Note 9 - Commitments and Contingencies (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Commitments and Contingencies Disclosure [Abstract]
Operating Leases, Rent Expense	$ 3,700,000	$ 3,100,000	$ 7,100,000	$ 6,100,000
Defined Contribution Plan, Cost Recognized	$ 234,000	$ 138,000	$ 462,000	$ 277,000