Note 11 - Stock Based Compensation and Other Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2012

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

	Shares			Weighted-Average Exercise Price		Weighted- Average Remaining Contractual Life (Years)		Aggregate Intrinsic Value
Outstanding at beginning of period		3,621,013		$	6.21
Granted		1,438,158			5.57
Exercised		(286,457	)		3.70
Expired or cancelled		(292,688	)		6.72
Outstanding at end of period		4,480,026		$	6.13		6.63	$	8,560,159
Vested or expected to vest at end of period		4,365,298		$	6.14		6.56	$	8,321,556
Options exercisable at end of period		2,281,385		$	6.44		4.64	$	3,582,813

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

	Year Ended December 31,
	2012			2011			2010
Risk-free interest rate		0.68	%		1.59	%		1.99	%
Expected life of the option in years		5.22			5.22			5.22
Expected volatility		60.3	%		63.1	%		62.5	%
Dividend yield		-			-			-

Share-Based Compensation Arrangement, By Share Based Payment Award, Options Grants In Period, Weighted Average Exercise Price And Grant Date Fair Value [Table Text Block]

	Year Ended December 31,
	2012		2011		2010
Weighted-average exercise price of the stock on the date of grant	$	5.57	$	9.13	$	5.61
Weighted-average grant date fair value on the date of grant	$	2.89	$	5.00	$	3.08

Schedule of Share-based Compensation, Stock Appreciation Rights Award Activity [Table Text Block]

	Rights
Outstanding at the beginning of the period		312,666
Exercised		(41,100	)
Outstanding at the end of the period		271,566
Exercisable at end of period		271,566

Schedule of Nonvested Performance-based Units Activity [Table Text Block]

Nonvested Shares (Performance-Based)	Shares			Weighted-Average Grant Date Fair Value
Outstanding at beginning of the period		381,230		$	3.31
Forfeited		(381,230	)		3.31
Outstanding at the end of the period		-

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

Nonvested Shares (Time-Vesting)	Shares			Weighted-Average Grant Date Fair Value
Nonvested at January 1, 2012		1,165,729		$	7.93
Granted		997,709			5.86
Vested		(414,624	)		7.44
Forfeited		(61,833	)		7.26
Nonvested at December 31, 2012		1,686,981		$	6.85

Nonvested Share Units (Time-Vesting)	Shares			Weighted-Average Grant Date Fair Value
Nonvested at January 1, 2012		57,916		$	9.13
Granted		93,134			5.60
Vested		(19,309	)		5.69
Forfeited		-			-
Nonvested at December 31, 2012		131,741		$	7.14