Income Taxes - Components of Net Accumulated Deferred Income Tax Assets (Liabilities) (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets (liabilities):
Stock-based compensation	$ 1,299	$ 1,065
Depreciation and amortization	(3,319)	(1,111)
Section 181 qualified production expense		(3,960)
Net operating loss carryforward	16,427	20,791
Charitable carryforward	15	118
Right of use lease asset	(1,771)
Long-term lease	1,628
Other	446	417
Tax credits	300	276
Valuation allowance	(15,334)	(17,853)
Total deferred tax liabilities, net of valuation allowance	$ (309)	$ (257)