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

September 30,

2020

  

December 31,

2019

 
  

(In thousands)

 

Long-lived assets:

        

United States

 $77,381  $78,906 

Canada

  2,499   2,622 

Total

 $79,880  $81,528 

Total assets:

        

United States

 $118,536  $95,668 

Canada

  8,710   15,017 

Total

 $127,246  $110,685