Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating Loss Carryforwards [Line Items]
Unrecognized tax benefits	$ 412,000	$ 412,000	$ 428,000
Interest and penalties	0	0
Cumulative interest and penalties	$ 0	0
Cumulative loss period	3 years
Valuation allowance	$ 62,698,000	57,346,000
Increase (decrease) in valuation allowance of deferred tax assets	(5,400,000)	7,900,000
Income before provision for income taxes for foreign subsidiaries	486,000	$ 473,000
Income related to GILTI	5,900,000
Federal
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	185,400,000
Tax credit carryforwards	2,500,000
State
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	150,800,000
Tax credit carryforwards	$ 700,000