|
Condensed Balance Sheets (Parenthetical) (USD $)
|
Dec. 31, 2014
|
Dec. 31, 2013
|
| Condensed Balance Sheets |
|
|
| Preferred stock, par value (in dollars per share) |
$ 0.001 |
$ 0.001 |
| Preferred stock, shares authorized |
5,000,000 |
5,000,000 |
| Preferred stock, shares issued |
0 |
0 |
| Preferred stock, shares outstanding |
0 |
0 |
| Common stock, par value (in dollars per share) |
$ 0.001 |
$ 0.001 |
| Common stock, shares authorized |
120,000,000 |
120,000,000 |
| Common stock, shares issued |
20,352,876 |
15,357,413 |
| Common stock, shares outstanding |
20,343,325 |
15,340,710 |