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Note 11 - Other Borrowings and Unused Lines of Credit - Wholesale Structured Repurchase Agreement Collateralized Investment Securities (Details) - Whole sale Repurchase Agreements [Member] - USD ($) | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Securities sold under repurchase agreements | $ 65,002,722 | $ 52,119,731
Less: overcollateralized position | 30,002,722 | 7,119,731
| 35,000,000 | 45,000,000
US Government Agencies Debt Securities [Member] |  |
Securities sold under repurchase agreements | 3,474,555 | 20,798,703
Residential Mortgage Backed Securities [Member] |  |
Securities sold under repurchase agreements | $ 61,528,167 | $ 31,321,028

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- Definition Amount of overcapitalized position that is intend to cover any minor interest rate movement. + References No definition available. + Details
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- Definition Carrying amount of assets sold under agreements to repurchase when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under repurchase agreements exceeds 10 percent of total assets. + References Reference 1: 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.(m)(1)(i)(A)(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition Amount to be repaid to the counterparty to the repurchase agreement when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under the repurchase agreement exceeds 10 percent of total assets. + References Reference 1: 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.(m)(1)(i)(A)(ii)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Details
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- Details
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- Details
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