Note 11 - Deposits (Details) - Interest Expense on Deposits (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Interest Expense on Deposits [Abstract]
Transaction deposits	$ 41	$ 39	$ 39
Money market deposits	38	32	47
Savings deposits	9us-gaap_InterestExpenseSavingsDeposits	10us-gaap_InterestExpenseSavingsDeposits	9us-gaap_InterestExpenseSavingsDeposits
Time deposits	406us-gaap_InterestExpenseTimeDeposits	2,176us-gaap_InterestExpenseTimeDeposits	5,041us-gaap_InterestExpenseTimeDeposits
Total interest expense on deposits	$ 494us-gaap_InterestExpenseDeposits	$ 2,257us-gaap_InterestExpenseDeposits	$ 5,136us-gaap_InterestExpenseDeposits

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Interest expense incurred on demand deposit accounts that represent borrowings rather than outstanding drafts.

+ References

+ Details

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- Definition

Aggregate amount of interest expense on all deposits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-04.6)

-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 6

-Article 9

+ Details

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- Definition

Interest expense incurred on all money market deposits.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Interest expense incurred on all savings account deposits.

+ References

+ Details

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- Definition

The aggregate interest expense incurred on time deposits, including certificates of deposits, in domestic offices.

+ References

+ Details

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