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Note 3 - Fair Value of Financial Instruments (Details) - Changes in Balance of Level 3 Liabilities (USD $)
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12 Months Ended | |
|---|---|---|
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Dec. 31, 2013
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Dec. 31, 2012
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| Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Beginning Balance | $ 6,392,652 | |
| Net Change in Unrealized (Gains) Losses | (355,352) | |
| Reduction | (6,037,300) | |
| Warrant Liability [Member] | ||
| Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Beginning Balance | 6,392,652 | |
| Net Change in Unrealized (Gains) Losses | (355,352) | |
| Reduction | $ (6,037,300) |