Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2016

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

The following table summarizes the Company’s 2016 Warrants measured at fair value within the hierarchy on a recurring basis as of December 31, 2016:

	Fair Value Measurements at
	December 31, 2016
	(in thousands)
	Level 1		Level 2		Level 3		Total
Liabilities:
Warrant liability	$	-	$	-	$	2,906	$	2,906

Fair Value, Instruments Classified in Shareholders' Equity Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

The following table summarizes changes to the fair value of the Level 3 2016 Warrants for the year ended December 31, 2016:

	Fair Value of
	Warrant
	Liability
	(in thousands)
Balance at December 31, 2015	$	-
Issuance		4,619
Change in fair value		(1,713)
Balance at December 31, 2016	$	2,906

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques

The Company utilized the Binomial Lattice Model for estimating the fair value of the 2016 Warrants using the following assumptions as of December 31, 2016:

	As of
	December 31,
	2016
Risk-free interest rate		1.93%
Expected volatility		98%
Expected term in years		5.0
Dividend yield		-%