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Note 15 - Accumulated Other Comprehensive Loss
 6 Months Ended
Jun. 30, 2020
Notes to Financial Statements  
Comprehensive Income (Loss) Note [Text Block]
15.
ACCUMULATED OTHER COMPREHENSIVE LOSS
 
The components of accumulated other comprehensive loss are as follows:
 
(in thousands)
  
As of June 30, 2020
    
As of December 31, 2019
  
Foreign currency translation adjustment
   $
(4,000
 )   $
(4,371
 )
Accumulated other comprehensive loss
   $
(4,000
 )   $
(4,371
 )