CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands |
3 Months Ended | 9 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|
Sep. 29, 2018 |
Sep. 30, 2017 |
Sep. 29, 2018 |
Sep. 30, 2017 |
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| Income Statement [Abstract] | |||||||||
| Revenue | [1] | $ 49,160 | $ 44,536 | $ 142,451 | $ 129,874 | ||||
| Cost of revenue | 11,532 | 9,345 | 30,798 | 27,111 | |||||
| Operating expenses: | |||||||||
| Selling and marketing | [2] | 16,439 | 17,749 | 49,197 | 54,799 | ||||
| Research and development | 8,860 | 6,202 | 25,640 | 18,857 | |||||
| General and administrative | 10,987 | 8,840 | 33,047 | 25,528 | |||||
| Depreciation and amortization | 416 | 419 | 1,245 | 1,266 | |||||
| Restructuring charges | 89 | 2,978 | 568 | 2,978 | |||||
| Total operating expenses | 36,791 | 36,188 | 109,697 | 103,428 | |||||
| Operating income (loss) | 837 | (997) | 1,956 | (665) | |||||
| Other income (expense), net | 38 | 612 | (168) | 1,921 | |||||
| Income (Loss) before income taxes | 875 | (385) | 1,788 | 1,256 | |||||
| Benefit from income taxes | (977) | (647) | (2,592) | (1,503) | |||||
| Net income | 1,852 | 262 | 4,380 | 2,759 | |||||
| Accretion of Series A Redeemable Convertible Preferred Stock dividends | (718) | (680) | (2,063) | (1,942) | |||||
| Net income attributable to Series A Redeemable Convertible Preferred Stock | (155) | 0 | (321) | (113) | |||||
| Net income (loss) attributable to common stockholders | $ 979 | $ (418) | $ 1,996 | $ 704 | |||||
| Net income (loss) per share attributable to common stockholders, basic (in dollars per share) | $ 0.03 | $ (0.01) | $ 0.06 | $ 0.02 | |||||
| Net income (loss) per share attributable to common stockholders, diluted (in dollars per share) | $ 0.03 | $ (0.01) | $ 0.06 | $ 0.02 | |||||
| Weighted-average shares used to compute net income (loss) per share attributable to common stockholders: | |||||||||
| Weighted average number of shares outstanding, basic | 31,356 | 29,825 | 30,980 | 29,510 | |||||
| Weighted average number of shares outstanding, diluted | 33,880 | 32,521 | 33,633 | 32,085 | |||||
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- Definition The aggregate cost of goods produced and sold and services rendered during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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| X | ||||||||||
- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. No definition available.
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- References No definition available.
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- Definition The net result for the period of deducting operating expenses from operating revenues. No definition available.
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| X | ||||||||||
- Definition Amount of income (expense) related to nonoperating activities, classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of other expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses associated with a discontinued operation or an asset retirement obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Dividends paid to preferred stock holders that is redeemable solely at the option of the issuer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The aggregate total amount of expenses directly related to the marketing or selling of products or services. No definition available.
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- Definition Amount of decrease to net income for accretion of temporary equity to its redemption value to derive net income apportioned to common stockholders. No definition available.
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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