Note 7 - Loans and Related Allowance for Loan and Lease Losses (Details) - Allowance for Loan Losses (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Allowance for loan and lease losses:
Individually evaluated for impairment	$ 998		$ 1,596
Collectively evaluated for impairment	5,449		5,250
Balance	6,447	7,015
Beginning balance	6,846	7,046
Charge-offs	(679)	(350)
Recoveries	175	139
Provision	105us-gaap_ProvisionForLoanAndLeaseLosses	180us-gaap_ProvisionForLoanAndLeaseLosses
Ending balance	6,447	7,015
Commercial and Industrial [Member]
Allowance for loan and lease losses:
Individually evaluated for impairment	65		83
Collectively evaluated for impairment	428		559
Balance	493	867
Beginning balance	642	614
Charge-offs	(100)	(12)
Recoveries	162	1
Provision	(211)	264
Ending balance	493	867
Real Estate Construction [Member]
Allowance for loan and lease losses:
Individually evaluated for impairment	181		589
Collectively evaluated for impairment	313		279
Balance	494	488
Beginning balance	868	576
Charge-offs	(385)	0
Recoveries	0	0
Provision	11	(88)
Ending balance	494	488
Residential Real Estate Mortgage [Member]
Allowance for loan and lease losses:
Individually evaluated for impairment	550		892
Collectively evaluated for impairment	2,909		2,811
Balance	3,459	3,726
Beginning balance	3,703	3,664
Charge-offs	(191)	(315)
Recoveries	12	136
Provision	(65)	241
Ending balance	3,459	3,726
Commercial Real Estate Mortgage [Member]
Allowance for loan and lease losses:
Individually evaluated for impairment	200		30
Collectively evaluated for impairment	1,758		1,546
Balance	1,958	1,862
Beginning balance	1,576	2,170
Charge-offs	0	0
Recoveries	0	0
Provision	382	(308)
Ending balance	1,958	1,862
Consumer Installment [Member]
Allowance for loan and lease losses:
Individually evaluated for impairment	2		2
Collectively evaluated for impairment	41		55
Balance	43	72
Beginning balance	57	22
Charge-offs	(3)	(23)
Recoveries	1	2
Provision	(12)	71
Ending balance	$ 43	$ 72

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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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

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

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

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-Publisher FASB

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

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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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Amount of expense related to estimated loss from loan and lease transactions.

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