Net Loss Per Common Share (Tables)

6 Months Ended

Jun. 30, 2016

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

Potential common shares outstanding as of June 30, 2016 and 2015:

	June 30, 2016		June 30, 2015
Warrants		2,385,000		3,303,000
Options		2,187,000		1,547,000
		4,572,000		4,850,000