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Note 3 - Concentrations of Credit Risk | 6 Months Ended
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Apr. 30, 2023
Notes to Financial Statements |
Concentration Risk Disclosure [Text Block] | Note 3 – Concentrations of credit risk Financial instruments that potentially subject us to concentrations of credit risk consist primarily of cash and cash equivalents and accounts receivable. We maintain our cash and cash equivalents with high-credit quality financial institutions. At April 30, 2023, we had cash and cash equivalent balances in excess of federally insured limits in the amount of approximately $3.1 million. Sales from each customer that were 10% or greater of net sales were as follows:
|  | Three Months Ended April 30, |  |  | Six Months Ended April 30, |
|  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
Wireless provider |  |  | 20 | % |  |  | 24 | % |  |  | 18 | % |  |  | 28 | %
For the three months ended April 30, 2023, a single wireless carrier customer accounted for 20% of net sales and 24% of total net accounts receivable balance. For the six months ended April 30, 2023, the same wireless carrier customer accounted for 18% of net sales and 24% of total net accounts receivable balance; for the three months ended April 30, 2022, it accounted for 24% of net sales and 21% of total net accounts receivable balance; for the six months ended April 30, 2022, it accounted for 28% of net sales and 21% of total net accounts receivable balance. Although this customer has been a significant customer of the Company, the written agreements with this customer do not have any minimum purchase obligations and this customer could stop buying our products at any time and for any reason. A reduction, delay or cancellation of orders from this customer or the loss of this customer could significantly reduce our 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 -Topic 275 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//275/tableOfContent + Details
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