Prepaid expenses and other current assets

12 Months Ended

Dec. 31, 2016

Prepaid expense and other current assets

Prepaid expenses and other current assets

4. Prepaid expenses and other current assets

Prepaid expense and other current assets consist of the following:

	As of December 31,
	2016		2015
	(in thousands)
Tenant improvement receivable	$	1,964	$	—
Prepaid research and development contracts		1,094		340
Other current assets		541		382
Accrued interest receivable		339		411
Prepaid insurance		430		424
Total	$	4,368	$	1,557