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Note 21 - Fair Value - Carrying Values and Estimated Fair Values of Financial Assets and Liabilities (Details) - USD ($) | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Interest-bearing deposits at financial institutions | $ 133,198,095 | $ 55,765,012
Securities held to maturity, fair value | 400,770,583 | 379,749,804
Securities available for sale, fair value | 261,056,448 | 272,907,907
Fair Value, Inputs, Level 1 [Member] | Reported Value Measurement [Member] |  |
Cash and due from banks | 85,522,685 | 75,721,663
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value Measurement [Member] |  |
Cash and due from banks | 85,522,685 | 75,721,663
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member] |  |
Federal funds sold | 26,398,000 | 30,197,000
Securities held to maturity, fair value | 401,912,885 | 379,474,205
Securities available for sale, fair value | 261,056,448 | 272,907,907
Loans/leases receivable, net | 3,683,965,349 | 2,921,821,953
Short-term borrowings | 28,774,157 | 13,993,122
FHLB advances | 266,492,039 | 192,000,000
Other borrowings | 72,032,318 | 66,000,000
Junior subordinated debentures | 37,670,043 | 37,486,487
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member] | Non-maturity Deposits [Member] |  |
Deposits | 3,002,326,538 | 2,670,583,178
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member] | Time Deposits [Member] |  |
Deposits | 974,704,036 | 596,071,878
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member] | Interest rate cap |  |
Interest rate | 458,812 | 506,700
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member] | Interest rate swap |  |
Interest rate | 22,195,713 | 4,397,238
Interest rate swaps - liabilities | 23,346,887 | 4,397,238
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member] | Interest-bearing Deposits [Member] |  |
Interest-bearing deposits at financial institutions | 133,198,095 | 55,765,012
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member] |  |
Federal funds sold | 26,398,000 | 30,197,000
Securities held to maturity, fair value | 400,770,583 | 379,749,804
Securities available for sale, fair value | 261,056,448 | 272,907,907
Loans/leases receivable, net | 3,639,329,000 | 2,892,963,000
Short-term borrowings | 28,774,157 | 13,993,122
FHLB advances | 265,926,000 | 192,115,000
Other borrowings | 72,703,000 | 66,520,000
Junior subordinated debentures | 29,992,198 | 29,253,624
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member] | Non-maturity Deposits [Member] |  |
Deposits | 3,002,326,538 | 2,670,583,178
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member] | Time Deposits [Member] |  |
Deposits | 968,906,000 | 591,772,000
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member] | Interest rate cap |  |
Interest rate | 458,812 | 506,700
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member] | Interest rate swap |  |
Interest rate | 22,195,713 | 4,397,238
Interest rate swaps - liabilities | 23,346,887 | 4,397,238
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member] | Interest-bearing Deposits [Member] |  |
Interest-bearing deposits at financial institutions | 133,198,095 | 55,765,012
Fair Value, Inputs, Level 3 [Member] | Reported Value Measurement [Member] |  |
Loans/leases receivable, net | 8,941,585 | 8,307,719
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member] |  |
Loans/leases receivable, net | $ 9,656,912 | $ 8,972,337

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- Definition Fair value portion of cash on hand (currency and coin), cash items in process of collection, noninterest bearing deposits due from other financial institutions (including corporate credit unions), and noninterest bearing balances with the Federal Reserve Banks, Federal Home Loan Banks and central banks. + 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 No definition available. + Details
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- Definition Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits. + References No definition available. + Details
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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
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- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 + Details
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- Definition Fair value of subordinated debt obligations including, but not limited to, subordinated loan, subordinated bond, subordinated debenture or junior debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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- Definition Fair value portion of borrowing from Federal Home Loan Bank (FHLBank). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13(3)(a)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Fair value of investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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 + Details
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- Definition For banks and other depository institutions (including Federal Reserve Banks, if applicable): Interest-bearing deposits in other financial institutions for relatively short periods of time including, for example, certificates of deposits, which are presented separately from cash on the balance sheet. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=73530178&loc=d3e59706-112781 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.2) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2196772 + Details
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- Definition Fair value portion of securities that an entity sells and agrees to repurchase at a specified date for a specified price. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611 + Details
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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of short-term debt existing as of the balance sheet date. + References No definition available. + Details
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