Note 4 - Loans and Allowance for Loan Losses - Loans by Aging (Details) - USD ($)	Sep. 30, 2016	Dec. 31, 2015
Financing Receivables, 30 to 59 Days Past Due [Member] \| Residential Portfolio Segment [Member] \| One To Four Family Units [Member]
Loans receivable, past due	$ 244,000
Financing Receivables, 30 to 59 Days Past Due [Member] \| Residential Portfolio Segment [Member] \| Multi Family Units [Member]
Loans receivable, past due
Financing Receivables, 30 to 59 Days Past Due [Member] \| Residential Portfolio Segment [Member] \| Construction Loans [Member]
Loans receivable, past due
Financing Receivables, 30 to 59 Days Past Due [Member] \| Commercial Real Estate Portfolio Segment [Member]
Loans receivable, past due
Financing Receivables, 30 to 59 Days Past Due [Member] \| Commercial Portfolio Segment [Member]
Loans receivable, past due		88,000
Financing Receivables, 30 to 59 Days Past Due [Member] \| Consumer Portfolio Segment [Member] \| Other Loans [Member]
Loans receivable, past due	70,000	2,000
Financing Receivables, 30 to 59 Days Past Due [Member]
Loans receivable, past due	314,000	90,000
Financing Receivables, 60 to 89 Days Past Due [Member] \| Residential Portfolio Segment [Member] \| One To Four Family Units [Member]
Loans receivable, past due	295,000	168,000
Financing Receivables, 60 to 89 Days Past Due [Member] \| Residential Portfolio Segment [Member] \| Multi Family Units [Member]
Loans receivable, past due
Financing Receivables, 60 to 89 Days Past Due [Member] \| Residential Portfolio Segment [Member] \| Construction Loans [Member]
Loans receivable, past due
Financing Receivables, 60 to 89 Days Past Due [Member] \| Commercial Real Estate Portfolio Segment [Member]
Loans receivable, past due
Financing Receivables, 60 to 89 Days Past Due [Member] \| Commercial Portfolio Segment [Member]
Loans receivable, past due
Financing Receivables, 60 to 89 Days Past Due [Member] \| Consumer Portfolio Segment [Member] \| Other Loans [Member]
Loans receivable, past due		8,000
Financing Receivables, 60 to 89 Days Past Due [Member]
Loans receivable, past due	295,000	176,000
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Residential Portfolio Segment [Member] \| One To Four Family Units [Member]
Loans receivable, past due	164,000	105,000
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Residential Portfolio Segment [Member] \| Multi Family Units [Member]
Loans receivable, past due
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Residential Portfolio Segment [Member] \| Construction Loans [Member]
Loans receivable, past due
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Commercial Real Estate Portfolio Segment [Member]
Loans receivable, past due	835,000	1,079,000
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Commercial Portfolio Segment [Member]
Loans receivable, past due	612,000	1,239,000
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Consumer Portfolio Segment [Member] \| Other Loans [Member]
Loans receivable, past due	16,000
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans receivable, past due	1,627,000	2,423,000
Residential Portfolio Segment [Member] \| One To Four Family Units [Member]
Loans receivable, past due	703,000	273,000
Loans receivable, current	108,689,000	97,984,000
Loans receivable	109,391,522	98,257,417
Loans receivable, past due and accruing
Residential Portfolio Segment [Member] \| Multi Family Units [Member]
Loans receivable, past due
Loans receivable, current	38,192,000	41,604,000
Loans receivable	38,192,064	41,603,670
Loans receivable, past due and accruing
Residential Portfolio Segment [Member] \| Construction Loans [Member]
Loans receivable, past due
Loans receivable, current	41,306,000	45,463,000
Loans receivable	41,305,779	45,462,895
Loans receivable, past due and accruing
Commercial Real Estate Portfolio Segment [Member]
Loans receivable, past due	835,000	1,079,000
Loans receivable, current	237,887,000	207,745,000
Loans receivable	238,722,021	208,824,573
Loans receivable, past due and accruing
Commercial Portfolio Segment [Member]
Loans receivable, past due	612,000	1,327,000
Loans receivable, current	81,127,000	79,680,000
Loans receivable	81,739,377	81,006,897
Loans receivable, past due and accruing
Consumer Portfolio Segment [Member] \| Other Loans [Member]
Loans receivable, past due	86,000	10,000
Loans receivable, current	23,176,000	21,982,000
Loans receivable	23,261,945	21,991,881
Loans receivable, past due and accruing
Loans receivable, past due	2,236,000	2,689,000
Loans receivable, current	530,377,000	494,458,000
Loans receivable	532,612,708	497,147,333
Loans receivable, past due and accruing

Recorded investment in financing receivables that are 90 days or more past due and still accruing.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Recorded Investment
-URI http://asc.fasb.org/extlink&oid=65880944

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5111-111524

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- Definition

Financing receivables that are current.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7A
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953401-111524

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- Definition

Recorded Investment in financing receivables that are past due at the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Recorded Investment
-URI http://asc.fasb.org/extlink&oid=65880944

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7A
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953401-111524

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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=65884687&loc=d3e4428-111522

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