Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2016

Fair Value Disclosures [Abstract]

Summary of Financial Instruments Measured on a Recurring Basis

The following table summarizes the conclusions reached as of June 30, 2016 and December 31, 2015 for financial instruments measured at fair value on a recurring basis:

			Fair Value Hierarchy Classification
	Balance		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
December 31, 2015
Cash on deposit	$	46,935	$	46,935	—	—
Money market funds	50		50		—	—
Total assets	$	46,985	$	46,985	—	—
June 30, 2016
Cash on deposit	$	37,865	$	37,865	—	—
Total assets	$	37,865	$	37,865	—	—
Warrant liability	4,594		—		—	4,594
Total liabilities	$	4,594	—		—	$	4,594