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Note 4 - Loans and Allowance for Loan Losses - Changes in Allowance for Loan Losses and Recorded Investment in Loans (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Beginning balance				$ 3,781					$ 3,781
Provision for loan losses	$ 1,814	$ 680	$ 536	167	$ 415	$ (78)	$ 45	$ (166)	3,197	$ 216
Ending balance	4,856				3,781				4,856	3,781
Total loans	334,781				268,577				334,781	268,577
Real Estate [Member] | Construction, Land Development and Other Land Loans [Member]
Total loans	23,772				11,827				23,772	11,827
Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member]
Total loans	46,679				47,963				46,679	47,963
Real Estate [Member] | Secured by Multi-family Residential Properties [Member]
Total loans	16,627				11,845				16,627	11,845
Real Estate [Member] | Secured by Non-farm, Non-residential Properties [Member]
Total loans	102,112				83,883				102,112	83,883
Real Estate [Member] | Other Real Estate Loans [Member]
Total loans	234				115				234	115
Commercial and Industrial Loans [Member]
Total loans	57,963				29,377				57,963	29,377
Consumer Portfolio Segment [Member] | Consumer Loans[Member]
Total loans	42,619				45,634				42,619	45,634
Consumer Portfolio Segment [Member] | Indirect Sales [Member]
Total loans	44,775				37,933				44,775	37,933
ALC [Member]
Beginning balance				2,452				2,682	2,452	2,682
Charge-offs									(3,026)	(2,739)
Recoveries									710	734
Provision for loan losses									2,311	1,775
Ending balance	2,447				2,452				2,447	2,452
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	2,447				2,452				2,447	2,452
Total loans	94,912				93,364				94,912	93,364
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	94,912				93,364				94,912	93,364
ALC [Member] | Real Estate [Member] | Construction, Land Development and Other Land Loans [Member]
Beginning balance
Charge-offs
Recoveries
Provision for loan losses
Ending balance
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment
Total loans
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment
ALC [Member] | Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member]
Beginning balance				250				346	250	346
Charge-offs									(56)	(187)
Recoveries									39	22
Provision for loan losses									(126)	69
Ending balance	107				250				107	250
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	107				250				107	250
Total loans	13,724				17,233				13,724	17,233
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	13,724				17,233				13,724	17,233
ALC [Member] | Real Estate [Member] | Secured by Multi-family Residential Properties [Member]
Beginning balance
Charge-offs
Recoveries
Provision for loan losses
Ending balance
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment
Total loans
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment
ALC [Member] | Real Estate [Member] | Secured by Non-farm, Non-residential Properties [Member]
Beginning balance
Charge-offs
Recoveries
Provision for loan losses
Ending balance
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment
Total loans
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment
ALC [Member] | Real Estate [Member] | Other Real Estate Loans [Member]
Beginning balance
Charge-offs
Recoveries
Provision for loan losses
Ending balance
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment
Total loans
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment
ALC [Member] | Commercial and Industrial Loans [Member]
Beginning balance
Charge-offs
Recoveries
Provision for loan losses
Ending balance
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment
Total loans
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment
ALC [Member] | Consumer Portfolio Segment [Member] | Consumer Loans[Member]
Beginning balance				1,584				1,962	1,584	1,962
Charge-offs									(2,218)	(1,638)
Recoveries									451	547
Provision for loan losses									1,900	713
Ending balance	1,717				1,584				1,717	1,584
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	1,717				1,584				1,717	1,584
Total loans	36,413				38,198				36,413	38,198
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	36,413				38,198				36,413	38,198
ALC [Member] | Consumer Portfolio Segment [Member] | Indirect Sales [Member]
Beginning balance				618				374	618	374
Charge-offs									(752)	(914)
Recoveries									220	165
Provision for loan losses									537	993
Ending balance	623				618				623	618
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	623				618				623	618
Total loans	44,775				37,933				44,775	37,933
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	44,775				37,933				44,775	37,933
FUSB and ALC [Member]
Beginning balance				3,781				6,168	3,781	6,168
Charge-offs									(3,177)	(3,591)
Recoveries									1,056	988
Provision for loan losses									3,196	216
Ending balance	4,856				3,781				4,856	3,781
Ending balance, individually evaluated for impairment	535				310				535	310
