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Note 4 - Loans and Allowance for Loan Losses - Loans By Credit Quality Indicator (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Total loans	$ 367,115	$ 357,458
FUSB [Member]
Total loans	257,608	257,503
FUSB [Member] | Pass [Member]
Total loans	250,729	248,610
FUSB [Member] | Special Mention [Member]
Total loans	4,544	7,255
FUSB [Member] | Substandard [Member]
Total loans	2,335	1,638
FUSB [Member] | Doubtful [Member]
Total loans
ALC [Member]
Total loans	109,507	99,955
ALC [Member] | Performing Financial Instruments [Member]
Total loans	108,154	98,039
ALC [Member] | Nonperforming Financial Instruments [Member]
Total loans	1,353	1,916
Consumer Portfolio Segment [Member] | FUSB [Member]
Total loans	5,420	5,217
Consumer Portfolio Segment [Member] | FUSB [Member] | Pass [Member]
Total loans	5,334	5,155
Consumer Portfolio Segment [Member] | FUSB [Member] | Special Mention [Member]
Total loans
Consumer Portfolio Segment [Member] | FUSB [Member] | Substandard [Member]
Total loans	86	62
Consumer Portfolio Segment [Member] | FUSB [Member] | Doubtful [Member]
Total loans
Commercial and Industrial Loans [Member]
Total loans	59,320	69,969
Commercial and Industrial Loans [Member] | FUSB [Member]
Total loans	59,320	69,969
Commercial and Industrial Loans [Member] | FUSB [Member] | Pass [Member]
Total loans	56,935	67,689
Commercial and Industrial Loans [Member] | FUSB [Member] | Special Mention [Member]
Total loans	2,047	2,066
Commercial and Industrial Loans [Member] | FUSB [Member] | Substandard [Member]
Total loans	338	214
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	22,878	26,143
Construction, Land Development and Other Land Loans [Member] | Real Estate [Member] | FUSB [Member]
Total loans	22,878	26,143
Construction, Land Development and Other Land Loans [Member] | Real Estate [Member] | FUSB [Member] | Pass [Member]
Total loans	22,614	25,872
Construction, Land Development and Other Land Loans [Member] | Real Estate [Member] | FUSB [Member] | Special Mention [Member]
Total loans	83	84
Construction, Land Development and Other Land Loans [Member] | Real Estate [Member] | FUSB [Member] | Substandard [Member]
Total loans	181	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	48,144	45,073
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | FUSB [Member]
Total loans	38,968	34,272
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Pass [Member]
Total loans	37,831	33,278
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Special Mention [Member]
Total loans	345	339
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Substandard [Member]
Total loans	792	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	9,176	10,801
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | ALC [Member] | Performing Financial Instruments [Member]
Total loans	8,994	10,495
Secured by 1-4 Family Residential Properties [Member] | Real Estate [Member] | ALC [Member] | Nonperforming Financial Instruments [Member]
Total loans	182	306
Consumer Loans [Member] | Consumer Portfolio Segment [Member]
Total loans	38,322	39,300
Consumer Loans [Member] | Consumer Portfolio Segment [Member] | FUSB [Member]
Total loans	5,420	5,217
Consumer Loans [Member] | Consumer Portfolio Segment [Member] | ALC [Member]
Total loans	32,902	34,083
Consumer Loans [Member] | Consumer Portfolio Segment [Member] | ALC [Member] | Performing Financial Instruments [Member]
Total loans	32,082	32,933
Consumer Loans [Member] | Consumer Portfolio Segment [Member] | ALC [Member] | Nonperforming Financial Instruments [Member]
Total loans	820	1,150
Indirect Sales [Member] | Consumer Portfolio Segment [Member]
Total loans	67,429	55,071
Indirect Sales [Member] | Consumer Portfolio Segment [Member] | FUSB [Member]
Total loans
Indirect Sales [Member] | Consumer Portfolio Segment [Member] | ALC [Member]
Total loans	67,429	55,071
Indirect Sales [Member] | Consumer Portfolio Segment [Member] | ALC [Member] | Performing Financial Instruments [Member]
Total loans	67,078	54,611
Indirect Sales [Member] | Consumer Portfolio Segment [Member] | ALC [Member] | Nonperforming Financial Instruments [Member]
Total loans	351	460
Secured by Multi-family Residential Properties [Member] | Real Estate [Member]
Total loans	18,374	16,579
Secured by Multi-family Residential Properties [Member] | Real Estate [Member] | FUSB [Member]
Total loans	18,374	16,579
Secured by Multi-family Residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Pass [Member]
Total loans	18,374	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
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member]
Total loans	112,461	105,133
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member] | FUSB [Member]
Total loans	112,461	105,133
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Pass [Member]
Total loans	109,454	99,847
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Special Mention [Member]
Total loans	2,069	4,766
Secured by Non-farm, Non-residential Properties [Member] | Real Estate [Member] | FUSB [Member] | Substandard [Member]
Total loans	938	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	187	190
Other Real Estate Loans [Member] | Real Estate [Member] | FUSB [Member]
Total loans	187	190
Other Real Estate Loans [Member] | Real Estate [Member] | FUSB [Member] | Pass [Member]
Total loans	187	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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