Quarterly report pursuant to Section 13 or 15(d)

Note 1 - Basis of Presentation and Accounting Policies - Accumulated Other Comprehensive Income (Details)

v3.10.0.1
Note 1 - Basis of Presentation and Accounting Policies - Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Balance     $ 523,166  
$ (2,807) $ 1,620 (634) $ 2,730
Income tax expense (8) (533) (35) (887)
Balance 580,815   580,815  
Other comprehensive loss (2,815) $ 1,087 (669) $ 1,843
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]        
Balance     (13,195)  
    (847)  
Income tax expense      
Balance (14,042)   (14,042)  
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]        
Balance     702  
    246  
Income tax expense     (35)  
Balance 913   913  
AOCI Attributable to Parent [Member]        
Balance     (12,493)  
    (601)  
Income tax expense     (35)  
Balance (13,129)   (13,129)  
Other comprehensive loss     (636)  
Accumulated Foreign Currency Adjustment Attributable to Noncontrolling Interest [Member]        
Balance     (1,357)  
    (26)  
Income tax expense      
Balance (1,383)   (1,383)  
Accumulated Gain (Loss), Net, Cash Flow Hedge, Noncontrolling Interest [Member]        
Balance     1  
    (7)  
Income tax expense      
Balance $ (6)   $ (6)