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Commitments and Contingencies (Tables) | 12 Months Ended
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Dec. 28, 2019
Commitments And Contingencies Disclosure [Abstract] |
Schedule of Maturities of Operating Lease Liabilities | The following represents maturities of operating lease liabilities as of December 28, 2019 (in thousands):
Fiscal Year |  | Operating Lease Payments |
2020 |  | $ | 1,553 |
2021 |  |  | 1,541 |
2022 |  |  | 318 |
2023 |  |  | — |
2024 |  |  | — |
Total lease payments |  |  | 3,412 |
Less: Imputed interest |  |  | (203 | )
Total future minimum lease payments |  | $ | 3,209 |
Future Minimum Payments for our Purchase Commitments | Our purchase commitments consist primarily of non-cancellable purchase orders with vendors to manufacture certain components and ophthalmic instruments. Future minimum payments for our purchase commitments as of December 28, 2019 are summarized as follows (in thousands):
Fiscal Year |  | Purchase Commitments |
2020 |  | $ | 7,518 |

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- Definition Tabular disclosure of contractual obligation by timing of payment due. Includes, but is not limited to, long-term debt obligation, lease obligation, and purchase obligation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 303 -Paragraph (a) -Subparagraph (5) + Details
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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980 + Details
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