|
Note 2 - Basis of Presentation and Summary of Significant Accounting Policies (Details) - Anti-dilutive Securities
|
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2013
|
Mar. 31, 2012
|
|
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Antidilutive securities | 20,298,130 | 11,942,830 |
|
Equity Option [Member]
|
||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Antidilutive securities | 6,442,127 | 3,503,811 |
|
Warrant [Member]
|
||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Antidilutive securities | 13,313,678 | 4,776,982 |
|
Convertible Debt Securities [Member]
|
||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Antidilutive securities | 542,325 | 3,662,037 |