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v3.21.2

Segment Reporting - Net Sales and Operating Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Segment Reporting Information [Line Items] |  |  |  |
Net sales | $ 42,984 | $ 41,112 | $ 128,639 | $ 114,606
Loss from operations | (3,229) | (503) | (12,638) | (11,587)
Net interest and other income (expense) | 7,263 | (143) | 6,896 | 1,721
Income (loss) before income tax expense (benefit) | 4,034 | (646) | (5,742) | (9,866)
Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Loss from operations | 1,859 | 3,693 | 4,777 | 1,311
Operating Segments | Mobile connectivity |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 34,388 | 31,383 | 98,650 | 89,465
Loss from operations | 1,545 | 2,285 | 1,728 | 570
Operating Segments | Inertial navigation |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 8,596 | 9,729 | 29,989 | 25,141
Loss from operations | 314 | 1,408 | 3,049 | 741
Unallocated |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Loss from operations | $ (5,088) | $ (4,196) | $ (17,415) | $ (12,898)

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