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Computation of Income Tax Expense (Benefit) from Continuing Operations Using Federal Statutory Rate (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Reconciliation Of Income Taxes [Line Items]    
Income tax benefit at U.S. statutory rate $ (1,693) $ (873)
State taxes, net of valuation allowance 79 (448)
Foreign tax differential (150) (747)
Non-deductible transaction costs 16 (1)
Stock-based compensation [1] 190 434
Gain on CARES Act loan 32 (1,089)
Valuation allowance 1,815 3,334
Goodwill impairment   98
Tax credits (237) (544)
Other expenses 132 68
Total income tax expense (benefit) $ 184 232
As Adjusted    
Reconciliation Of Income Taxes [Line Items]    
Income tax benefit at U.S. statutory rate   (873)
State taxes, net of valuation allowance   313
Foreign tax differential   (747)
Non-deductible transaction costs   2,496
Stock-based compensation [1]   1,985
Gain on CARES Act loan   (1,089)
Valuation allowance   (1,474)
Goodwill impairment   98
Tax credits   (544)
Other expenses   67
Total income tax expense (benefit)   $ 232
[1] Includes non-deductible stock-based compensation and excess tax benefits and shortfalls from stock-based compensation.