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Note 14 - Net Income (Loss) Per Share (Tables)
12 Months Ended
Oct. 31, 2018
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
Years ended October 31,
 
   
2018
   
2017
   
2016
 
Net income (loss) attributable to OCC (numerator)
  $
1,068,753
    $
(1,738,771
)   $
(1,778,822
)
Shares (denominator)
   
7,593,435
     
6,546,862
     
6,443,162
 
Basic and diluted net income (loss) per share
  $
0.14
    $
(0.27
)   $
(0.28
)