Quarterly report pursuant to Section 13 or 15(d)

Notes Payable - Narratives (Details)

v3.22.1
Notes Payable - Narratives (Details)
$ / shares in Units, $ in Thousands
 1 Months Ended
Nov. 03, 2021
USD ($)
$ / shares
shares
Jan. 29, 2020
USD ($)
$ / shares
May 31, 2021
USD ($)
shares
Mar. 31, 2022
USD ($)
$ / shares
Dec. 31, 2021
USD ($)
Dec. 29, 2020
USD ($)
$ / shares
Debt Instrument [Line Items]            
Secured convertible notes       $ 9,851 $ 9,838  
Security Purchase Agreement | First Closing Notes            
Debt Instrument [Line Items]            
Debt related commitment fees and debt issuance costs     $ 200      
Security Purchase Agreement | First Closing Notes | Convertible Debt            
Debt Instrument [Line Items]            
Secured convertible notes       100 $ 200  
Debt instrument, conversion price (in usd per share) | $ / shares   $ 6.00        
Debt instrument, conversion amount     $ 7,500      
Debt conversion, shares issued (in shares) | shares     1,256,143      
Debt instrument, face amount   $ 17,500        
Accrued Interest Included in the Conversion of Debt     $ 40      
Debt Instrument, Basis Spread on Variable Rate   2.00%        
Debt Instrument, Variable Interest Rate   0.02        
Security Purchase Agreement | Second Closing Note | Convertible Debt            
Debt Instrument [Line Items]            
Secured convertible notes $ 3,100          
Debt conversion, shares issued (in shares) | shares 773,446,000          
Additional rights, principal amount   $ 5,000        
Amount of accrued and paid-in-kind interest included in converted debt $ 300          
Share price (in usd per share) | $ / shares $ 14.34          
Security Purchase Agreement | Third Closing Note | Convertible Debt            
Debt Instrument [Line Items]            
Additional rights, principal amount   $ 10,000        
Security Purchase Agreement | Investor | 2020 Convertible Notes | Convertible Debt            
Debt Instrument [Line Items]            
Secured convertible notes       $ 10,000    
Debt instrument, conversion price (in usd per share) | $ / shares       $ 6.00    
Security Purchase Agreement Amended | Second Closing Note | Convertible Debt            
Debt Instrument [Line Items]            
Debt instrument, conversion price (in usd per share) | $ / shares           $ 10.14
Debt instrument, face amount $ 7,500         $ 7,500
Cash interest rate           2.00%
Payment in-kind interest rate           5.00%