Note 9 - Equity-based Compensation (Tables)

3 Months Ended

Mar. 31, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Share Based Payment Award Restricted Stock Weighted Average Assumptions [Table Text Block]

	Three months ended March 31, 2016		Three months ended March 31, 2015
Volatility (1)		46.02%		49.04%
Risk-free interest rate (1)		2.29%		1.96%
Dividend yield (1)		0%		0%
Pre-vest cancellation rate		3.43%		3.62%
Post-vest cancellation rate (1)		3.44%		3.86%
Suboptimal exercise factor (1)		1.69		1.46

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

	Number of Options/SARs/R SUs			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (years) (3)		Aggregate Value (*)
	in thousands							in thousands
Outstanding at December 31, 2015		3,740		$	6.22
Options granted		64			9.44
RSUs granted		502			-
Options / SARs / RSUs cancelled/forfeited/expired		(75	)		9.95
Options / SARs exercised and RSUs vested		(330	)	$	3.03
Outstanding at March 31, 2016 (1)		3,901		$	5.67		3.34	$	14,447
Exercisable at March 31, 2016 (2)		2,619		$	7.43		2.98	$	5,194

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

	Exercisable				Unexercisable				Total
Exercise Prices	Number of Options/ SARs / RSUs (in thousands)		Weighted Average Exercise Price		Number of Options/ SARs / RSUs (in thousands)		Weighted Average Exercise Price		Number of Options/ SARs / RSUs (in thousands)		Weighted Average Exercise Price
Above $9.12		267	$	12.02		170	$	10.45		437	$	11.41
Less than $9.12		2,352	$	6.91		1,112	$	0.80		3,464	$	4.95
Total		2,619	$	7.43		1,282	$	2.08		3,901	$	5.67