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Note 21 - Fair Value - Assets Measured At Fair Value On a Recurring and Nonrecurring Basis (Details) - USD ($) | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Securities available for sale, fair value | $ 272,907,907 | $ 251,113,139
Impaired loans/leases | 23,615,310 | 18,788,073
Fair Value, Inputs, Level 1 [Member] |  |
Impaired loans/leases |  |
Fair Value, Inputs, Level 2 [Member] |  |
Impaired loans/leases |  |
Fair Value, Inputs, Level 3 [Member] |  |
Impaired loans/leases | 23,615,310 | 18,788,073
Fair Value, Measurements, Recurring [Member] |  |
Assets Fair Value | 277,811,845 | 254,027,947
Liabilities Fair Value | 4,397,238 | 2,338,281
Fair Value, Measurements, Recurring [Member] | Interest Rate Cap [Member] |  |
Interest rate caps | 506,700 | 576,527
Fair Value, Measurements, Recurring [Member] | Interest Rate Swap [Member] |  |
Interest rate caps | 4,397,238 | 2,338,281
Derivative Liabilites | 4,397,238 | 2,338,281
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Assets Fair Value | 1,028 | 1,361
Liabilities Fair Value |  |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Interest Rate Cap [Member] |  |
Interest rate caps |  |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Interest Rate Swap [Member] |  |
Interest rate caps |  |
Derivative Liabilites |  |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Assets Fair Value | 277,810,817 | 254,026,586
Liabilities Fair Value | 4,397,238 | 2,338,281
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Interest Rate Cap [Member] |  |
Interest rate caps | 506,700 | 576,527
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member] |  |
Interest rate caps | 4,397,238 | 2,338,281
Derivative Liabilites | 4,397,238 | 2,338,281
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Assets Fair Value |  |
Liabilities Fair Value |  |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Interest Rate Cap [Member] |  |
Interest rate caps |  |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Interest Rate Swap [Member] |  |
Interest rate caps |  |
Derivative Liabilites |  |
US Government Agencies Debt Securities [Member] |  |
Securities available for sale, fair value | 38,096,534 | 46,083,607
US Government Agencies Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] |  |
Securities available for sale, fair value | 38,096,534 | 46,083,607
US Government Agencies Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Securities available for sale, fair value |  |
US Government Agencies Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Securities available for sale, fair value | 38,096,534 | 46,083,607
US Government Agencies Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Securities available for sale, fair value |  |
Residential Mortgage Backed Securities [Member] |  |
Securities available for sale, fair value | 163,301,304 | 147,702,127
Residential Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member] |  |
Securities available for sale, fair value | 163,301,304 | 147,702,127
Residential Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Securities available for sale, fair value |  |
Residential Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Securities available for sale, fair value | 163,301,304 | 147,702,127
Residential Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Securities available for sale, fair value |  |
US States and Political Subdivisions Debt Securities [Member] |  |
Securities available for sale, fair value | 66,625,496 | 52,604,426
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] |  |
Securities available for sale, fair value | 66,625,496 | 52,604,426
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Securities available for sale, fair value |  |
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Securities available for sale, fair value | 66,625,496 | 52,604,426
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Securities available for sale, fair value |  |
Other Securities [Member] |  |
Securities available for sale, fair value | 4,884,573 | 4,722,979
Other Securities [Member] | Fair Value, Measurements, Recurring [Member] |  |
Securities available for sale, fair value | 4,884,573 | 4,722,979
Other Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Securities available for sale, fair value | 1,028 | 1,361
Other Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Securities available for sale, fair value | 4,883,545 | 4,721,618
Other Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Securities available for sale, fair value |  |
Impaired Loans Leases [Member] |  |
Impaired loans/leases | 8,972,337 | 12,823,121
Impaired Loans Leases [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Impaired loans/leases |  |
Impaired Loans Leases [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Impaired loans/leases |  |
Impaired Loans Leases [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Impaired loans/leases | 8,972,337 | 12,823,121
Other Real Estate Owned [Member] |  |
Impaired loans/leases | 14,642,973 | 5,964,952
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Impaired loans/leases |  |
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Impaired loans/leases |  |
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Impaired loans/leases | $ 14,642,973 | $ 5,964,952

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- Definition This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a nonrecurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References No definition available. + Details
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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=75030427&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82896770&loc=d3e26610-111562 + Details
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