Note 15 - Significant Customers

12 Months Ended

Dec. 31, 2020

Notes to Financial Statements

Concentration Risk Disclosure [Text Block]

15.  SIGNIFICANT CUSTOMERS

The Company sells its products primarily through third-party distributors and value-added resellers, and directly to OEMs, ODMs and EMS providers. The following table summarizes those customers with sales equal to 10% or more of the Company's total revenue: 

	Year Ended December 31,
Customer	2020			2019			2018
Distributor A		24	%		23	%		22	%
Distributor B		11	%		*			10	%

* Represents less than 10%.

The Company’s agreements with these third-party customers were made in the ordinary course of business and  may be terminated with or without cause by these customers with advance notice. Although the Company  may experience a short-term disruption in the distribution of its products and a short-term decline in revenue if its agreement with either of the distributors was terminated, the Company believes that such termination would not have a material adverse effect on its financial statements because it would be able to engage alternative distributors, resellers and other distribution channels to deliver its products to end customers within a short period following the termination of the agreement with the customer.

The following table summarizes those customers with accounts receivable equal to 10% or more of the Company’s total accounts receivable:  

	December 31,
	2020			2019
Distributor A		24	%		24	%
Distributor B		21	%		11	%
Value-added reseller A		13	%		13	%
Direct customer A		10	%		*

* Represents less than 10%.