Property, Equipment and Leasehold Improvements, Net - Summary of Property, Equipment and Leasehold Improvements, Net (Detail) - USD ($) $ in Thousands |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|
| Property Plant And Equipment [Line Items] | ||
| Property, equipment and leasehold improvements | $ 385 | $ 350 |
| Less: Accumulated depreciation and amortization | (228) | (134) |
| Total property, equipment and leasehold improvements, net | 157 | 216 |
| Computer, Website Development And Office Equipment [Member] | ||
| Property Plant And Equipment [Line Items] | ||
| Property, equipment and leasehold improvements | 308 | 263 |
| Furniture And Fixtures [Member] | ||
| Property Plant And Equipment [Line Items] | ||
| Property, equipment and leasehold improvements | 41 | 41 |
| Leasehold Improvements [Member] | ||
| Property Plant And Equipment [Line Items] | ||
| Property, equipment and leasehold improvements | 29 | 29 |
| Construction in Progress [Member] | ||
| Property Plant And Equipment [Line Items] | ||
| Property, equipment and leasehold improvements | $ 7 | $ 17 |