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Condensed Consolidated Statements of Operations (Unaudited) - USD ($)
 3 Months Ended
Jan. 31, 2021
Jan. 31, 2020
Net sales $ 11,876,573 $ 12,887,396
Cost of goods sold 9,567,183 10,483,256
Gross profit 2,309,390 2,404,140
Selling, general and administrative expenses 4,307,924 4,824,124
Royalty (income) expense, net (6,967) 17,558
Amortization of intangible assets 10,894 9,991
Loss from operations (2,002,461) (2,447,533)
Other expense, net:    
Interest expense (173,983) (136,687)
Other, net 2,628 (2,635)
Other expense, net (171,355) (139,322)
Loss before income taxes (2,173,816) (2,586,855)
Income tax expense (benefit) (32,336) 5,033
Net loss $ (2,141,480) $ (2,591,888)
Net loss per share: Basic and diluted (in dollars per share) $ (0.29) $ (0.35)