Note 9 - Commitments and Contingencies (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Commitments and Contingencies Disclosure [Abstract]
Operating Leases, Rent Expense	$ 3,900,000	$ 3,100,000	$ 11,100,000	$ 9,200,000
Defined Contribution Plan, Cost Recognized	$ 230,000	$ 144,000	$ 691,000	$ 421,000