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Stockholders' Equity - Summary of Activity in Stock Option Plan (Details) - $ / shares | 12 Months Ended
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Jan. 02, 2021 | Dec. 28, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract] |  |
Outstanding, Number of Shares, Beginning Balance | 1,383,552 | 844,898
Number of Shares, Options granted | 523,650 | 853,650
Number of Shares, Options exercised |  | (210)
Number of Shares, Options cancelled or forfeited | (257,662) | (314,786)
Number of Shares, Ending Balance | 1,649,540 | 1,383,552
Weighted Average Exercise Price, Beginning Balance | $ 6.11 | $ 8.84
Weighted Average Exercise Price, Options granted | 2.13 | 4.55
Weighted Average Exercise Price, Options exercised |  | 3.49
Weighted Average Exercise Price, Options cancelled or forfeited | 7.23 | 9.20
Weighted Average Exercise Price, Ending Balance | $ 4.67 | $ 6.11

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- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated. + References No definition available. + Details
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- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. + References No definition available. + Details
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