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Note 2 - Other Assets (Details) (USD $)	9 Months Ended				9 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Sep. 30, 2013 Franchise Rights [Member]	Sep. 30, 2013 Sales Revenue, Services, Net [Member]	Sep. 30, 2013 Computer Software, Intangible Asset [Member]	Sep. 30, 2012 Computer Software, Intangible Asset [Member]	Sep. 30, 2013 Computer Software, Intangible Asset [Member]	Sep. 30, 2012 Computer Software, Intangible Asset [Member]
Note 2 - Other Assets (Details) [Line Items]
Other Assets, Noncurrent	$ 50,555,000		$ 48,510,000	$ 4,500,000		$ 40,400,000		$ 40,400,000
Finite-Lived Intangible Assets, Accumulated Amortization						6,300,000		6,300,000
Finite-Lived Intangible Asset, Useful Life								15 years
Concentration Risk, Percentage					44.00%
Depreciation, Depletion and Amortization	$ 67,815,000	$ 53,196,000				$ 700,000	$ 700,000	$ 2,200,000	$ 2,200,000

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

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The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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-Publisher FASB

-Name Accounting Standards Codification

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-Section 45

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Aggregate carrying amount, as of the balance sheet date, of noncurrent assets not separately disclosed in the balance sheet. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer).

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