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Fair Value Measurements (Tables)
3 Months Ended
Mar. 31, 2023
Fair Value Disclosures [Abstract]  
Schedule of Assets Measured at Fair Value of a Recurring Basis Assets and liabilities carried at fair value on a recurring basis as of March 31, 2023 and December 31, 2022 consisted of the following (in thousands):
March 31, 2023
Fair ValueLevel 1Level 2Level 3
Financial assets:
Cash and Cash Equivalents(1):
Money market funds$30,417 $30,417 $— $— 
30,417 30,417 — — 
Short-Term Investments:
U.S. treasuries650 650 — — 
Corporate debt security23,882 — 23,882 — 
Asset-backed security and other2,996 — 2,996 — 
27,528 650 26,878 — 
Total financial assets$57,945 $31,067 $26,878 $— 
Financial liabilities:
Private Placement Warrants$$— $$— 
Public Warrants659 659 — — 
Derivative Liabilities497 — — 497 
Contingent Earn-out Shares liability616 — — 616 
Total financial liabilities$1,779 $659 $$1,113 

____________
(1) Included in total cash and cash equivalents in the condensed consolidated balance sheets.
December 31, 2022
Fair ValueLevel 1Level 2Level 3
Financial assets:
Cash and Cash Equivalents(1):
Money market funds$22,481 $22,481 $— $— 
Corporate debt security2,199 2,199 — — 
24,680 24,680 — — 
Short-Term Investments:
U.S. treasuries2,180 2,180 — — 
Corporate debt security39,565 — 39,565 — 
Asset-backed security and other5,248 — 5,248 — 
Non-U.S. government and supranational bonds3,655 — 3,655 — 
50,648 2,180 48,468 — 
Total financial assets$75,328 $26,860 $48,468 $— 
Financial liabilities:
Private Placement Warrants$$— $$— 
Public Warrants654 654 — — 
Derivative Liabilities405 — — 405 
Contingent Earn-out Shares liability564 — — 564 
Total financial liabilities$1,630 $654 $$969 
____________
(1) Included in total cash and cash equivalents in the condensed consolidated balance sheets.
Schedule of Liabilities Measured at Fair Value of a Recurring Basis Assets and liabilities carried at fair value on a recurring basis as of March 31, 2023 and December 31, 2022 consisted of the following (in thousands):
March 31, 2023
Fair ValueLevel 1Level 2Level 3
Financial assets:
Cash and Cash Equivalents(1):
Money market funds$30,417 $30,417 $— $— 
30,417 30,417 — — 
Short-Term Investments:
U.S. treasuries650 650 — — 
Corporate debt security23,882 — 23,882 — 
Asset-backed security and other2,996 — 2,996 — 
27,528 650 26,878 — 
Total financial assets$57,945 $31,067 $26,878 $— 
Financial liabilities:
Private Placement Warrants$$— $$— 
Public Warrants659 659 — — 
Derivative Liabilities497 — — 497 
Contingent Earn-out Shares liability616 — — 616 
Total financial liabilities$1,779 $659 $$1,113 

____________
(1) Included in total cash and cash equivalents in the condensed consolidated balance sheets.
December 31, 2022
Fair ValueLevel 1Level 2Level 3
Financial assets:
Cash and Cash Equivalents(1):
Money market funds$22,481 $22,481 $— $— 
Corporate debt security2,199 2,199 — — 
24,680 24,680 — — 
Short-Term Investments:
U.S. treasuries2,180 2,180 — — 
Corporate debt security39,565 — 39,565 — 
Asset-backed security and other5,248 — 5,248 — 
Non-U.S. government and supranational bonds3,655 — 3,655 — 
50,648 2,180 48,468 — 
Total financial assets$75,328 $26,860 $48,468 $— 
Financial liabilities:
Private Placement Warrants$$— $$— 
Public Warrants654 654 — — 
Derivative Liabilities405 — — 405 
Contingent Earn-out Shares liability564 — — 564 
Total financial liabilities$1,630 $654 $$969 
____________
(1) Included in total cash and cash equivalents in the condensed consolidated balance sheets.
Schedule of Changes on Fair Value of Financial Liabilities
The changes in the fair value of Level 3 financial liabilities during the three months ended March 31, 2023 consisted of the following (in thousands):
Derivative Liabilities on Convertible DebenturesContingent Earn-out Shares Liability
Fair value at December 31, 2022
$405 $564 
Recognition of earn-out RSUs— — 
Change in fair value during the period92 52 
Fair value at March 31, 2023
$497 $616 
Schedule of Fair Value Measurement Inputs and Valuation Techniques
Significant unobservable inputs related to Level 3 earn-out shares liability consisted of the following:

March 31, 2023
December 31, 2022
Stock price
$0.53$0.44
Stock price volatility
80%80%
Expected term
3.39 years3.64 years
Risk-free interest rate
3.8%4.2%

Significant unobservable inputs related to Level 3 derivative liabilities consisted of the following:

March 31, 2023December 31, 2022
Stock price
$0.53$0.44
Stock price volatility
80%80%
Expected term
0.62 years0.86 years
Risk-free interest rate
4.8%4.6%