Note 10 - Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

Schedule of Weighted Average Number of Shares [Table Text Block]

(in millions of shares)	Three Months Ended March 31,
	2015		2014
Unvested share-based awards		0.1		0.2
Detachable warrants to purchase common shares		0.7		1.9
Total		0.8		2.1