Net Income / (Loss) Per Common Share (Tables)

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

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

Potential common shares outstanding as of March 31, 2014 and 2013:

	March 31, 2014	March 31, 2013
Warrants	3,224,000	2,435,000
Options	3,206,000	3,426,080