Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2015

Stock-Based Compensation [Abstract]

Schedule of share option activity

	Nine months ended September 30,
		2015					2014
		Unaudited					Unaudited
					Weighted					Weighted
					average					average
		Number			exercise		Number			exercise
		of options			price		of options			price
					$					$
Outstanding at the beginning of the year			28,603,000			0.18		12,915,261			0.27
Granted*			7,530,000			0.50		17,660,000			0.11
Exercised			(150,000	)		0.10		(10,000	)		0.10
Forfeited			(2,050,815	)		0.25		(753,333	)		0.10
Expired			(2,395,852	)		0.09		(722,261	)		0.51
Outstanding as of September 30, 2015			31,536,333			0.26		29,089,667			0.17
Options exercisable at the end of the half year			17,876,833			0.11		12,013,833			0.10

* The fair value of each option granted is estimated on the date of grant, using the Black-Scholes option-pricing model with the following weighted average assumptions: dividend yield of 0% for all years; expected volatility - 85%; risk-free interest rate - 1.0%; expected life 5 years.