Care.com (CRCM) 10-Q 10 Nov 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information Document	9 Months Ended
	Sep. 27, 2014
Document and Entity Information [Abstract]	'
Document Type	'10-Q
Amendment Flag	'false
Document Period End Date	27-Sep-14
Document Fiscal Year Focus	'2014
Document Fiscal Period Focus	'Q3
Trading Symbol	'CRCM
Entity Registrant Name	'Care.com Inc
Entity Central Index Key	'0001412270
Current Fiscal Year End Date	'--12-27
Entity Filer Category	'Non-accelerated Filer
Entity Common Stock, Shares Outstanding	31,487,177

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets Statement (USD $)	Sep. 27, 2014	Dec. 28, 2013
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$83,083	$29,959
Restricted cash	510	246
Accounts receivable (net of allowance of $0 and $56, respectively)	2,711	1,609
Unbilled accounts receivable	3,447	2,477
Prepaid expenses and other current assets	3,070	1,731
Inventory, Net	2,097	0
Total current assets	94,918	36,022
Property and equipment, net	1,846	1,553
Intangible assets, net	11,558	11,418
Goodwill	104,872	62,686
Other non-current assets	2,948	2,150
Total assets	216,142	113,829
Current liabilities:	'	'
Accounts payable	7,329	2,031
Accrued expenses and other current liabilities	16,844	7,023
Current contingent acquisition consideration	10,643	5,463
Deferred revenue	13,653	8,304
Total current liabilities	48,469	22,821
Contingent acquisition consideration	7,549	5,166
Deferred tax liability	2,070	1,112
Other non-current liabilities	845	785
Total liabilities	58,933	29,884
Commitment and contingencies (see note 6)	'	'
Redeemable convertible preferred stock, $0.01 par value; 22,632 shares authorized at December 28, 2013; 21,299 shares issued and outstanding at December 28, 2013; aggregate liquidation value of $161,666 as of December 28, 2013	0	152,251
Stockholders' equity (deficit)	'	'
Preferred stock, $0.001 par value; 5,000 shares authorized; no shares issued and outstanding	0	0
Common stock, $0.001 par value; 300,000 shares authorized; 31,484 and 3,197 shares issued and outstanding as of September 27, 2014 and December 28, 2013, respectively	31	3
Additional paid-in capital	275,932	9,311
Accumulated deficit	-119,440	-79,563
Accumulated other comprehensive income	686	1,943
Total stockholders' equity (deficit)	157,209	-68,306
Total liabilities, redeemable convertible preferred stock and stockholders' equity (deficit)	$216,142	$113,829

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 27, 2014	Dec. 28, 2013
Allowance for accounts receivables	$0	$56,000
Preferred stock, par value, dollars per share	$0.00	$0.00
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value, in dollars per share	$0.00	$0.00
Common stock, shares authorized	300,000,000	300,000,000
Common stock, shares issued	31,484,000	3,197,000
Common stock, shares outstanding	31,484,000	3,197,000
Redeemable Convertible Preferred Stock	'	'
Redeemable convertible preferred stock, par value	$0.01	$0.01
Redeemable convertible preferred stock, shares authorized	0	22,632,000
Redeemable convertible preferred stock, shares issued	0	21,299,000
Redeemable convertible preferred stock, shares outstanding	0	21,299,000
Redeemable convertible preferred stock, liquidation preference	$0	$161,666,000

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Operations (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013
Income Statement [Abstract]	'	'	'	'
Revenue	$32,054	$21,681	$83,161	$58,976
Cost of revenue	9,132	5,158	20,616	13,992
Operating expenses:	'	'	'	'
Selling and marketing	22,900	18,590	61,371	43,852
Research and development	4,417	2,862	12,559	8,419
General and administrative	9,479	5,450	22,299	13,307
Depreciation and amortization	1,113	1,090	3,249	3,166
Total operating expenses	37,909	27,992	99,478	68,744
Operating loss	-14,987	-11,469	-36,933	-23,760
Other expense, net	-644	-201	-3,323	-318
Loss before income taxes	-15,631	-11,670	-40,256	-24,078
Provision for income taxes	-1,178	62	-384	587
Net loss	-14,453	-11,732	-39,872	-24,665
Accretion of preferred stock	0	-14	-4	-42
Net loss attributable to common stockholders	($14,453)	($11,746)	($39,876)	($24,707)
Net loss per share attributable to common stockholders:	'	'	'	'
Basic and diluted (in dollars per share)	($0.46)	($3.86)	($1.42)	($8.36)
Weighted-average shares used to compute net loss per share attributable to common stockholders:	'	'	'	'
Basic and diluted (in shares)	31,362	3,042	27,995	2,957

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Comprehensive Loss (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013
Statement of Comprehensive Income [Abstract]	'	'	'	'
Net loss	($14,453)	($11,732)	($39,872)	($24,665)
Other comprehensive income:	'	'	'	'
Foreign currency translation adjustments	-854	607	-1,257	352
Comprehensive loss	($15,307)	($11,125)	($41,129)	($24,313)

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Cash Flows (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 27, 2014	Sep. 28, 2013
Cash flows from operating activities	'	'
Net loss	($39,872)	($24,665)
Adjustments to reconcile net loss to net cash used in operating activities:	'	'
Stock-based compensation	4,829	1,196
Depreciation and amortization	3,914	5,167
Deferred taxes	-548	683
Contingent consideration expense	404	423
Change in fair value of contingent consideration payable in preferred stock	2,258	0
Change in fair value of stock warrants	606	81
Changes in operating assets and liabilities, net of effects from acquisitions:	'	'
Restricted cash	-421	-360
Accounts receivable	-1,003	-449
Unbilled accounts receivable	-974	-557
Prepaid expenses and other current assets	-167	-535
Inventories	-209	0
Other non-current assets	490	5
Accounts payable	3,479	2,797
Accrued expenses and other current liabilities	9,270	7,506
Deferred revenue	3,705	3,188
Other non-current liabilities	639	146
Net cash used in operating activities	-13,600	-5,374
Cash flows from investing activities	'	'
Purchases of property and equipment	-878	-1,069
Payments for acquisitions, net of cash acquired	-23,364	-398
Cash withheld for purchase consideration	-73	0
Net increase in other assets	-2,825	0
Net cash used in investing activities	-27,140	-1,467
Cash flows from financing activities	'	'
Net proceeds from issuance of common stock upon initial public offering	96,007	0
Proceeds from the issuance of common stock	319	455
Payments of contingent consideration previously established in purchase accounting	-2,845	0
Payments of deferred offering costs	0	-235
Net cash provided by financing activities	93,481	220
Effect of exchange rate changes on cash and cash equivalents	383	-152
Net increase (decrease) in cash and cash equivalents	53,124	-6,773
Cash and cash equivalents, beginning of the period	29,959	44,776
Cash and cash equivalents, end of the period	83,083	38,003
Supplemental disclosure of cash flow activities	'	'
Cash paid for taxes	94	22
Supplemental disclosure of non-cash investing and financing activities	'	'
Issuance of preferred and common stock in connection with acquisitions	2,622	0
Accretion of preferred stock to redemption value	4	42
Conversion of preferred stock to common stock	154,856	0
Reclassification of warrant liability to additional paid-in capital	968	0
Reclassification of contingent consideration payable in common shares	4,878	0
Unpaid deferred offering costs	$0	$621

