Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2015

Below is a summary of assets and liabilities measured at fair value on a recurring basis (in thousands):

	As of December 31, 2015
	Quoted Prices in Active Markets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Assets:
Money market funds	$	62,004	$	—	$	—	$	62,004

Total	$	62,004	$	—	$	—	$	62,004

	As of December 31, 2014
	Quoted Prices in Active Markets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Assets:
Money market funds	$	13,506	$	—	$	—	$	13,506

Total	$	13,506	$	—	$	—	$	13,506


Liabilities:
Warrant Liability	$	—	$	—	$	108	$	108

Total	$	—	$	—	$	108	$	108