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Note 2 - Accounting Policies (Details) - Financial Data for Investments in Affiliated Companies (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Financial Data for Investments in Affiliated Companies [Abstract]
Revenue			$ 9,088	$ 75,986
Gross profit			3,489	21,753
Net income			2,413	13,624
Equity in earnings of affiliated companies	$ 0	$ 1,691	$ 677	$ 3,903

The amount of gross profit (loss) reported by an equity method investment of the entity.

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- Definition

The amount of net income (loss) reported by an equity method investment of the entity.

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- Definition

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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