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Disaggregation of Revenues, Geographic Sales and Product Sales | 6 Months Ended
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Jun. 29, 2018
Segment Reporting [Abstract] |
Disaggregation of Revenues, Geographic Sales and Product Sales Disclosure [Text Block] | Note 9 — Disaggregation of Revenues, Geographic Sales and Product Sales In the following tables, revenues are disaggregated by category, sales by geographic market and sales by product data. The following breaks down revenues into the following categories (in thousands):
|  | Three Months Ended |  |  | Six Months Ended |
|  | June 29, 2018 |  |  | June 30, 2017 |  |  | June 29, 2018 |  |  | June 30, 2017 |
Non-consignment sales |  | $ | 29,661 |  |  | $ | 18,086 |  |  | $ | 51,842 |  |  | $ | 33,842 |
Consignment sales |  |  | 4,244 |  |  |  | 3,850 |  |  |  | 9,156 |  |  |  | 8,444 |
Total net sales |  |  | 33,905 |  |  |  | 21,936 |  |  |  | 60,998 |  |  |  | 42,286 |
Royalty income (1) |  |  | 149 |  |  |  | 128 |  |  |  | 306 |  |  |  | 259 |
Total revenues |  | $ | 34,054 |  |  | $ | 22,064 |  |  | $ | 61,304 |  |  | $ | 42,545 |
| (1) | Shown as a separate line item in other income, net on the Condensed Consolidated Statements of Operations.
The Company markets and sells its products in over 75 countries and conducts its manufacturing in the United States. Other than China and Japan, the Company does not conduct business in any country in which its sales exceed 10% of worldwide consolidated net sales. Sales are attributed to countries based on location of customers. The composition of the Company’s net sales to unaffiliated customers is set forth below (in thousands):
|  | Three Months Ended |  |  | Six Months Ended |
|  | June 29, 2018 |  |  | June 30, 2017 |  |  | June 29, 2018 |  |  | June 30, 2017 |
China |  | $ | 13,965 |  |  | $ | 6,046 |  |  | $ | 21,875 |  |  | $ | 10,672 |
Japan |  |  | 6,692 |  |  |  | 4,417 |  |  |  | 11,775 |  |  |  | 8,216 |
Other (1) |  |  | 13,248 |  |  |  | 11,473 |  |  |  | 27,348 |  |  |  | 23,398 |
Total revenues |  | $ | 33,905 |  |  | $ | 21,936 |  |  | $ | 60,998 |  |  | $ | 42,286 |
| (1) | No other location individually exceeds 10% of the total sales.
In addition, domestic and foreign sales are as follows (in thousands):
|  | Three Months Ended |  |  | Six Months Ended |
|  | June 29, 2018 |  |  | June 30, 2017 |  |  | June 29, 2018 |  |  | June 30, 2017 |
Domestic |  | $ | 1,895 |  |  | $ | 2,092 |  |  | $ | 3,651 |  |  | $ | 4,050 |
Foreign |  |  | 32,010 |  |  |  | 19,844 |  |  |  | 57,347 |  |  |  | 38,236 |
Total revenues |  | $ | 33,905 |  |  | $ | 21,936 |  |  | $ | 60,998 |  |  | $ | 42,286 |
100% of the Company’s sales are generated from the ophthalmic surgical product segment and the chief operating decision maker makes operating decisions and allocates resources based upon the consolidated operating results, and therefore the Company operates as one operating segment for financial reporting purposes. The Company’s principal products are implantable Collamer lenses (“ICLs”) used in refractive surgery and intraocular lenses (“IOLs”) used in cataract surgery. The composition of the Company’s net sales by product line is as follows (in thousands):
|  | Three Months Ended |  |  | Six Months Ended |
|  | June 29, 2018 |  |  | June 30, 2017 |  |  | June 29, 2018 |  |  | June 30, 2017 |
ICLs |  | $ | 27,292 |  |  | $ | 16,317 |  |  | $ | 48,450 |  |  | $ | 31,588 |
Other product sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
IOLs |  |  | 4,186 |  |  |  | 4,377 |  |  |  | 8,244 |  |  |  | 8,983 |
Other surgical products |  |  | 2,427 |  |  |  | 1,242 |  |  |  | 4,304 |  |  |  | 1,715 |
Total other product sales |  |  | 6,613 |  |  |  | 5,619 |  |  |  | 12,548 |  |  |  | 10,698 |
Total net sales |  | $ | 33,905 |  |  | $ | 21,936 |  |  | $ | 60,998 |  |  | $ | 42,286 |
One customer, our distributor in China, accounted for 41% and 36% of net sales for the three and six months ended June 29, 2018, respectively, and the same customer accounted for 28% and 25% of net sales for the three and six months ended June 30, 2017, respectively. As of June 29, 2018 and December 29, 2017, respectively, one customer, our distributor in China, accounted for 40% and 24% of consolidated trade receivables.

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