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Note 8 - Borrowings (Details) - USD ($) | 1 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2015 | Sep. 30, 2015 | Dec. 31, 2014 | Jun. 30, 2014
Note 8 - Borrowings (Details) [Line Items] |  |  |  |
Advances from Federal Home Loan Banks | $ 120,000,000 | $ 120,000,000 | $ 120,000,000 |
Derivative, Variable Interest Rate | 3.46% | 3.46% |  |
Number of Consecutive Quarters for Interest Deferment |  | 20 |  |
Interest Payable | $ 356,000 | $ 356,000 |  | $ 1,600,000
Proceeds from Notes Payable | 2,000,000 | $ 2,000,000 |  |
London Interbank Offered Rate (LIBOR) [Member] |  |  |  |
Note 8 - Borrowings (Details) [Line Items] |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  | 3.15% |  |
Unsecured Debt [Member] | Trust [Member] |  |  |  |
Note 8 - Borrowings (Details) [Line Items] |  |  |  |
Subordinated Debt | $ 8,200,000 | $ 8,200,000 |  |
Notes Payable, Other Payables [Member] |  |  |  |
Note 8 - Borrowings (Details) [Line Items] |  |  |  |
Debt Instrument, Term | 10 years |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 1.75% | 1.75% |  |
Minimum [Member] |  |  |  |
Note 8 - Borrowings (Details) [Line Items] |  |  |  |
Federal Home Loan Bank, Advances, Maturity Period, Fixed Rate |  | 1 day |  |
Federal Home Loan Bank, Advances, Interest Rate | 0.30% | 0.30% |  |
Maximum [Member] |  |  |  |
Note 8 - Borrowings (Details) [Line Items] |  |  |  |
Federal Home Loan Bank, Advances, Maturity Period, Fixed Rate |  | 6 months |  |
Federal Home Loan Bank, Advances, Interest Rate | 0.50% | 0.50% |  |

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- Definition Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 + Details
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- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Article 5 -Subsection 19, 20, 22 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 10 -Section F + Details
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