Leases (Tables)

12 Months Ended

Dec. 31, 2021

Leases [Abstract]

Schedule of Right-of-Use Assets and Lease Liabilities

The right-of-use assets and lease liabilities for each location are as follows (in thousands):

Right-of-use assets:	December 31, 2021		December 31, 2020
Del Mar, CA	$	477	$	613
Hayward, CA		2,064		—
Burlingame, CA		—		99
Edwardsville, IL		153		251
	$	2,694	$	963
Lease liabilities:	December 31, 2021		December 31, 2020
Del Mar, CA	$	506	$	641
Hayward, CA		2,089		—
Burlingame, CA		—		109
Edwardsville, IL		155		253
	$	2,750	$	1,003

Schedule of Undiscounted Future Minimum Lease Commitments

Undiscounted future minimum lease commitments as of December 31, 2021 that have initial or remaining lease terms in excess of one year are as follows (in thousands):

2022	$	612
2023		563
2024		532
2025		396
2026		377
Thereafter		687
Total undiscounted future minimum lease payments		3,167
Less: imputed interest		(417	)
Present value of lease liabilities	$	2,750