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Note 10 - Revenue Recognition (Tables)

6 Months Ended

Apr. 30, 2019

Notes Tables

Revenue from External Customers by Geographic Areas [Table Text Block]

		Three months ended								Six months ended
		April 30,								April 30,
		2019				2018				2019				2018
United States		$	15,464,981			$	23,877,885			$	29,039,382			$	37,733,193
Outside the United States			3,492,194				3,009,804				6,668,461				6,705,536
Total net sales		$	18,957,175			$	26,887,689			$	35,707,843			$	44,438,729

X

- Definition

Tabular disclosure of revenue from external customers by geographic areas attributed to the entity's country of domicile and to foreign countries from which the entity derives revenue.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph a
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e9038-108599

+ Details

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Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_TableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration