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Note 13 - Subsequent Event (Details) - USD ($) $ / shares in Units, $ in Thousands | Nov. 02, 2015 | Sep. 30, 2015 | Dec. 31, 2014 | Sep. 30, 2014
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Subsequent Event [Member] |  |  |  |
Note 13 - Subsequent Event (Details) [Line Items] |  |  |  |
Stock Redeemed or Called During Period, Value | $ 71,960 |  |  |
Series B Preferred Stock [Member] |  |  |  |
Note 13 - Subsequent Event (Details) [Line Items] |  |  |  |
Preferred Stock, Liquidation Preference Per Share |  | $ 1,000 | $ 1,000 | $ 1,000
Series B Preferred Stock [Member] | Subsequent Event [Member] |  |  |  |
Note 13 - Subsequent Event (Details) [Line Items] |  |  |  |
Stock Redeemed or Called During Period, Shares | 56,600 |  |  |
Preferred Stock, Liquidation Preference Per Share | $ 1,000 |  |  |
Series C Preferred Stock [Member] |  |  |  |
Note 13 - Subsequent Event (Details) [Line Items] |  |  |  |
Preferred Stock, Liquidation Preference Per Share |  | $ 1,000 | $ 1,000 | $ 1,000
Series C Preferred Stock [Member] | Subsequent Event [Member] |  |  |  |
Note 13 - Subsequent Event (Details) [Line Items] |  |  |  |
Stock Redeemed or Called During Period, Shares | 15,300 |  |  |
Preferred Stock, Liquidation Preference Per Share | $ 1,000 |  |  |

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- Definition The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21484-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(d)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29 -Article 5 + Details
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- Definition Number of stock bought back by the entity at the exercise price or redemption price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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