Note 10 - Long-Term Debt Interest Expense Recognized Related to Convertible Debt (Details) (Two Point Two Five Percent Convertible Notes Due 2019 [Member], Convertible Debt [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013
Two Point Two Five Percent Convertible Notes Due 2019 [Member] | Convertible Debt [Member]
Schedule of Interest Expense Recognized Related to Convertible Debt [Line Items]
Interest Expense, Debt, Excluding Amortization	$ 2,250	$ 5,175
Amortization of Financing Costs	311	711
Amortization of Debt Discount	2,801	6,378
Debt Instrument, Convertible, Interest Expense	$ 5,362	$ 12,264
Debt Instrument, Interest Rate, Effective Percentage	6.25%	6.25%