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Significant Components of Company's Deferred Tax Assets (Detail) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Deferred tax assets |  |  |
Operating loss carryforward |  | $ 9,638 | $ 9,066
Accrued expenses |  | 1,128 | 1,165
Temporary differences related to R&D expenses |  | 1,435 | 1,052
Equity-based compensation |  | 2,685 | 2,625
Tax credit carry forward |  | 1,237 | 875
Other |  | 562 | 529
Total gross deferred tax assets |  | 16,685 | 15,312
Valuation allowance |  | (13,780) | (12,740)
Net deferred tax assets |  | 2,905 | 2,572
Deferred tax liabilities |  |  |
Intangible assets |  | 621 | 915
Other |  | 32 | 29
Total deferred tax liabilities |  | 653 | 944
Net deferred tax assets | [1] | $ 2,252 | $ 1,628
[1] | Net deferred taxes for the years ended December 31, 2015 and 2016 are all from foreign jurisdictions.

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