Description_of_Business_and_Su

Description of Business and Summary of Significant Accounting Policies	9 Months Ended
	Sep. 27, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Description of Business and Summary of Significant Accounting Policies	'
	Description of Business and Summary of Significant Accounting Policies
	Care.com, Inc. (the “Company”, “we”, “us”, and “our”), a Delaware corporation, was incorporated on October 27, 2006. We are the world’s largest online marketplace for finding and managing family care. Our consumer matching solutions enable families to connect to caregivers and caregiving services in a reliable and easy way and our payment solutions enable families to pay caregivers electronically online or via their mobile device and to manage their household payroll and tax matters with Care.com HomePay. In addition, we serve employers by providing access to our platform to employer-sponsored families and care-related businesses-such as day care centers, nanny agencies and home care agencies-who wish to market their services to our care-seeking families and recruit our caregiver members. We also operate a social e-commerce service selling curated products designed for families. This service generates revenue through the sale of subscriptions and other e-commerce products to customers in the United States.
	Certain Significant Risks and Uncertainties
	We operate in a dynamic industry and, accordingly, our business is affected by a variety of factors. For example, we believe that changes in any of the following areas could have a significant negative effect on our future financial position, results of operations or cash flows: rates of revenue growth; engagement and usage of our products; scaling and adaptation of existing technology and network infrastructure; competition in our market; management of our growth; acquisitions and investments; qualified employees and key personnel; protection of our brand and intellectual property; protection of customers’ information and privacy concerns; and security measures related to our website, among other things.
	Basis of Presentation
	The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in our Annual Report on Form 10-K for the fiscal year ended December 28, 2013, filed on March 6, 2014.
	The consolidated balance sheet as of December 28, 2013, included herein was derived from the audited financial statements as of that date, but does not include all disclosures including notes required by GAAP on an annual reporting basis.
	In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, and cash flows for the interim periods, and are not necessarily indicative of the results of operations to be anticipated for Fiscal 2014 or any future period.
	Principles of Consolidation
	The accompanying unaudited condensed consolidated financial statements include the accounts of the Company and our wholly owned subsidiaries, after elimination of all intercompany balances and transactions.
	Fiscal Year-End
	For periods prior to Fiscal 2013, we operated and reported on a calendar basis fiscal year. Beginning in the third quarter of Fiscal 2013, we operate and report using a 52 or 53 week fiscal year ending on the Saturday in December closest and prior to December 31. Accordingly, our fiscal quarters end on the Saturday that falls closest to the last day of the third month of each quarter.
	Use of Estimates
	The preparation of our unaudited condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of income and expenses during the reporting period. On an ongoing basis, we evaluate our estimates, including those related to accounts receivable and revenue allowances, the useful lives of long-lived assets including property and equipment, intangible assets, valuation of common and preferred stock and warrants to purchase preferred stock, fair value of stock-based awards, goodwill, income taxes, contingent consideration, and contingencies. We base our estimates of the carrying value of certain assets and liabilities on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, when these carrying values are not readily available from other sources. These estimates are based on information available as of the date of the condensed consolidated financial statements; therefore, actual results could differ from the estimates.
	Revenue Recognition
	In general, we recognize revenue when (i) persuasive evidence of an arrangement exists, (ii) delivery has occurred or services have been rendered to the customer, (iii) the fee is fixed or determinable, and (iv) collectability is reasonably assured. We derive our revenue primarily from on-going subscription fees. Revenue from subscription fees is recognized on a daily basis over the subscription term or on a pro-rata basis as the services are delivered. Revenue from background checks, lead generation and advertising is recognized in the period earned. For product sales, these criteria are deemed to have been met when the items are delivered to the end customer. Other service revenues are recognized as the services are performed.
	Certain of our arrangements provide companies the opportunity to purchase Care.com services on behalf of their employees. These arrangements typically include a subscription to our consumer matching solutions for their employees. These arrangements are accounted for as multiple element arrangements. We have concluded that each element in the arrangement has stand-alone value as the individual services can be sold separately. In addition, there is no right of refund once a service has been delivered. Therefore, we have concluded each element of the arrangement is a separate unit of accounting. In accordance with authoritative guidance on revenue recognition, we allocate consideration at the inception of an arrangement to each unit of accounting based on the relative selling price method in accordance with the selling price hierarchy. The objective of the hierarchy is to determine the price at which we would transact a sale if the service were sold on a stand-alone basis, and requires the use of: (1) vendor-specific objective evidence (‘‘VSOE’’), if available; (2) third-party evidence (‘‘TPE’’), if VSOE is not available; and (3) best estimate of selling price (‘‘BESP’’), if neither VSOE nor TPE is available. Since VSOE or TPE are not typically available, BESP is generally used to allocate the selling price to each unit of accounting. We determine BESP for units of account by considering multiple factors including, but not limited to, prices we charge for similar offerings, sales volumes, geographies and other factors contemplated in negotiating multiple element transactions.
	Inventories
	Inventories consist of finished goods comprised of product for resale and are stated at the lower of cost or market, and are valued on a first-in, first-out (FIFO) basis. Inventory costs primarily consist of product costs from suppliers, as well as inbound shipping and handling fees. The majority of our inventory is not purchased until we receive a customer order and it is subsequently relieved from inventories when delivered to the customer. As of September 27, 2014, our inventory balance of $2.1 million consists of finished goods.
	Goods In-Transit
	Goods in-transit directly from suppliers to customers are recorded in prepaid expenses and other current assets. Risk of loss and the transfer of title from the supplier to us occurs at freight on board shipping point. As of September 27, 2014, goods in-transit were immaterial.
	Subsequent Events Consideration
	We consider events or transactions that occur after the balance sheet date but prior to the issuance of the financial statements to provide additional evidence for certain estimates or to identify matters that require additional disclosure. Subsequent events have been evaluated as required. There were no material recognized subsequent events recorded in the unaudited condensed consolidated financial statements as of and for the nine months ended September 27, 2014.
	Recently Issued and Adopted Accounting Pronouncements
	In August 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update No. 2014-15, "Presentation of Financial Statements - Going Concern", which requires management to evaluate, at each annual and interim reporting period, whether there are conditions or events that raise substantial doubt about the entity’s ability to continue as a going concern within one year after the date the financial statements are issued and provide related disclosures.  ASU 2014-15 is effective for annual periods ending after December 15, 2016 and interim periods thereafter.  Early application is permitted.  The adoption of ASU 2014-15 is not expected to have a material effect on our condensed consolidated financial statements or disclosures.
	In May 2014, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers”, which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. ASU 2014-09 will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. The new standard is effective for us in our fiscal year 2018. Early application is not permitted. We are evaluating the effect that ASU 2014-09 will have on our consolidated financial statements and related disclosures. The standard permits the use of either the retrospective or cumulative effect transition method. We have not yet selected a transition method nor have we determined the effect of the standard on our ongoing financial reporting.
	In April 2014, the FASB issued ASU No. 2014-08, “Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity” to reduce diversity in practice for reporting discontinued operations. Under the previous guidance, any component of an entity that was a reportable segment, an operating segment, a reporting unit, a subsidiary, or an asset group was eligible for discontinued operations presentation. The revised guidance only allows disposals of components of an entity that represent a strategic shift (e.g., disposal of a major geographical area, a major line of business, a major equity method investment, or other major parts of an entity) and that have a major effect on a reporting entity’s operations and financial results to be reported as discontinued operations. The revised guidance also requires expanded disclosure in the financial statements for discontinued operations as well as for disposals of significant components of an entity that do not qualify for discontinued operations presentation. The updated guidance is effective for periods beginning after December 15, 2014. We currently do not have operations that are reported as discontinued operations and do not expect the adoption of this guidance to have a material effect on our financial position, results of operations, or cash flows.
	In July 2013, the FASB issued ASU No. 2013-11, "Income Taxes (Topic740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carry forward, a Similar Tax Loss, or a Tax Credit Carry forward Exists (a consensus of the FASB Emerging Issues Task Force)." ASU 2013-11 states that an unrecognized tax benefit, or a portion of an unrecognized tax benefit, should be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carry forward, a similar tax loss, or a tax credit carry forward, except in certain situations. ASU 2013-11 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. Early adoption and retrospective application are permitted. The amendments should be applied prospectively to all unrecognized tax benefits that exist at the effective date. The adoption of this amendment did not have a material impact on our condensed consolidated financial statements.

