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Note 10 - Segment Information (Tables)
6 Months Ended
Jun. 30, 2020
Notes Tables  
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]
  

June 30, 2020

  

December 31, 2019

 
  

(In thousands)

 

Long-lived assets:

        

United States

 $77,621  $78,906 

Canada

  2,463   2,622 

Total

 $80,084  $81,528 

Total assets:

        

United States

 $101,134  $95,668 

Canada

  15,647   15,017 

Total

 $116,781  $110,685