Warrants (Tables)

12 Months Ended

Dec. 31, 2015

Warrants and Rights Note Disclosure [Abstract]

Schedule of Fair Value of Warrants Estimated Using Black-Scholes Option Pricing Model

The fair value of the warrants was estimated using a Black-Scholes option pricing model utilizing the following assumptions at the indicated dates:

	December 2015 (modification date)		December 31, 2014		December 31, 2013
Risk-free interest rate	1.54 - 1.63	%	1.67	%	2.16	%
Expected volatility	20.72 - 21.04	%	24.18	%	33.80	%
Expected term (years)	4 - 5		5 - 6		6 - 7
Dividend yield	0.95 - 0.96	%	1.03	%	0.93	%