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Business And Credit Concentrations, Major Customers And Geographic Information (Narrative) (Details) (USD $)
 3 Months Ended 12 Months Ended
Oct. 31, 2013
Jul. 31, 2013
Apr. 30, 2013
Jan. 31, 2013
Oct. 31, 2012
Jul. 31, 2012
Apr. 30, 2012
Jan. 31, 2012
Oct. 31, 2013
Oct. 31, 2012
Oct. 31, 2011
Segment Reporting Information [Line Items]                      
Percent of consolidated net sales per customer                 12.70%    
Consolidated net sales attributable to one major domestic distributor                 $ 10,600,000    
Percent of balance payable per customer                 8.10%    
Percentage of revenues from domestic customers                 70.00% 74.00% 76.00%
Percentage of revenues from international customers                 30.00% 26.00% 24.00%
Total net sales 19,244,066 19,601,919 19,124,600 17,295,453 22,134,429 22,003,689 22,051,197 17,334,015 75,266,038 83,523,330 73,339,591
Operating losses                 (767,121) (4,417,811) (1,474,751)
Total assets 45,414,899       47,762,345       45,414,899 47,762,345  
Centric Solutions LLC [Member]
                      
Segment Reporting Information [Line Items]                      
Total net sales                 1,490,186 1,774,228 839,412
Operating losses                 124,000 515,000 873,000
Total assets $ 329,000       $ 309,000       $ 329,000 $ 309,000