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Note 14 - Summary of Changes in Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Unrecognized tax benefits, beginning of year	$ 2,313	$ 6,207	$ 5,245
Decreases for settlements		(3,265)
Decreases for lapse in statute of limitations	$ (1,199)	(115)
Decreases for positions taken in current year		(615)
Increases for positions taken in prior years	$ 3,716	$ 101	$ 646
Decreases for positions taken in prior years			(696)
Increases for positions taken in the current year	$ 44		1,012
Unrecognized tax benefits, end of year	$ 4,874	$ 2,313	$ 6,207

X

- Definition

Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Unrecognized Tax Benefit
-URI http://asc.fasb.org/extlink&oid=6527854

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- Definition

Amount of decrease in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

+ References

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

+ References

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+ References

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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