Leases - Maturities of lease liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Leases [Abstract]
2024	$ 289
2025	299
2026	308
2027	303
2028	123
Thereafter	190
Total lease payments	1,512
Less: interest	207
Total lease obligations	1,305	$ 1,408
2024	1
2025	0
2026	0
2027	0
2028	0
Thereafter	0
Total lease payments	1
Less: interest	0
Total lease obligations	$ 1	$ 2