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Discontinued operations (Tables)
12 Months Ended
Oct. 31, 2017
Discontinued Operations and Disposal Groups [Abstract]  
Summary Financial Information Related to RF Neulink
The following summarized financial information related to the RF Neulink, RadioMobile and Bioconnect divisions is segregated from continuing operations and reported as discontinued operations for the years ended October 31, 2017 and 2016 (in thousands):
 
  2017 2016 
        
Royalties $174 $57 
Bioconnect  10  (148) 
Provision (benefit) for income taxes  68  (33) 
Income (loss) from discontinued operations, net of tax $116 $(58)