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Note 2 - Concentration of Credit Risk and Major Customers | 12 Months Ended
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Dec. 31, 2019
Notes to Financial Statements |
Concentration Risk Disclosure [Text Block] | note 2. CONCENTRATION OF CREDIT RISK AND MAJOR CUSTOMERS Financial instruments that potentially subject us to concentrations of credit risk consist principally of cash and accounts receivable. With regard to cash, we maintain our excess cash balances in checking accounts at two high-credit quality financial institutions. These accounts may at times exceed federally insured limits. We grant credit to customers in the normal course of business and do not require collateral on our accounts receivable. Our largest customer has two divisions that together accounted for 10% or more of our net sales during the year ended December 31, 2019 and 2018. One division accounted for approximately 19.9% and 20.8% of net division sales for the years ended December 31, 2019 and 2018, respectively. The second division accounted for approximately 2.6% and 2.4% of net division sales for the years ended December 31, 2019 and 2018, respectively. Together they accounted for approximately for 22.5% and 23.2% of net sales for the years ended December 31, 2019 and 2018, respectively. Accounts receivable from the customer at December 31, 2019 and 2018 represented 35.6% and 16.3% of our total accounts receivable, respectively.

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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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