Note 9 - Fair Value Measurements (Details) - Financial Instruments, Assets and Liabilities Measured at Fair Value (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Asset Category
Money market accounts	$ 57,811	$ 78,633
Available for sale equity securities	2,350	2,302
Derivatives	4,200	163
Total	64,361	81,098
Liability Category
Long term contingent consideration	60,900	34,800
Derivatives	6,827
Total	67,727
Fair Value, Inputs, Level 1 [Member]
Asset Category
Money market accounts	57,811	78,633
Available for sale equity securities	1,489	1,470
Total	59,300	80,103
Fair Value, Inputs, Level 2 [Member]
Asset Category
Available for sale equity securities	861	832
Derivatives	4,200	163
Total	5,061	995
Liability Category
Derivatives	6,827
Total	6,827
Fair Value, Inputs, Level 3 [Member]
Liability Category
Long term contingent consideration	60,900	34,800
Total	$ 60,900