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Concentration of Credit Risk | 12 Months Ended
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Dec. 31, 2016
Risks And Uncertainties [Abstract] |
Concentration of Credit Risk |
(13) | Concentration of Credit Risk
| (a) | Concentration of Sales and Accounts Receivable
The following represents customers that accounted for 10% or more of total revenue during the years ended December 31, 2016, 2015 and 2014 and customers that accounted for 10% or more of total trade accounts receivable at December 31, 2016, 2015 and 2014:
|  | For the Year Ended December 31, |
|  | 2016 |  |  | 2015 |  |  | 2014 |
Percentage of net revenue |  |  |  |  |  |  |  |  |  |  |  |
Customer A |  |  | 31 | % |  |  | 28 | % |  |  | 11 | %
Customer B |  |  | 20 |  |  |  | 15 |  |  |  | 29 |
Customer C |  |  | 6 |  |  |  | 12 |  |  |  | 9 |
|  | For the Year Ended December 31, |
|  | 2016 |  |  | 2015 |  |  | 2014 |
Percentage of gross trade accounts receivable |  |  |  |  |  |  |  |  |  |  |  |
Customer A |  |  | 18 | % |  |  | 12 | % |  |  | 12 | %
Customer B |  |  | 16 |  |  |  | 1 |  |  |  | 1 |
Customer C |  |  | 13 |  |  |  | 0 |  |  |  | 7 |
Customer D |  |  | 13 |  |  |  | 23 |  |  |  | 12 |
| (b) | Revenue by Geography
Net revenue by geographic area are as follows. Revenue is attributed by geographic location based on the bill-to location of the Company’s customers.
|  | For the Year Ended December 31, |
|  | 2016 |  |  | 2015 |  |  | 2014 |
Percentage of net revenue |  |  |  |  |  |  |  |  |  |  |  |
China |  |  | 74 | % |  |  | 64 | % |  |  | 68 | %
Other Asia |  |  | 11 |  |  |  | 21 |  |  |  | 15 |
North America |  |  | 10 |  |  |  | 9 |  |  |  | 11 |
Europe |  |  | 5 |  |  |  | 6 |  |  |  | 6 |
Although the Company ships the majority of antennas to its customers in China (primarily ODM’s and distributors), the end-users of the Company’s products are much more geographically diverse.
| (c) | Concentration of Purchases
During the year ended December 31, 2016, 2015 and 2014, all of the Company’s products were manufactured by two vendors in China. The second vendor started production in April 2013.

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6327-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13531-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6404-108592 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6442-108592 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6351-108592 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13537-108611 + Details
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