Consolidated Statements of Shareholders' Equity - USD ($) |
Total |
Common Stock [Member] |
Additional Paid-in Capital [Member] |
Accumulated Deficit [Member] |
|---|---|---|---|---|
| Balance at Dec. 31, 2012 | $ 14,172,675 | $ 2,265 | $ 101,846,779 | $ (87,676,369) |
| Balance, shares at Dec. 31, 2012 | 22,646,782 | |||
| Exercise of options and warrants | 822,969 | $ 18 | 822,951 | |
| Exercise of options and warrants, shares | 179,983 | |||
| Share-based compensation | 2,914,904 | $ 28 | $ 2,914,876 | |
| Share-based compensation, shares | 282,900 | |||
| Net Loss | (6,040,611) | $ (6,040,611) | ||
| Balance at Dec. 31, 2013 | 11,869,937 | $ 2,311 | $ 105,584,606 | $ (93,716,980) |
| Balance, shares at Dec. 31, 2013 | 23,109,665 | |||
| Issuance of Common Stock | 3,278,250 | $ 75 | 3,278,175 | |
| Issuance of Common Stock, shares | 750,000 | |||
| Exercise of options and warrants | $ 304,788 | $ 6 | 304,782 | |
| Exercise of options and warrants, shares | 64,800 | 64,800 | ||
| Share-based compensation | $ 1,042,917 | $ 1,042,917 | ||
| Share-based compensation, shares | ||||
| Net Loss | (4,413,722) | $ (4,413,722) | ||
| Balance at Dec. 31, 2014 | 12,082,170 | $ 2,392 | $ 110,210,480 | $ (98,130,702) |
| Balance, shares at Dec. 31, 2014 | 23,924,465 | |||
| Exercise of options and warrants | $ 548,475 | $ 12 | 548,463 | |
| Exercise of options and warrants, shares | 119,381 | 119,381 | ||
| Share-based compensation | $ 725,016 | $ 725,016 | ||
| Share-based compensation, shares | ||||
| Net Loss | (4,279,856) | $ (4,279,856) | ||
| Balance at Dec. 31, 2015 | $ 9,075,805 | $ 2,404 | $ 111,483,959 | $ (102,410,558) |
| Balance, shares at Dec. 31, 2015 | 24,043,846 |