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Significant Customers, Concentrations of Credit Risk and Geographic Information
12 Months Ended
Dec. 31, 2021
Significant Customers, Concentrations of Credit Risk and Geographic Information  
Significant Customers, Concentrations of Credit Risk and Geographic Information

Note 7 - Significant Customers, Concentrations of Credit Risk and Geographic Information

We manage and operate our business through one operating segment.

Net revenues from customers equal to, or greater than, 10% of total net revenues are as follows:

Year ended December 31, 

 

    

2021

    

2020

    

Customer A

 

17

%  

17

%  

Customer B

 

15

%

16

%  

Customer C

 

15

%  

12

%

Net revenues by geographic area are as follows:

Year ended December 31, 

    

2021

    

2020

 

(in thousands)

United States

$

2,185

$

2,832

Asia and Middle East

 

4,724

 

3,575

Europe and other

 

569

 

481

Revenue, net

$

7,478

$

6,888

Revenues by geographic area are based on the country of shipment destination. The geographic location of distributors and third-party manufacturing service providers may be different from the geographic location of the purchasers and/or ultimate end users.

We provide credit only to creditworthy third parties who are subject to our credit verification procedures. Accounts receivable balances are monitored on an ongoing basis, and accounts deemed to have credit risk are fully reserved. At December 31, 2021, three customers accounted for 39%, 18%, and 12% of total accounts receivable. At December 31, 2020, two customers accounted for 47% and 22% of total accounts receivable. Our allowance for doubtful accounts was $0 at both December 31, 2021 and 2020.

Our long-lived assets were geographically located as follows:

    

December 31, 

    

December 31, 

 

2021

 

2020

 

(in thousands)

United States

$

536

$

1,194

Asia

 

176

 

332

Total long-lived assets

$

712

$

1,526