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Note 6 - 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
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Commercial Portfolio Segment [Member] | FUSB [Member]
Beginning balance	$ 133	$ 141	$ 141
Charge-offs
Recoveries	$ 12		$ 61
Provision (reduction in reserve) for loan losses	107		(69)
Ending balance	252		133
Ending balance, individually evaluated for impairment	72		80
Ending balance, collectively evaluated for impairment	180		53
Total loans	34,568		29,377
Ending balance, individually evaluated for impairment	436		444
Ending balance, collectively evaluated for impairment	34,132		28,933
Ending balance collectively evaluated for impairment	$ 34,132		$ 28,933
Commercial Portfolio Segment [Member] | ALC [Member]
Beginning balance
Charge-offs
Recoveries
Provision (reduction in reserve) 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
Ending balance collectively evaluated for impairment
Commercial Portfolio Segment [Member] | FUSB and ALC [Member]
Beginning balance	$ 133	$ 141	$ 141
Charge-offs
Recoveries	$ 12		$ 61
Provision (reduction in reserve) for loan losses	107		(69)
Ending balance	252		133
Ending balance, individually evaluated for impairment	72		80
Ending balance, collectively evaluated for impairment	180		53
Total loans	34,568		29,377
Ending balance, individually evaluated for impairment	436		444
Ending balance, collectively evaluated for impairment	34,132		28,933
Ending balance collectively evaluated for impairment	34,132		28,933
Commercial Real Estate Portfolio Segment [Member] | FUSB [Member]
Beginning balance	$ 1,118	$ 2,810	2,810
Charge-offs			(767)
Recoveries			12
Provision (reduction in reserve) for loan losses	$ (487)		(937)
Ending balance	631		1,118
Ending balance, individually evaluated for impairment	220		230
Ending balance, collectively evaluated for impairment	411		888
Total loans	112,525		107,670
Ending balance, individually evaluated for impairment	2,224		2,270
Ending balance, collectively evaluated for impairment	110,301		105,400
Ending balance collectively evaluated for impairment	$ 110,301		$ 105,400
Commercial Real Estate Portfolio Segment [Member] | ALC [Member]
Beginning balance
Charge-offs
Recoveries
Provision (reduction in reserve) 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
Ending balance collectively evaluated for impairment
Commercial Real Estate Portfolio Segment [Member] | FUSB and ALC [Member]
Beginning balance	$ 1,118	$ 2,810	$ 2,810
Charge-offs			(767)
Recoveries			12
Provision (reduction in reserve) for loan losses	$ (487)		(937)
Ending balance	631		1,118
Ending balance, individually evaluated for impairment	220		230
Ending balance, collectively evaluated for impairment	411		888
Total loans	112,525		107,670
Ending balance, individually evaluated for impairment	2,224		2,270
Ending balance, collectively evaluated for impairment	110,301		105,400
Ending balance collectively evaluated for impairment	110,301		105,400
Consumer Portfolio Segment [Member] | FUSB [Member]
Beginning balance	28	114	114
Charge-offs	(21)		(17)
Recoveries	23		70
Provision (reduction in reserve) for loan losses	(8)		(139)
Ending balance	$ 22		$ 28
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	$ 22		$ 28
Total loans	$ 6,614		$ 7,057
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	$ 6,614		$ 7,057
Ending balance collectively evaluated for impairment	6,614		7,057
Consumer Portfolio Segment [Member] | ALC [Member]
Beginning balance	2,202	2,336	2,336
Charge-offs	(765)		(2,552)
Recoveries	174		712
Provision (reduction in reserve) for loan losses	500		1,706
Ending balance	$ 2,111		$ 2,202
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	$ 2,111		$ 2,202
Total loans	$ 74,669		$ 76,131
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	$ 74,669		$ 76,131
Ending balance collectively evaluated for impairment	74,669		76,131
Consumer Portfolio Segment [Member] | FUSB and ALC [Member]
Beginning balance	2,230	2,450	2,450
Charge-offs	(786)		(2,569)
Recoveries	197		782
Provision (reduction in reserve) for loan losses	492		1,567
Ending balance	$ 2,133		$ 2,230
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	$ 2,133		$ 2,230
Total loans	$ 81,283		$ 83,188
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	$ 81,283		$ 83,188
Ending balance collectively evaluated for impairment	81,283		83,188
Consumer Portfolio Segment [Member]
Total loans	81,283		83,188
Residential Real Estate [Member | FUSB [Member]
Beginning balance	$ 36	421	421
Charge-offs			(68)
Recoveries	$ 5		111
Provision (reduction in reserve) for loan losses	117		(428)
Ending balance	$ 158		$ 36
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	$ 158		$ 36
Total loans	$ 30,623		$ 30,730
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	$ 30,623		$ 30,730