Fair_Value_Measurements

Fair Value Measurements	9 Months Ended
	Sep. 27, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	Fair Value Measurements
	Accounting Standards Codification (“ASC”) 820, Fair Value Measurements and Disclosures, establishes a three-level valuation hierarchy for disclosure of fair value measurements. The categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the measurement of fair value. The three levels of the hierarchy are defined as follows:
	•	Level 1 inputs - Unadjusted quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date.
	•	Level 2 inputs - Inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. These might include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (such as interest rates, volatilities, prepayment speeds, credit risks, etc.), or inputs that are derived principally from or corroborated by market data by correlation or other means.
	•	Level 3 inputs - Unobservable inputs for determining the fair values of assets or liabilities that reflect an entity’s own assumptions about the assumptions that market participants would use in pricing the assets or liabilities.
	Recurring Fair Value Measurements
	Assets
	Cash equivalents - Cash equivalents include money market mutual funds with original maturities of three months or less. The fair value measurement of these assets is based on quoted market prices in active markets for identical assets and, therefore, these assets are recorded at fair value on a recurring basis and classified as Level 1 in the fair value hierarchy.
	Liabilities
	Contingent Acquisition Consideration - Contingent acquisition consideration includes the fair value of contingent consideration paid by us in connection with corporate acquisitions based on the likelihood of issuing preferred and common stock and paying cash related to certain revenue and other milestones. We recorded our estimate of the fair value of this contingent consideration based on the evaluation of the likelihood of the achievement of the contractual conditions that would result in the payment of the contingent consideration and weighted probability assumptions of these outcomes. The fair value of the liability was estimated using a discounted cash flow technique with significant inputs that are not observable in the market and thus represents a Level 3 fair value measurement as defined in ASC 820, Fair Value Measurements and Disclosures.
	For contingent consideration payable in preferred stock, we used a valuation of the company based on both an income and market approach to determine the fair value of the preferred stock as of the acquisition date and on an-ongoing basis. Upon the closing of our initial public offering (“IPO”) in January 2014, the contingent consideration payable in preferred stock was automatically converted to the right to receive common stock at the then-applicable conversion rate. Contingent consideration payable in preferred stock was written up to fair value as of the closing date of the IPO and was reclassified to permanent equity and will no longer be marked-to-market. There have been no changes in the probability of the earn-out payment through September 27, 2014.
	The cash portion of the contingent consideration liability has been discounted to reflect the time value of money, and therefore, as the milestone date approaches, the fair value of this liability will increase. This increase in fair value was recorded in general and administrative expenses in the accompanying consolidated statements of operations. The preferred stock portion of the contingent consideration represented a liability in accordance with ASC 480-10, Distinguishing Liabilities from Equity, and was marked-to-market each reporting period with changes in market value recognized in other expense, net in the accompanying consolidated statements of operations.
	During the year-ended December 28, 2013 we reassessed the probability of achievement on the Parents In A Pinch (“PIAP”) contingent acquisition cash payment based on the achievement certain revenue milestones and the probability of reaching both the 2013 and 2014 milestones, which resulted in $0.6 million of incremental expense. No incremental expense was recorded in the year-to-date period ended September 27, 2014. During the year-to-date period ended September 27, 2014, in connection with our acquisition with Citrus Lane, Inc. (“Citrus Lane”), we recognized acquisition consideration payable in cash and shares totaling $17.5 million. The probability of achievement of this earn-out is assessed at 100%.
	The significant inputs in the Level 3 measurement not supported by market activity included our probability assessments of expected future cash flows related to our acquisition of both Breedlove and Citrus Lane during the earn-out period, appropriately discounted considering the uncertainties associated with the obligation, and calculated in accordance with the terms of the applicable transaction agreement. As such, the cash portion of the contingent consideration liability has been discounted to reflect the time value of money, and therefore, as the milestone date approaches, the fair value of this liability will increase.
	Preferred Stock Warrants - Preferred stock warrants consist of warrants issued in connection with debt financings. The fair value of the warrants was determined using the Black-Scholes option-pricing model. In conjunction with the closing of the IPO, the warrant exercisable for shares of our Series A-1 Preferred Stock was automatically converted into a warrant exercisable for shares of our common stock, resulting in the reclassification of the related convertible preferred stock warrant liability to additional paid-in capital as the warrant met the criteria for equity classification upon its conversion to a warrant for the purchase of common stock. The warrant liability was re-measured to fair value prior to reclassification to additional paid-in capital. As of September 27, 2014, we had no outstanding warrant liability. Refer to Note 7 - Stockholders’ Equity (Deficit) for a discussion of the methodology used and changes in the fair value of our preferred stock warrants.
	The following table presents information about our assets and liabilities measured at fair value on a recurring basis as of September 27, 2014 and December 28, 2013 and indicates the fair value hierarchy of the valuation techniques we utilized to determine such fair value (in thousands):
		September 27, 2014										December 28, 2013
		Fair Value Measurements Using Input Types										Fair Value Measurements Using Input Types
		Level 1			Level 2			Level 3		Total		Level 1		Level 2		Level 3		Total
	Assets:
	Money market mutual funds	$	58,824		$	—		$	—	$	58,824	$	15,085	$	—	$	—	$	15,085
	Total assets	$	58,824		$	—		$	—	$	58,824	$	15,085	$	—	$	—	$	15,085
	Liabilities:
	Contingent acquisition consideration	$	—		$	—		$	18,192	$	18,192	$	—	$	—	$	10,630	$	10,630
	Preferred stock warrants	—			—			—		—		—		—		362		362
	Total liabilities	$	—		$	—		$	18,192	$	18,192	$	—	$	—	$	10,992	$	10,992
	The following table sets forth a summary of changes in the fair value of our contingent acquisition consideration and preferred stock warrants which represent recurring measurements that are classified within Level 3 of the fair value hierarchy wherein fair value is estimated using significant unobservable inputs (in thousands):
		September 27, 2014						December 28, 2013
		Contingent Acquisition			Preferred Stock Warrants			Contingent Acquisition		Preferred Stock Warrants
		Consideration						Consideration
	Beginning balance	$	10,630		$	362		$	9,288	$	247
	Contingent consideration liability recorded in connection with Citrus Lane acquisition	15,245			—			—		—
	Increase in fair value included in earnings	2,663			606			1,342		115
	Reclassification to permanent equity	(4,878		)	(968		)	—		—
	Contingent acquisition consideration payments	(5,468		)	—			—		—
	Ending balance	$	18,192		$	—		$	10,630	$	362
	Non-Recurring Fair Value Measurements
	We remeasure the fair value of certain assets and liabilities upon the occurrence of certain events. Such assets are comprised of long-lived assets, including property and equipment, intangible assets and goodwill. No remeasurement of such assets occurred at September 27, 2014 and December 28, 2013. Other financial instruments not measured or recorded at fair value in the accompanying unaudited condensed consolidated balance sheets principally consist of accounts receivable, accounts payable, and accrued liabilities. The estimated fair values of these instruments approximate their carrying values due to their short-term nature.

Business_Acquisitions

Business Acquisitions	9 Months Ended
	Sep. 27, 2014
Business Combinations [Abstract]	'
Business Acquisitions	'
	Business Acquisitions
	Citrus Lane
	On July 17, 2014, we acquired Citrus Lane, a social e-commerce service selling curated products designed for families for a total consideration of $22.9 million in cash and 0.4 million shares of common stock (valued at $3.8 million). In addition, up to $16.4 million in cash (valued at $15.2 million) and up to an additional 0.1 million shares of common stock (valued at $1.1 million) will be payable in the event Citrus Lane achieves certain milestones in 2015 and 2016.
	As part of the transaction, we also exchanged both vested and unvested options to purchase Citrus Lane common stock for options to purchase Care.com common stock at an exchange ratio implied by the value of the merger consideration received by the holders of outstanding Citrus Lane shares (valued at $1.0 million). In connection with this acquisition, we incurred approximately $1.8 million in direct acquisition costs which were expensed as incurred and are included in general and administrative expense in our consolidated statements of operations. Of the initial consideration value, $5.0 million was placed in an escrow account to secure indemnification obligations contained in the purchase agreement.
	We recorded our estimate of the fair value of this contingent consideration based on the evaluation of the likelihood of the achievement of the contractual conditions that would result in the payment of the contingent consideration and weighted probability assumptions of these outcomes. The fair value of the liability was estimated using a discounted cash flow technique with significant inputs that are not observable in the market and thus represents a Level 3 fair value measurement as defined in ASC 820, Fair Value Measurements and Disclosures. The significant inputs in the Level 3 measurement not supported by market activity included our probability assessments of expected future cash flows related to our acquisition of Citrus Lane during the earn-out period, appropriately discounted considering the uncertainties associated with the obligation, and calculated in accordance with the terms of the equity purchase agreement. There have been no changes in the probability of the earn-out payment through September 27, 2014. The cash portion of the contingent consideration liability has been discounted to reflect the time value of money, and therefore, as the milestone dates approach, the fair value of this liability will increase. This increase in fair value was recorded in general and administrative expenses in the accompanying consolidated statements of operations. The results of operations for Citrus Lane have been included in our consolidated financial statements since the date of acquisition. For the period from the date of acquisition to September 27, 2014, revenue and net loss for Citrus Lane totaled $2.5 million and $2.4 million, respectively.
	Identifiable Intangible Assets
	As part of the preliminary purchase price allocation, we determined that Citrus Lane's primary separately identifiable intangible assets proprietary software and trade name. We used a hybrid approach to value the proprietary software. This approach incorporates elements of the income and cost approaches, specifically the lost profits and replacement cost methods. We used a relief from royalty method to value the trade name. This method assumes that a willing buyer would pay a royalty for the use of an asset, rather than incurring the costs associated with internally developing an asset of identical utility. The fair value is calculated by taking the present value of avoided after-tax cash flows discounted back to a present value. The baseline data for this analysis was the cash flow estimates used to price the transaction. Cash flows were forecasted for each intangible asset then discounted based on an appropriate discount rate. The 18.4% discount rate applied was benchmarked with reference to the implied rate of return from the transaction model, as well as an estimate of a market participant's weighted-average cost of capital based on the capital asset pricing model.
	In estimating the useful life of the acquired assets, we considered ASC 350-30-35, Intangibles-Goodwill and Other, and reviewed the following: the expected use by the combined company of the assets acquired, the expected useful life of another asset (or group of assets) related to the acquired assets, legal, regulatory or other contractual provisions that may limit the useful life of an acquired asset or may enable the extension of the useful life of an acquired asset without substantial cost, the effects of obsolescence, demand, competition and other economic factors, and the level of maintenance expenditures required to obtain the expected future cash flows from the asset.
	We amortize these intangible assets over their estimated useful lives using a method that is based on estimated future cash flows, as we believe this will approximate the pattern in which the economic benefits of the assets will be utilized, or where we have concluded that the cash flows were not reliably determinable, on a straight-line basis.
	Preliminary Allocation of Purchase Price
	The acquisition has been accounted for as a business combination under FASB ASC Topic 805, Business Combinations (“ASC 805”). The purchase price has been assigned to the assets acquired and liabilities assumed based on their estimated fair values. As of September 27, 2014, we recognized $43.4 million of goodwill. A summary of the preliminary purchase price allocation for the acquisition of Citrus Lane is as follows (in thousands):
	Total purchase consideration
	Cash	$	22,881
	Fair value of common stock	3,844
	Fair value of contingent acquisition consideration	16,344
	Fair value of stock options exchanged	1,026
	Total purchase price	$	44,095
	Allocation of the purchase consideration
	Tangible assets	$	2,760
	Liabilities assumed	(4,089		)
	Identifiable intangible assets	3,500
	Deferred tax liabilities	(1,449		)
	Goodwill	43,373
	Total purchase price allocation	$	44,095
	The fair value of the stock options exchanged recorded as purchase price represents the fair value of the Citrus Lane options converted into options of our common stock attributable to pre-combination services pursuant to ASC 805, Business Combinations. The remainder of the fair value of these options of $2.3 million will be recognized as stock-based compensation expense over the remaining vesting period, which is approximately 2.6 years. We estimated fair value of the stock options using a binomial valuation model with the following weighted average assumptions: risk free rate of 1.8%, expected volatility of 49.4%, expected life of 5.4 years and dividend of 0.0%. The weighted average fair value of stock options granted is $9.34 per share.
	The estimated fair values for specifically identifiable intangible assets acquired are as follows (in thousands):
					Weighted-average amortization period
					(in years)
	Proprietary software	$	3,100		7
	Trade-names	400			8
	Total purchase price	$	3,500
	The sellers are also entitled to additional contingent consideration (“Earn-Out”) based upon the performance of the business acquired during a two year period spanning from July 17, 2014 through July 17, 2016. This consideration is based on the ability to introduce new product offerings or product options to Citrus Lane customers. In the event the Earn-Out targets are achieved, we will make payments of $8.2 million in each of the periods ended September 26, 2015, and September 24, 2016, respectively. The estimated fair value of the contingent consideration was determined to be $15.2 million at the acquisition date and was initially recorded in current and non-current contingent acquisition consideration on the Consolidated Balance Sheet. There is also a component of the contingent consideration payable in common stock, which is based on in a fixed number of shares on the each of the period ended September 26, 2015 and September 24, 2016, and has been recorded as permanent equity in purchase accounting using the acquisition date stock price part of our purchase accounting. We determined the future estimated fair value for the contingent consideration by applying a present value calculation of probable earn-out payments using an appropriate discount rate for us. We recorded charges of $0.2 million due to the accretion of changes in the valuation of contingent consideration, reported in general and administrative expenses. In addition, certain former employees of Citrus Lane may receive two annual contingent payments (subject to adjustment) not to exceed $1.4 million (the “Employee Bonus Pool”). A portion of the Employee Bonus Pool, $0.3 million, is based on the achievement of the Earn-Out targets noted earlier as well as the individual remaining employed by Care.com. The remaining $1.1 million, is based solely on the individual remaining employed by Care.com. Each is payable after the first and second anniversaries, from the date of acquisition, provided the individuals remain employed by Care.com. In case of separation, the total Employee Bonus Pool is reallocated to the remaining individuals. Since these payments are contingent on future employment, they are being recognized as compensation expense ratably over the required service periods. We recorded compensation expense of $0.2 million in the three and nine months ended September 27, 2014.
	The excess of the purchase price over the estimated fair value of the tangible net assets and intangible assets acquired was recorded to goodwill. The factors contributing to the recognition of the amount of goodwill are based on several strategic and synergistic benefits that are expected to be realized from the Citrus Lane acquisition. None of the goodwill is expected to be deductible for income tax purposes.
	Pro forma Information
	The following pro forma financial information presents the combined results of operations of Care.com and Citrus Lane as if the acquisition had occurred on January 1, 2013, after giving effect to certain pro forma adjustments. The pro forma adjustments reflected herein include only those adjustments that are directly attributable to the Citrus Lane acquisition, factually supportable, and expected to have a continuing impact on us. The pro forma financial information does not reflect any adjustments for anticipated synergies resulting from the acquisition and is not necessarily indicative of the operating results that would have actually occurred had the transaction been consummated on January 1, 2013.
		Pro Forma
		Three Months Ended						Nine Months Ended
		27-Sep-14			28-Sep-13			27-Sep-14			28-Sep-13
	(in thousands)
	Revenue	$	37,069		$	23,437		$	88,176		$	62,536
	Net loss	$	(17,682	)	$	(13,753	)	$	(43,101	)	$	(29,829	)
	Consmr
	On March 3, 2014, we entered into an agreement with Consmr, Inc. (“Consmr”), the developer of a mobile application for ratings and reviews of consumer products, pursuant to which we acquired the right to hire all employees of Consmr for total consideration of $0.6 million. Approximately $0.1 million of the purchase price was held back and is payable in one year subject to the continuing employment of the employees. Such amount is being recognized as compensation expense over the required employment period. The transaction is presented as an acquisition of a business and the consideration transferred, except for the amount held back, was recorded as goodwill.
	As a result of this transaction, on March 4, 2014 all former employees of Consmr became employees of Care.com. Pro forma information related to Consmr is not presented as the impact of the acquisition on our consolidated results of operations is not significant.

