Lease (Details) - Schedule of right-of-use assets and liabilities - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Lease (Details) - Schedule of right-of-use assets and liabilities [Line Items]
Right-of-use asset	$ 726	$ 156
Operating lease, current liability	72	8
Long-term operating lease liability	704	160
Total lease liability	$ 776	$ 168
Weighted-average remaining lease term	4 years 7 months 6 days	4 years 6 months
Weighted-average discount rate	11.70%	10.00%
La Jolla lease [Member]
Lease (Details) - Schedule of right-of-use assets and liabilities [Line Items]
Right-of-use asset	$ 118	$ 156
Operating lease, current liability	52	8
Long-term operating lease liability	84	160
Boca Raton lease [Member]
Lease (Details) - Schedule of right-of-use assets and liabilities [Line Items]
Right-of-use asset	608
Operating lease, current liability	20
Long-term operating lease liability	$ 620