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Note 5 - Derivative Instruments and Hedging Activities (Tables)
3 Months Ended
Mar. 31, 2021
Notes Tables  
Schedule of Derivative Instruments [Table Text Block]
Maturity date (Dollar amounts in thousands of U.S. dollars) Notional amount of U.S. dollars  Weighted average exchange rate of U.S. dollars  Fair value Asset / (Liability) 
             
April - June 2021  9,878   1.4283   1,352 
July - September 2021  10,781   1.4362   1,541 
  $20,659   1.4324  $2,893 
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]
Derivatives (Dollar amounts in thousands of U.S. dollars) Balance Sheet Location As of March 31, 2021 Fair Value Asset (Liability)  As of December 31, 2020 Fair Value Asset (Liability) 
Foreign Currency forward contracts designated as cash flow hedges (net) Derivative instruments $2,454  $3,254 
Interest rate swap contract designated as a cash flow hedge (net) Derivative instruments  (18) $(213)
Foreign Currency forward contracts not designated as cash flow hedges (net) Derivative instruments  439   606 
Total foreign currency and interest swap forward contracts (net) Derivative instruments $2,875  $3,647 
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
  

Gains and losses on cash flow hedges

  

Tax impact

  

Total AOCI

 

Opening AOCI balance - December 31, 2020

 $3,038  $(702) $2,336 

Other comprehensive income (loss) before reclassifications

  480   (112)  368 

Amount reclassified from AOCI

  (1,086)  252   (834)

Other comprehensive income (loss) for the three months ended March 31, 2021

  (606)  140   (466)
             

Ending AOCI Balance - March 31, 2021

 $2,432  $(562) $1,870 
Derivative Instruments, Gain (Loss) [Table Text Block]
Derivatives in Cash Flow Hedging Relationship Amount of Gain or (Loss) Recognized in OCI, net of tax, on Derivative Location of Gain or (Loss) Reclassified from AOCI into Income Amount of Gain or (Loss) Reclassified from AOCI into Income 
     Operating expenses $949 
Foreign currency forward contracts for the three months ended March 31, 2021 $(615)Cost of revenues $156 
          
Interest rate swap contract for the three months ended March 31, 2021 $149 Interest expense, net $(19)
          
     Operating expenses $(45)
Foreign currency forward contracts for the three months ended March 31, 2020 $(1,191)Cost of revenues $(13)
          
Interest rate swap contract for the three months ended March 31, 2020 $- Interest expense, net $- 
Derivatives Not Designated as Hedging Instruments [Table Text Block]
  

Three Months Ended March 31,

 

Forward currency contracts not designated as hedges:

 

2021

  

2020

 
         

Gain (loss) on settlement

 $420  $(93)
         

Gain (loss) on change in fair value

 $(167) $(348)