Annual report pursuant to Section 13 and 15(d)

Convertible Notes - Narrative (Details)

v3.23.1
Convertible Notes - Narrative (Details)
1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Jan. 30, 2023
USD ($)
shares
Nov. 04, 2022
USD ($)
shares
Feb. 28, 2023
USD ($)
shares
Dec. 31, 2022
USD ($)
$ / shares
Dec. 31, 2022
USD ($)
$ / shares
Dec. 31, 2022
USD ($)
day
$ / shares
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Mar. 30, 2023
USD ($)
Dec. 19, 2022
USD ($)
Jun. 28, 2022
USD ($)
Debt Instrument [Line Items]                      
Debt instrument partial redemption (in days)           3 days          
Debt instrument full redemption (in days)           10 days          
Proceeds from YA II Convertible Debenture           $ 50,000,000 $ 0 $ 0      
Change in fair value of convertible notes           (9,101,000) 0 $ 0      
Level 3 | Fair Value, Recurring                      
Debt Instrument [Line Items]                      
Convertible notes, net       $ 79,399,000 $ 79,399,000 79,399,000          
Shares related to Convertible Notes                      
Debt Instrument [Line Items]                      
Principal balance of debt       43,500,000 43,500,000 43,500,000          
Interest payable       1,331,000 1,331,000 1,331,000 0        
Shares related to Convertible Notes | November VIL Convertible Note                      
Debt Instrument [Line Items]                      
Interest payable       233,000 233,000 233,000 0        
Shares related to Convertible Notes | December VIL Convertible Note                      
Debt Instrument [Line Items]                      
Interest payable       $ 40,000 $ 40,000 $ 40,000 $ 0        
2022 Convertible Notes                      
Debt Instrument [Line Items]                      
Debt conversion amount                     $ 2,700,000
Conversion price (in dollar per share) | $ / shares       $ 4.64 $ 4.64 $ 4.64          
Debt instrument conversion rate (as a percent)       95.00% 95.00% 95.00%          
Threshold percentage of stock price trigger (as a percent)           9.99%          
Debt instrument, convertible, threshold trading days (in days)           65 days          
Redemption price (as a percent)       5.00% 2.50%            
Repayment trigger number of trading days (in days) | day           7          
Repayment trigger consecutive number of trading days (in days) | day           10          
Repayment of principal       $ 4,000,000 $ 4,000,000 $ 4,000,000          
Redemption premium (as a percent)           5.00%          
Reducing the floor price (as a percent)           85.00%          
Stock price floor trigger (in dollars per share) | $ / shares       $ 1.00 $ 1.00 $ 1.00          
Debt instrument, convertible, threshold consecutive trading days (in days) | day           5          
Proceeds from YA II Convertible Debenture           $ 50,000,000          
2022 Convertible Notes | Level 3 | Fair Value, Recurring                      
Debt Instrument [Line Items]                      
Convertible notes, net       $ 79,400,000 $ 79,400,000 $ 79,400,000          
2022 Convertible Notes | Minimum                      
Debt Instrument [Line Items]                      
Conversion price (in dollar per share) | $ / shares       $ 1.51 $ 1.51 $ 1.51          
Repayment trigger threshold common stock price (in dollars per share) | $ / shares       $ 1.51 $ 1.51 $ 1.51          
2022 Convertible Notes | Shares related to Convertible Notes                      
Debt Instrument [Line Items]                      
Debt face amount                     $ 50,000,000
Debt instrument, interest rate (as a percent)       6.00% 6.00% 6.00%          
Remaining balance       $ 43,500,000 $ 43,500,000 $ 43,500,000          
Senior Unsecured Convertible Note | Shares related to Convertible Notes                      
Debt Instrument [Line Items]                      
Debt instrument, interest rate (as a percent)   6.00%                  
Redemption price (as a percent)   100.00%                  
Debt instrument, interest rate in event of default (as a percent)   10.00%                  
Initial conversion rate (in shares) | shares   0.3455425                  
Debt instrument accrued and unpaid interest rate (as a percent)   100.00%                  
Senior Unsecured Convertible Note | Shares related to Convertible Notes | VIL                      
Debt Instrument [Line Items]                      
Debt face amount   $ 25,000,000               $ 20,000,000.0  
Senior Unsecured Convertible Note | Shares related to Convertible Notes | November VIL Convertible Note                      
Debt Instrument [Line Items]                      
Shares issued upon conversion (in shares) | shares   8,638,563                  
Senior Unsecured Convertible Note | Shares related to Convertible Notes | December VIL Convertible Note                      
Debt Instrument [Line Items]                      
Shares issued upon conversion (in shares) | shares   6,910,850                  
Senior Unsecured Convertible Note | Shares related to Convertible Notes | Minimum                      
Debt Instrument [Line Items]                      
Proceeds from convertible debt into common stock   $ 50,000,000                  
Senior Unsecured Convertible Note | Shares related to Convertible Notes | Maximum                      
Debt Instrument [Line Items]                      
Proceeds from convertible debt into common stock   50,000,000                  
Senior Secured Convertible Note | Shares related to Convertible Notes                      
Debt Instrument [Line Items]                      
Debt face amount   $ 25,000,000               $ 20,000,000  
Senior Secured Convertible Note | Shares related to Convertible Notes | Subsequent Event                      
Debt Instrument [Line Items]                      
Debt face amount $ 10,000,000   $ 5,000,000           $ 10,900,000    
Debt instrument, interest rate (as a percent)     12.00%                
Redemption price (as a percent)     100.00%                
Debt instrument, interest rate in event of default (as a percent)     16.00%                
Initial conversion rate (in shares) | shares 0.3455425                    
Debt instrument accrued and unpaid interest rate (as a percent)     100.00%                
Shares issued upon conversion (in shares) | shares     5,183,137                
Senior Secured Convertible Note | Shares related to Convertible Notes | Minimum | Subsequent Event                      
Debt Instrument [Line Items]                      
Proceeds from convertible debt into common stock     $ 50,000,000                
Senior Secured Convertible Note | Shares related to Convertible Notes | Maximum | Subsequent Event                      
Debt Instrument [Line Items]                      
Proceeds from convertible debt into common stock     $ 50,000,000