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Note 2 - Business Acquisition (Tables)
9 Months Ended
Jul. 31, 2020
Notes Tables  
Business Acquisition, Pro Forma Information [Table Text Block]
   
Three Months Ended July 31,
   
Nine Months Ended July 31,
 
   
2020
   
2019
   
2020
   
2019
 
                                 
Revenue
  $
9,544
    $
17,640
    $
32,348
    $
50,097
 
Net (loss) income
   
(82
)    
1,387
     
(240
)    
4,049
 
                                 
(Loss) earnings per share
                               
Basic
  $
(0.01
)   $
0.15
    $
(0.02
)   $
0.43
 
Diluted
  $
(0.01
)   $
0.14
    $
(0.02
)   $
0.41
 
Schrofftech [Member]  
Notes Tables  
Schedule of Business Acquisitions, by Acquisition [Table Text Block]
Cash consideration paid
  $
4,000,000
 
Earn-out liability
   
1,249,000
 
Total purchase price
  $
5,249,000
 
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]
Current assets
  $
1,168,000
 
Fixed assets
   
58,000
 
Intangible assets
   
3,299,000
 
Goodwill
   
1,356,000
 
Non-interest bearing liabilities
   
(632,000
)
Net assets
  $
5,249,000
 
C Enterprises [Member]  
Notes Tables  
Schedule of Business Acquisitions, by Acquisition [Table Text Block]
Cash consideration paid
  $
600,000
 
Total purchase price
  $
600,000
 
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]
Current assets
  $
2,008,000
 
Fixed assets
   
30,000
 
Other assets
   
18,000
 
Non-interest bearing liabilities
   
(1,456,000
)
Net assets
  $
600,000