Note 16 - Share-Based and Other Compensation Plans (Non-Qualified Stock Options) (Details) (2008 Equity Plan [Member], USD $)	12 Months Ended
	Dec. 31, 2011 years		Dec. 31, 2010 years		Dec. 31, 2009
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Available for grant	3,271,288
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Vesting Percentage of Total Award, Third Anniversary	50.00%
Share-based Compensation Arrangement by Share-based Payment Award, Vesting Percentage of Total Award, Fourth Anniversary	50.00%
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding, Beginning of Period, Number of Shares	3,227,411
Outstanding, Beginning of Period, Weighted Average Exercise Price Per Share	$ 28.63
Granted, Number of Shares	667,586				0
Granted, Weighted Average Exercise Price Per Share	$ 4.05
Exercised, Number of Shares	0				0
Exercised, Weighted Average Exercise Price Per Share	$ 0.00
Forfeited, Number of Shares	(77,347)
Forfeited, Weighted Average Exercise Price Per Share	$ 6.17
Expired, Number of Shares	(344,888)
Expired, Weighted Average Exercise Price Per Share	$ 33.00
Outstanding, End of Period, Number of Shares	3,472,762		3,227,411
Outstanding, Beginning of Period, Weighted Average Exercise Price Per Share	$ 23.97		$ 28.63
Exercisable, Number of Shares	2,410,123
Exercisable, Weighted Average Exercise Price Per Share	$ 32.33
Available for grant	3,271,288
Weighted average fair value per share of stock options granted	$ 3.33		$ 8.70
Total intrinsic value of options outstanding	$ 0		$ 2,500,000		$ 2,200,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest [Abstract]
Number of options vested	2,410,123
Fair value of options vested during the year	300,000
Aggregate intrinsic value (excess market price over exercise price)	0
Weighted-average remaining contractual term of options (in years)	2
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Expected life (years)	6.00	[1]	6.00	[1]
Risk-free interest rate	1.88%	[2]	2.85%	[2]
Volatility	114.51%	[3]	110.83%	[3]
Dividend yield	0.28%		0.10%
Vesting period (in years)	4 years
Share-based Compensation Arragements, Windfall Tax Benefit, Threshold Amount	$ 20,200,000

[1] In 2011 and 2010, the expected life of stock options granted was estimated to be less than the full term of the options awarded. The expected life is estimated using historical data.

[2] The risk-free interest rate is based on the U.S. treasury yield curve in effect at the time of grant.

[3] Volatility determined at the date of grant using historical share price volatility and expected life of each award.