Note 6 - Assets Measured at Fair Value on a Recurring and Nonrecurring Basis (Details) - USD ($)	Jun. 30, 2016	Dec. 31, 2015
Impaired Loans Leases [Member] \| Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value
Impaired Loans Leases [Member] \| Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair value
Impaired Loans Leases [Member] \| Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair value	5,669,757	4,545,966
Impaired Loans Leases [Member] \| Fair Value, Measurements, Recurring [Member]
Fair value	5,669,757	4,545,966
Impaired Loans Leases [Member]
Fair value	5,669,757	4,545,966
Other Real Estate Owned [Member] \| Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value
Other Real Estate Owned [Member] \| Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair value
Other Real Estate Owned [Member] \| Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair value	6,673,430	7,722,711
Other Real Estate Owned [Member] \| Fair Value, Measurements, Recurring [Member]
Fair value	6,673,430	7,722,711
Fair Value, Measurements, Recurring [Member] \| US Government Agencies Debt Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities available for sale, at fair value
Fair Value, Measurements, Recurring [Member] \| US Government Agencies Debt Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available for sale, at fair value	88,321,448	213,537,379
Fair Value, Measurements, Recurring [Member] \| US Government Agencies Debt Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities available for sale, at fair value
Fair Value, Measurements, Recurring [Member] \| US Government Agencies Debt Securities [Member]
Securities available for sale, at fair value	88,321,448	213,537,379
Fair Value, Measurements, Recurring [Member] \| Residential Mortgage Backed Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities available for sale, at fair value
Fair Value, Measurements, Recurring [Member] \| Residential Mortgage Backed Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available for sale, at fair value	116,765,510	80,670,135
Fair Value, Measurements, Recurring [Member] \| Residential Mortgage Backed Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities available for sale, at fair value
Fair Value, Measurements, Recurring [Member] \| Residential Mortgage Backed Securities [Member]
Securities available for sale, at fair value	116,765,510	80,670,135
Fair Value, Measurements, Recurring [Member] \| US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities available for sale, at fair value
Fair Value, Measurements, Recurring [Member] \| US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available for sale, at fair value	23,392,817	27,578,588
Fair Value, Measurements, Recurring [Member] \| US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities available for sale, at fair value
Fair Value, Measurements, Recurring [Member] \| US States and Political Subdivisions Debt Securities [Member]
Securities available for sale, at fair value	23,392,817	27,578,588
Fair Value, Measurements, Recurring [Member] \| Other Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities available for sale, at fair value	1,353	411
Fair Value, Measurements, Recurring [Member] \| Other Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available for sale, at fair value	2,132,656	1,648,469
Fair Value, Measurements, Recurring [Member] \| Other Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities available for sale, at fair value
Fair Value, Measurements, Recurring [Member] \| Other Securities [Member]
Securities available for sale, at fair value	2,134,009	1,648,880
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 1 [Member]
Assets Fair Value	1,353	411
Liabilities Fair Value
Fair value
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member] \| Interest Rate Cap [Member]
Interest rate caps	270,806	856,024
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member] \| Interest Rate Swap [Member]
Interest rate caps	9,867,856	3,044,525
Derivative Liabilites	9,867,856	3,044,525
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Assets Fair Value	240,751,093	327,335,120
Liabilities Fair Value	9,867,856	3,044,525
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
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Assets Fair Value
Liabilities Fair Value
Fair value	12,343,187	12,268,677
Fair Value, Measurements, Recurring [Member] \| Interest Rate Cap [Member]
Interest rate caps	270,806	856,024
Fair Value, Measurements, Recurring [Member] \| Interest Rate Swap [Member]
Interest rate caps	9,867,856	3,044,525
Derivative Liabilites	9,867,856	3,044,525
Fair Value, Measurements, Recurring [Member]
Assets Fair Value	240,752,446	327,335,531
Liabilities Fair Value	9,867,856	3,044,525
Fair value	12,343,187	12,268,677
US Government Agencies Debt Securities [Member]
Securities available for sale, at fair value	88,321,448	213,537,379
Residential Mortgage Backed Securities [Member]
Securities available for sale, at fair value	116,765,510	80,670,135
US States and Political Subdivisions Debt Securities [Member]
Securities available for sale, at fair value	23,392,817	27,578,588
Other Securities [Member]
Securities available for sale, at fair value	2,134,009	1,648,880
Fair Value, Inputs, Level 2 [Member] \| Interest Rate Cap [Member]
Interest rate caps	270,806	856,024
Fair Value, Inputs, Level 2 [Member] \| Interest Rate Swap [Member]
Interest rate caps	9,867,856	3,044,525
Fair Value, Inputs, Level 2 [Member]
Securities available for sale, at fair value	240,481,640	323,434,982
Fair Value, Inputs, Level 3 [Member] \| Interest Rate Swap [Member]
Derivative Liabilites
Securities available for sale, at fair value	$ 230,613,784	$ 323,434,982

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
-Name Accounting Standards Codification
-Topic 820
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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.

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- Definition

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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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.

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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.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Fair value of financial and nonfinancial obligations.

+ References

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