  |  | (2,645) |
Unrealized Gain (Losses) On Available-For-Sale Investments [Member] |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Balance |  | (18) |  |  | (18) |
Net current-period other comprehensive income (loss) |  |  |  |  | 1 |
Balance | (17) |  |  |  | (17) |
Accrued Pension Service Costs [Member] |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Balance |  | (1,669) |  |  | (1,669) |
Net current-period other comprehensive income (loss) |  |  |  |  | 104 |
Balance | (1,565) |  |  |  | (1,565) |
Hedge Accounting Reserve [Member] |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Total change in hedge fair value recorded in Other Comprehensive Income |  |  |  |  | (98) |
Net change related to derivatives |  |  |  |  | (98) |
Net current-period other comprehensive income (loss) |  |  |  |  | (98) |
Balance | (98) |  |  |  | (98) |
Accumulated Other Comprehensive Income/(Loss) [Member] |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Balance |  | (2,673) |  |  | (2,673) |
Total change in hedge fair value recorded in Other Comprehensive Income |  |  |  |  | (98) |
Net change related to derivatives |  |  |  |  | (98) |
Net current-period other comprehensive income (loss) | 886 | $ (2,538) | $ (740) | $ (1,293) | (1,652) |
Balance | $ (4,325) |  |  |  | $ (4,325) |

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