Note 9 - Earnings Per Share (Details) - Reconciliation of Earnings Per Share Data (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Note 9 - Earnings Per Share (Details) - Reconciliation of Earnings Per Share Data [Line Items]
Income (loss) from continuing operations (in Dollars)	$ (11,650)	[1]	$ 12,205		$ 7,187		$ 35,684
Income (loss) from continuing operations per share:
Basic (in Dollars per share)	$ (0.11)	[1]	$ 0.13		$ 0.07		$ 0.37
Diluted (in Dollars per share)	$ (0.11)	[1]	$ 0.11		$ 0.06		$ 0.32
(Loss) from discontinued operations, net of tax (in Dollars)		[1]			$ (503)
(Loss) from discontinued operations per share:
Basic (in Dollars per share)		[1]
Diluted (in Dollars per share)		[1]
Weighted average basic shares outstanding	105,438	[1]	96,238		101,784		96,096
Dilutive securities:
Stock option and unvested RSAs		[1]	4,510		4,748		4,408
Stock warrants		[1]	6,687		2,505		6,635
Shares issuable upon conversion of convertible notes (2)		[1],[2]	6,282	[2]	9,498	[2]	5,505	[2]
Total dilutive securities		[1]	17,479		16,751		16,548
Weighted average diluted shares outstanding	105,438	[1]	113,717		118,535		112,644
2003 Stock Option Plan [Member]
Dilutive securities:
Shares subject to stock options omitted from the calculation of income per share as their effect would have been anti-dilutive		[1]	1,110		740		1,335

[1] As a result of the loss from continuing operations in the three months ended September 30, 2014, the effect of potentially dilutive securities would be anti-dilutive and have been omitted from the calculation of diluted earnings per share consistent with U.S. GAAP.

[2] The number of shares issuable upon conversion of the Notes is based on the assumption that the Company would repay the principal of the Notes in cash and pay any incremental value in shares of common stock.