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Note 9 - Earnings Per Share (Tables)
9 Months Ended
Sep. 30, 2022
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
  

Three Months Ended
September 30

  

Nine Months Ended
September 30

 
  

2022

  

2021

  

2022

  

2021

 

Basic:

                

Weighted average common shares outstanding

  15,445,569   15,364,043   15,438,375   15,347,042 

Net income/(loss) attributable to National HealthCare Corporation

 $(2,429

)

 $(3,348

)

 $16,092  $122,802 

Earnings/(loss) per common share, basic

 $(0.16

)

 $(0.22

)

 $1.04  $8.00 
                 

Diluted:

                

Weighted average common shares outstanding

  15,445,569   15,364,043   15,438,375   15,347,042 

Effects of dilutive instruments

  -   -   38,728   67,641 

Weighted average common shares outstanding

  15,445,569   15,364,043   15,477,103   15,414,683 
                 

Net income/(loss) attributable to National HealthCare Corporation

 $(2,429

)

 $(3,348

)

 $16,092  $122,802 

Earnings/(loss) per common share, diluted

 $(0.16

)

 $(0.22

)

 $1.04  $7.97