Income Tax Provision (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current:
State	$ 3	$ (24)	$ (15)
Foreign	98	52	88
Total current	101	28	73
Total income tax provision	$ 101	$ 28	$ 73