Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Details)

v3.22.2
Commitments and Contingencies - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Dec. 11, 2019
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Jul. 31, 2020
Loss Contingencies [Line Items]              
Contingent severance obligation accrual           $ 2,000  
Transaction Bonus Plan ("Plan")              
Loss Contingencies [Line Items]              
Percentage of consideration payable 10.00%            
Term of plan 3 years            
Former Chief Executive Officer              
Loss Contingencies [Line Items]              
Salary to be paid       $ 400      
Former Chief Executive Officer | Transaction Bonus Plan ("Plan")              
Loss Contingencies [Line Items]              
Percentage of ownership interest in plan 50.00%            
President and Chief Operating Officer Member | Transaction Bonus Plan ("Plan")              
Loss Contingencies [Line Items]              
Percentage of ownership interest in plan 10.00%            
Other Key Employees [Member] | Transaction Bonus Plan ("Plan")              
Loss Contingencies [Line Items]              
Percentage of ownership interest in plan 35.00%            
Consultants [Member] | Transaction Bonus Plan ("Plan")              
Loss Contingencies [Line Items]              
Percentage of ownership interest in plan 6.00%            
Pearson Action              
Loss Contingencies [Line Items]              
Contingent severance obligation accrual             $ 2,000
Cost of Revenues              
Loss Contingencies [Line Items]              
Royalty expense   $ 524 $ 470 $ 1,369 $ 1,664    
Wireless Essential Patent Holders              
Loss Contingencies [Line Items]              
Royalty expire year       2021      
Wireless Essential Patent Holders | Maximum              
Loss Contingencies [Line Items]              
Royalty payment percent of net revenues       5.00%      
Other Providers of Integrated Technologies              
Loss Contingencies [Line Items]              
Royalty expire year       2026      
Other Providers of Integrated Technologies | Maximum              
Loss Contingencies [Line Items]              
Royalty payment percent of net revenues       5.00%