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Concentrations of credit risk	12 Months Ended
	Oct. 31, 2019
Concentrations of credit risk
Concentrations of credit risk	Note 4 - Concentrations of credit risk Financial instruments which potentially subject the Company to concentrations of credit risk consist primarily of cash and cash equivalents and accounts receivable. The Company maintains its cash and cash equivalents with high-credit quality financial institutions. At October 31, 2019, the Company had cash and cash equivalent balances in excess of federally insured limits in the amount of approximately $11.6 million. Two customers, a distributor and a wireless carrier, accounted for approximately 19% and 23% of the Company’s net sales for the fiscal year ended October 31, 2019. This distributor accounted for approximately 62% of the Company’s net sales for the year ended October 31, 2018. The wireless carrier's accounts receivable balance accounted for approximately 56% of the total net accounts receivable balance at October 31, 2019. The distributor’s accounts receivable balance accounted for approximately 48% of the total net accounts receivable balance at October 31, 2018. Although these customers have been on-going major customers of the Company continuously in the past, the written agreement with these customers do not have any minimum purchase obligations and they could stop buying the Company’s products at any time and for any reason. A reduction, delay or cancellation of orders from these customers or the loss of these customers could significantly reduce the Company’s future revenues and profits.

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- Definition

The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-URI http://asc.fasb.org/topic&trid=2134479

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- References

No definition available.

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