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Note E - Concentrations | 12 Months Ended
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Sep. 30, 2019
Notes to Financial Statements |
Concentration Risk Disclosure [Text Block] | NOTE E – CONCENTRATIONS Suppliers: The Company purchases critical components for our products, including injection molded parts and connectors from third parties, some of whom are single- or limited-source suppliers. If any of our suppliers are unable to ship critical components, we may be unable to manufacture and ship products to our distributors or customers. If the price of these components increases for any reason, or if these suppliers are unable or unwilling to deliver, we may have to find another source, which could result in interruptions, increased costs, delays, loss of sales and quality control problems. Customers: For the fiscal years ended September 30, 2019, 2018, and 2017, the Company had two customers that comprised 29%, 33%, and 35% of net sales, respectively. Both of these customers are distributors. These major customers, like our other customers, purchase our products from time to time through purchase orders, and we do not have any agreements that obligate these major customers to purchase products in the future from us. As of September 30, 2019, two customers accounted for 28% of accounts receivable. Both of these customers were distributors. As of September 30, 2018, two customers accounted for 45% of accounts receivable. One of these customers was a distributor and one was a private label original equipment manufacturer. Disaggregation of Revenue The Company allocates sales from external customers to geographic areas based on the location to which the product is transported. Sales outside the United States are principally to customers in countries in the Caribbean, Canada, Central and South America. The following table presents our domestic and international sales for each of the last three fiscal years:
|  | Year Ended September 30,
|  | 2019 |  | 2018 |  | 2017
United States |  | $ | 78,553,000 |  |  | $ | 72,295,000 |  |  | $ | 67,901,000 |
All Other Countries |  |  | 6,481,000 |  |  |  | 5,356,000 |  |  |  | 6,047,000 |
Total Net Sales |  | $ | 85,034,000 |  |  | $ | 77,651,000 |  |  | $ | 73,948,000 |
Long-lived assets: As of September 30, 2019 and 2018, the Company had property, plant and equipment with a net book value of $1,406,546 and $412,755, respectively, located in Mexico.

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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 + Details
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