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Note 11 - Fair Value of Financial Instruments (Detail) - Fair Value Measurements, Nonrecurring (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012
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Nonrecurring Assets | $ (6,583)
Goodwill [Member] |
Nonrecurring Assets | $ (6,583)

X
- Definition This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a nonrecurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References No definition available. + Details
Name: | us-gaap_AssetsFairValueDisclosureNonrecurring
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant