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Note 4 - Loans and Allowance for Loan Losses - Carrying Amount of Loans By Credit Quality Indicator (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Total loans	$ 341,657	$ 334,781
FUSB [Member]
Total loans	245,374	239,869
FUSB [Member] | Pass [Member]
Total loans	237,771	231,785
FUSB [Member] | Special Mention [Member]
Total loans	4,583	4,755
FUSB [Member] | Substandard [Member]
Total loans	3,020	3,329
FUSB [Member] | Doubtful [Member]
Total loans
ALC [Member]
Total loans	96,283	94,912
ALC [Member] | Performing Financial Instruments [Member]
Total loans	94,790	93,013
ALC [Member] | Nonperforming Financial Instruments [Member]
Total loans	1,493	1,899
Consumer Portfolio Segment [Member] | FUSB [Member]
Total loans	5,671	6,206
Consumer Portfolio Segment [Member] | FUSB [Member] | Pass [Member]
Total loans	5,671	6,126
Consumer Portfolio Segment [Member] | FUSB [Member] | Special Mention [Member]
Total loans
Consumer Portfolio Segment [Member] | FUSB [Member] | Substandard [Member]
Total loans		80
Consumer Portfolio Segment [Member] | FUSB [Member] | Doubtful [Member]
Total loans
Commercial and Industrial Loans [Member]
Total loans	65,087	57,963
Commercial and Industrial Loans [Member] | FUSB [Member]
Total loans	65,087	57,963
Commercial and Industrial Loans [Member] | FUSB [Member] | Pass [Member]
Total loans	62,717	55,481
Commercial and Industrial Loans [Member] | FUSB [Member] | Special Mention [Member]
Total loans	2,142	2,227
Commercial and Industrial Loans [Member] | FUSB [Member] | Substandard [Member]
Total loans	228	255
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	12,424	23,772
Construction, Land Development and Other Land Loans [Member] | Real Estate [Member] | FUSB [Member]
Total loans	12,424	23,772
Construction, Land Development and Other Land Loans [Member] | Real Estate [Member] | FUSB [Member] | Pass [Member]
Total loans	10,961	22,240
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	1,463	1,532
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	44,456	46,679
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | FUSB [Member]
Total loans	32,227	32,955
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Pass [Member]
Total loans	31,231	31,995
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Special Mention [Member]
Total loans	205	213
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Substandard [Member]
Total loans	791	747
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	12,229	13,724
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | ALC [Member] | Performing Financial Instruments [Member]
Total loans	12,058	13,507
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | ALC [Member] | Nonperforming Financial Instruments [Member]
Total loans	171	217
Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | ALC [Member]
Total loans		13,724
Consumer Loans [Member] | Consumer Portfolio Segment [Member]
Total loans	37,591	42,619
Consumer Loans [Member] | Consumer Portfolio Segment [Member] | FUSB [Member]
Total loans	5,671	6,206
Consumer Loans [Member] | Consumer Portfolio Segment [Member] | ALC [Member]
Total loans	31,920	36,413
Consumer Loans [Member] | Consumer Portfolio Segment [Member] | ALC [Member] | Performing Financial Instruments [Member]
Total loans	31,123	35,278
Consumer Loans [Member] | Consumer Portfolio Segment [Member] | ALC [Member] | Nonperforming Financial Instruments [Member]
Total loans	797	1,135
Indirect Sales [Member] | Consumer Portfolio Segment [Member]
Total loans	52,134	44,775
Indirect Sales [Member] | Consumer Portfolio Segment [Member] | FUSB [Member]
Total loans
Indirect Sales [Member] | Consumer Portfolio Segment [Member] | ALC [Member]
Total loans	52,134	44,775
Indirect Sales [Member] | Consumer Portfolio Segment [Member] | ALC [Member] | Performing Financial Instruments [Member]
Total loans	51,609	44,228
Indirect Sales [Member] | Consumer Portfolio Segment [Member] | ALC [Member] | Nonperforming Financial Instruments [Member]
Total loans	525	547
Secured by Multi-family Residential Properties [Member] | Real Estate [Member]
Total loans	16,702	16,627
Secured by Multi-family Residential Properties [Member] | Real Estate [Member] | FUSB [Member]
Total loans	16,702	16,627
Secured by Multi-family Residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Pass [Member]
Total loans	16,702	16,627
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
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member]
Total loans	113,037	102,112
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member] | FUSB [Member]
Total loans	113,037	102,112
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Pass [Member]
Total loans	110,263	99,082
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Special Mention [Member]
Total loans	2,236	2,315
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Substandard [Member]
Total loans	538	715
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	226	234
Other Real Estate Loans [Member] | Real Estate [Member] | FUSB [Member]
Total loans	226	234
Other Real Estate Loans [Member] | Real Estate [Member] | FUSB [Member] | Pass [Member]
Total loans	226	234
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=82891408&loc=d3e4428-111522

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