Annual report pursuant to Section 13 and 15(d)

SIGNIFICANT ACCOUNTING POLICIES - Restatement of Previously Issued Financial Statements (Details)

v3.21.1
SIGNIFICANT ACCOUNTING POLICIES - Restatement of Previously Issued Financial Statements (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 18, 2020
Dec. 31, 2018
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Warrant, outstanding (in shares) 17,900,000      
Statement of Financial Position [Abstract]        
Warrant liability $ 19,061 [1] $ 0 $ 29,841  
Current liabilities 29,225 [1] 6,096    
Total liabilities 70,628 [1] 45,524    
Additional paid-in capital 164,264 [1] 77,431    
Accumulated deficit (69,014) [1] (31,933)    
Total equity attributable to shareholders 95,250 [1] 45,498    
Income Statement [Abstract]        
Revenue 12,117 [1] 7,834    
Loss from operations (28,528) [1] (36,540)    
Gain on remeasurement of warrant liability 10,780 [1],[2] 0    
Net loss [2] (25,895) [1] $ (45,980)    
Net loss attributable to common shareholder - basic and diluted $ (36,114)      
Basic and diluted earnings per share (USD per share) $ (3.34) [1] $ (5.06)    
Statement of Cash Flows [Abstract]        
Net loss [2] $ (25,895) [1] $ (45,980)    
Gain on remeasurement of warrant liability 10,780 [1],[2] 0    
Net cash used in operating activities [2] (21,961) (37,052)    
Statement of Stockholders' Equity [Abstract]        
Business combination and PIPE financing 47,794      
Total shareholders' equity 95,250 [1] 50,193   $ 42,613
Common stock warrants        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Warrant, outstanding (in shares)     13,000,000  
Private warrants        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Warrant, outstanding (in shares)     4,900,000  
Additional Paid-in Capital        
Statement of Stockholders' Equity [Abstract]        
Business combination and PIPE financing 47,794      
Total shareholders' equity 164,264 [1] $ 77,431   $ 22,119
Reported        
Statement of Financial Position [Abstract]        
Warrant liability 0      
Current liabilities 10,164      
Total liabilities 51,567      
Additional paid-in capital 194,105      
Accumulated deficit (79,794)      
Total equity attributable to shareholders 114,311      
Income Statement [Abstract]        
Revenue 12,117      
Loss from operations (28,528)      
Gain on remeasurement of warrant liability 0      
Net loss (36,675)      
Net loss attributable to common shareholder - basic and diluted $ (46,894)      
Basic and diluted earnings per share (USD per share) $ (4.34)      
Statement of Cash Flows [Abstract]        
Net loss $ (36,675)      
Gain on remeasurement of warrant liability 0      
Net cash used in operating activities (21,961)      
Statement of Stockholders' Equity [Abstract]        
Total shareholders' equity 114,311      
Reported | Additional Paid-in Capital        
Statement of Stockholders' Equity [Abstract]        
Business combination and PIPE financing $ 77,635      
[1] See Note 3. for information on the restatement adjustment as of December 31, 2020.
[2] See Note 3. for information on the restatement adjustment as of December 31, 2020 and on the reclassification adjustment as of December 31, 2019.