Accrued Expense (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Accrued expenses	$ 1,346	$ 909
Current Liabilities
Accrued expenses	1,300	900
Accrued clinical trial fees	800
Accrued drug manufacturing		200
Accrued employee vacation and bonus	200	400
Accrued professional and consulting fees	100	100
Legal and patent fees	100	100
Other accrued expenses	$ 100	$ 100