Ending balance collectively evaluated for impairment	30,623		30,730
Residential Real Estate [Member | ALC [Member]
Beginning balance	250	346	346
Charge-offs	(5)		(187)
Recoveries	4		22
Provision (reduction in reserve) for loan losses	(53)		69
Ending balance	$ 196		$ 250
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	$ 196		$ 250
Total loans	$ 16,265		$ 17,233
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	$ 16,265		$ 17,233
Ending balance collectively evaluated for impairment	16,265		17,233
Residential Real Estate [Member | FUSB and ALC [Member]
Beginning balance	286	$ 767	767
Charge-offs	(5)		(255)
Recoveries	9		133
Provision (reduction in reserve) for loan losses	64		(359)
Ending balance	$ 354		$ 286
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	$ 354		$ 286
Total loans	$ 46,888		$ 47,963
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	$ 46,888		$ 47,963
Ending balance collectively evaluated for impairment	46,888		$ 47,963
Other Loans [Member] | FUSB [Member]
Beginning balance	$ 14
Charge-offs
Recoveries
Provision (reduction in reserve) for loan losses	$ (9)		$ 14
Ending balance	$ 5		$ 14
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	$ 5		$ 14
Total loans	$ 407		$ 379
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	$ 407		$ 379
Ending balance collectively evaluated for impairment	$ 407		$ 379
Other Loans [Member] | ALC [Member]
Beginning balance
Charge-offs
Recoveries
Provision (reduction in reserve) 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
Ending balance collectively evaluated for impairment
Other Loans [Member] | FUSB and ALC [Member]
Beginning balance	$ 14
Charge-offs
Recoveries
Provision (reduction in reserve) for loan losses	$ (9)		$ 14
Ending balance	$ 5		$ 14
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	$ 5		$ 14
Total loans	$ 407		$ 379
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	$ 407		$ 379
Ending balance collectively evaluated for impairment	407		379
Other Loans [Member]
Total loans	407		379
FUSB [Member]
Beginning balance	1,329	$ 3,486	3,486
Charge-offs	(21)		(852)
Recoveries	40		254
Provision (reduction in reserve) for loan losses	(280)	(525)	(1,559)
Ending balance	1,068		1,329
Ending balance, individually evaluated for impairment	292		310
Ending balance, collectively evaluated for impairment	776		1,019
Total loans	184,737		175,213
Ending balance, individually evaluated for impairment	2,660		2,714
Ending balance, collectively evaluated for impairment	182,077		172,499
Ending balance collectively evaluated for impairment	182,077		172,499
ALC [Member]
Beginning balance	2,452	2,682	2,682
Charge-offs	(770)		(2,739)
Recoveries	178		734
Provision (reduction in reserve) for loan losses	447	359	1,775
Ending balance	$ 2,307		$ 2,452
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	$ 2,307		$ 2,452
Total loans	$ 90,934		$ 93,364
Ending balance, individually evaluated for impairment
Ending balance, collectively evaluated for impairment	$ 90,934		$ 93,364
Ending balance collectively evaluated for impairment	90,934		93,364
FUSB and ALC [Member]
Beginning balance	3,781	6,168	6,168
Charge-offs	(791)		(3,591)
Recoveries	218		988
Provision (reduction in reserve) for loan losses	167		216
Ending balance	3,375		3,781
Ending balance, individually evaluated for impairment	292		310
Ending balance, collectively evaluated for impairment	3,083		3,471
Total loans	275,671		268,577
Ending balance, individually evaluated for impairment	2,660		2,714
Ending balance, collectively evaluated for impairment	273,011		265,863
Ending balance collectively evaluated for impairment	273,011		265,863
Beginning balance	3,781
Provision (reduction in reserve) for loan losses	167	$ (166)
Ending balance	3,375		3,781
Total loans	$ 275,671		$ 268,577

X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 954
-SubTopic 310
-Section 50
-Paragraph 3
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- Definition

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

+ References

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-Publisher FASB
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- Definition

The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

+ References

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- Definition

Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

+ References

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-Publisher FASB
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-Publisher FASB
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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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- 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

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+ References

No definition available.

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