Accrued Expenses and Other Current Liabilities (Tables)

12 Months Ended

Dec. 31, 2017

Payables And Accruals [Abstract]

Summary of Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consist of the following:

	December 31,
	2017		2016
	(in thousands)
Accrued compensation	$	5,428	$	2,480
Accrued professional fees		3,281		417
Accrued vacation		33		589
Other current liabilities		156		948
Total accrued expenses and other current liabilities	$	8,898	$	4,434