Supplemental_Balance_Sheet_Inf

Supplemental Balance Sheet Information	9 Months Ended
	Sep. 27, 2014
Statement of Financial Position [Abstract]	'
Supplemental Balance Sheet Information	'
	Supplemental Balance Sheet Information
	The following table presents the detail of property and equipment, net for the periods presented (in thousands):
		September 27,			December 28,
		2014			2013
	Computer equipment	$	1,769		$	1,444
	Furniture and fixtures	1,365			1,154
	Software	456			199
	Leasehold improvements	343			183
	Total	3,933			2,980
	Less accumulated depreciation	(2,087		)	(1,427		)
	Property and equipment, net	$	1,846		$	1,553
	Depreciation expense for the three months ended September 27, 2014 and September 28, 2013 was $0.2 million and $0.2 million, respectively, and for the nine months ended September 27, 2014 and September 28, 2013 $0.6 million and $0.5 million, respectively.
	The following table presents the detail of accrued expenses and other current liabilities for the periods presented (in thousands):
		September 27,			December 28,
		2014			2013
	Payroll and compensation	$	1,875		$	3,134
	Tax-related expense	1,102			372
	Marketing expenses	10,303			1,028
	Other accrued expenses	3,564			2,489
	Total accrued expenses and other current liabilities	$	16,844		$	7,023

Goodwill_and_Intangible_Assets

Goodwill and Intangible Assets	9 Months Ended
	Sep. 27, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Goodwill and Intangible Assets	'
	Goodwill and Intangible Assets
	The following table presents the change in goodwill for the periods presented (in thousands):
	Balance as of December 28, 2013	$	62,686
	Citrus Lane acquisition	43,373
	Consmr acquisition	488
	Effect of currency translation	(1,675		)
	Balance as of September 27, 2014	$	104,872
	The following table presents the detail of intangible assets for the periods presented (dollars in thousands):
		Gross Carrying Value			Accumulated Amortization			Net Carrying Value		Weighted-Average Remaining Life (Years)
	27-Sep-14
	Indefinite lived intangibles	$	242		$	—		$	242	N/A
	Trademarks and trade names	4,908			(3,071		)	1,837		3.3
	Proprietary software	8,123			(3,359		)	4,764		5.3
	Website	50			(30		)	20		1.8
	Training materials	30			(17		)	13		1.3
	Non-compete agreements	141			(87		)	54		2.1
	Leasehold interests	170			(55		)	115		4.6
	Caregiver relationships	324			(234		)	90		0.9
	Customer relationships	8,890			(4,467		)	4,423		3
	Total	$	22,878		$	(11,320	)	$	11,558
	December 28, 2013:
	Indefinite lived intangibles	$	242		$	—		$	242	N/A
	Trademarks and trade names	4,561			(2,096		)	2,465		2.5
	Proprietary software	5,184			(2,952		)	2,232		3.5
	Website	50			(19		)	31		2.3
	Training materials	30			(10		)	20		2
	Non-compete agreements	148			(61		)	87		2.6
	Leasehold interests	170			(36		)	134		5.4
	Caregiver relationships	346			(164		)	182		1.6
	Customer relationships	8,953			(2,928		)	6,025		3.5
	Total	$	19,684		$	(8,266	)	$	11,418
	Amortization expense was $3.3 million and $4.6 million for the nine months ended September 27, 2014 and September 28, 2013, respectively. Of these amounts $2.6 million and $2.6 million was classified as a component of depreciation and amortization, and $0.7 million and $2.0 million was classified as a component of cost of revenue in the unaudited condensed consolidated statements of operations for the periods ended September 27, 2014 and September 28, 2013, respectively.
	As of September 27, 2014, the estimated future amortization expense related to current intangible assets for future fiscal years was as follows (in thousands):
	2014 (remaining)	$	1,179
	2015	4,141
	2016	2,480
	2017	1,051
	2018	706
	Thereafter	1,759
	Total	$	11,316

Commitments_and_Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 27, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	Commitments and Contingencies
	Facility Lease
	In July 2014, we entered into a lease agreement pursuant to which we agreed to lease office space to be used for our new headquarters (the “Prime Lease”). The Prime Lease is initially for 36,174 square feet of office space, comprising of the entire sixth floor of the building located at 77 CityPoint, 77 4th Avenue, Waltham, Massachusetts, or the Building. The leased premises under the Prime Lease will increase by an additional 36,395 square feet, comprising of the entire fourth floor of the Building, on March 1, 2019 and by an additional 36,174 square feet, comprising of the entire fifth floor of the Building, on April 1, 2019. The term of the Prime Lease commences on August 4, 2014 and expires 120 months from the date base rent payments first become due, which date is the earlier of January 1, 2015 and the date we commence operations in the space. We recorded deferred rent on the consolidated balance sheet. We recognize rent expense on a straight-line basis over the expected lease term. The total cash obligation for the base rent over the term of the Prime Lease will be $34.5 million.
	Also in July 2014, we entered into two sublease agreements pursuant to which we agreed to lease the entire fourth and fifth floors of the Building. The term of the fourth floor sublease commences on the earlier of January 1, 2015 and the date we commence operations in the space and expires on February 15, 2019, after which the space will be leased by us pursuant to the Prime Lease. The total cash obligation for the base rent over the term of this sublease will be $4.3 million. The term of the fifth floor sublease commence on January 1, 2015 and expires on March 30, 2019, after which the space will be leased by us pursuant to the Prime Lease. The lease commencement date for accounting purposes was determined to be August 4, 2014, which represents the date we received access to the fourth and fifth floors. The total cash obligation for the base rent over the term of this sublease will be $4.1 million. We have the right to extend the term of the lease agreement for one 10-year period.
	At September 27, 2014, minimum future lease commitments under all non-cancelable operating leases (including rent escalation clauses) are as follows (in thousands):
		Payments Due by Period
		Total		Less Than 1 Year		1-3 Years		4-5 Years		Thereafter
	Operating lease obligations	$	48.1	$	3.8	$	8.7	$	9.5	$	26.1
	We received $2.3 million as tenant improvements allowance under the terms of our new operating lease, which we recorded as deferred rent and amortized on a straight-line basis over the term of the lease as an offset to rent expense.
	In addition to the base rent, we will also be required to pay our pro rata share of any building operating expenses and real estate taxes in excess of the amounts allocable to the leased space as of the applicable base years referenced in the Prime Lease and subleases. In connection with the Prime Leases, we paid $2.8 million in security deposits recorded other non-current assets on our consolidated balance sheet as of September 24, 2014.
	In connection with the execution of the Prime Lease, we entered into an amendment to our lease agreement for our current headquarters pursuant to which that agreement will terminate without penalty on the earlier of (i) ten days after the date the we commence operations under the Prime Lease and (ii) December 31, 2014.
	We recognized total rent expense related to the current and new headquarters of approximately $0.8 million and $1.6 million for the three and nine months ended September 27, 2014, as compared to $0.4 million and $1.2 million for the three and nine months ended September 28, 2013.
	Capital Expenditure and Other Commitments:
	As of September 27, 2014, we had capital expenditure commitments totaling $4.2 million in connection with the relocation of our headquarters.
	Legal matters
	From time to time, we have or may become party to litigation incident to the ordinary course of business. We assess the likelihood of any adverse judgments or outcomes with respect to these matters and determine loss contingency assessments on a gross basis after assessing the probability of incurrence of a loss and whether a loss is reasonably estimable. In addition, we consider other relevant factors that could impact our ability to reasonably estimate a loss. A determination of the amount of reserves required, if any, for these contingencies is made after analyzing each matter. Our reserve may change in the future due to new developments or changes in strategy in handling these matters. Although the results of litigation and claims cannot be predicted with certainty, we currently believe that the final outcome of all pending matters will not have a material adverse effect on our business, consolidated financial position, results of operations, or cash flows. Regardless of the outcome, litigation can adversely impact us due to defense and settlement costs, diversion of management resources, and other factors.

