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Note 6 - Loans and Allowance for Loan Losses - Carrying Amount of Loans By Credit Quality Indicator (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Construction, Land Development and Other Land Loans [Member] | Real Estate [Member] | FUSB [Member] | Pass [Member]
Total loans	$ 23,075	$ 9,862
Construction, Land Development and Other Land Loans [Member] | Real Estate [Member] | FUSB [Member] | Special Mention [Member]
Total loans
Construction, Land Development and Other Land Loans [Member] | Real Estate [Member] | FUSB [Member] | Substandard [Member]
Total loans	1,535	1,965
Construction, Land Development and Other Land Loans [Member] | Real Estate [Member] | FUSB [Member] | Doubtful [Member]
Total loans
Construction, Land Development and Other Land Loans [Member] | Real Estate [Member] | FUSB [Member]
Total loans	24,610	11,827
Construction, Land Development and Other Land Loans [Member] | Real Estate [Member] | ALC [Member]
Total loans
Construction, Land Development and Other Land Loans [Member] | Real Estate [Member]
Total loans	24,610	11,827
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Pass [Member]
Total loans	31,450	29,252
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Special Mention [Member]
Total loans	217	228
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Substandard [Member]
Total loans	892	1,250
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Doubtful [Member]
Total loans
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | FUSB [Member]
Total loans	32,559	30,730
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | ALC [Member] | Performing Financial Instruments [Member]
Total loans	14,213
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | ALC [Member] | Nonperforming Financial Instruments [Member]
Total loans	249
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | ALC [Member]
Total loans	14,462	17,233
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member]
Total loans	47,021	47,963
Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | ALC [Member] | Performing Financial Instruments [Member]
Total loans		16,964
Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | ALC [Member] | Nonperforming Financial Instruments [Member]
Total loans		269
Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | ALC [Member]
Total loans		17,233
Secured by Multi-family Residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Pass [Member]
Total loans	16,801	11,845
Secured by Multi-family Residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Special Mention [Member]
Total loans
Secured by Multi-family Residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Substandard [Member]
Total loans
Secured by Multi-family Residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Doubtful [Member]
Total loans
Secured by Multi-family Residential Properties [Member] | Real Estate [Member] | FUSB [Member]
Total loans	16,801	11,845
Secured by Multi-family Residential Properties [Member] | Real Estate [Member] | ALC [Member]
Total loans
Secured by Multi-family Residential Properties [Member] | Real Estate [Member]
Total loans	16,801	11,845
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Pass [Member]
Total loans	93,344	78,647
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Special Mention [Member]
Total loans	3,787	4,315
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Substandard [Member]
Total loans	728	921
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Doubtful [Member]
Total loans
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member] | FUSB [Member]
Total loans	97,859	83,883
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member] | ALC [Member]
Total loans
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member]
Total loans	97,859	83,883
Other Real Estate Loans [Member] | Real Estate [Member] | FUSB [Member] | Pass [Member]
Total loans	185	115
Other Real Estate Loans [Member] | Real Estate [Member] | FUSB [Member] | Special Mention [Member]
Total loans
Other Real Estate Loans [Member] | Real Estate [Member] | FUSB [Member] | Substandard [Member]
Total loans
Other Real Estate Loans [Member] | Real Estate [Member] | FUSB [Member] | Doubtful [Member]
Total loans
Other Real Estate Loans [Member] | Real Estate [Member] | FUSB [Member]
Total loans	185	115
Other Real Estate Loans [Member] | Real Estate [Member] | ALC [Member]
Total loans
Other Real Estate Loans [Member] | Real Estate [Member]
Total loans	185	115
Consumer Portfolio Segment [Member] | FUSB [Member] | Pass [Member]
Total loans	6,173	6,905
Consumer Portfolio Segment [Member] | FUSB [Member] | Special Mention [Member]
Total loans
Consumer Portfolio Segment [Member] | FUSB [Member] | Substandard [Member]
Total loans	116	152
Consumer Portfolio Segment [Member] | FUSB [Member] | Doubtful [Member]
Total loans
Consumer Portfolio Segment [Member] | FUSB [Member]
Total loans	6,289	7,057
Consumer Portfolio Segment [Member] | ALC [Member] | Performing Financial Instruments [Member]
Total loans	79,664	74,743
Consumer Portfolio Segment [Member] | ALC [Member] | Nonperforming Financial Instruments [Member]
Total loans	1,251	1,388
Consumer Portfolio Segment [Member] | ALC [Member]
Total loans	80,915	76,131
Consumer Portfolio Segment [Member]
Total loans	87,204	83,188
Commercial and Industrial Loans [Member] | FUSB [Member] | Pass [Member]
Total loans	53,310	28,170
Commercial and Industrial Loans [Member] | FUSB [Member] | Special Mention [Member]
Total loans	881	482
Commercial and Industrial Loans [Member] | FUSB [Member] | Substandard [Member]
Total loans	268	725
Commercial and Industrial Loans [Member] | FUSB [Member] | Doubtful [Member]
Total loans
Commercial and Industrial Loans [Member] | FUSB [Member]
Total loans	54,459	29,377
Commercial and Industrial Loans [Member] | ALC [Member]
Total loans
Commercial and Industrial Loans [Member]
Total loans	54,459	29,377
Other Loans [Member] | FUSB [Member] | Pass [Member]
Total loans	46	379
Other Loans [Member] | FUSB [Member] | Special Mention [Member]
Total loans
Other Loans [Member] | FUSB [Member] | Substandard [Member]
Total loans
Other Loans [Member] | FUSB [Member] | Doubtful [Member]
Total loans
Other Loans [Member] | FUSB [Member]
Total loans	46	379
Other Loans [Member] | ALC [Member]
Total loans
Other Loans [Member]
Total loans	46	379
FUSB [Member] | Pass [Member]
Total loans	224,384	165,175
FUSB [Member] | Special Mention [Member]
Total loans	4,885	5,025
FUSB [Member] | Substandard [Member]
Total loans	3,539	5,013
FUSB [Member] | Doubtful [Member]
Total loans
FUSB [Member]
Total loans	232,808	175,213
ALC [Member] | Performing Financial Instruments [Member]
Total loans	93,877	91,707
ALC [Member] | Nonperforming Financial Instruments [Member]
Total loans	1,500	1,657
ALC [Member]
Total loans	95,377	93,364
Total loans	$ 328,185	$ 268,577

X

- 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.

+ 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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