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Product Warranties (Schedule Of Changes In Accrual For Product Warranties) (Details) (USD $)
12 Months Ended
Oct. 31, 2013
Oct. 31, 2012
Movement in Standard Product Warranty Accrual [Roll Forward]    
Balance at beginning of year $ 250,000 $ 175,000
Liabilities accrued for warranties issued during the year 385,272 411,381
Warranty claims paid during the period (284,969) (273,947)
Changes in liability for pre-existing warranties during the year (160,303) (62,434)
Balance at end of year $ 190,000 $ 250,000