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Note 2 - Summary of Significant Accounting Policies (Tables)
9 Months Ended
Sep. 30, 2016
Notes Tables  
Comprehensive Income (Loss) [Table Text Block]
 
 
Three Months Ended
September 30,
 
 
Nine Months
Ended
September 30,
 
 
 
2016
 
 
2015
 
 
2016
 
 
2015
 
Foreign currency translation adjustments
  $ (165
)
  $ (3,900
)
  $ (3,108
)
  $ (5,155
)
Realized losses reclassified into earnings
(1)
                      666  
Other comprehensive (loss) income, net of tax
(2)
  $ (165
)
  $ (3,900
)
  $ (3,108
)
  $ (4,489
)
New Accounting Pronouncement, Early Adoption [Table Text Block]
 
 
Three Months Ended
March 31, 2016
 
 
 
As reported
 
 
As adjusted
 
Statement
of Comprehensive Income
 
 
 
 
 
 
 
 
Provision for income taxes
  $ 5,837     $ 5,633  
Net income
  $ 9,687     $ 9,891  
Comprehensive income, net of tax
  $ 8,770     $ 8,974  
Basic earnings per share
  $ 0.51     $ 0.52  
Diluted earnings per share
  $ 0.50     $ 0.51  
Diluted weighted average shares outstanding
    19,293       19,273  
                 
Statement of Cash Flows
 
 
 
 
 
 
 
 
Net cash used in operating activities
  $ (13,581
)
  $ (13,377
)
Net cash provided by financing activities
  $ 18,928     $ 18,724