Note 4 - Loans and Allowance for Loan Losses - Loans By Category (Details) - USD ($)	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014
Residential Portfolio Segment [Member] \| One To Four Family Units [Member]
Loans receivable	$ 105,614,341		$ 98,257,417
Allowance for loan losses	(862,000)	$ (826,000)	(821,000)	$ (805,000)	$ (884,000)	$ (900,000)
Residential Portfolio Segment [Member] \| Multi Family Units [Member]
Loans receivable	36,894,514		41,603,670
Allowance for loan losses	(157,000)	(159,000)	(177,000)	(151,000)	(133,000)	(127,000)
Residential Portfolio Segment [Member] \| Construction Loans [Member]
Loans receivable	53,350,379		45,462,895
Allowance for loan losses	(1,668,000)	(1,868,000)	(1,246,000)	(1,346,000)	(1,361,000)	(1,330,000)
Commercial Real Estate Portfolio Segment [Member]
Loans receivable	222,741,281		208,824,573
Commercial Portfolio Segment [Member]
Loans receivable	83,112,278		81,006,897
Allowance for loan losses	(1,366,000)	(1,503,000)	(1,382,000)	(1,893,000)	(1,804,000)	(1,954,000)
Consumer Portfolio Segment [Member] \| Other Loans [Member]
Loans receivable	23,747,537		21,991,881
Allowance for loan losses	(288,000)	(270,000)	(223,000)	(232,000)	(221,000)	(185,000)
Loans receivable	525,460,330		497,147,333
Allowance for loan losses	(6,181,151)	$ (6,185,000)	(5,811,940)	$ (6,651,000)	$ (6,756,000)	$ (6,589,000)
Deferred loan fees/costs, net	(330,374)		(333,486)
Net loans	$ 518,948,805		$ 491,001,907

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.

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=66008989&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=66008989&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
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Reference 5: 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

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- Definition

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.

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- Definition

Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-URI http://asc.fasb.org/extlink&oid=65884687&loc=d3e4428-111522

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Amount of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield. Excludes amounts for loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6378536&loc=d3e10092-111533

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