Quarterly report pursuant to Section 13 or 15(d)

Accrued Expenses and Other Long-Term Liabilities - Components of Accrued Expenses and Other Long-Term Liabilities (Detail)

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Accrued Expenses and Other Long-Term Liabilities - Components of Accrued Expenses and Other Long-Term Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Accrued expenses:    
Salaries, bonuses and related benefits $ 739 $ 1,064
Severance 554 354
Professional fees 328 320
Research and development expenses 1,038 403
Other 138 44
Total accrued expenses 2,797 2,185
Other long-term liabilities:    
Hercules Note, end of term obligation 398 398
Ovamed manufacturing rights 1,109 1,043
Total other long-term liabilities $ 1,507 $ 1,441