Prepaid Expenses and Other Current Assets

12 Months Ended

Dec. 31, 2018

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Prepaid Expenses and Other Current Assets

Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets as of December 31, 2018 and 2017 were comprised as follows (in thousands):

	December 31,
	2018		2017
Prepaid expenses	$	1,921	$	2,196
Taxes receivable	—		16,737
Interest receivable on investments	414		969
Other current assets	—		43
Total prepaid expenses and other current assets	$	2,335	$	19,945

Taxes receivable decreased from December 31, 2017 to December 31, 2018 due to the Company’s receipt of $16.8 million in federal and state income tax refunds during the year ended December 31, 2018.