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Note 4 - Loans and Allowance for Loan Losses - Aging Analysis of Past Due Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Total loans	$ 365,003	$ 357,458
Real Estate [Member] | Construction, Land Development and Other Land Loans [Member]
Total loans	25,965	26,143
Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member]
Total loans	46,581	45,073
Real Estate [Member] | Secured by Multi-family Residential Properties [Member]
Total loans	16,396	16,579
Real Estate [Member] | Secured by Non-farm, Non-residential Properties [Member]
Total loans	111,546	105,133
Real Estate [Member] | Other Real Estate Loans [Member]
Total loans	188	190
Commercial and Industrial Loans [Member]
Total loans	65,996	69,969
Consumer Portfolio Segment [Member] | Consumer Loans [Member]
Total loans	38,174	39,300
Consumer Portfolio Segment [Member] | Indirect Sales [Member]
Total loans	60,157	55,071
FUSB [Member]
Total past due	448	404
Current	261,677	257,099
Total loans	262,125	257,503
Accruing loans past due 90 days or more amounted
FUSB [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Total past due	326	352
FUSB [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Total past due	82	52
FUSB [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Total past due	40
FUSB [Member] | Real Estate [Member] | Construction, Land Development and Other Land Loans [Member]
Total past due
Current	25,965	26,143
Total loans	25,965	26,143
Accruing loans past due 90 days or more amounted
FUSB [Member] | Real Estate [Member] | Construction, Land Development and Other Land Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Total past due
FUSB [Member] | Real Estate [Member] | Construction, Land Development and Other Land Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Total past due
FUSB [Member] | Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member]
Total past due	255	279
Current	36,363	33,993
Total loans	36,618	34,272
Accruing loans past due 90 days or more amounted
FUSB [Member] | Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Total past due	154	227
FUSB [Member] | Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Total past due	82	52
FUSB [Member] | Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Total past due	19
FUSB [Member] | Real Estate [Member] | Secured by Multi-family Residential Properties [Member]
Current	16,396	16,579
Total loans	16,396	16,579
Accruing loans past due 90 days or more amounted
FUSB [Member] | Real Estate [Member] | Secured by Non-farm, Non-residential Properties [Member]
Total past due	115	13
Current	111,431	105,120
Total loans	111,546	105,133
Accruing loans past due 90 days or more amounted
FUSB [Member] | Real Estate [Member] | Secured by Non-farm, Non-residential Properties [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Total past due	115	13
FUSB [Member] | Real Estate [Member] | Secured by Non-farm, Non-residential Properties [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Total past due
FUSB [Member] | Real Estate [Member] | Other Real Estate Loans [Member]
Current	188	190
Total loans	188	190
Accruing loans past due 90 days or more amounted
FUSB [Member] | Commercial and Industrial Loans [Member]
Total past due	57	70
Current	65,939	69,899
Total loans	65,996	69,969
Accruing loans past due 90 days or more amounted
FUSB [Member] | Commercial and Industrial Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Total past due	36	70
FUSB [Member] | Commercial and Industrial Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Total past due
FUSB [Member] | Commercial and Industrial Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Total past due	21
FUSB [Member] | Consumer Portfolio Segment [Member]
Total past due	21	42
Current	5,395	5,175
Total loans	5,416	5,217
Accruing loans past due 90 days or more amounted
FUSB [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Total past due	21	42
FUSB [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Total past due
FUSB [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Total past due
FUSB [Member] | Consumer Portfolio Segment [Member] | Consumer Loans [Member]
Total loans	5,416	5,217
FUSB [Member] | Consumer Portfolio Segment [Member] | Indirect Sales [Member]
Total loans
ALC [Member]
Total past due	3,069	3,242
Current	99,809	96,713
Total loans	102,878	99,955
Accruing loans past due 90 days or more amounted
ALC [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Total past due	874	832
ALC [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Total past due	1,668	1,834
ALC [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Total past due	527	576
ALC [Member] | Real Estate [Member] | Construction, Land Development and Other Land Loans [Member]
Total loans
Accruing loans past due 90 days or more amounted
ALC [Member] | Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member]
Total past due	363	374
Current	9,600	10,427
Total loans	9,963	10,801
Accruing loans past due 90 days or more amounted
ALC [Member] | Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Total past due	104	61
ALC [Member] | Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Total past due	231	290
ALC [Member] | Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Total past due	28	23
ALC [Member] | Real Estate [Member] | Secured by Multi-family Residential Properties [Member]
Current
Total loans
Accruing loans past due 90 days or more amounted
ALC [Member] | Real Estate [Member] | Secured by Non-farm, Non-residential Properties [Member]
Current
Total loans
Accruing loans past due 90 days or more amounted
ALC [Member] | Real Estate [Member] | Other Real Estate Loans [Member]
Current
Total loans
Accruing loans past due 90 days or more amounted
ALC [Member] | Commercial and Industrial Loans [Member]
Current
Total loans
Accruing loans past due 90 days or more amounted
ALC [Member] | Consumer Portfolio Segment [Member] | Consumer Loans [Member]
Total past due	1,746	1,924
Current	31,012	32,159
Total loans	32,758	34,083
Accruing loans past due 90 days or more amounted
ALC [Member] | Consumer Portfolio Segment [Member] | Consumer Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Total past due	526	490
ALC [Member] | Consumer Portfolio Segment [Member] | Consumer Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Total past due	897	1,111
ALC [Member] | Consumer Portfolio Segment [Member] | Consumer Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Total past due	323	323
ALC [Member] | Consumer Portfolio Segment [Member] | Indirect Sales [Member]
Total past due	960	944
Current	59,197	54,127
Total loans	60,157	55,071
Accruing loans past due 90 days or more amounted
ALC [Member] | Consumer Portfolio Segment [Member] | Indirect Sales [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Total past due	244	281
ALC [Member] | Consumer Portfolio Segment [Member] | Indirect Sales [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Total past due	540	433
ALC [Member] | Consumer Portfolio Segment [Member] | Indirect Sales [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Total past due	$ 176	$ 230

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- Definition

Recorded investment in financing receivables that are 90 days or more past due and still accruing.

+ References

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-Publisher FASB
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-Topic 310
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