Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Summary of Fair Value Activity (Details)

v3.21.1
Fair Value Measurements - Summary of Fair Value Activity (Details) - Recurring - Significant Unobservable Inputs (Level 3) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Earn-Out from siParadigm    
Assets    
Fair value, beginning balance $ 1,103 $ 0
Change in fair value (66) (935)
Fair value at issuance   2,376
Fair value of warrants exchanged for stock 0  
Receipts received during the period (288) (338)
Settlement of liability 0  
Removed from fair value accounting (749)  
Fair value, ending balance 0 1,103
Note Payable    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value beginning balance 16 20
Change in fair value (4) (4)
Fair value at issuance   0
Receipts received during the period 0 0
Fair value of warrants exchanged for stock 0  
Settlement of liability (12)  
Removed from fair value accounting 0  
Fair value ending balance 0 16
Warrant    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value beginning balance 178 248
Change in fair value (167) (70)
Fair value at issuance   0
Receipts received during the period 0 0
Fair value of warrants exchanged for stock (10)  
Settlement of liability 0  
Removed from fair value accounting 0  
Fair value ending balance 1 178
Other    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value beginning balance 0 86
Change in fair value 0 (86)
Fair value at issuance   0
Receipts received during the period 0 0
Fair value of warrants exchanged for stock 0  
Settlement of liability 0  
Removed from fair value accounting 0  
Fair value ending balance $ 0 $ 0