Net Loss Per Common Share (Tables)

9 Months Ended

Sep. 30, 2015

Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	September 30,	September 30,
	2015	2014
Warrants	2,191,487	2,191,487
Options	1,721,096	1,821,142
Series A Preferred Stock	933,333	933,333
Series E Preferred Stock	7,254,997	7,559,998
Convertible promissory notes	1,947,053	1,878,481
Total	14,047,966	14,384,441

Unissued Common Stock for Possible Future Issuance [Table Text Block]

	September 30,	September 30,
	2015	2014
Exercise of stock warrants	2,191,487	2,191,487
Exercise and future grants of stock options	3,928,870	3,985,605
Conversion of preferred stock	8,188,330	8,493,331
Issuable shares from conversion of promissory notes payable	1,947,053	1,878,481
Total	16,255,740	16,548,904