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Note 13 - Earnings Per Share (Tables)
3 Months Ended
Mar. 31, 2020
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
Three Months Ended
 
   
March 31,
 
   
2020
   
2019
 
                 
Net income attributable to Alaska Communications
  $
2,387
    $
227
 
                 
Weighted average common shares outstanding:
               
Basic shares
   
53,186
     
53,382
 
Effect of stock-based compensation
   
1,051
     
1,223
 
Diluted shares
   
54,237
     
54,605
 
                 
Net income per share attributable to Alaska Communications:
     
 
 
Basic
  $
0.04
    $
0.00
 
Diluted
  $
0.04
    $
0.00