Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Tax credit receivable	$ 372
Prepaid insurance	54	765
Prepaid rent		3
Other prepaid expenses	199	100
Total prepaid expenses and other current assets	$ 625	$ 868