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Income Taxes - Narrative (Details) - USD ($)
 12 Months Ended
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