Fair Value of Financial Instruments - Schedule of Financial Assets and Liabilities Measured at Fair Value On a Recurring Basis (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Liabilities:
Warrant liability	$ 17,000	$ 9,000
Cash equivalents - money market funds
Assets:
Cash equivalents - money market funds	0	1,681,000
Fair Value, Recurring
Assets:
Total assets		1,681,000
Liabilities:
Derivative liability	59,000	56,000
Warrant liability	17,000	9,000
Total liabilities	76,000	65,000
Fair Value, Recurring | Level 1
Assets:
Total assets		1,681,000
Liabilities:
Derivative liability	0	0
Warrant liability	0	0
Total liabilities	0	0
Fair Value, Recurring | Level 2
Assets:
Total assets		0
Liabilities:
Derivative liability	0	0
Warrant liability	17,000	9,000
Total liabilities	17,000	9,000
Fair Value, Recurring | Level 3
Assets:
Total assets		0
Liabilities:
Derivative liability	59,000	56,000
Warrant liability	0	0
Total liabilities	59,000	56,000
Fair Value, Recurring | Cash equivalents - money market funds
Assets:
Cash equivalents - money market funds	$ 0	1,681,000
Fair Value, Recurring | Cash equivalents - money market funds | Level 1
Assets:
Cash equivalents - money market funds		1,681,000
Fair Value, Recurring | Cash equivalents - money market funds | Level 2
Assets:
Cash equivalents - money market funds		0
Fair Value, Recurring | Cash equivalents - money market funds | Level 3
Assets:
Cash equivalents - money market funds		$ 0