Ending balance, collectively evaluated for impairment	4,321				3,471				4,321	3,471
Total loans	334,781				268,577				334,781	268,577
Ending balance, individually evaluated for impairment	2,103				2,714				2,103	2,714
Ending balance, collectively evaluated for impairment	332,678				265,863				332,678	265,863
FUSB and ALC [Member] | Real Estate [Member] | Construction, Land Development and Other Land Loans [Member]
Beginning balance				110				10	110	10
Charge-offs										(53)
Recoveries									200
Provision for loan losses									225	153
Ending balance	535				110				535	110
Ending balance, individually evaluated for impairment	423				95				423	95
Ending balance, collectively evaluated for impairment	112				15				112	15
Total loans	23,772				11,827				23,772	11,827
Ending balance, individually evaluated for impairment	1,361				1,445				1,361	1,445
Ending balance, collectively evaluated for impairment	22,411				10,382				22,411	10,382
FUSB and ALC [Member] | Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member]
Beginning balance				388				783	388	783
Charge-offs									(122)	(240)
Recoveries									62	62
Provision for loan losses									83	(217)
Ending balance	411				388				411	388
Ending balance, individually evaluated for impairment	5				5				5	5
Ending balance, collectively evaluated for impairment	406				383				406	383
Total loans	46,679				47,963				46,679	47,963
Ending balance, individually evaluated for impairment	193				252				193	252
Ending balance, collectively evaluated for impairment	46,486				47,711				46,486	47,711
FUSB and ALC [Member] | Real Estate [Member] | Secured by Multi-family Residential Properties [Member]
Beginning balance				29				1,460	29	1,460
Charge-offs										(690)
Recoveries										11
Provision for loan losses									59	(752)
Ending balance	88				29				88	29
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	88				29				88	29
Total loans	16,627				11,845				16,627	11,845
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	16,627				11,845				16,627	11,845
FUSB and ALC [Member] | Real Estate [Member] | Secured by Non-farm, Non-residential Properties [Member]
Beginning balance				351				1,323	351	1,323
Charge-offs									(40)	(39)
Recoveries										45
Provision for loan losses									592	(978)
Ending balance	903				351				903	351
Ending balance, individually evaluated for impairment	107				130				107	130
Ending balance, collectively evaluated for impairment	798				221				798	221
Total loans	102,112				83,883				102,112	83,883
Ending balance, individually evaluated for impairment	549				573				549	573
Ending balance, collectively evaluated for impairment	101,563				83,310				101,563	83,310
FUSB and ALC [Member] | Real Estate [Member] | Other Real Estate Loans [Member]
Beginning balance				1				1	1	1
Charge-offs
Recoveries
Provision for loan losses									1
Ending balance	2				1				2	1
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	2				1				2	1
Total loans	234				115				234	115
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	234				115				234	115
FUSB and ALC [Member] | Commercial and Industrial Loans [Member]
Beginning balance				659				141	659	141
Charge-offs									(2)	(17)
Recoveries									73	61
Provision for loan losses									(203)	474
Ending balance	527				659				527	659
Ending balance, individually evaluated for impairment					80					80
Ending balance, collectively evaluated for impairment	527				579				527	579
Total loans	57,963				29,377				57,963	29,377
Ending balance, individually evaluated for impairment					444					444
Ending balance, collectively evaluated for impairment	57,963				28,933				57,963	28,933
FUSB and ALC [Member] | Consumer Portfolio Segment [Member] | Consumer Loans[Member]
Beginning balance				1,625				2,076	1,625	2,076
Charge-offs									(2,261)	(2,039)
Recoveries									501	737
Provision for loan losses									1,902	851
Ending balance	1,767				1,625				1,767	1,625
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	1,767				1,625				1,767	1,625
Total loans	42,619				45,634				42,619	45,634
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	42,619				45,634				42,619	45,634
FUSB and ALC [Member] | Consumer Portfolio Segment [Member] | Indirect Sales [Member]
Beginning balance				618				374	618	374
Charge-offs									(752)	(513)
Recoveries									220	72
Provision for loan losses									537	685
Ending balance	623				618				623	618
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	623				618				623	618
Total loans	44,775				37,933				44,775	37,933
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	44,775				37,933				44,775	37,933
FUSB [Member]
Beginning balance				1,329				3,486	1,329	3,486
Charge-offs									(151)	(852)
Recoveries									346	254
Provision for loan losses									885	(1,559)
Ending balance	2,409				1,329				2,409	1,329
