Income Taxes - Components of Net Accumulated Deferred Income Tax Assets (Liabilities) (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets (liabilities):
Stock-based compensation	$ 1,085	$ 1,299
Depreciation and amortization	(3,635)	(3,319)
Legal accrual	653
Net operating loss carryforward	17,159	16,427
Charitable carryforward	3	15
Right of use lease asset	(1,596)	(1,771)
Long-term lease	1,460	1,628
Other	187	446
Tax credits	300	300
Valuation allowance	(16,115)	(15,334)
Total deferred tax liabilities, net of valuation allowance	$ (499)	$ (309)