Fair Value Measurements Fair Value Inputs, Shareholders' Equity, Quantitative Information (Tables)

12 Months Ended

Dec. 31, 2016

Warrant [Member]

Fair Value Inputs, Equity, Quantitative Information [Line Items]

Fair Value Inputs, Instruments Classified in Shareholders' Equity, Quantitative Information [Table Text Block]

The fair value of the Warrants to purchase shares of the Company's common stock issued in connection with the closing of the Company's new Credit Facilities in December 2016, which falls within Level 3 of the fair value hierarchy, was estimated using the Black-Scholes option-pricing model with the following assumptions:

Expected volatility	97.90	%
Risk-free interest rate	1.03	%
Expected life (in years)	1.5
Expected dividend yield	—