Ending balance, individually evaluated for impairment	535				310				535	310
Ending balance, collectively evaluated for impairment	1,874				1,019				1,874	1,019
Total loans	239,869				175,213				239,869	175,213
Ending balance, individually evaluated for impairment	2,103				2,714				2,103	2,714
Ending balance, collectively evaluated for impairment	237,766				172,499				237,766	172,499
FUSB [Member] | Real Estate [Member] | Construction, Land Development and Other Land Loans [Member]
Beginning balance				110				10	110	10
Charge-offs										(53)
Recoveries									200
Provision for loan losses									225	153
Ending balance	535				110				535	110
Ending balance, individually evaluated for impairment	423				95				423	95
Ending balance, collectively evaluated for impairment	112				15				112	15
Total loans	23,772				11,827				23,772	11,827
Ending balance, individually evaluated for impairment	1,361				1,445				1,361	1,445
Ending balance, collectively evaluated for impairment	22,411				10,382				22,411	10,382
FUSB [Member] | Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member]
Beginning balance				138				437	138	437
Charge-offs									(66)	(53)
Recoveries									23	40
Provision for loan losses									209	(286)
Ending balance	304				138				304	138
Ending balance, individually evaluated for impairment	5				5				5	5
Ending balance, collectively evaluated for impairment	299				133				299	133
Total loans	32,955				30,730				32,955	30,730
Ending balance, individually evaluated for impairment	193				252				193	252
Ending balance, collectively evaluated for impairment	32,762				30,478				32,762	30,478
FUSB [Member] | Real Estate [Member] | Secured by Multi-family Residential Properties [Member]
Beginning balance				29				1,460	29	1,460
Charge-offs										(690)
Recoveries										11
Provision for loan losses									59	(752)
Ending balance	88				29				88	29
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	88				29				88	29
Total loans	16,627				11,845				16,627	11,845
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	16,627				11,845				16,627	11,845
FUSB [Member] | Real Estate [Member] | Secured by Non-farm, Non-residential Properties [Member]
Beginning balance				351				1,323	351	1,323
Charge-offs									(40)	(39)
Recoveries										45
Provision for loan losses									592	(978)
Ending balance	903				351				903	351
Ending balance, individually evaluated for impairment	107				130				107	130
Ending balance, collectively evaluated for impairment	796				221				796	221
Total loans	102,112				83,883				102,112	83,883
Ending balance, individually evaluated for impairment	549				573				549	573
Ending balance, collectively evaluated for impairment	101,563				81,310				101,563	81,310
FUSB [Member] | Real Estate [Member] | Other Real Estate Loans [Member]
Beginning balance				1				1	1	1
Charge-offs
Recoveries
Provision for loan losses									1
Ending balance	2				1				2	1
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	2				1				2	1
Total loans	234				115				234	115
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	234				115				234	115
FUSB [Member] | Commercial and Industrial Loans [Member]
Beginning balance				659				141	659	141
Charge-offs									(2)	(17)
Recoveries									73	61
Provision for loan losses									(203)	474
Ending balance	527				659				527	659
Ending balance, individually evaluated for impairment					80					80
Ending balance, collectively evaluated for impairment	527				579				527	579
Total loans	57,963				29,377				57,963	29,377
Ending balance, individually evaluated for impairment					444					444
Ending balance, collectively evaluated for impairment	57,963				28,933				57,963	28,933
FUSB [Member] | Consumer Portfolio Segment [Member]
Total loans	6,206				7,436				6,206	7,436
FUSB [Member] | Consumer Portfolio Segment [Member] | Consumer Loans[Member]
Beginning balance				41				114	41	114
Charge-offs									(43)
Recoveries									50	97
Provision for loan losses									2	(170)
Ending balance	50				41				50	41
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	50				41				50	41
Total loans	6,206				7,436				6,206	7,436
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	6,206				7,436				6,206	7,436
FUSB [Member] | Consumer Portfolio Segment [Member] | Indirect Sales [Member]
Beginning balance
Charge-offs
Recoveries
Provision for loan losses
Ending balance
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment
Total loans
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment

X

- Definition

Represents the amount of provision (reduction in reserve) for loan losses during the period.

+ References

No definition available.

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Amount of direct write-downs of accounts receivable charged against the allowance.

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Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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