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Debt - 2019 Exchange Notes (Details)
1 Months Ended 12 Months Ended
Jan. 31, 2021
USD ($)
shares
Dec. 31, 2020
USD ($)
shares
Sep. 30, 2020
USD ($)
$ / shares
shares
May 31, 2019
USD ($)
item
Dec. 31, 2022
USD ($)
shares
Dec. 31, 2021
USD ($)
shares
Convertible Promissory Notes and Common Stock Warrants [Line Items]            
Loss on extinguishment of debt $ (753,000)       $ (2,187,000) $ (753,000)
Outstanding | shares         0 0
Global amendment agreement            
Convertible Promissory Notes and Common Stock Warrants [Line Items]            
Increase in principal debt (in percent)     5.00%      
Increase in principal debt     $ 2,600,000      
Global amendment agreement | Series D perpetual preferred stock            
Convertible Promissory Notes and Common Stock Warrants [Line Items]            
Loss on extinguishment of debt   $ (1,300,000)        
Stock issued during period, shares, new issues | shares     842,500      
Preferred stock dividend rate (as a percent)     8.00%      
Preferred stock dividend payable in arrears     24 months      
Fair Value of stock at inception     $ 6,400,000      
Preferred stock redemption price | $ / shares     $ 8.00      
Shares issued on conversion | shares   70,622        
Shares converted | shares   859,348        
Outstanding | shares         0 0
Global amendment agreement | Series D perpetual preferred stock | Minimum            
Convertible Promissory Notes and Common Stock Warrants [Line Items]            
Effective interest rate     12.00%      
Global amendment agreement | Series D perpetual preferred stock | Maximum            
Convertible Promissory Notes and Common Stock Warrants [Line Items]            
Effective interest rate     15.00%      
December 2020 Purchase Agreement            
Convertible Promissory Notes and Common Stock Warrants [Line Items]            
Principal amount   $ 1,000,000.0        
Exchange Notes            
Convertible Promissory Notes and Common Stock Warrants [Line Items]            
Number of Napo convertible notes | item       2    
2019 Exchange Note 1            
Convertible Promissory Notes and Common Stock Warrants [Line Items]            
Convertible debt payable           $ 0
Exchange Note 2            
Convertible Promissory Notes and Common Stock Warrants [Line Items]            
Principal amount $ 1,800,000     $ 2,300,000    
Common stock issued in exchange of debt | shares 6,283 5,556        
Exchange Note 2 | Global amendment agreement | Series D perpetual preferred stock            
Convertible Promissory Notes and Common Stock Warrants [Line Items]            
Convertible debt payable     $ 0