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Note 5 - Intangible Assets	12 Months Ended
	Oct. 31, 2021
Notes to Financial Statements
Intangible Assets Disclosure [Text Block]	(5) Intangible Assets Aggregate amortization expense for amortizing intangible assets was $45,511, $42,006 and $38,598 for the years ended October 31, 2021, 2020 and 2019, respectively. Amortization of intangible assets is calculated using a straight-line method over the estimated useful lives of the intangible assets. Amortization expense is estimated to be approximately $45,000 for each of the next five years. The gross carrying amounts and accumulated amortization of intangible assets subject to amortization as of October 31, 2021 was $763,718 and $222,910, respectively. The gross carrying amounts and accumulated amortization of intangible assets subject to amortization as of October 31, 2020 was $693,435 and $177,399, respectively.

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- Definition

The entire disclosure for all or part of the information related to intangible assets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-URI http://asc.fasb.org/topic&trid=2144416

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