Quarterly report pursuant to Section 13 or 15(d)

Outstanding Debt (Details)

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Outstanding Debt (Details)
1 Months Ended 3 Months Ended 5 Months Ended 6 Months Ended
Jun. 28, 2024
USD ($)
Jun. 27, 2024
USD ($)
Feb. 16, 2024
USD ($)
Feb. 14, 2024
USD ($)
Dec. 20, 2023
USD ($)
Jan. 26, 2023
USD ($)
$ / shares
shares
Jul. 31, 2024
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2023
USD ($)
Dec. 31, 2023
USD ($)
Short-Term Debt [Line Items]                        
Proceeds from issuance of note payable                   $ 3,868,000 $ 7,600,000  
Amortization of debt discount                   381,000 44,000  
Short-term debt               $ 3,259,000 $ 3,259,000 3,259,000   $ 0
Discount, current               758,000 758,000 758,000   758,000
Repayments of notes                   $ 898,000 $ 0  
Expected stock price volatility                   79.60% 80.50%  
Risk-free rate of interest                   4.20% 3.70%  
2024 Second Future Receipts Financing | Loans Payable                        
Short-Term Debt [Line Items]                        
Proceeds from issuance of note payable $ 1,500,000                      
Origination fee $ 42,000                      
Periodic payment   $ 60,718                    
Debt, face amount   $ 1,900,000                    
Amortization of debt discount               9,000   $ 9,000    
Short-term debt               1,400,000 1,400,000 1,400,000    
Discount, current               548,000 548,000 548,000    
2024 Second Future Receipts Financing | Loans Payable | Subsequent Event                        
Short-Term Debt [Line Items]                        
Brokerage fee paid             $ 22,000          
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       $ 3,000,000.0                
Amortization of debt discount               187,000   293,000    
Short-term debt               1,900,000 1,900,000 1,900,000    
Discount, current               210,000 210,000 210,000    
Repayments of notes                 889,000      
Discount factor, period       6 months                
2024 Future Receipts Financing | Loans Payable | Minimum                        
Short-Term Debt [Line Items]                        
Debt instrument, measurement input       1.075                
2024 Future Receipts Financing | Loans Payable | Maximum | 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              
Amortization of debt discount               6,000   11,000    
Interest rate (as a percent)         8.25%              
Debt issuance costs         $ 341,000              
Debt discount               329,000 329,000 329,000    
Escrow deposit               585,000 585,000 585,000   $ 540,000
JXVII Note | Unsecured Debt                        
Short-Term Debt [Line Items]                        
Debt, face amount           $ 7,600,000            
Outstanding balance               7,400,000 7,400,000 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]                        
Debt discount               $ 198,000 $ 198,000 $ 198,000    
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            
JXVII Note | Unsecured Debt | 2023 Notes Warrants | Black-Scholes Option Pricing Model                        
Short-Term Debt [Line Items]                        
Warrant fair value           $ 400,000