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Note 11 - Preferred Stock (Details) (USD $) | 1 Months Ended | 0 Months Ended | 11 Months Ended | 12 Months Ended |  |  |  |  |  | 0 Months Ended | 12 Months Ended | 0 Months Ended | 6 Months Ended |  |  |  | 12 Months Ended | 0 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended | 3 Months Ended | 27 Months Ended | 3 Months Ended | 27 Months Ended | 1 Months Ended | 12 Months Ended
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Dec. 23, 2013 | Sep. 15, 2011 | Dec. 31, 2009 | Dec. 31, 2011 | Dec. 31, 2013 | Dec. 20, 2013 | Dec. 31, 2012 | Jun. 30, 2010 Conversion Price for Series E Preferred Stock Into Common Stock [Member] | Jun. 30, 2010 Minimum Trading Price to Trigger Stock Conversion [Member] | Dec. 31, 2013 Minimum Before Holder Receives Right to Designate Two Directors [Member] | Dec. 31, 2013 If No Increase or Decrease in QSBL [Member] Series F Preferred Stock [Member] | Nov. 16, 2011 Series D Cumulative Perpetual Preferred Stock [Member] | Sep. 15, 2011 Series D Cumulative Perpetual Preferred Stock [Member] | Feb. 13, 2009 Series D Cumulative Perpetual Preferred Stock [Member] | Dec. 31, 2011 Series D Cumulative Perpetual Preferred Stock [Member] | Feb. 13, 2009 Series D Cumulative Perpetual Preferred Stock [Member] First Five Years [Member] | Feb. 13, 2009 Series D Cumulative Perpetual Preferred Stock [Member] After Five Years [Member] | Jun. 30, 2010 Series E Non-Cumulative Perpetual Preferred Stock [Member] | Dec. 23, 2013 Series E Non-Cumulative Perpetual Preferred Stock [Member] | Dec. 31, 2012 Series E Non-Cumulative Perpetual Preferred Stock [Member] | Jun. 30, 2010 Exchange of Series B and C Preferred Stock for Series E Non-Cumulative Perpetual Preferred Stock [Member] | Dec. 31, 2013 Series B Preferred Stock [Member] | Dec. 31, 2013 Series C Preferred Stock [Member] | Sep. 30, 2011 Series F Preferred Stock [Member] | Dec. 31, 2013 Series F Preferred Stock [Member] | Dec. 31, 2011 Series F Preferred Stock [Member] | Sep. 15, 2011 Series F Preferred Stock [Member] | Dec. 31, 2013 Series F Preferred Stock [Member] After Four and a Half Years [Member] | Dec. 31, 2011 Series F Preferred Stock [Member] Minimum [Member] Second Through Tenth Calendar Quarters [Member] | Dec. 31, 2013 Series F Preferred Stock [Member] Minimum [Member] Eleventh Calendar Quarter Through Four and a Half Years [Member] | Dec. 31, 2011 Series F Preferred Stock [Member] Maximum [Member] Second Through Tenth Calendar Quarters [Member] | Dec. 31, 2013 Series F Preferred Stock [Member] Maximum [Member] Eleventh Calendar Quarter Through Four and a Half Years [Member] | Jun. 29, 2012 Series F Noncumulative Perpetual Preferred Stock [Member] | Dec. 31, 2013 Series F Noncumulative Perpetual Preferred Stock [Member] | Dec. 31, 2012 Series F Noncumulative Perpetual Preferred Stock [Member] | Dec. 31, 2011 Series F Noncumulative Perpetual Preferred Stock [Member]
Note 11 - Preferred Stock (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in Shares) |  |  |  |  |  |  |  |  |  |  |  |  | 38,327 | 38,237 |  |  |  | 25,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 40,090
Proceeds from Issuance of Preferred Stock and Preference Stock (in Dollars) |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 38,237,000 |  |  |  | $ 4,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 39,996,922
Preferred Stock, Dividend Rate, Percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% | 9.00% | 7.00% |  |  |  | 8.00% | 9.50% | 5.00% | 9.00% | 5.00% |  | 9.00% | 1.00% | 1.00% | 5.00% | 5.00% |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares) |  |  |  |  |  |  |  |  |  |  |  |  |  | 521,888 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item) |  |  |  |  |  |  |  |  |  |  |  |  |  | 10.99 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Inputs, Discount Rate |  |  | 6.23% |  |  |  |  |  |  |  |  |  |  | 12.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Value, Issued (in Dollars) |  |  |  |  | 29,867 |  | 54,867 |  |  |  |  |  |  | 35,800,000 |  |  |  | 25,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding (in Dollars) |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Discount on Shares (in Dollars) |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares Of Series D Cumulative Perpetual Preferred Stock Redeemed (in Shares) |  | 38,237 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Accretion of Redemption Discount (in Dollars) |  |  |  | 1,200,000 |  |  |  |  |  |  |  |  | 1,252,023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments for Repurchase of Warrants (in Dollars) |  |  |  |  |  |  |  |  |  |  |  | 1,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Liquidation Preference Per Share (in Dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Redemption Amount (in Dollars) |  |  |  |  |  |  |  |  |  |  |  |  | 38,237,000 |  | (38,237,000) |  |  |  |  |  | 20,900,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | (10,223,000) |
Preferred Stock, Redemption Price Per Share (in Dollars per share) |  |  |  |  |  |  |  | $ 12.15 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share Price (in Dollars per share) |  |  |  |  |  | $ 17.24 |  |  | $ 17.22 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Par or Stated Value Per Share (in Dollars per share) |  |  |  |  | $ 1 |  | $ 1 |  |  |  | $ 0.07 |  |  |  |  |  |  |  | $ 1,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share Conversion, Fractional Amount (in Dollars) | 1,915 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Conversion of Convertible Securities (in Shares) | 2,057,502 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Shares Issued (in Shares) |  |  |  |  | 29,867 |  | 54,867 |  |  |  |  |  |  |  |  |  |  |  |  | 25,000 |  |  |  |  |  |  | 40,090 |  |  |  |  |  |  | 29,867 | 29,867 |
Proceeds from Sale of Treasury Stock (in Dollars) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 40,090,000 |  |  |  |  |  |  |  |  |
Dividends, Preferred Stock (in Dollars) |  |  |  |  |  |  |  |  |  |  |  |  | 159,321 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lending Incentive Fee Per Year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.00% |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Liquidation Preference, Value (in Dollars) |  |  |  |  |  |  |  |  |  | 25,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Redeemed or Called During Period, Shares (in Shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,223 | 10,223 | 10,223 |
Stock Redeemed or Called During Period, Value (in Dollars) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (38,237,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,223,000 |  | (10,223,000) |
Dividends Payable, Current (in Dollars) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 124,948 |  |  |

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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 SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29 -Article 5 Reference 3: 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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph d -Article 4 Reference 5: 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 + Details
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