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UNAUDITED QUARTERLY FINANCIAL DATA (Tables)
 12 Months Ended
Aug. 31, 2019
UNAUDITED QUARTERLY FINANCIAL DATA [Abstract]  
Quarterly Results of Operations
Quarterly Results of Operations

  
2019
  
2018
 
  
Three Months Ended
  
Three Months Ended
 
In thousands, except per share data
 
Nov 30
  
Feb 28
  
May 31
  
Aug 31
  
Nov 30
  
Feb 29
  
May 31
  
Aug 31
 
Total revenues
 
$
3,073
  
$
2,630
  
$
5,185
  
$
9,474
  
$
1,010
  
$
845
  
$
1,212
  
$
3,892
 
Gross profit
  
1,246
   
374
   
1,922
   
2,876
   
580
   
631
   
683
   
904
 
Operating income (loss)
  
519
   
(276
)
  
1,159
   
1,597
   
(200
)
  
(14
)
  
(88
)
  
(7
)
Net income (loss)
 
$
634
  
$
(96
)
 
$
1,261
  
$
3,012
  
$
(97
)
 
$
100
  
$
55
  
$
357
 
                                 
Basic and diluted income (loss) per share
 
$
0.03
  
$
*
  
$
0.05
  
$
0.13
   
*
  
$
*
  
$
*
  
$
0.01
 

*
Amount is less than $.01 per share