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Note 5 - Allowance for Loan Losses (Details) - USD ($)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2015	Jun. 30, 2015	Dec. 31, 2014	Mar. 31, 2013	Mar. 30, 2013	Dec. 31, 2012
Note 5 - Allowance for Loan Losses (Details) [Line Items]
Allowance for Credit Losses, Change in Method of Calculating Impairment			$ 1,621,424
Loan Balance for Reviewing High Risk Loans Minimum	$ 250,000	$ 250,000			$ 250,000	$ 50,000
Financing Receivable Transfer from Individual Impairment Review to Collective Impairment Review	4,100,000
Loans receivable	751,218,462	758,635,595		$ 746,093,809
Loans and Leases Receivable, Allowance	11,805,986	8,603,905		8,802,316			$ 12,736,921
Impaired Financing Receivable Recorded Investment Below Review Threshold	$ 2,821,199	3,744,733		3,885,411
Substandard [Member]
Note 5 - Allowance for Loan Losses (Details) [Line Items]
Loans receivable		32,397,170		32,882,846
Loans Not Classified as Impaired [Member] | Substandard [Member]
Note 5 - Allowance for Loan Losses (Details) [Line Items]
Loans receivable		11,155,813		9,356,253
Loans and Leases Receivable, Allowance		$ 276,731		$ 747,982

X

- Definition

The effect of a change in method of evaluating loans for individual impairment review.

+ References

No definition available.

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X

- Definition

Amount of investment of impaired financing receivables below the $250,000 threshold for review and were not individually reviewed for impairment.

+ References

No definition available.

+ Details

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- Definition

Minimum loan balance for reviewing.

+ References

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- References

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- Definition

Amount of allowance for credit losses related to receivables which had been measured under a general allowance for credit losses methodology that are now identified as troubled debt restructurings.

+ References

No definition available.

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X

- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.7(d))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (b)(1)(ii)
-URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 6
-Section L
-Subsection 1

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522

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