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Note 16 - Acquisitions (Detail) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended
	Feb. 21, 2008	Dec. 31, 2011
Business Acquisition, Percentage of Voting Interests Acquired		30.00%
Stock Issued During Period, Shares, Acquisitions (in Shares)	5,395,683
Stock Issued During Period, Value, Acquisitions (in Dollars)	$ 33.8

Number of shares of stock issued during the period pursuant to acquisitions.

Value of stock issued pursuant to acquisitions during the period.