Quarterly report pursuant to Section 13 or 15(d)

Outstanding Debt (Details)

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Outstanding Debt (Details)
3 Months Ended
Feb. 16, 2024
USD ($)
Feb. 14, 2024
USD ($)
Dec. 20, 2023
USD ($)
Jan. 26, 2023
USD ($)
Mar. 31, 2024
USD ($)
Mar. 31, 2023
USD ($)
Dec. 31, 2023
USD ($)
Jan. 27, 2023
$ / shares
shares
Feb. 28, 2022
Short-Term Debt [Line Items]                  
Proceeds from issuance of note payable         $ 2,460,000 $ 7,600,000      
Short-term debt         2,381,000   $ 0    
Discount, current         $ 396,000   396,000    
Expected stock price volatility         79.60% 80.90%      
Risk-free rate of interest         4.20% 3.80%      
2024 Future Receipts Financing | Loans Payable                  
Short-Term Debt [Line Items]                  
Proceeds from issuance of note payable $ 2,500,000                
Origination fee $ 50,000                
Periodic payment   $ 247,000              
Debt, face amount   $ 3,000,000              
Discount factor, period   6 months              
Amortization of debt discount         $ 106,000        
Short-term debt         2,400,000        
Discount, current         396,000        
2024 Future Receipts Financing | Loans Payable | Minimum [Member]                  
Short-Term Debt [Line Items]                  
Debt instrument, measurement input   1.075              
2024 Future Receipts Financing | Loans Payable | Maximum [Member] | Measurement Input, Discount Rate                  
Short-Term Debt [Line Items]                  
Debt instrument, measurement input   1.165              
2024 Future Receipts Financing - Addendum, First Two Months | Loans Payable                  
Short-Term Debt [Line Items]                  
Periodic payment   $ 185,000              
2024 Future Receipts Financing - Addendum, Remaining Ten Months | Loans Payable                  
Short-Term Debt [Line Items]                  
Periodic payment   $ 259,000              
2023 Secured Mortgage Loan | Secured Debt                  
Short-Term Debt [Line Items]                  
Periodic payment     $ 25,000            
Debt, face amount     $ 3,300,000            
Interest rate (as a percent)     8.25%            
Debt issuance costs     $ 341,000            
Escrow deposit         561,000   $ 540,000    
JXVII Note | Unsecured Debt                  
Short-Term Debt [Line Items]                  
Debt, face amount       $ 7,600,000          
Unpaid balance         7,400,000        
JXVII Note | Unsecured Debt | Letter Agreement                  
Short-Term Debt [Line Items]                  
Interest rate (as a percent)                 10.00%
JXVII Note | Unsecured Debt | 2023 Notes Warrants                  
Short-Term Debt [Line Items]                  
Warrants (in shares) | shares               76,000  
Exercise price (in price per share) | $ / shares               $ 9.00  
Weighted average remaining contractual life, options vested and exercisable (in years)       5 years          
Expected stock price volatility       81.50%          
Risk-free rate of interest       3.62%          
Warrants term (in years)       5 years          
Warrant, fair value       $ 380,000          
Debt discount         $ 232,000        
JXVII Note | Unsecured Debt | 2023 Notes Warrants | Black-Scholes Option Pricing Model                  
Short-Term Debt [Line Items]                  
Warrant fair value       $ 400,000