| Schedule of Quarterly Financial Information [Table Text Block] |
The following represents the Company’s unaudited quarterly results for the years ended December 31: | | | Quarter Ended | | | | | 2013 | | | | | March 31 | | June 30 | | September 30 | | December 31 | | | | | | | | | | | | | | | | | | Revenues | | $ | 102,500 | | $ | 2,500 | | $ | 2,500 | | $ | 2,500 | | | Operating loss | | $ | (2,891,780) | | $ | (3,235,602) | | $ | (3,633,986) | | $ | (2,762,573) | | | Net loss | | $ | (3,590,087) | | $ | (6,251,630) | | $ | (6,686,957) | | $ | (3,303,188) | | | Net loss per share - basic and diluted | | $ | (0.05) | | $ | (0.09) | | $ | (0.09) | | $ | (0.04) | | | | | Quarter Ended | | | | | 2012 | | | | | March 31 | | June 30 | | September 30 | | December 31 | | | | | | | | | | | | | | | | | | Revenues | | $ | 156,250 | | $ | 78,125 | | $ | 170,833 | | $ | 2,500 | | | Operating loss | | $ | (2,463,216) | | $ | (2,383,255) | | $ | (2,583,159) | | $ | (2,726,826) | | | Net loss | | $ | (2,452,781) | | $ | (2,376,381) | | $ | (2,577,391) | | $ | (2,714,964) | | | Net loss per share - basic and diluted | | $ | (0.05) | | $ | (0.04) | | $ | (0.04) | | $ | (0.04) | | |