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Note 4 - Loans and Allowance for Loan Losses - Loans By Credit Quality Indicator (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Total loans	$ 365,003	$ 357,458
FUSB [Member]
Total loans	262,125	257,503
FUSB [Member] | Pass [Member]
Total loans	255,905	248,610
FUSB [Member] | Special Mention [Member]
Total loans	4,557	7,255
FUSB [Member] | Substandard [Member]
Total loans	1,663	1,638
FUSB [Member] | Doubtful [Member]
Total loans
ALC [Member]
Total loans	102,878	99,955
ALC [Member] | Performing Financial Instruments [Member]
Total loans	101,210	98,039
ALC [Member] | Nonperforming Financial Instruments [Member]
Total loans	1,668	1,916
Consumer Portfolio Segment [Member] | FUSB [Member]
Total loans	5,416	5,217
Consumer Portfolio Segment [Member] | FUSB [Member] | Pass [Member]
Total loans	5,358	5,155
Consumer Portfolio Segment [Member] | FUSB [Member] | Special Mention [Member]
Total loans
Consumer Portfolio Segment [Member] | FUSB [Member] | Substandard [Member]
Total loans	58	62
Consumer Portfolio Segment [Member] | FUSB [Member] | Doubtful [Member]
Total loans
Commercial and Industrial Loans [Member]
Total loans	65,996	69,969
Commercial and Industrial Loans [Member] | FUSB [Member]
Total loans	65,996	69,969
Commercial and Industrial Loans [Member] | FUSB [Member] | Pass [Member]
Total loans	63,764	67,689
Commercial and Industrial Loans [Member] | FUSB [Member] | Special Mention [Member]
Total loans	2,033	2,066
Commercial and Industrial Loans [Member] | FUSB [Member] | Substandard [Member]
Total loans	199	214
Commercial and Industrial Loans [Member] | FUSB [Member] | Doubtful [Member]
Total loans
Commercial and Industrial Loans [Member] | ALC [Member]
Total loans
Other Loans [Member] | FUSB [Member]
Total loans
Other Loans [Member] | FUSB [Member] | Pass [Member]
Total loans
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
Construction, Land Development and Other Land Loans [Member] | Real Estate [Member]
Total loans	25,965	26,143
Construction, Land Development and Other Land Loans [Member] | Real Estate [Member] | FUSB [Member]
Total loans	25,965	26,143
Construction, Land Development and Other Land Loans [Member] | Real Estate [Member] | FUSB [Member] | Pass [Member]
Total loans	25,697	25,872
Construction, Land Development and Other Land Loans [Member] | Real Estate [Member] | FUSB [Member] | Special Mention [Member]
Total loans	85	84
Construction, Land Development and Other Land Loans [Member] | Real Estate [Member] | FUSB [Member] | Substandard [Member]
Total loans	183	187
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	46,581	45,073
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | FUSB [Member]
Total loans	36,618	34,272
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Pass [Member]
Total loans	35,569	33,278
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Special Mention [Member]
Total loans	335	339
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Substandard [Member]
Total loans	714	655
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	9,963	10,801
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | ALC [Member] | Performing Financial Instruments [Member]
Total loans	9,732	10,495
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | ALC [Member] | Nonperforming Financial Instruments [Member]
Total loans	231	306
Consumer Loans [Member] | Consumer Portfolio Segment [Member]
Total loans	38,174	39,300
Consumer Loans [Member] | Consumer Portfolio Segment [Member] | FUSB [Member]
Total loans	5,416	5,217
Consumer Loans [Member] | Consumer Portfolio Segment [Member] | ALC [Member]
Total loans	32,758	34,083
Consumer Loans [Member] | Consumer Portfolio Segment [Member] | ALC [Member] | Performing Financial Instruments [Member]
Total loans	31,861	32,933
Consumer Loans [Member] | Consumer Portfolio Segment [Member] | ALC [Member] | Nonperforming Financial Instruments [Member]
Total loans	897	1,150
Secured by Multi-family Residential Properties [Member] | Real Estate [Member]
Total loans	16,396	16,579
Secured by Multi-family Residential Properties [Member] | Real Estate [Member] | FUSB [Member]
Total loans	16,396	16,579
Secured by Multi-family Residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Pass [Member]
Total loans	16,396	16,579
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	60,157	55,071
Indirect Sales [Member] | Consumer Portfolio Segment [Member] | FUSB [Member]
Total loans
Indirect Sales [Member] | Consumer Portfolio Segment [Member] | ALC [Member]
Total loans	60,157	55,071
Indirect Sales [Member] | Consumer Portfolio Segment [Member] | ALC [Member] | Performing Financial Instruments [Member]
Total loans	59,617	54,611
Indirect Sales [Member] | Consumer Portfolio Segment [Member] | ALC [Member] | Nonperforming Financial Instruments [Member]
Total loans	540	460
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member]
Total loans	111,546	105,133
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member] | FUSB [Member]
Total loans	111,546	105,133
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Pass [Member]
Total loans	108,933	99,847
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Special Mention [Member]
Total loans	2,104	4,766
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Substandard [Member]
Total loans	509	520
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	188	190
Other Real Estate Loans [Member] | Real Estate [Member] | FUSB [Member]
Total loans	188	190
Other Real Estate Loans [Member] | Real Estate [Member] | FUSB [Member] | Pass [Member]
Total loans	188	190
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://fasb.org/us-gaap/role/ref/legacyRef
-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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