Accrued Expense (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Accrued expense	$ 675	$ 909
Accrued Expenses
Accrued expense	700	900
Vacation and bonus expenses	400	400
Professional and consulting fees	100	100
Legal and patent fees	100	100
Other expenses	$ 100	100
Manufacturing expenses		$ 200