Leases - Schedule of Right-of-Use Assets and Lease Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Lessee Lease Description [Line Items]
Right-of-use assets	$ 2,377	$ 2,539
Lease liabilities	2,489	2,648
Del Mar, CA [Member]
Lessee Lease Description [Line Items]
Right-of-use assets	161	203
Lease liabilities	147	186
Hayward, CA [Member]
Lessee Lease Description [Line Items]
Right-of-use assets	1,527	1,594
Lease liabilities	1,455	1,525
San Diego, CA [Member]
Lessee Lease Description [Line Items]
Right-of-use assets	470	498
Lease liabilities	447	477
Edwardsville, IL [Member]
Lessee Lease Description [Line Items]
Right-of-use assets	331	353
Lease liabilities	$ 328	$ 351