Note 15 - Commitments and Contingencies (Details) - Interest Rate Swaps (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Interest Rate Swap, Pay Fixed / Receive Variable Swaps [Member]
Derivative [Line Items]
Notional Amount	$ (2,812)
Estimated Fair Value	(67)
Interest Rate Swap, Pay Variable / Receive Fixed Swaps [Member]
Derivative [Line Items]
Notional Amount	2,812
Estimated Fair Value	$ 67

Fair value as of the balance sheet date of interest rate derivative assets, net of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized on the balance sheet.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13433-108611

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 15

-URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13495-108611

Name:	us-gaap_InterestRateDerivativesAtFairValueNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant