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Loss from Continuing Operations Before Provision for Income Taxes (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Income Tax Disclosure [Abstract]    
United States $ (1,173) $ (38,891)
Foreign (2,985) (5,044)
Loss before provision for income taxes $ (4,158) $ (43,935)