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Note 5 - Income Taxes (Details) - Domestic and Foreign Components of Income (Loss) from Operations Before Income Taxes - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Note 5 - Income Taxes (Details) - Domestic and Foreign Components of Income (Loss) from Operations Before Income Taxes [Line Items] |  |  |
Income (loss) from continuing operations | $ (30,658) | $ 12,584 | $ (34,925)
Domestic Tax Authority [Member] |  |  |
Note 5 - Income Taxes (Details) - Domestic and Foreign Components of Income (Loss) from Operations Before Income Taxes [Line Items] |  |  |
Income (loss) from continuing operations | (65,895) | (1,505) | (1,681)
Foreign Tax Authority [Member] |  |  |
Note 5 - Income Taxes (Details) - Domestic and Foreign Components of Income (Loss) from Operations Before Income Taxes [Line Items] |  |  |
Income (loss) from continuing operations | $ 35,237 | $ 14,089 | $ (33,244)

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- Definition Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(1)(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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