Prepaid Expenses and Other Current Assets (Tables)

6 Months Ended

Jun. 30, 2018

Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]

Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consisted of the following as of June 30, 2018 and December 31, 2017:

(In thousands)	June 30, 2018		December 31, 2017
Prepaid expenses	$	2,306	$	2,359
Deposits		66		66
Interest receivable on marketable securities		635		978
Total prepaid expenses and other current assets	$	3,007	$	3,403