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Income Taxes - Narrative (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Operating Loss Carryforwards [Line Items] |  |
Valuation allowance activity | $ 13,600,000 | $ 6,000,000
Employer payroll taxes deferred, CARES Act | 1,400,000 |
Income tax benefit recognized related to uncertain tax positions | 0 | 0
Interest expense related to uncertain tax positions | 0 | 0
Liability related to unrecognized tax benefits | 0 | $ 0
Ctrack South Africa divestiture |  |
Operating Loss Carryforwards [Line Items] |  |
Valuation allowance activity | (10,000,000) |
True-up of prior year deferred taxes |  |
Operating Loss Carryforwards [Line Items] |  |
Valuation allowance activity | 3,000,000 |
Foreign currency |  |
Operating Loss Carryforwards [Line Items] |  |
Valuation allowance activity | (200,000) |
Domestic Tax Authority |  |
Operating Loss Carryforwards [Line Items] |  |
Net operating loss carryforwards | 417,200,000 |
Operating loss carryforwards, not subject to expiration | 110,000,000 |
Research and development tax credit carryforwards | 15,900,000 |
California Franchise Tax Board |  |
Operating Loss Carryforwards [Line Items] |  |
Net operating loss carryforwards | 62,000,000 |
Research and development tax credit carryforwards | 17,400,000 |
Foreign Tax Authority |  |
Operating Loss Carryforwards [Line Items] |  |
Net operating loss carryforwards | $ 22,700,000 |

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