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Note 4 - Marketable Securities (Details) - Marketable Securities (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2014 | Dec. 31, 2013
Note 4 - Marketable Securities (Details) - Marketable Securities [Line Items] |  |
Adjusted cost | $ 99,440 | $ 92,199
Unrealized Gains | 13,612 | 12,910
Unrealized Losses | (2,782) | (838)
Fair Value | 110,270 | 104,271
Equity Securities [Member] |  |
Note 4 - Marketable Securities (Details) - Marketable Securities [Line Items] |  |
Adjusted cost | 58,635 | 51,711
Unrealized Gains | 11,073 | 11,597
Unrealized Losses | (2,745) | (278)
Fair Value | 66,963 | 63,030
Preferred Stock [Member] |  |
Note 4 - Marketable Securities (Details) - Marketable Securities [Line Items] |  |
Adjusted cost | 18,756 | 18,519
Unrealized Gains | 1,613 | 893
Unrealized Losses | (25) | (299)
Fair Value | 20,344 | 19,113
Trust Preferred Securities [Member] |  |
Note 4 - Marketable Securities (Details) - Marketable Securities [Line Items] |  |
Adjusted cost | 20,240 | 19,726
Unrealized Gains | 803 | 386
Unrealized Losses | (12) | (235)
Fair Value | 21,031 | 19,877
Debt Securities [Member] |  |
Note 4 - Marketable Securities (Details) - Marketable Securities [Line Items] |  |
Adjusted cost | 1,809 | 2,243
Unrealized Gains | 123 | 34
Unrealized Losses |  | (26)
Fair Value | $ 1,932 | $ 2,251

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- Definition Total debt and equity financial instruments including: (1) securities held-to-maturity, (2) trading securities, and (3) securities available-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.4) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 + Details
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- Definition Amount of investments in debt and equity securities, including, but not limited to, held-to-maturity, trading and available-for-sale expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26626-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 2 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765 + Details
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- Definition The increase (decrease), resulting in a gain, in the difference between the fair value and the carrying value, or in the comparative fair values, of securities held at each balance sheet date, that was included in earnings for the period. + References No definition available. + Details
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