|
Note 2 - Summary of Significant Accounting Policies (Detail) - Anti-dilutive Securities
|
6 Months Ended | |
|---|---|---|
|
Jun. 30, 2012
|
Jun. 30, 2011
|
|
| Antidilutive securities | 16,657,470 | 12,723,219 |
|
Stock Options [Member]
|
||
| Antidilutive securities | 6,111,127 | 3,762,477 |
|
Warrant [Member]
|
||
| Antidilutive securities | 6,258,648 | 435,986 |
|
Convertible Debt Securities [Member]
|
||
| Antidilutive securities | 4,287,695 | 8,524,756 |