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Other Current Assets (Detail) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | --- | ---
Other Assets [Abstract] |  |  |  |
Loans receivable - current | $ 29 | $ 33 |  |
Less: Allowance for loans receivable - current | (29) | (33) | $ (32) | $ (30)
Other receivable | 374 |  |  |
Other | 136 | 155 |  |
Other current assets | $ 510 | $ 155 |  |

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