Note 21 - Fair Value - Assets Measured At Fair Value On a Recurring and Nonrecurring Basis (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Securities available for sale, fair value	$ 261,056,448	$ 272,907,907
Assets Fair Value	19,784,866	23,615,310
Fair Value, Inputs, Level 3 [Member]
Assets Fair Value	19,784,866	23,615,310
Fair Value, Measurements, Recurring [Member]
Assets Fair Value	283,710,973	277,811,845
Liabilities Fair Value	23,346,887	4,397,238
Fair Value, Measurements, Recurring [Member] \| Interest rate cap
Interest rate	458,812	506,700
Fair Value, Measurements, Recurring [Member] \| Interest rate swap
Interest rate	22,195,713	4,397,238
Derivative Liabilities	23,346,887	4,397,238
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Assets Fair Value		1,028
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Assets Fair Value	283,710,973	277,810,817
Liabilities Fair Value	23,346,887	4,397,238
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member] \| Interest rate cap
Interest rate	458,812	506,700
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member] \| Interest rate swap
Interest rate	22,195,713	4,397,238
Derivative Liabilities	23,346,887	4,397,238
US Government Agencies Debt Securities
Securities available for sale, fair value	36,411,391	38,096,534
US Government Agencies Debt Securities \| Fair Value, Measurements, Recurring [Member]
Securities available for sale, fair value	36,411,391	38,096,534
US Government Agencies Debt Securities \| Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available for sale, fair value	36,411,391	38,096,534
Residential Mortgage Backed Securities
Securities available for sale, fair value	159,249,260	163,301,304
Residential Mortgage Backed Securities \| Fair Value, Measurements, Recurring [Member]
Securities available for sale, fair value	159,249,260	163,301,304
Residential Mortgage Backed Securities \| Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available for sale, fair value	159,249,260	163,301,304
US States and Political Subdivisions Debt Securities
Securities available for sale, fair value	58,546,022	66,625,496
US States and Political Subdivisions Debt Securities \| Fair Value, Measurements, Recurring [Member]
Securities available for sale, fair value	58,546,022	66,625,496
US States and Political Subdivisions Debt Securities \| Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available for sale, fair value	58,546,022	66,625,496
Other Securities
Securities available for sale, fair value	6,849,775	4,884,573
Other Securities \| Fair Value, Measurements, Recurring [Member]
Securities available for sale, fair value	6,849,775	4,884,573
Other Securities \| Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities available for sale, fair value		1,028
Other Securities \| Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available for sale, fair value	6,849,775	4,883,545
Impaired Loans Leases [Member]
Assets Fair Value	9,656,912	8,972,337
Impaired Loans Leases [Member] \| Fair Value, Inputs, Level 3 [Member]
Assets Fair Value	9,656,912	8,972,337
Other Real Estate Owned [Member]
Assets Fair Value	10,127,954	14,642,973
Other Real Estate Owned [Member] \| Fair Value, Inputs, Level 3 [Member]
Assets Fair Value	$ 10,127,954	$ 14,642,973

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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-Publisher FASB
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-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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