Note 2 - Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2012

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	Six months ended June 30, 2012
Volatility		45.86	–	46.80	%
Expected life (years)			6.00
Risk-free interest rate		1.04	–	1.15	%
Dividend yield			–
Fair value	$	4.23	–	5.47

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

	Number of options			Weighted average exercise price		Weighted average remaining contractual life (years)		Aggregate Intrinsic Value (in thousands)
Outstanding at December 31, 2011		7,371,304		$	12.48
Options granted		2,524,701			9.75
Options forfeited		(328,966	)		16.09
Options exercised		(44,893	)		7.35
Outstanding at June 30, 2012		9,522,146		$	11.66		8.51	$	35,709
Exercisable at June 30, 2012		3,626,119		$	9.39		7.67	$	20,776

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

	Level 1		Level 2		Level 3		Total
As of December 31, 2011
Financial instruments:
Interest rate swap	$	—	$	326	$	—	$	326
Contingent consideration		—		—		1,621		1,621
As of June 30, 2012
Financial instruments:
Interest rate swap	$	—	$	211	$	—	$	211
Contingent consideration		—		—		1,277		1,277