Stock Option Plan and Warrants (Details) - $ / shares	6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Number of shares
Granted		2,899,600
Stock options [Member]
Number of shares
Outstanding at beginning of year	11,103,275	11,033,675	11,033,675
Granted	3,020,134		6,299,600
Exercised
Expired and Cancelled	(3,772,386)		(6,230,000)
Outstanding, end of period	10,351,023		11,103,275
Exercisable at end of period	8,085,923		10,328,925
Weighted average exercise price
Outstanding at the beginning of year	$ 0.78	$ 1.05	$ 1.05
Granted	0.03		0.29
Expired and Cancelled	0.89		0.77
Outstanding, end of period	0.53		0.78
Exercisable at end of the period	$ 0.66		$ 0.82