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Note 13 - Earnings Per Share (Details Textual) - $ / shares
shares in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Weighted Average Securities Used In Computations Of Basic And Diluted Earnings Per Share [Line Items]        
Weighted Average Number of Shares Outstanding, Basic 42.2 41.9 42.2 41.9
Weighted Average Number of Shares Outstanding, Basic and Diluted   41.9   41.9
Weighted Average Number of Shares Outstanding, Diluted 42.6 41.9 42.4 41.9
Non-dilutive unvested restricted stock units excluded from Computation of Earnings Per Share   0.2   0.2
Non-dilutive warrants to purchase common shares excluded from Computation of Earnings Per Share   0.7   0.7
Unvested Restricted Stock [Member]        
Weighted Average Securities Used In Computations Of Basic And Diluted Earnings Per Share [Line Items]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 0.4   0.2  
Warrant with Exercise Price of $14.93 [Member]        
Weighted Average Securities Used In Computations Of Basic And Diluted Earnings Per Share [Line Items]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 1.8   1.8  
Share Price $ 14.93   $ 14.93  
Warrant with Exercise Price of $16.12 [Member]        
Weighted Average Securities Used In Computations Of Basic And Diluted Earnings Per Share [Line Items]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 1.8   1.8  
Share Price $ 16.12   $ 16.12  
Outstanding Stock Options [Member]        
Weighted Average Securities Used In Computations Of Basic And Diluted Earnings Per Share [Line Items]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 1.7 1.1 1.7 1.1