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Summary of Significant Accounting Policies - Warranty Accural (Details) (USD $)
12 Months Ended
Oct. 31, 2012
Oct. 31, 2011
Standard Product Warranty Accrual, Balance Sheet Classification [Abstract]    
Beginning balance $ 54,859 $ 49,859
Warranty service provided (249,449) (161,455)
New product warranties 238,654 139,782
Changes to pre-existing warranty accruals 15,936 26,673
Ending balance $ 60,000 $ 54,859