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Note 8 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners’ Interests (Details) - Changes in Noncontrolling Owners’ Interests in Subsidiaries and Consolidated Joint Ventures - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Note 8 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners’ Interests (Details) - Changes in Noncontrolling Owners’ Interests in Subsidiaries and Consolidated Joint Ventures [Line Items]
Distributions to noncontrolling interest owners	$ (2,451)
Subsidiaries [Member]
Note 8 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners’ Interests (Details) - Changes in Noncontrolling Owners’ Interests in Subsidiaries and Consolidated Joint Ventures [Line Items]
Balance, beginning of period	7,462	$ 4,097
Net income attributable to noncontrolling interest included in equity	1,839	1,520
Distributions to noncontrolling interest owners	(2,451)	(1,190)
Balance, end of period	$ 6,850	$ 4,427

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders.

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Carrying amount of the equity interests owned by noncontrolling shareholders, partners, or other equity holders in joint ventures included in the entity's consolidated financial statements.

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