Stockholders_Equity_Deficit

Stockholders' Equity (Deficit)	9 Months Ended
	Sep. 27, 2014
Statement of Stockholders' Equity [Abstract]	'
Stockholders' Equity (Deficit)	'
	Stockholders’ Equity (Deficit)
	Initial Public Offering
	On January 29, 2014, we closed our IPO in which we sold and issued 6,152,500 shares of common stock, including 802,500 shares of common stock pursuant to the exercise of the underwriters’ option to purchase additional shares, which were sold to the public at a price of $17.00 per share. We received net proceeds of approximately $95.2 million from the IPO, including the exercise of the underwriters’ over-allotment option, net of underwriters’ discounts and commissions, and after deducting offering expenses of approximately $2.1 million.
	Upon the closing of the IPO, all shares of our outstanding redeemable convertible preferred stock automatically converted into 21,490,656 shares of common stock and our outstanding warrant to purchase redeemable convertible preferred stock automatically converted into a warrant to purchase 40,697 shares of common stock at $1.72 per share.
	Common Stock
	As of September 27, 2014, we had reserved the following shares of common stock for future issuance in connection with the following (in thousands):
		September 27, 2014
	Contingent consideration payable in common stock	297
	Options issued and outstanding	4,691
	Options available for grant under stock option plans	2,755
	Total	7,743
	Preferred Stock Warrants
	In connection with a debt financing in 2007, we issued Lighthouse Capital Partners a warrant to purchase 40,697 shares of our Series A-1 convertible preferred stock at an exercise price of $1.72 per share, expiring October 2014, which were fully exercisable upon issuance. In conjunction with the closing of our IPO in January 2014, the warrant was automatically converted into a warrant exercisable for 40,697 shares of common stock at a purchase price of $1.72 per share, which resulted in the reclassification of the related convertible preferred stock warrant liability to additional paid-in capital as the warrant met the criteria for equity classification upon conversion to a warrant to purchase common stock. In accordance with ASC 480-10, Distinguishing Liabilities from Equity, the freestanding warrant for our preferred stock was recognized as a liability and recorded at fair value in all periods prior to its conversion into a warrant to purchase common stock. The warrant liability was re-measured to fair value prior to reclassification to additional paid-in capital. The warrant was exercised during the nine months ended September 27, 2014 using a net exercise method which resulted in the issuance of 38,142 shares of common stock. There were no proceeds received by us related to this transaction.
	Common Stock Warrants
	In connection with a 2010 Loan and Security Agreement, we issued a warrant to purchase a maximum of 40,000 shares of our common stock at an exercise price of $1.65 per share. The warrant was exercised during the nine months ended September 27, 2014 using a net exercise method which resulted in the issuance of 37,591 shares of common stock. There were no proceeds received by us related to this transaction.
	Stock Option Plans
	On November 15, 2006, we adopted our 2006 Stock Incentive Plan (‘‘the 2006 Plan’’), which provides for the issuance of incentive and non-qualified stock options, restricted stock and other stock-based awards to employees and non-employees of the Company. We reserved 4,567,500 shares of common stock for issuance under the 2006 Plan. Options generally vest over four years, with 25% vesting upon the one-year anniversary of the date of hire, and the remaining 75% vesting quarterly over the next three years. Options granted to consultants or other non-employees generally vest over the expected service period to the Company. The options expire ten years from the date of grant. We issue new shares to satisfy stock option exercises. Only stock options have been issued under the 2006 Plan. No grants have been made under the 2006 Plan since our IPO, and no further awards will be granted under the 2006 Plan. However, the 2006 Plan will continue to govern outstanding awards granted under the 2006 Plan.
	During 2010, we granted our Chief Executive Officer (“CEO”) a performance-based option to purchase 150,000 shares, which vests in tranches if defined corporate goals are achieved during fiscal years 2011 through 2014. We recorded a share-based compensation expense related to this award of $0.2 million during the nine months ended September 28, 2013. No stock based compensation expense related to this award was recorded in the nine months ended September 27, 2014, as it is currently not probable of vesting.
	On January 23, 2014, we adopted our 2014 Incentive Award Plan (‘‘the 2014 Plan’’), which provides for the issuance of incentive and non-qualified stock options, restricted stock and other stock-based awards to employees, directors and non-employees of the Company and our subsidiaries. We initially reserved 4,112,048 shares of common stock for issuance under the 2014 Plan. The number of shares initially available for issuance will be increased by (i) the number of shares represented by awards outstanding under the 2006 Plan that are forfeited, lapse unexercised or are settled in cash and which following the effective date of the 2014 Plan are not issued under the 2006 Plan and (ii) an annual increase on January 1 of each calendar year beginning in 2015 and ending in 2019, equal to the lesser of (A) 4% of the shares of common stock outstanding (on an as-converted basis) on the final day of the immediately preceding calendar year and (B) an amount as determined by our board of directors. No more than 5,002,935 shares of common stock may be issued upon the exercise of incentive stock options. Options generally vest over four years, with 25% vesting upon the one-year anniversary of the date of hire, and the remaining 75% vesting quarterly over the next three years. Options granted to consultants or other non-employees generally vest over the expected service period to the Company. The options expire ten years from the date of grant. To date only stock options have been issued under the 2014 Plan.
	We assumed certain other plans in connection with the Citrus Lane acquisition and no shares are available for future grant under these plans.
	Stock-Based Compensation
	A summary of stock option activity for the quarter ended September 27, 2014 was as follows (in thousands for shares and intrinsic value):
		Number of Shares			Weighted-Average Remaining Contractual Term (Years)		Weighted-Average Exercise Price			Aggregate Intrinsic Value
	Outstanding as of December 28, 2013	3,439			7.98		$	4.28		$	27,148
	Granted	1,466					11.78
	Canceled and forfeited	(124	)				10.11
	Exercised	(90	)				3.57
	Outstanding as of September 27, 2014	4,691			7.73		6.48			15,348
	Options vested and exercisable as of September 27, 2014	2,274			6.87		3.92			10,430
	Options vested and expected to vest as of September 27, 2014 (1)	4,591			7.7		$	6.4		$	15,196
	(1) Options expected to vest reflect an estimated forfeiture rate
	Aggregate intrinsic value represents the difference between the closing stock price of our common stock and the exercise price of outstanding, in-the-money options. Our closing stock price as reported on the NYSE as of September 27, 2014 was $8.20. The total intrinsic value of options exercised was approximately $0.1 million and $1.3 million for the three and nine months ended September 27, 2014, respectively. The weighted-average grant-date fair value of options granted was $7.53 and $8.04 for the three and nine months ended September 27, 2014, respectively. The aggregate fair value of the options that vested during the three and nine months ended September 27, 2014 was $1.1 million, and $2.7 million respectively.
	As of September 27, 2014, total unrecognized compensation cost, adjusted for estimated forfeitures, related to non-vested stock options was approximately $11.7 million, which is expected to be recognized over the next 2.6 years. As of September 27, 2014, we had 2,767,026, shares available for grant under the 2014 Plan.
	The following table presents the assumptions used to estimate the fair value of options granted during the periods presented:
		Nine Months Ended
		September 27,		September 28,
		2014		2013
	Risk-free interest rate	1.54 - 2.63%		1.23 - 2.65%
	Expected term (years)	6.25		6.25
	Volatility	46.9 - 55.3%		44.60%
	Expected dividend yield	—		—
	The following table summarizes stock-based compensation in our accompanying unaudited condensed consolidated statements of operations (in thousands):
		Three Months Ended							Nine Months Ended
		September 27,				September 28,			September 27,			September 28,
		2014				2013			2014			2013
	Cost of revenue	$	58			$	41		$	152		$	132
	Selling and marketing	255				92			564			265
	Research and development	222				76			426			195
	General and administrative	2,212				269			3,687			604
	Total stock-based compensation	$	2,747			$	478		$	4,829		$	1,196
	Included in stock based compensation expense is approximately $1.4 million related to the acceleration of vesting of certain equity awards assumed as part of the Citrus Lane acquisition.

