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Note 16 - Income Tax (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Note 16 - Income Tax (Details) [Line Items]      
Deferred Tax Assets, Net $ 81,080 $ 84,054  
Undistributed Earnings of Foreign Subsidiaries 21,642    
Unrecognized Tax Benefits 2,519 3,624 $ 3,687
Unrecognized Tax Benefits that Would Impact Effective Tax Rate 2,519 3,624  
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued 174 $ 106  
Recovery Of Income Tax Interest And Penalties 106    
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit (971)    
Spinoff [Member]      
Note 16 - Income Tax (Details) [Line Items]      
One-Time Stock-Based Compensation and Transaction Costs $ 49,465    
Foreign Tax Authority [Member] | Other Foreign Tax Authorities [Member]      
Note 16 - Income Tax (Details) [Line Items]      
Income Tax Return Examination Period 4 years    
Minimum [Member] | Domestic Tax Authority [Member] | Canada Revenue Agency [Member]      
Note 16 - Income Tax (Details) [Line Items]      
Income Tax Return Examination Period 4 years    
Minimum [Member] | Foreign Tax Authority [Member] | Internal Revenue Service (IRS) [Member]      
Note 16 - Income Tax (Details) [Line Items]      
Income Tax Return Examination Period 3 years    
Maximum [Member] | Domestic Tax Authority [Member] | Canada Revenue Agency [Member]      
Note 16 - Income Tax (Details) [Line Items]      
Income Tax Return Examination Period 7 years    
Maximum [Member] | Foreign Tax Authority [Member] | Internal Revenue Service (IRS) [Member]      
Note 16 - Income Tax (Details) [Line Items]      
Income Tax Return Examination Period 5 years