Note 7 - Major Customer Concentration	9 Months Ended
Jun. 30, 2020
Notes to Financial Statements
Concentration Risk Disclosure [Text Block]	Note 7. Major Customer Concentration For the three months ended June 30, 2020, Customer A comprised 20% and Customer B comprised 11% of the Company’s net sales. For the nine months ended June 30, 2020, Customers A and B comprised 20% and 11% of the Company’s net sales, respectively. Both of these customers are distributors. For the three months ended June 30, 2019, Customers A and B comprised 19% and 12%, respectively, of the Company’s net sales. Both Customers A and B are distributors. For the nine months ended June 30, 2019, Customers A and B comprised 18% and 10%, respectively, while Customer C comprised 11% of the Company’s net sales. Customer C is a private label original equipment manufacturer. 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 June 30, 2020, two customers accounted for 17% and 11% respectively, or 28% in the aggregate, of accounts receivable. Both of these customers are distributors. As of September 30, 2019, two customers accounted for 16%, and 12%, respectively, or 28% in the aggregate of accounts receivable. Both of these customers are distributors.

Note 7 - Major Customer Concentration

9 Months Ended

Jun. 30, 2020

Concentration Risk Disclosure [Text Block]

Note 7. Major Customer Concentration

For the three months ended June 30, 2020, Customer A comprised 20% and Customer B comprised 11% of the Company’s net sales. For the nine months ended June 30, 2020, Customers A and B comprised 20% and 11% of the Company’s net sales, respectively. Both of these customers are distributors. For the three months ended June 30, 2019, Customers A and B comprised 19% and 12%, respectively, of the Company’s net sales. Both Customers A and B are distributors. For the nine months ended June 30, 2019, Customers A and B comprised 18% and 10%, respectively, while Customer C comprised 11% of the Company’s net sales. Customer C is a private label original equipment manufacturer. 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 June 30, 2020, two customers accounted for 17% and 11% respectively, or 28% in the aggregate, of accounts receivable. Both of these customers are distributors. As of September 30, 2019, two customers accounted for 16%, and 12%, respectively, or 28% in the aggregate of accounts receivable. Both of these customers are distributors.