Net_Loss_per_Share

Net Loss per Share	9 Months Ended
	Sep. 27, 2014
Earnings Per Share [Abstract]	'
Net Loss Per Share	'
	Net Loss Per Share
	Basic net loss per share is computed by dividing net loss attributable to common shareholders by the weighted-average number of common shares outstanding during the period. In the period ended September 28, 2013, the holders of our Series A, A-1, B, C, D, D-1and E redeemable convertible preferred stock did not have contractual obligations to share in or fund our losses. Diluted net loss per share attributable to common shareholders is computed by dividing net loss by the weighted-average number of common shares outstanding during the period and potentially dilutive common stock equivalents, except in cases where the effect of common stock equivalent would be anti-dilutive. Potential common stock equivalents consist of common stock issuable upon exercise of stock options and common stock issuable upon conversion of our redeemable convertible preferred stock and warrants to purchase our redeemable convertible preferred stock.
	The following table presents the calculation of basic and diluted net loss per share (in thousands, except per share data):
		Three Months Ended							Nine Months Ended
		September 27,				September 28,			September 27,			September 28,
		2014				2013			2014			2013
	Net Loss	$	(14,453	)		$	(11,732	)	$	(39,872	)	$	(24,665	)
	Accretion of preferred stock	—				(14		)	(4		)	(42		)
	Net loss attributable to common stockholders	$	(14,453	)		$	(11,746	)	$	(39,876	)	$	(24,707	)
	Net loss per share attributable to common stockholders:
	Basic and diluted	$	(0.46	)		$	(3.86	)	$	(1.42	)	$	(8.36	)
	Weighted-average shares used to compute net loss per share attributable to common stockholders:
	Basic and diluted	31,362				3,042			27,995			2,957
	The following equity shares were excluded from the calculation of diluted net loss per share attributable to common stockholders because their effect would have been anti-dilutive for the periods presented (in thousands):
		Three Months Ended						Nine Months Ended
		September 27,			September 28,			September 27,		September 28,
		2014			2013			2014		2013
	Redeemable convertible preferred stock	—			21,299			—		21,299
	Stock options	4,691			3,553			4,691		3,553
	Preferred stock warrants	—			41			—		41
	Common stock warrants	—			40			—		40

Income_Taxes

Income Taxes	9 Months Ended
	Sep. 27, 2014
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	Income Taxes
	We recorded an income tax benefit and expense of $1.2 million and $0.1 million for the three months ended September 27, 2014 and September 28, 2013, respectively. We recorded an income tax benefit and expense of $0.4 million and $0.6 million for the nine months ended September 27, 2014 and September 28, 2013, respectively.
	The tax benefit recorded in both the three and the nine months ended September 27, 2014, is primarily due to the income tax benefit related to the reversal of our valuation allowance against the Citrus Lane deferred tax liabilities recorded in purchase accounting, partially offset by the income tax expense related to the amortization of Breedlove goodwill for tax purposes for which there is no corresponding book deduction and certain state taxes based on operating income that are payable without regard to our tax loss carry forwards.
	The tax provision recorded in both the three and the nine months ended September 28, 2013 is primarily related to the amortization of goodwill for tax purposes for which there is no corresponding book deduction and certain state taxes based on operating income that are payable without regard to our tax loss carryforwards, partially offset by foreign deferred tax benefits, related to the expected future realization of German deferred tax assets expected to offset future reversal of deferred tax liabilities of definite lived intangibles established in purchase accounting.

Segment_and_Geographical_Infor

Segment and Geographical Information	9 Months Ended
	Sep. 27, 2014
Segment Reporting [Abstract]	'
Segment and Geographical Information	'
	Segment and Geographical Information
	We consider operating segments to be components of the Company in which separate financial information is available that is evaluated regularly by our chief operating decision maker in deciding how to allocate resources and in assessing performance. Our chief operating decision maker is the CEO. The CEO reviews financial information presented on a consolidated basis for purposes of allocating resources and evaluating financial performance. Accordingly, we have determined that we have a single operating and reportable segment. No country outside of the United States provided greater than 10% of our total revenue. Revenue is classified by the major geographic areas in which our customers are located. The following table summarizes total revenue generated by our geographic locations (dollars in thousands):
		Three Months Ended							Nine Months Ended
		September 27,			September 28,				September 27,			September 28,
		2014			2013				2014			2013
	United States	$	29,450		$	19,940			$	76,223		$	54,086
	International	2,604			1,741				6,938			4,890
	Total revenue	$	32,054		$	21,681			$	83,161		$	58,976
		Three Months Ended					Nine Months Ended
		September 27,		September 28,			September 27,			September 28,
		2014		2013			2014			2013
		(As a percentage of revenue)					(As a percentage of revenue)
	United States	92	%	92	%		92	%		92	%
	International	8	%	8	%		8	%		8	%
	Total revenue	100	%	100	%		100	%		100	%
	Our long-lived assets are primarily located in the United States and not allocated to any specific region. Therefore, geographic information is presented only for total revenue.

Other_Expense_Net

Other Expense, Net	9 Months Ended
	Sep. 27, 2014
Other Income and Expenses [Abstract]	'
Other Expense, Net	'
	Other Expense, Net
	Other expense, net consisted of the following (in thousands):
		Three Months Ended						Nine Months Ended
		September 27,			September 28,			September 27,			September 28,
		2014			2013			2014			2013
	Interest income	$	21		$	8		$	67		$	39
	Interest expense	(12		)	(91		)	(29		)	(93		)
	Other expense, net	(653		)	(118		)	(3,361		)	(264		)
	Total other expense, net	$	(644	)	$	(201	)	$	(3,323	)	$	(318	)

