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Note 4 - Loans and Allowance for Loan Losses - Carrying Amount of Loans By Credit Quality Indicator (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Total loans	$ 334,781	$ 268,577
FUSB [Member]
Total loans	239,869	175,213
FUSB [Member] | Pass [Member]
Total loans	231,785	165,175
FUSB [Member] | Special Mention [Member]
Total loans	4,755	5,025
FUSB [Member] | Substandard [Member]
Total loans	3,329	5,013
FUSB [Member] | Doubtful [Member]
Total loans
ALC [Member]
Total loans	94,912	93,364
ALC [Member] | Performing Financial Instruments [Member]
Total loans	93,013	91,707
ALC [Member] | Nonperforming Financial Instruments [Member]
Total loans	1,899	1,657
Consumer Portfolio Segment [Member] | FUSB [Member]
Total loans	6,206	7,436
Consumer Portfolio Segment [Member] | FUSB [Member] | Pass [Member]
Total loans	6,126	7,284
Consumer Portfolio Segment [Member] | FUSB [Member] | Special Mention [Member]
Total loans
Consumer Portfolio Segment [Member] | FUSB [Member] | Substandard [Member]
Total loans	80	152
Consumer Portfolio Segment [Member] | FUSB [Member] | Doubtful [Member]
Total loans
Commercial and Industrial Loans [Member]
Total loans	57,963	29,377
Commercial and Industrial Loans [Member] | FUSB [Member]
Total loans	57,963	29,377
Commercial and Industrial Loans [Member] | FUSB [Member] | Pass [Member]
Total loans	55,481	28,170
Commercial and Industrial Loans [Member] | FUSB [Member] | Special Mention [Member]
Total loans	2,227	482
Commercial and Industrial Loans [Member] | FUSB [Member] | Substandard [Member]
Total loans	255	725
Commercial and Industrial Loans [Member] | FUSB [Member] | Doubtful [Member]
Total loans
Commercial and Industrial Loans [Member] | ALC [Member]
Total loans
Construction, Land Development and Other Land Loans [Member] | Real Estate [Member]
Total loans	23,772	11,827
Construction, Land Development and Other Land Loans [Member] | Real Estate [Member] | FUSB [Member]
Total loans	23,772	11,827
Construction, Land Development and Other Land Loans [Member] | Real Estate [Member] | FUSB [Member] | Pass [Member]
Total loans	22,240	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	1,532	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] | ALC [Member]
Total loans
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member]
Total loans	46,679	47,963
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | FUSB [Member]
Total loans	32,955	30,730
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Pass [Member]
Total loans	31,995	29,252
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Special Mention [Member]
Total loans	213	228
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Substandard [Member]
Total loans	747	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] | ALC [Member]
Total loans	13,724	17,233
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | ALC [Member] | Performing Financial Instruments [Member]
Total loans	13,507	16,964
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | ALC [Member] | Nonperforming Financial Instruments [Member]
Total loans	217	269
Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | ALC [Member]
Total loans		17,233
Consumer Loans[Member] | Consumer Portfolio Segment [Member]
Total loans	42,619	45,634
Consumer Loans[Member] | Consumer Portfolio Segment [Member] | FUSB [Member]
Total loans	6,206	7,436
Consumer Loans[Member] | Consumer Portfolio Segment [Member] | ALC [Member]
Total loans	36,413	38,198
Consumer Loans[Member] | Consumer Portfolio Segment [Member] | ALC [Member] | Performing Financial Instruments [Member]
Total loans	35,278	37,195
Consumer Loans[Member] | Consumer Portfolio Segment [Member] | ALC [Member] | Nonperforming Financial Instruments [Member]
Total loans	1,135	1,003
Secured by Multi-family Residential Properties [Member] | Real Estate [Member]
Total loans	16,627	11,845
Secured by Multi-family Residential Properties [Member] | Real Estate [Member] | FUSB [Member]
Total loans	16,627	11,845
Secured by Multi-family Residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Pass [Member]
Total loans	16,627	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] | ALC [Member]
Total loans
Indirect Sales [Member] | Consumer Portfolio Segment [Member]
Total loans	44,775	37,933
Indirect Sales [Member] | Consumer Portfolio Segment [Member] | FUSB [Member]
Total loans
Indirect Sales [Member] | Consumer Portfolio Segment [Member] | ALC [Member]
Total loans	44,775	37,933
Indirect Sales [Member] | Consumer Portfolio Segment [Member] | ALC [Member] | Performing Financial Instruments [Member]
Total loans	44,228	37,548
Indirect Sales [Member] | Consumer Portfolio Segment [Member] | ALC [Member] | Nonperforming Financial Instruments [Member]
Total loans	547	385
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member]
Total loans	102,112	83,883
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member] | FUSB [Member]
Total loans	102,112	83,883
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Pass [Member]
Total loans	99,082	78,647
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Special Mention [Member]
Total loans	2,315	4,315
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Substandard [Member]
Total loans	715	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] | ALC [Member]
Total loans
Other Real Estate Loans [Member] | Real Estate [Member]
Total loans	234	115
Other Real Estate Loans [Member] | Real Estate [Member] | FUSB [Member]
Total loans	234	115
Other Real Estate Loans [Member] | Real Estate [Member] | FUSB [Member] | Pass [Member]
Total loans	234	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] | ALC [Member]
Total loans

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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