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Note 19 - Financial Instruments (Details) - Fair Value Information of Hedging Instrument (Other Noncurrent Assets [Member], USD $) In Thousands, unless otherwise specified | Dec. 31, 2014
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Other Noncurrent Assets [Member] |
Derivatives, Fair Value [Line Items] |
Interest rate swap asset | $ 27 us-gaap_InterestRateDerivativeAssetsAtFairValue / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherNoncurrentAssetsMember

X
- Details
Name: | us-gaap_DerivativesFairValueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Fair value as of the balance sheet date of interest rate derivative assets, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as assets. + References 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=35750535&loc=d3e13433-108611 + Details
Name: | us-gaap_InterestRateDerivativeAssetsAtFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant