v3.23.2
Fair Value of Financial Instruments - Assets Measured or Disclosed at Fair Value on Recurring Basis (Details) - USD ($)
Dec. 31, 2022
Dec. 31, 2021
Liabilities:    
Derivative liability $ 760,000 $ 1,820,000
Level 3    
Assets:    
Total assets fair value disclosure 0 0
Fair value measurements recurring    
Assets:    
Money market 52,442,000 42,918,000
Total assets fair value disclosure 52,442,000 42,918,000
Liabilities:    
Derivative liability 760,000 1,820,000
Total liabilities fair value disclosure 760,000 1,820,000
Fair value measurements recurring | Level 1    
Assets:    
Money market 52,442,000 42,918,000
Total assets fair value disclosure 52,442,000 42,918,000
Liabilities:    
Derivative liability 0 0
Total liabilities fair value disclosure 0 0
Fair value measurements recurring | Level 2    
Assets:    
Money market 0 0
Total assets fair value disclosure 0 0
Liabilities:    
Derivative liability 0 0
Total liabilities fair value disclosure 0 0
Fair value measurements recurring | Level 3    
Assets:    
Money market 0 0
Total assets fair value disclosure 0 0
Liabilities:    
Derivative liability 760,000 1,820,000
Total liabilities fair value disclosure $ 760,000 $ 1,820,000