Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2015

Fair Value Assumptions of Warrants

The fair value of the 2010 Warrants was based on option valuation model and using the following assumptions at December 31, 2015 and 2014:

	December 31, 2015	December 31, 2014
2010 Warrants:
Expected term (in years)	—	0.86
Estimated volatility	—	55%
Risk-free interest rate	—	0.25%
Expected dividend yield	—	—