Quarterly report [Sections 13 or 15(d)]

Outstanding Debt - 2025 Loan Agreements with Warrants and 2025 Short-term Loan (Details)

v3.25.2
Outstanding Debt - 2025 Loan Agreements with Warrants and 2025 Short-term Loan (Details)
3 Months Ended 6 Months Ended
Jun. 22, 2025
USD ($)
note
$ / shares
shares
May 22, 2025
USD ($)
Oct. 22, 2024
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Debt Instrument [Line Items]              
Warrants value       $ 227,000   $ 227,000  
Debt extinguishment loss       287,000 $ 0 $ 718,000 $ 0
Non-Convertible Promissory Notes              
Debt Instrument [Line Items]              
Number of non-convertible promissory notes issued | note 2            
Debt instrument, term (in months) 12 months            
CEO Loan              
Debt Instrument [Line Items]              
Debt, face amount $ 625,000            
Debt discount $ 125,000            
Interest rate (as a percent) 10.00%            
Proceeds from short-term debt $ 500,000            
CEO Loan | CEO Warrants              
Debt Instrument [Line Items]              
Unvested warrants (in shares) | shares 500,000            
Exercise price of warrants (in dollars per share) | $ / shares $ 0.60            
Warrants term (in years) 5 years            
Warrants value $ 115,000            
Expected dividend yield (per share) 0.00%            
Expected stock price volatility 98.40%            
Risk-free rate of interest 4.00%            
Expected term (years) 5 years            
Unaffiliated Investor Loan              
Debt Instrument [Line Items]              
Debt, face amount $ 625,000            
Debt discount $ 125,000            
Interest rate (as a percent) 10.00%            
Fair value of debt $ 433,000            
Unaffiliated Investor Loan | Unaffiliated Investor Warrants              
Debt Instrument [Line Items]              
Unvested warrants (in shares) | shares 500,000            
Warrants value $ 115,000            
2024 Term Note              
Debt Instrument [Line Items]              
Debt instrument, term (in months)     12 months        
Debt, face amount     $ 500,000        
Interest rate (as a percent)     15.00%        
Extinguishment of debt amount $ 500,000            
Debt extinguishment loss       48,000      
Debt instrument, periodic payment terms, balloon payment to be paid     $ 506,250        
2025 Short Term Note              
Debt Instrument [Line Items]              
Proceeds from short-term debt   $ 200,000          
Debt instrument, periodic payment terms, balloon payment to be paid   $ 250,000          
Interest expense       $ 46,000