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Note 13 - Redeemable Non-controlling Interests (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Redeemable Noncontrolling Interest, Equity, Carrying Amount	$ 134,803	$ 139,592
Subordinate Non-controlling Interest Shares	3,400,000
Income (Loss) from Continuing Operations, Per Diluted Share	$ 1.75	$ 0.59	$ 0.54
Pro Forma [Member]
Income (Loss) from Continuing Operations, Per Diluted Share	$ 0.32
Redemption Amount [Member]
Redeemable Noncontrolling Interest, Equity, Carrying Amount	$ 126,007	$ 137,357

The amount of net income (loss) derived from continuing operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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