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Note 13 - Segment Information (Tables)
12 Months Ended
Dec. 31, 2021
Notes Tables  
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]
  

2021

  

2020

  

2019

 

Revenue:

            

United States

 $144,987  $130,305  $124,369 

Canada

  2,967   2,972   3,613 

Total

 $147,954  $133,277  $127,982 

Long-lived assets:

            

United States

 $83,722  $77,448  $78,906 

Canada

  111   1,863   2,622 

Total

 $83,833  $79,311  $81,528 

Total assets:

            

United States

 $153,879  $128,319  $95,668 

Canada

  3,661   5,104   15,017 

Total

 $157,540  $133,423  $110,685