Note 9 - Commitments and Contingencies (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Commitments and Contingencies Disclosure [Abstract]
Operating Leases, Rent Expense	$ 12,500,000	$ 9,700,000	$ 8,100,000
Defined Contribution Plan, Cost Recognized	$ 571,000	$ 529,000	$ 297,000