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Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Deferred tax assets (liabilities) |  |
Accrued expenses | $ 7,981 | $ 8,033
Net operating loss and credit carryforward | 20,087 | 19,805
Allowance, reserves and other | 1,984 | 3,490
Stock-based compensation | 3,257 | 3,253
Lease liability | 1,627 |
Deferred tax assets | 34,936 | 34,581
Property, plant, and equipment | (2,961) | (4,683)
Intangible amortization | (16,192) |
Right-of-use asset | (1,418) |
Deferred tax liabilities | (20,571) | (4,683)
Total | $ 14,365 | $ 29,898

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