Note 11 - Earnings Per Share (Details) - Weighted-Average Stock Options and Warrants Not Included in the Computation of Diluted Shares Outstanding In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average stock options and warrants	8,794	9,944
Shares Issuable Upon Conversion of PDH Non-controlling Interest [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average stock options and warrants	8,775	8,775
Contingently Issuable for the Contingent Consideration [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average stock options and warrants		1,161
Restricted Stock Units (RSUs) [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average stock options and warrants	19	8