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Stockholders' Equity - Summary of Activity in Stock Option Plan (Details) - $ / shares | 12 Months Ended
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Dec. 29, 2018 | Dec. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract] |  |
Outstanding, Number of Shares, Beginning Balance | 857,311 | 470,985
Number of Shares, Options granted | 178,435 | 524,400
Number of Shares, Options exercised | (24,050) | (64,380)
Number of Shares, Options cancelled or forfeited | (166,798) | (73,694)
Number of Shares, Ending Balance | 844,898 | 857,311
Weighted Average Exercise Price, Beginning Balance | $ 9.49 | $ 8.69
Weighted Average Exercise Price, Options granted | 6.00 | 9.90
Weighted Average Exercise Price, Options exercised | 4.09 | 5.86
Weighted Average Exercise Price, Options cancelled or forfeited | 9.85 | 10.47
Weighted Average Exercise Price, Ending Balance | $ 8.84 | $ 9.49

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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=109197908&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=109197908&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=109197908&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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