Note 15 - Share-Based and Other Compensation Plans (Non-Qualified Stock Options) (Details) (Equity Compensation Plan, 1995 and 2008 [Member], Stock Options [Member], USD $)	12 Months Ended
	Dec. 31, 2013 days		Dec. 31, 2012		Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding, Beginning of Period, Number of Shares	4,402,344
Outstanding, Beginning of Period, Weighted Average Exercise Price Per Share	$ 15.82
Granted, Number of Shares	279,650
Granted, Weighted Average Exercise Price Per Share	$ 13.99
Exercised, Number of Shares	(25,100)		0		0
Exercised, Weighted Average Exercise Price Per Share	$ 2.48
Forfeited, Number of Shares	(17,054)
Forfeited, Weighted Average Exercise Price Per Share	$ 4.46
Expired, Number of Shares	(650,199)
Expired, Weighted Average Exercise Price Per Share	$ 47.71
Outstanding, End of Period, Number of Shares	3,989,641		4,402,344
Outstanding, End of Period, Weighted Average Exercise Price Per Share	$ 10.63		$ 15.82
Exercisable, Number of Shares	1,699,608
Exercisable, Weighted Average Exercise Price Per Share	$ 18.72
Available for grant	123,859
Weighted average fair value per share of stock options granted	$ 10.95		$ 1.92		$ 3.33
Employee Service Share-based Compensation, Cash Received from Exercise of Stock Options	$ 60,000
Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options	60,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	200,000
Total intrinsic value of options outstanding	27,000,000		7,800,000		0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest [Abstract]
Fair value of options vested during the year	900,000
Aggregate intrinsic value (excess market price over exercise price)	5,300,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Remaining Contractual Term	1 year 0 months 5 days
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Risk-free interest rate	1.96%	[1]	1.66%	[1]	1.88%	[1]
Volatility	94.63%	[2]	96.97%	[2]	114.51%	[2]
Dividend yield	0.07%		0.41%		0.28%
Number of Consecutive Trading Days For Current Year Options Granted Vesting Requirement	10
Share-based Compensation Arrangements, Windfall Tax Benefit, Threshold Amount	$ 15,300,000
Expected Life [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Expected life (years)					6 years	[3]
Maximum [Member] | Derived Service Period [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Expected life (years)	4 years	[4]	4 years	[5]
Minimum [Member] | Derived Service Period [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Expected life (years)	3 years 0 months 7 days	[4]	3 years 1 month 21 days	[5]
2013 Award Year [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options Granted in Period, Closing Price of Common Stock Vesting Criteria	$ 17.49
Share-based Compensation Arrangement by Share-based Payment Award, Options Granted in Period, Percent of Increase Over Granted Price for Additional Vesting Criteria	125.00%
2012 Award Year [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options Granted in Period, Closing Price of Common Stock Vesting Criteria	$ 4.90
Share-based Compensation Arrangement by Share-based Payment Award, Options Granted in Period, Percent of Increase Over Granted Price for Additional Vesting Criteria	200.00%
2011 Award Year [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options Granted in Period, Closing Price of Common Stock Vesting Criteria	$ 4.48
Share-based Compensation Arrangement by Share-based Payment Award, Options Granted in Period, Percent of Increase Over Granted Price for Additional Vesting Criteria	125.00%

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

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

[3] In 2011, 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.

[4] In 2013, we used a Monte Carlo valuation, which assumes a derived service period of between 3.02 years and 4 years instead of an expected life assumption.

[5] In 2012, we used a Monte Carlo valuation, which assumes a derived service period of between 3.14 years and 4 years instead of an expected life assumption.