XML 38 R27.htm IDEA: XBRL DOCUMENT v3.5.0.2
Note 5 - Product Warranties (Details Textual) - USD ($)
3 Months Ended 9 Months Ended
Jul. 31, 2016
Jul. 31, 2015
Jul. 31, 2016
Jul. 31, 2015
Oct. 31, 2015
Oct. 31, 2014
Accounts Payable and Accrued Liabilities [Member]            
Standard and Extended Product Warranty Accrual $ 75,000   $ 75,000   $ 130,000  
Standard and Extended Product Warranty Accrual 75,000 $ 195,000 75,000 $ 195,000 $ 130,000 $ 100,000
Product Warranty Expense $ 34,042 $ 73,228 $ 57,724 $ 229,643