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Description of the business - Schedule of Correction of Immaterial Errors Within Previously Issued Consolidated Condensed Financial Statements (Detail) (USD $)
In Thousands, unless otherwise specified
 6 Months Ended 9 Months Ended
Apr. 30, 2014
Jul. 31, 2014
Jul. 31, 2013
Oct. 31, 2013
Oct. 31, 2012
Cash and cash equivalents $ 9,914 $ 9,436 $ 5,927 $ 8,019 $ 7,103
Total assets 249,107 264,512   239,939  
Additional paid-in capital 59,968 65,584   59,376  
Noncontrolling interest,FreshRealm (309)        
Shareholders' equity 135,602 156,859   128,452  
Net cash provided by operating activities 13,263 27,485 15,624    
Net cash used in investing activities (5,589) (15,753) (4,943)    
Proceeds from issuance of FreshRealm stock   10,000      
Proceeds from financing activities (5,779) (10,315) (11,857)    
Cash and cash equivalents, end of period 9,914 9,436 5,927 8,019 7,103
As previously reported [Member]
          
Cash and cash equivalents 19,914        
Total assets 259,107        
Additional paid-in capital 65,358        
Noncontrolling interest,FreshRealm 4,301        
Shareholders' equity 145,602        
Net cash provided by operating activities 13,263        
Net cash used in investing activities (5,589)        
Proceeds from issuance of FreshRealm stock 10,000        
Proceeds from financing activities 4,221        
Cash and cash equivalents, end of period $ 19,914