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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, 2023	Dec. 31, 2022
Reconciliation Of Income Taxes [Line Items]
Income tax benefit at U.S. statutory rate		$ (2,061)	$ (1,693)
State taxes, net of valuation allowance		(339)	79
Foreign tax differential		3	(150)
Non-deductible transaction costs		(29)	16
Stock-based compensation	[1]	101	190
Gain on CARES Act loan			32
Valuation allowance		2,307	1,815
Tax credits		(282)	(237)
Other expenses		394	132
Total income tax expense		$ 94	$ 184
[1] Includes non-deductible stock-based compensation and excess tax benefits and shortfalls from stock-based compensation.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses.

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