Note 5 - Loans Receivable (Details) - Troubled Debt Restructurings $ in Thousands			12 Months Ended
Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2014 USD ($)
Financing Receivable, Modifications [Line Items]
Number of loans	17	22	3
Balance	$ 1,713	$ 2,464	$ 2,464
Accrual [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	3	5
Balance	$ 284	$ 566	566
Nonaccrual [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	14	17
Balance	$ 1,429	$ 1,898	$ 1,898
Real Estate Portfolio Segment [Member] \| One-to-Four-Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	8	13	1
Balance	$ 655	$ 1,208	$ 1,208
Real Estate Portfolio Segment [Member] \| Nonfarm Nonresidential [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	3	3
Balance	$ 461	$ 511	511
Real Estate Portfolio Segment [Member] \| Farmland [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	1	1
Balance	$ 250	$ 250	$ 250
Real Estate Portfolio Segment [Member] \| Construction Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	3	3	1
Balance	$ 321	$ 480	$ 480
Real Estate Portfolio Segment [Member] \| Accrual [Member] \| One-to-Four-Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	2	4
Balance	$ 205	$ 482	482
Real Estate Portfolio Segment [Member] \| Accrual [Member] \| Construction Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	1	1
Balance	$ 79	$ 84	84
Real Estate Portfolio Segment [Member] \| Nonaccrual [Member] \| One-to-Four-Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	6	9
Balance	$ 450	$ 726	726
Real Estate Portfolio Segment [Member] \| Nonaccrual [Member] \| Nonfarm Nonresidential [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	3	3
Balance	$ 461	$ 511	511
Real Estate Portfolio Segment [Member] \| Nonaccrual [Member] \| Farmland [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	1	1
Balance	$ 250	$ 250	250
Real Estate Portfolio Segment [Member] \| Nonaccrual [Member] \| Construction Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	2	2
Balance	$ 242	$ 396	$ 396
Commercial Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	1
Balance	$ 21
Commercial Portfolio Segment [Member] \| Nonaccrual [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	1
Balance	$ 21
Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	1	2	1
Balance	$ 5	$ 15	$ 15
Consumer Portfolio Segment [Member] \| Nonaccrual [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	1	2
Balance	$ 5	$ 15	$ 15

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Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953676-111524

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The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18845-111554

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