Accounts Payable (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Accounts Payable [Line Items]
Accounts payable, current	$ 827	$ 667
Accounts Payable [Member]
Accounts Payable [Line Items]
Accounts payable, current	800	700
Drug manufacturing, development and testing services	500	600
Clinical trial expenses	$ 300
Legal and patent fees		$ 100