Annual report pursuant to Section 13 and 15(d)

Basis of Presentation and Summary of Significant Accounting Policies - Narrative (Details)

v3.22.1
Basis of Presentation and Summary of Significant Accounting Policies - Narrative (Details)
 1 Months Ended 7 Months Ended 12 Months Ended
Nov. 15, 2021
USD ($)
Aug. 31, 2021
phone
Jul. 31, 2021
phone
Dec. 31, 2021
USD ($)
segment
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Jan. 01, 2022
USD ($)
Capital Leased Assets [Line Items]              
Number of operating segments | segment       1      
Number of reportable segments | segment       1      
Restricted cash       $ 0 $ 0    
Accumulated deficit       181,898,000 130,208,000    
Proceeds from issuance of equity       159,000,000      
Proceeds from initial public offering, net of underwriting discounts $ 111,600,000     111,600,000 0 $ 0  
Allowance for doubtful accounts       0 0 0  
Provision for losses on accounts receivable       $ 355,000 287,000 92,000  
Amortization period       3 years      
Deferred offering costs       $ 0 0    
Impairment of long-lived asset       0 0 0  
Advertising expense       $ 6,800,000 2,900,000 1,500,000  
Amortization period for deferred sales commission       3 years      
Title transfer period       36 months      
Number of phones that can be included without adjustment to subscription price | phone   5 10        
Revenue       $ 115,871,000 79,896,000 45,746,000  
Amortization period       3 years      
Phone hardware              
Capital Leased Assets [Line Items]              
Estimated Useful Life       3 years      
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01              
Capital Leased Assets [Line Items]              
Revenue, Remaining Performance Obligation, Amount       $ 2,200,000      
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period       19 months      
Minimum              
Capital Leased Assets [Line Items]              
Incremental borrowing rate (in percent)       5.25%      
Minimum | Accounting Standards Update 2016-02 | Subsequent Event              
Capital Leased Assets [Line Items]              
Right-of-use asset             $ 46,000,000.0
Lease liability             50,000,000.0
Maximum              
Capital Leased Assets [Line Items]              
Incremental borrowing rate (in percent)       6.25%      
Maximum | Accounting Standards Update 2016-02 | Subsequent Event              
Capital Leased Assets [Line Items]              
Right-of-use asset             50,000,000
Lease liability             $ 54,000,000
Prime rate | Minimum              
Capital Leased Assets [Line Items]              
Basis spread on variable rate (in percent)       0.25%      
Prime rate | Maximum              
Capital Leased Assets [Line Items]              
Basis spread on variable rate (in percent)       3.50%      
Revolving credit facility              
Capital Leased Assets [Line Items]              
Line of credit       $ 10,000,000      
Hardware (embedded lease)              
Capital Leased Assets [Line Items]              
Revenue       $ 3,343,000 $ 2,619,000 $ 2,163,000