Lease (Tables)

12 Months Ended

Dec. 31, 2021

Leases [Abstract]

Schedule of right-of-use assets and liabilities

(in thousands, except years and rate)	December 31, 2021			December 31, 2020
Right-of-use asset (La Jolla lease)	$	118		$	156
Right-of-use asset (Boca Raton lease)		608			-
Total	$	726		$	156
Operating lease, current liability (La Jolla lease)	$	52		$	8
Operating lease, current liability (Boca Raton lease)		20			-
Total		72			8
Long-term operating lease liability (La Jolla lease)		84			160
Long-term operating lease liability (Boca Raton lease)		620			-
		704			160
Total lease liability	$	776		$	168
Weighted-average remaining lease term		4.6 years			4.5 years
Weighted-average discount rate		11.70	%		10.00	%