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Note 6 - Changes in Accumulated Other Comprehensive Income (Loss) by Component (Details) - Changes in the Balances of Each Component of Accumulated Other Comprehensive Income, Net of Tax (USD $) In Thousands, unless otherwise specified			9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ (73)	$ 117	$ 117	[1]
Other comprehensive loss before reclassification			(175)	[1]
Amounts reclassified from accumulated other comprehensive income (loss)			(15)	[1]
Net current-period other comprehensive loss			(190)	[1]
Ending Balance	$ (73)	$ 117	$ (73)	[1]
[1] Amounts in parentheses represent reductions to accumulated other comprehensive income (loss).

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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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Amount after tax, before reclassification adjustments of other comprehensive income (loss).

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