Income Taxes - Deferred Income Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Deferred tax assets:
Net operating loss carryforwards	$ 5,846	$ 5,374
Research and AMT credits	3,937	3,742
Stock based compensation	1,831	1,891
Lease Liability	383	611
Section 174 R&D Capitalization	4,159	2,319
Accrued and other	760	1,100
Deferred Tax Assets, Gross	16,916	15,037
Less valuation allowance	(14,578)	(11,884)
Deferred tax assets, net of allowance	2,338	3,153
Deferred tax liabilities:
Fixed assets	(501)	(520)
Goodwill	(468)	(418)
Right-of-use asset	(340)	(556)
Intangible asset	(1,180)	(1,798)
Deferred tax liabilities	(2,489)	(3,292)
Total deferred tax liabilities	$ (151)	$ (139)