Description_of_Business_and_Su1

Description of Business and Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 27, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Certain Significant Risks and Uncertainties	'
	Certain Significant Risks and Uncertainties
	We operate in a dynamic industry and, accordingly, our business is affected by a variety of factors. For example, we believe that changes in any of the following areas could have a significant negative effect on our future financial position, results of operations or cash flows: rates of revenue growth; engagement and usage of our products; scaling and adaptation of existing technology and network infrastructure; competition in our market; management of our growth; acquisitions and investments; qualified employees and key personnel; protection of our brand and intellectual property; protection of customers’ information and privacy concerns; and security measures related to our website, among other things.
Basis of Presentation	'
	Basis of Presentation
	The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in our Annual Report on Form 10-K for the fiscal year ended December 28, 2013, filed on March 6, 2014.
	The consolidated balance sheet as of December 28, 2013, included herein was derived from the audited financial statements as of that date, but does not include all disclosures including notes required by GAAP on an annual reporting basis.
	In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, and cash flows for the interim periods, and are not necessarily indicative of the results of operations to be anticipated for Fiscal 2014 or any future period.
Principles of Consolidation	'
	Principles of Consolidation
	The accompanying unaudited condensed consolidated financial statements include the accounts of the Company and our wholly owned subsidiaries, after elimination of all intercompany balances and transactions.
Fiscal Year-End	'
	Fiscal Year-End
	For periods prior to Fiscal 2013, we operated and reported on a calendar basis fiscal year. Beginning in the third quarter of Fiscal 2013, we operate and report using a 52 or 53 week fiscal year ending on the Saturday in December closest and prior to December 31. Accordingly, our fiscal quarters end on the Saturday that falls closest to the last day of the third month of each quarter.
Use of Estimates	'
	Use of Estimates
	The preparation of our unaudited condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of income and expenses during the reporting period. On an ongoing basis, we evaluate our estimates, including those related to accounts receivable and revenue allowances, the useful lives of long-lived assets including property and equipment, intangible assets, valuation of common and preferred stock and warrants to purchase preferred stock, fair value of stock-based awards, goodwill, income taxes, contingent consideration, and contingencies. We base our estimates of the carrying value of certain assets and liabilities on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, when these carrying values are not readily available from other sources. These estimates are based on information available as of the date of the condensed consolidated financial statements; therefore, actual results could differ from the estimates.
Revenue Recognition	'
	Revenue Recognition
	In general, we recognize revenue when (i) persuasive evidence of an arrangement exists, (ii) delivery has occurred or services have been rendered to the customer, (iii) the fee is fixed or determinable, and (iv) collectability is reasonably assured. We derive our revenue primarily from on-going subscription fees. Revenue from subscription fees is recognized on a daily basis over the subscription term or on a pro-rata basis as the services are delivered. Revenue from background checks, lead generation and advertising is recognized in the period earned. For product sales, these criteria are deemed to have been met when the items are delivered to the end customer. Other service revenues are recognized as the services are performed.
	Certain of our arrangements provide companies the opportunity to purchase Care.com services on behalf of their employees. These arrangements typically include a subscription to our consumer matching solutions for their employees. These arrangements are accounted for as multiple element arrangements. We have concluded that each element in the arrangement has stand-alone value as the individual services can be sold separately. In addition, there is no right of refund once a service has been delivered. Therefore, we have concluded each element of the arrangement is a separate unit of accounting. In accordance with authoritative guidance on revenue recognition, we allocate consideration at the inception of an arrangement to each unit of accounting based on the relative selling price method in accordance with the selling price hierarchy. The objective of the hierarchy is to determine the price at which we would transact a sale if the service were sold on a stand-alone basis, and requires the use of: (1) vendor-specific objective evidence (‘‘VSOE’’), if available; (2) third-party evidence (‘‘TPE’’), if VSOE is not available; and (3) best estimate of selling price (‘‘BESP’’), if neither VSOE nor TPE is available. Since VSOE or TPE are not typically available, BESP is generally used to allocate the selling price to each unit of accounting. We determine BESP for units of account by considering multiple factors including, but not limited to, prices we charge for similar offerings, sales volumes, geographies and other factors contemplated in negotiating multiple element transactions.
Inventories and Goods In-Transit	'
	Inventories
	Inventories consist of finished goods comprised of product for resale and are stated at the lower of cost or market, and are valued on a first-in, first-out (FIFO) basis. Inventory costs primarily consist of product costs from suppliers, as well as inbound shipping and handling fees. The majority of our inventory is not purchased until we receive a customer order and it is subsequently relieved from inventories when delivered to the customer. As of September 27, 2014, our inventory balance of $2.1 million consists of finished goods.
	Goods In-Transit
	Goods in-transit directly from suppliers to customers are recorded in prepaid expenses and other current assets. Risk of loss and the transfer of title from the supplier to us occurs at freight on board shipping point. As of September 27, 2014, goods in-transit were immaterial.
Subsequent Events Consideration	'
	Subsequent Events Consideration
	We consider events or transactions that occur after the balance sheet date but prior to the issuance of the financial statements to provide additional evidence for certain estimates or to identify matters that require additional disclosure. Subsequent events have been evaluated as required. There were no material recognized subsequent events recorded in the unaudited condensed consolidated financial statements as of and for the nine months ended September 27, 2014
Recently Issued and Adopted Accounting Pronouncements	'
	Recently Issued and Adopted Accounting Pronouncements
	In August 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update No. 2014-15, "Presentation of Financial Statements - Going Concern", which requires management to evaluate, at each annual and interim reporting period, whether there are conditions or events that raise substantial doubt about the entity’s ability to continue as a going concern within one year after the date the financial statements are issued and provide related disclosures.  ASU 2014-15 is effective for annual periods ending after December 15, 2016 and interim periods thereafter.  Early application is permitted.  The adoption of ASU 2014-15 is not expected to have a material effect on our condensed consolidated financial statements or disclosures.
	In May 2014, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers”, which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. ASU 2014-09 will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. The new standard is effective for us in our fiscal year 2018. Early application is not permitted. We are evaluating the effect that ASU 2014-09 will have on our consolidated financial statements and related disclosures. The standard permits the use of either the retrospective or cumulative effect transition method. We have not yet selected a transition method nor have we determined the effect of the standard on our ongoing financial reporting.
	In April 2014, the FASB issued ASU No. 2014-08, “Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity” to reduce diversity in practice for reporting discontinued operations. Under the previous guidance, any component of an entity that was a reportable segment, an operating segment, a reporting unit, a subsidiary, or an asset group was eligible for discontinued operations presentation. The revised guidance only allows disposals of components of an entity that represent a strategic shift (e.g., disposal of a major geographical area, a major line of business, a major equity method investment, or other major parts of an entity) and that have a major effect on a reporting entity’s operations and financial results to be reported as discontinued operations. The revised guidance also requires expanded disclosure in the financial statements for discontinued operations as well as for disposals of significant components of an entity that do not qualify for discontinued operations presentation. The updated guidance is effective for periods beginning after December 15, 2014. We currently do not have operations that are reported as discontinued operations and do not expect the adoption of this guidance to have a material effect on our financial position, results of operations, or cash flows.
	In July 2013, the FASB issued ASU No. 2013-11, "Income Taxes (Topic740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carry forward, a Similar Tax Loss, or a Tax Credit Carry forward Exists (a consensus of the FASB Emerging Issues Task Force)." ASU 2013-11 states that an unrecognized tax benefit, or a portion of an unrecognized tax benefit, should be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carry forward, a similar tax loss, or a tax credit carry forward, except in certain situations. ASU 2013-11 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. Early adoption and retrospective application are permitted. The amendments should be applied prospectively to all unrecognized tax benefits that exist at the effective date. The adoption of this amendment did not have a material impact on our condensed consolidated financial statements.

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 27, 2014
Fair Value Disclosures [Abstract]	'
Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis	'
	The following table presents information about our assets and liabilities measured at fair value on a recurring basis as of September 27, 2014 and December 28, 2013 and indicates the fair value hierarchy of the valuation techniques we utilized to determine such fair value (in thousands):
		September 27, 2014										December 28, 2013
		Fair Value Measurements Using Input Types										Fair Value Measurements Using Input Types
		Level 1			Level 2			Level 3		Total		Level 1		Level 2		Level 3		Total
	Assets:
	Money market mutual funds	$	58,824		$	—		$	—	$	58,824	$	15,085	$	—	$	—	$	15,085
	Total assets	$	58,824		$	—		$	—	$	58,824	$	15,085	$	—	$	—	$	15,085
	Liabilities:
	Contingent acquisition consideration	$	—		$	—		$	18,192	$	18,192	$	—	$	—	$	10,630	$	10,630
	Preferred stock warrants	—			—			—		—		—		—		362		362
	Total liabilities	$	—		$	—		$	18,192	$	18,192	$	—	$	—	$	10,992	$	10,992
Schedule of Changes in Fair Value of Plan Assets	'
	The following table sets forth a summary of changes in the fair value of our contingent acquisition consideration and preferred stock warrants which represent recurring measurements that are classified within Level 3 of the fair value hierarchy wherein fair value is estimated using significant unobservable inputs (in thousands):
		September 27, 2014						December 28, 2013
		Contingent Acquisition			Preferred Stock Warrants			Contingent Acquisition		Preferred Stock Warrants
		Consideration						Consideration
	Beginning balance	$	10,630		$	362		$	9,288	$	247
	Contingent consideration liability recorded in connection with Citrus Lane acquisition	15,245			—			—		—
	Increase in fair value included in earnings	2,663			606			1,342		115
	Reclassification to permanent equity	(4,878		)	(968		)	—		—
	Contingent acquisition consideration payments	(5,468		)	—			—		—
	Ending balance	$	18,192		$	—		$	10,630	$	362

Business_Acquisitions_Tables

Business Acquisitions (Tables)	9 Months Ended
	Sep. 27, 2014
Business Combinations [Abstract]	'
Recognized Identified Assets Acquired	'
	A summary of the preliminary purchase price allocation for the acquisition of Citrus Lane is as follows (in thousands):
	Total purchase consideration
	Cash	$	22,881
	Fair value of common stock	3,844
	Fair value of contingent acquisition consideration	16,344
	Fair value of stock options exchanged	1,026
	Total purchase price	$	44,095
	Allocation of the purchase consideration
	Tangible assets	$	2,760
	Liabilities assumed	(4,089		)
	Identifiable intangible assets	3,500
	Deferred tax liabilities	(1,449		)
	Goodwill	43,373
	Total purchase price allocation	$	44,095
Schedule of Finite-Lived Intangible Assets Acquired	'
	The estimated fair values for specifically identifiable intangible assets acquired are as follows (in thousands):
					Weighted-average amortization period
					(in years)
	Proprietary software	$	3,100		7
	Trade-names	400			8
	Total purchase price	$	3,500
Pro Forma Information	'
	The pro forma financial information does not reflect any adjustments for anticipated synergies resulting from the acquisition and is not necessarily indicative of the operating results that would have actually occurred had the transaction been consummated on January 1, 2013.
		Pro Forma
		Three Months Ended						Nine Months Ended
		27-Sep-14			28-Sep-13			27-Sep-14			28-Sep-13
	(in thousands)
	Revenue	$	37,069		$	23,437		$	88,176		$	62,536
	Net loss	$	(17,682	)	$	(13,753	)	$	(43,101	)	$	(29,829	)

Supplemental_Balance_Sheet_Inf1

Supplemental Balance Sheet Information (Tables)	9 Months Ended
	Sep. 27, 2014
Statement of Financial Position [Abstract]	'
Property, Plant and Equipment	'
	The following table presents the detail of property and equipment, net for the periods presented (in thousands):
		September 27,			December 28,
		2014			2013
	Computer equipment	$	1,769		$	1,444
	Furniture and fixtures	1,365			1,154
	Software	456			199
	Leasehold improvements	343			183
	Total	3,933			2,980
	Less accumulated depreciation	(2,087		)	(1,427		)
	Property and equipment, net	$	1,846		$	1,553
Schedule of Accrued Liabilities	'
	The following table presents the detail of accrued expenses and other current liabilities for the periods presented (in thousands):
		September 27,			December 28,
		2014			2013
	Payroll and compensation	$	1,875		$	3,134
	Tax-related expense	1,102			372
	Marketing expenses	10,303			1,028
	Other accrued expenses	3,564			2,489
	Total accrued expenses and other current liabilities	$	16,844		$	7,023

