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Earnings Per Share (Tables)
9 Months Ended
Apr. 28, 2018
Earnings Per Share [Abstract]  
Computation of Earnings Per Share
The computation of earnings per share is included in the following table.

  
Three Months Ended
  
Nine Months Ended
 
  
April 28,
2018
  
April 29,
2017
  
April 28,
2018
  
April 29,
2017
 
  
(in thousands, except share and per share amounts)
 
             
Net income (loss) attributable to Ecology and Environment, Inc.
 
$
164
  
$
252
  
$
(71
)
 
$
822
 
Dividends declared
  
(860
)
  
---
   
(860
)
  
(859
)
Undistributed earnings (distributions in excess of earnings)
 
$
(696
)
 
$
252
  
$
(931
)
 
$
(37
)
                 
Weighted-average common shares outstanding - basic and diluted
  
4,301,604
   
4,294,102
   
4,301,604
   
4,293,646
 
                 
Distributed earnings per share - basic and diluted
 
$
0.20
  
$
---
  
$
0.20
  
$
0.20
 
Undistributed earnings (distributions in excess of earnings) per share - basic and diluted
  
(0.16
)
  
0.06
   
(0.22
)
  
(0.01
)
Net income (loss) per common share - basic and diluted
 
$
0.04
  
$
0.06
  
$
(0.02
)
 
$
0.19