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Stockholders' Equity and Stock-Based Compensation - Summary of Activity under Incentive Plan (Details) $ / shares in Units, $ in Thousands | 9 Months Ended
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Sep. 29, 2018 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract] |
Outstanding, Number of Shares, Beginning Balance | shares | 857,311
Number of Shares, Options Granted | shares | 136,435
Number of Shares, Options Exercised | shares | (23,750)
Number of Shares, Options Cancelled or forfeited | shares | (62,286)
Outstanding, Number of Shares, Ending Balance | shares | 907,710
Outstanding, Weighted Average Exercise Price Per Share, Beginning Balance | $ / shares | $ 9.49
Weighted Average Exercise Price Per Share, Options Granted | $ / shares | 6.22
Weighted Average Exercise Price Per Share, Options Exercised | $ / shares | 4.10
Weighted Average Exercise Price Per Share, Options Cancelled or forfeited | $ / shares | 10.48
Outstanding, Weighted Average Exercise Price Per Share, Ending Balance | $ / shares | $ 9.07
Aggregate Intrinsic Value, Ending Balance | $ | $ 132

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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 Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + 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 + 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 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=109197908&loc=d3e5070-113901 + Details
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