Prepaid Expenses, Other Current Assets, and Other Assets (Tables)

12 Months Ended

Dec. 31, 2017

Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]

Prepaid Expenses and Other Current Assets and Other Assets

Prepaid expenses and other current assets and other assets consisted of the following as of December 31, 2017 and 2016:

	December 31,
(in thousands)	2017		2016
Prepaid expenses	$	2,359	$	1,086
Deposits		66		2,099
Interest receivable on marketable securities		978		605
Total prepaid expenses and other current assets	$	3,403	$	3,790