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Note 13 - Preferred Stock and Warrants (Details) - USD ($) |  |  |  |  |  | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Nov. 02, 2015 | Oct. 31, 2014 | Jun. 14, 2013 | Oct. 01, 2011 | Jul. 14, 2011 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Nov. 18, 2011
Note 13 - Preferred Stock and Warrants (Details) [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Preferred Stock and Preference Stock (in Dollars) |  |  |  |  |  |  | $ 15,300,000 |  |
Preferred Stock, Shares Outstanding |  | 15,300 |  |  |  |  |  |  |
Business Combination Shares Per Acquirees Common Stock (in Dollars per share) |  | $ 1 |  |  |  |  |  |  |
Stock Redeemed or Called During Period, Value (in Dollars) |  |  |  |  |  | $ 71,900,000 |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights |  |  |  |  |  |  |  |  | 423,977
|  |  | 10.00% |  |  |  |  | 10.00% |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share) |  |  |  |  |  |  |  |  | $ 6.76
Series B Preferred Stock [Member] |  |  |  |  |  |  |  |  |
Note 13 - Preferred Stock and Warrants (Details) [Line Items] |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues |  |  |  |  | 56,600 |  |  |  |
Proceeds from Issuance of Preferred Stock and Preference Stock (in Dollars) |  |  |  |  | $ 56,600,000 |  |  |  |
Preferred Stock, Dividend Rate, Percentage |  |  |  | 1.00% |  |  |  |  |
Preferred Stock, Shares Outstanding |  |  |  |  |  | 0 | 56,600 |  |
Stock Redeemed or Called During Period, Shares | 56,600 |  |  |  |  |  |  |  |
Series C Preferred Stock [Member] |  |  |  |  |  |  |  |  |
Note 13 - Preferred Stock and Warrants (Details) [Line Items] |  |  |  |  |  |  |  |  |
Preferred Stock, Dividend Rate, Percentage |  | 1.00% |  |  |  |  |  |  |
Preferred Stock, Shares Outstanding |  |  |  |  |  | 0 | 15,300 |  |
Stock Redeemed or Called During Period, Shares | 15,300 |  |  |  |  |  |  |  |
Preferred Stock, Series B & C [Member] |  |  |  |  |  |  |  |  |
Note 13 - Preferred Stock and Warrants (Details) [Line Items] |  |  |  |  |  |  |  |  |
Stock Redeemed or Called During Period, Value (in Dollars) | $ 71,960,000 |  |  |  |  |  |  |  |

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