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Note 9 - FHLB Advances (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 | Jun. 30, 2015 | Dec. 31, 2015 | Dec. 31, 2014
Note 9 - FHLB Advances (Details) [Line Items] |  |  |  |
Federal Home Loan Bank Stock | $ 9,135,900 |  | $ 9,135,900 | $ 11,279,000
Repayments of Federal Home Loan Bank Borrowings | $ 3,000,000 | $ 75,500,000 | $ 84,401,601 | 0
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Weighted Average Interest Rate | 3.98% | 4.36% | 3.98% |
Gains (Losses) on Extinguishment of Debt | $ 209,416 | $ (6,900,000) |  |
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged | 480,466,274 |  | $ 480,466,274 | 499,084,047
Advances from Federal Home Loan Banks, Short-term | $ 84,000,000 |  | $ 84,000,000 | $ 37,000,000
Federal Home Loan Bank Advances [Member] |  |  |  |
Note 9 - FHLB Advances (Details) [Line Items] |  |  |  |
Gains (Losses) on Extinguishment of Debt |  | $ (5,692,185) |  |
Minimum [Member] |  |  |  |
Note 9 - FHLB Advances (Details) [Line Items] |  |  |  |
Federal Home Loan Bank, Advances, Maturity Period, Fixed Rate |  |  | 1 day |
Minimum [Member] | Loans Receivable [Member] |  |  |  |
Note 9 - FHLB Advances (Details) [Line Items] |  |  |  |
FHLB Collateral Maintenance Levels | 125.00% |  | 125.00% |
Maximum [Member] |  |  |  |
Note 9 - FHLB Advances (Details) [Line Items] |  |  |  |
Federal Home Loan Bank, Advances, Maturity Period, Fixed Rate |  |  | 1 month |
Maximum [Member] | Loans Receivable [Member] |  |  |  |
Note 9 - FHLB Advances (Details) [Line Items] |  |  |  |
FHLB Collateral Maintenance Levels | 333.00% |  | 333.00% |

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- Definition Amount of short-term 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 No definition available. + Details
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- Definition FHLB collateral maintenance levels. + References No definition available. + Details
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- Definition Describes the weighted average interest rate applicable to the specific advances from the Federal Home Loan Bank, by branch, as of the Balance Sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 Reference 2: 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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of the collateral pledged in support of federal home loan bank advances outstanding. + 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 + Details
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- Definition Maturity period on fixed rate advances made and reported by Federal Home Loan Bank (FHLBank), in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 325 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6478792&loc=d3e63345-112809 + Details
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- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12355-112629 + Details
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- Definition The cash outflow for the payment of loan drawn from Federal Home Loan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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