Accrued Expenses and Other Liabilities (Tables)

3 Months Ended

Mar. 31, 2017

Accrued Expenses and Other Liabilities

Schedule of accrued expenses and other current liabilities

(in thousands)	As of December 31, 2016		As of March 31, 2017
Research and development related costs	$	8,716	$	8,739
Payroll and related costs	2,150		1,461
Accounting, tax and audit services	484		471
Other	1,976		882
Total other current liabilities	$	13,326	$	11,553