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Note 6 - Share Capital (Details) - Summary Information Regarding Warrants Outstanding (USD $)
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12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Class of Warrant or Right [Line Items] | |||
| Shares Underlying Outstanding Warrants | 8,230,848 | 10,922,090 | 5,922,090 |
| February 2011 Warrants [Member] | |||
| Class of Warrant or Right [Line Items] | |||
| Excercise Prices (in Dollars per share) | $ 3.08 | ||
| Shares Underlying Outstanding Warrants | 48,701 | ||
| Expiry Date | Feb. 08, 2018 | ||
| September 2010 Warrants [Member] | |||
| Class of Warrant or Right [Line Items] | |||
| Excercise Prices (in Dollars per share) | $ 4.24 | 4.24 | |
| Shares Underlying Outstanding Warrants | 3,182,147 | ||
| Expiry Date | Oct. 12, 2015 | ||
| June 2013 Warrants [Member] | |||
| Class of Warrant or Right [Line Items] | |||
| Excercise Prices (in Dollars per share) | $ 5.00 | ||
| Shares Underlying Outstanding Warrants | 5,000,000 | ||
| Expiry Date | Dec. 05, 2018 |