Note 15 - Share-Based and Other Compensation Plans (Non-Qualified Stock Options - Range of Exercise Prices) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013
Equity Compensation Plan, 1995 and 2008 [Member] | Stock Options [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number Outstanding	3,989,641
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	2 years 8 months 24 days
Options Exercisable, Number Exercisable	1,699,608
Equity Compensation Plan, 1995 and 2008 [Member] | $2.45 - $3.58 [Member] | Stock Options [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number Outstanding	2,250,190
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	6 years 2 months 12 days
Options Outstanding, Weighted Average Exercise Price	$ 2.73
Options Exercisable, Number Exercisable	419,700
Options Exercisable, Weighted Average Exercise Price	$ 2.48
Equity Compensation Plan, 1995 and 2008 [Member] | $5.76 - $7.06 [Member] | Stock Options [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number Outstanding	75,143
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	4 years 2 months 5 days
Options Outstanding, Weighted Average Exercise Price	$ 6.88
Options Exercisable, Number Exercisable	0
Options Exercisable, Weighted Average Exercise Price	$ 0
Equity Compensation Plan, 1995 and 2008 [Member] | $10.42 - $13.99 [Member] | Stock Options [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number Outstanding	491,450
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	6 years 9 months 0 days
Options Outstanding, Weighted Average Exercise Price	$ 12.43
Options Exercisable, Number Exercisable	107,050
Options Exercisable, Weighted Average Exercise Price	$ 10.42
Equity Compensation Plan, 1995 and 2008 [Member] | $20.34 [Member] | Stock Options [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number Outstanding	946,400
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	8 months 12 days
Options Outstanding, Weighted Average Exercise Price	$ 20.34
Options Exercisable, Number Exercisable	946,400
Options Exercisable, Weighted Average Exercise Price	$ 20.34
Equity Compensation Plan, 1995 and 2008 [Member] | $45.95 [Member] | Stock Options [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number Outstanding	226,458
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	0 years 1 month 9 days
Options Outstanding, Weighted Average Exercise Price	$ 45.95
Options Exercisable, Number Exercisable	226,458
Options Exercisable, Weighted Average Exercise Price	$ 45.95
Equity Compensation Plan, 1995 and 2008 [Member] | $2.45 - $3.58 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Range Limit	$ 2.45
Range of Exercise Prices, Upper Range Limit	$ 3.58
Equity Compensation Plan, 1995 and 2008 [Member] | $5.76 - $7.06 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Range Limit	$ 5.76
Range of Exercise Prices, Upper Range Limit	$ 7.06
Equity Compensation Plan, 1995 and 2008 [Member] | $10.42 - $13.99 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Range Limit	$ 10.42
Range of Exercise Prices, Upper Range Limit	$ 13.99
Equity Compensation Plan, 1995 and 2008 [Member] | $20.34 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Range Limit	$ 20.34
Range of Exercise Prices, Upper Range Limit	$ 20.34
Equity Compensation Plan, 1995 and 2008 [Member] | $45.95 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Range Limit	$ 45.95
Range of Exercise Prices, Upper Range Limit	$ 45.95
2013 Award Year [Member] | Equity Compensation Plan, 1995 and 2008 [Member] | Stock Options [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
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] | Equity Compensation Plan, 1995 and 2008 [Member] | Stock Options [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
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] | Equity Compensation Plan, 1995 and 2008 [Member] | Stock Options [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
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%