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Note 13 - Income Taxes (Details) - Components of Income Taxes Related to Other Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income tax expense (benefit) related to components of other comprehensive income:
Change in fair value of cash flow swaps	$ 338	$ 133	$ (728)
Change in fair value of available-for-sale securities		(9)	(360)
Total	338	124	(1,088)
Paid in capital – stock based compensation	$ (2,566)	$ (1,668)	$ (1,993)

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Amount of deferred tax expense from write-off of the deferred tax asset related to deductible stock options at exercise.

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Amount of tax expense (benefit) allocated to other comprehensive income (loss) attributable to parent entity.

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Amount of tax expense (benefit), before reclassification adjustments, related to increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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Amount of tax expense (benefit) before reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities.

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