Note 4 - Fair Value Measurements (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2015	Jun. 30, 2015	Dec. 31, 2014
Note 4 - Fair Value Measurements (Details) [Line Items]
Business Combination, Contingent Consideration, Liability			$ 10,549
Payments for Merger Related Costs	$ 7,496	$ 7,496
Other Noncurrent Liabilities [Member]
Note 4 - Fair Value Measurements (Details) [Line Items]
Business Combination, Contingent Consideration, Liability		$ 2,611	2,782
Accrued Expenses [Member]
Note 4 - Fair Value Measurements (Details) [Line Items]
Business Combination, Contingent Consideration, Liability			$ 7,767