Fair Value of Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2017

Fair Value Disclosures [Abstract]

Schedule of Fair Value of Financial Liabilities

The following table sets forth the fair value of the Company’s financial liabilities by level within the fair value hierarchy (in thousands):

	At September 30, 2017
	Level 1		Level 2		Level 3		Total
2017 Placement Warrants Liability	$	—	$	—	$	7,127	$	7,127
2016 Placement Warrants Liability		—		—		5,708		5,708
Total	$	—	$	—	$	12,835	$	12,835

	At December 31, 2016
	Level 1		Level 2		Level 3		Total
2016 Placement Warrants Liability	$	—	$	—	$	2,723	$	2,723

Summary of Changes in Fair Value of Level 3 Financial Liabilities

The following table sets forth a summary of the changes in fair value of the Company’s Level 3 financial liabilities (in thousands):

	Nine Months Ended September 30,
	2017		2016
Fair value, beginning of period	$	2,723	$	—
Issuance of 2016 Placement Warrants		—		2,726
Issuance of 2017 Placement Warrants		3,373		—
Change in fair value of Level 3 financial liabilities		6,739		1,646
Fair value, end of period	$	12,835	$	4,372