Note 2 - Business Combinations (Details) (USD $) In Thousands, unless otherwise specified				1 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014 Mostra and CityTech [Member]	Feb. 28, 2014 Mostra [Member]	Mar. 31, 2014 CityTech [Member]	Jul. 31, 2013 ECA [Member]
Note 2 - Business Combinations (Details) [Line Items]
Goodwill	$ 464,285	$ 418,839	$ 45,400
Business Acquisition, Effective Date of Acquisition				Feb. 28, 2014	Mar. 31, 2014	Jul. 31, 2013