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Significant Components of Company's Deferred Tax Assets (Detail) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Deferred tax assets |  |
Operating loss carryforward | $ 9,066 | $ 8,933
Accrued expenses | 1,165 | 706
Temporary differences related to R&D expenses | 1,052 | 922
Equity-based compensation | 2,625 | 2,563
Tax credit carry forward | 875 | 800
Other | 529 | 273
Total gross deferred tax assets | 15,312 | 14,197
Valuation allowance | (12,740) | (11,930)
Net deferred tax assets | 2,572 | 2,267
Deferred tax liabilities |  |
Intangible assets | 915 | 1,843
Other | 29 | 26
Total deferred tax liabilities | 944 | 1,869
Net deferred tax assets | $ 1,628 | $ 398

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=51675352&loc=d3e28680-109314 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 + Details
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