Note 4 - Investment Securities Available for Sale (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Note 4 - Investment Securities Available for Sale (Details) [Line Items]
Available-for-sale Securities Pledged as Collateral	$ 119,000,000	$ 398,000
Cash, FDIC Insured Amount	250,000us-gaap_CashFDICInsuredAmount
Securities Sold under Agreements to Repurchase, Asset	2,100,000	0
Available-for-sale Securities, Amortized Cost Basis	173,282,000	71,295,000
Call Option [Member]
Note 4 - Investment Securities Available for Sale (Details) [Line Items]
Available-for-sale Securities, Amortized Cost Basis	73,100,000	34,400,000
Callable Within One Year [Member]
Note 4 - Investment Securities Available for Sale (Details) [Line Items]
Available-for-sale Securities, Amortized Cost Basis	$ 35,000,000	$ 13,000,000

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This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.2)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The fair value of available-for-sale securities that serve as collateral for borrowings.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5086-111524

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- Definition

The amount of cash deposited in financial institutions as of the balance sheet date that is insured by the Federal Deposit Insurance Corporation.

+ References

No definition available.

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- Definition

Amount of asset associated with funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 20

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=36459792&loc=SL20226003-175313

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 20

-Section 50

-Paragraph 3

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=34720828&loc=SL20225862-175312

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