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Income Taxes - Components of Net Deferred Tax Asset or Liability (Detail) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Deferred Tax Assets |  |
Accrued reserves and allowances | $ 5,140 | $ 4,245
Allowance for doubtful accounts | 514 | 500
Inventories | 437 | 335
Property and equipment | 303 |
Intangibles | 5,615 | 4,937
Net operating loss carryforwards | 1,240 | 1,446
Other | 5 | 4
Long-term deferred tax assets | 13,254 | 11,467
Less: Valuation allowance | (1,512) | (1,255)
Net deferred tax assets | 11,742 | 10,212
Deferred Tax Liabilities |  |
Accrued reserves and allowances | (252) | (365)
Property and equipment | (4,176) | (2,091)
Intangibles | (4,307) | (3,850)
Investment in partnership | (11,857) | (10,266)
Other | (325) | (242)
Long-term deferred tax liabilities | (20,917) | (16,814)
Net deferred tax liabilities | $ (9,175) | $ (6,602)

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