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Note 12 - Supplemental Executive Retirement Plan (Details) (USD $) | 1 Months Ended |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended
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Feb. 28, 2014 | Sep. 30, 2014 Purchased Fixed Annuity for Financing Retirement Benefits [Member] Other Assets [Member] Supplemental Executive Retirement and Death Benefit Agreements [Member] | Feb. 28, 2013 Purchased Fixed Annuity for Financing Retirement Benefits [Member] Supplemental Executive Retirement and Death Benefit Agreements [Member] | Feb. 28, 2013 Supplemental Executive Retirement and Death Benefit Agreements [Member] | Sep. 30, 2014 Supplemental Executive Retirement and Death Benefit Agreements [Member] | Sep. 30, 2014 Supplemental Executive Retirement and Death Benefit Agreements [Member]
Note 12 - Supplemental Executive Retirement Plan (Details) [Line Items] |  |  |  |  |  |
Time Period for Calculating Base Salary Under SERP Agreements |  |  |  | 5 years |  |
Retirement Age |  |  |  |  | 67 | 67
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 5 years |  |  | 6 years |  |
Retirement Plan Monthly Installments |  |  |  | 180 |  |
Other Investments |  |  | $ 10,700,000 |  |  |
Cash Surrender Value of Life Insurance |  | 11,200,000 |  |  |  |
Defined Benefit Plan, Net Periodic Benefit Cost |  |  |  |  | $ 461,000 | $ 1,400,000

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- Definition Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity. + 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 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 17 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 4 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6812-107765 + Details
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- Definition The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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