Net Loss Per Share of Common Stock (Details Textual) - shares |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2015 |
Jun. 30, 2014 |
|
| Stock Option and Warrants [Member] | ||||
| Net Loss Per Common Share (Textual) | ||||
| Shares issuable excluded from computation of diluted net loss per share | 46,722,228 | 16,917,278 | 46,722,228 | 16,917,278 |