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Note 6 - Intangible Assets - Acquired Intangible Assets (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($)
Amount	$ 54,438
Finite-Lived Intangible Asset, Useful Life	15 years 109 days
Customer Lists and Relationships [Member]
Amount	$ 32,322
Finite-Lived Intangible Asset, Useful Life	17 years 292 days
Franchise Rights [Member]
Amount	$ 2,449
Finite-Lived Intangible Asset, Useful Life	5 years 73 days
Trademarks and Trade Names [Member]
Amount	$ 4,615
Finite-Lived Intangible Asset, Useful Life	5 years 182 days
Other Intangible Assets [Member]
Amount	$ 15,052
Finite-Lived Intangible Asset, Useful Life	14 years 292 days

X

- Definition

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.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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X

- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

+ References

No definition available.

+ Details

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X

- Details

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- Details

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- Details

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- Details

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