Note 10 - Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2014

Fair Value Disclosures [Abstract]

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

			Fair Value Measurement Using
	March 31, 2014		Quoted prices in active markets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
Asset Category
Money market accounts	$	80,621	$	80,621	$	-	$	-
Available for sale equity securities		2,264		1,399		865		-
Derivatives		178		-		178		-
Total	$	83,063	$	82,020	$	1,043	$	-
Liability Category
Long term contingent consideration	$	47,800	$	-	$	-	$	47,800

			Fair Value Measurement Using
	December 31, 2013		Quoted prices in active markets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
Asset Category
Money market accounts	$	78,633	$	78,633	$	-	$	-
Available for sale equity securities		2,302		1,470		832		-
Derivatives		163		-		163		-
Total	$	81,098	$	80,103	$	995	$	-
Liability Category
Long term contingent consideration	$	34,800	$	-	$	-	$	34,800

Fair Value Measurements, Nonrecurring [Table Text Block]

	March 31, 2014				December 31, 2013
	Carrying Value		Fair Value		Carrying Value		Fair Value
First lien credit facility, including current portion	$	749,338	$	750,649	$	751,225	$	752,637