Note 16 - Stockholders' Equity (Details) - USD ($)
$ in Thousands |
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12 Months Ended |
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|
Feb. 06, 2013 |
May. 11, 2011 |
Dec. 31, 2013 |
Dec. 31, 2012 |
Dec. 31, 2011 |
Feb. 10, 2011 |
Jul. 12, 2006 |
| Note 16 - Stockholders' Equity (Details) [Line Items] |
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| Number of Shares of Common Stock Subject to Registration Rights Agreement (in Shares) |
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16,250,000
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| Aggregate Amount of Common and Preferred Stock Warrants Rights and Units Registered for Future Issuance |
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$ 50,000
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| At the Market Offering of Common Stock Term |
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3 years
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| At the Market Offering Maximum Shares of Common Stock the Company May Sell (in Shares) |
|
3,000,000
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| Proceeds from Issuance of Common Stock |
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$ 19,292
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| At the Market Offering Aggregate Shares Issued (in Shares) |
3,000,000
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| Stock Issued During Period, Value, New Issues |
$ 37,247
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$ 19,247
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| Net Proceeds from Issuance of Common Stock After Commissions and Fees |
$ 36,127
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| At the Market Offering [Member] |
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| Note 16 - Stockholders' Equity (Details) [Line Items] |
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| Stock Issued During Period, Shares, New Issues (in Shares) |
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1,594,872
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91,143
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1,313,985
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| Proceeds from Issuance of Common Stock |
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$ 19,292
|
$ 1,074
|
$ 15,763
|
|
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| Payments of Stock Issuance Costs |
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|
$ 599
|
$ 33
|
$ 488
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