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Note 10 - Significant Customers | 12 Months Ended
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Dec. 31, 2018
Notes to Financial Statements |
Concentration Risk Disclosure [Text Block] | 10. Significant Customers Sales to significant customers that represented more than 10 percent of total revenues are as follows:
|  | Year ended December 31, |
|  | 2018 |  |  | 2017 |
Customer A |  |  | * |  |  |  | 16.1 | %
Total |  |  | — |  |  |  | 16.1 | %
The following table summarizes the percentage of total gross accounts receivable from significant customers:
|  | As of December 31, |
|  | 2018 |  |  | 2017 |
Customer A |  |  | * |  |  |  | 20.3 | %
Customer B |  |  | 14.5 | % |  |  | 11.0 | %
Customer C |  |  | 11.8 | % |  |  |  |
Total |  |  | 26.3 | % |  |  | 31.3 | %
* Sales to Customer A (Starin Marketing) in 2018 did not exceed 10% of the revenue. Customer A ceased to be a ClearOne distributor in 2018.

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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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