Goodwill_and_Intangible_Assets1

Goodwill and Intangible Assets (Tables)	9 Months Ended
	Sep. 27, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Schedule of Goodwill	'
	The following table presents the change in goodwill for the periods presented (in thousands):
	Balance as of December 28, 2013	$	62,686
	Citrus Lane acquisition	43,373
	Consmr acquisition	488
	Effect of currency translation	(1,675		)
	Balance as of September 27, 2014	$	104,872
Schedule of Finite-Lived Intangible Assets	'
	The following table presents the detail of intangible assets for the periods presented (dollars in thousands):
		Gross Carrying Value			Accumulated Amortization			Net Carrying Value		Weighted-Average Remaining Life (Years)
	27-Sep-14
	Indefinite lived intangibles	$	242		$	—		$	242	N/A
	Trademarks and trade names	4,908			(3,071		)	1,837		3.3
	Proprietary software	8,123			(3,359		)	4,764		5.3
	Website	50			(30		)	20		1.8
	Training materials	30			(17		)	13		1.3
	Non-compete agreements	141			(87		)	54		2.1
	Leasehold interests	170			(55		)	115		4.6
	Caregiver relationships	324			(234		)	90		0.9
	Customer relationships	8,890			(4,467		)	4,423		3
	Total	$	22,878		$	(11,320	)	$	11,558
	December 28, 2013:
	Indefinite lived intangibles	$	242		$	—		$	242	N/A
	Trademarks and trade names	4,561			(2,096		)	2,465		2.5
	Proprietary software	5,184			(2,952		)	2,232		3.5
	Website	50			(19		)	31		2.3
	Training materials	30			(10		)	20		2
	Non-compete agreements	148			(61		)	87		2.6
	Leasehold interests	170			(36		)	134		5.4
	Caregiver relationships	346			(164		)	182		1.6
	Customer relationships	8,953			(2,928		)	6,025		3.5
	Total	$	19,684		$	(8,266	)	$	11,418
Schedule of Indefinite-Lived Intangible Assets	'
	The following table presents the detail of intangible assets for the periods presented (dollars in thousands):
		Gross Carrying Value			Accumulated Amortization			Net Carrying Value		Weighted-Average Remaining Life (Years)
	27-Sep-14
	Indefinite lived intangibles	$	242		$	—		$	242	N/A
	Trademarks and trade names	4,908			(3,071		)	1,837		3.3
	Proprietary software	8,123			(3,359		)	4,764		5.3
	Website	50			(30		)	20		1.8
	Training materials	30			(17		)	13		1.3
	Non-compete agreements	141			(87		)	54		2.1
	Leasehold interests	170			(55		)	115		4.6
	Caregiver relationships	324			(234		)	90		0.9
	Customer relationships	8,890			(4,467		)	4,423		3
	Total	$	22,878		$	(11,320	)	$	11,558
	December 28, 2013:
	Indefinite lived intangibles	$	242		$	—		$	242	N/A
	Trademarks and trade names	4,561			(2,096		)	2,465		2.5
	Proprietary software	5,184			(2,952		)	2,232		3.5
	Website	50			(19		)	31		2.3
	Training materials	30			(10		)	20		2
	Non-compete agreements	148			(61		)	87		2.6
	Leasehold interests	170			(36		)	134		5.4
	Caregiver relationships	346			(164		)	182		1.6
	Customer relationships	8,953			(2,928		)	6,025		3.5
	Total	$	19,684		$	(8,266	)	$	11,418
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	'
	As of September 27, 2014, the estimated future amortization expense related to current intangible assets for future fiscal years was as follows (in thousands):
	2014 (remaining)	$	1,179
	2015	4,141
	2016	2,480
	2017	1,051
	2018	706
	Thereafter	1,759
	Total	$	11,316

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	9 Months Ended
	Sep. 27, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Schedule of Future Minimum Lease Payments for Capital Leases	'
	At September 27, 2014, minimum future lease commitments under all non-cancelable operating leases (including rent escalation clauses) are as follows (in thousands):
		Payments Due by Period
		Total		Less Than 1 Year		1-3 Years		4-5 Years		Thereafter
	Operating lease obligations	$	48.1	$	3.8	$	8.7	$	9.5	$	26.1

Stockholders_Equity_Deficit_Ta

Stockholders' Equity (Deficit) (Tables)	9 Months Ended
	Sep. 27, 2014
Statement of Stockholders' Equity [Abstract]	'
Schedule of Stock by Class	'
	As of September 27, 2014, we had reserved the following shares of common stock for future issuance in connection with the following (in thousands):
		September 27, 2014
	Contingent consideration payable in common stock	297
	Options issued and outstanding	4,691
	Options available for grant under stock option plans	2,755
	Total	7,743
Schedule of Share-based Payment Award, Stock Options, Valuation Assumption	'
	The following table presents the assumptions used to estimate the fair value of options granted during the periods presented:
		Nine Months Ended
		September 27,		September 28,
		2014		2013
	Risk-free interest rate	1.54 - 2.63%		1.23 - 2.65%
	Expected term (years)	6.25		6.25
	Volatility	46.9 - 55.3%		44.60%
	Expected dividend yield	—		—
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award	'
	The following table summarizes stock-based compensation in our accompanying unaudited condensed consolidated statements of operations (in thousands):
		Three Months Ended					Nine Months Ended
		September 27,			September 28,		September 27,		September 28,
		2014			2013		2014		2013
	Cost of revenue	$	58		$	41	$	152	$	132
	Selling and marketing	255			92		564		265
	Research and development	222			76		426		195
	General and administrative	2,212			269		3,687		604
	Total stock-based compensation	$	2,747		$	478	$	4,829	$	1,196
	Included in stock based compensation expense is approximately $1.4 million related to the acceleration of vesting of certain equity awards assumed as part of the Citrus Lane acquisition.

Net_Loss_per_Share_Tables

Net Loss per Share (Tables)	9 Months Ended
	Sep. 27, 2014
Earnings Per Share [Abstract]	'
Schedule of Earnings Per Share, Basic and Diluted	'
	The following table presents the calculation of basic and diluted net loss per share (in thousands, except per share data):
		Three Months Ended							Nine Months Ended
		September 27,				September 28,			September 27,			September 28,
		2014				2013			2014			2013
	Net Loss	$	(14,453	)		$	(11,732	)	$	(39,872	)	$	(24,665	)
	Accretion of preferred stock	—				(14		)	(4		)	(42		)
	Net loss attributable to common stockholders	$	(14,453	)		$	(11,746	)	$	(39,876	)	$	(24,707	)
	Net loss per share attributable to common stockholders:
	Basic and diluted	$	(0.46	)		$	(3.86	)	$	(1.42	)	$	(8.36	)
	Weighted-average shares used to compute net loss per share attributable to common stockholders:
	Basic and diluted	31,362				3,042			27,995			2,957
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	'
	The following equity shares were excluded from the calculation of diluted net loss per share attributable to common stockholders because their effect would have been anti-dilutive for the periods presented (in thousands):
		Three Months Ended						Nine Months Ended
		September 27,			September 28,			September 27,		September 28,
		2014			2013			2014		2013
	Redeemable convertible preferred stock	—			21,299			—		21,299
	Stock options	4,691			3,553			4,691		3,553
	Preferred stock warrants	—			41			—		41
	Common stock warrants	—			40			—		40

Segment_and_Geographical_Infor1

Segment and Geographical Information (Tables)	9 Months Ended
	Sep. 27, 2014
Segment Reporting [Abstract]	'
Schedule of Revenue by Geographic Location	'
	The following table summarizes total revenue generated by our geographic locations (dollars in thousands):
		Three Months Ended							Nine Months Ended
		September 27,			September 28,				September 27,			September 28,
		2014			2013				2014			2013
	United States	$	29,450		$	19,940			$	76,223		$	54,086
	International	2,604			1,741				6,938			4,890
	Total revenue	$	32,054		$	21,681			$	83,161		$	58,976
		Three Months Ended					Nine Months Ended
		September 27,		September 28,			September 27,			September 28,
		2014		2013			2014			2013
		(As a percentage of revenue)					(As a percentage of revenue)
	United States	92	%	92	%		92	%		92	%
	International	8	%	8	%		8	%		8	%
	Total revenue	100	%	100	%		100	%		100	%

Other_Expense_Net_Tables

Other Expense, Net (Tables)	9 Months Ended
	Sep. 27, 2014
Other Income and Expenses [Abstract]	'
Schedule of Other Expense, Net	'
	Other expense, net consisted of the following (in thousands):
		Three Months Ended						Nine Months Ended
		September 27,			September 28,			September 27,			September 28,
		2014			2013			2014			2013
	Interest income	$	21		$	8		$	67		$	39
	Interest expense	(12		)	(91		)	(29		)	(93		)
	Other expense, net	(653		)	(118		)	(3,361		)	(264		)
	Total other expense, net	$	(644	)	$	(201	)	$	(3,323	)	$	(318	)

Description_of_Business_and_Su2

Description of Business and Summary of Significant Accounting Policies (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 27, 2014
Entity Information [Line Items]	'
Inventory, Finished Goods, Gross	2.1
Minimum	'
Entity Information [Line Items]	'
Fiscal Period Duration	'364 days
Maximum	'
Entity Information [Line Items]	'
Fiscal Period Duration	'371 days

Fair_Value_Measurements_Additi

Fair Value Measurements - Additional Information (Details) (USD $)	9 Months Ended				0 Months Ended	9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013	Jul. 17, 2014	Sep. 27, 2014
			PIAP	PIAP	Citrus Lane Inc	Citrus Lane Inc
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'	'	'	'
Incremental expense	$404,000	$423,000	$0	$600,000	$200,000	$17,500,000

Fair_Value_Measurements_Schedu

Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) (USD $)	Sep. 27, 2014	Dec. 28, 2013
In Thousands, unless otherwise specified
Level 1	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'
Total assets	$58,824	$15,085
Total liabilities	0	0
Level 1 | Contingent acquisition consideration	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'
Contingent acquisition consideration	0	0
Level 1 | Preferred stock warrants	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'
Preferred stock warrants	0	0
Level 1 | Money market mutual funds	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'
Money market mutual funds	58,824	15,085
Level 2	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'
Total assets	0	0
Total liabilities	0	0
Level 2 | Contingent acquisition consideration	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'
Contingent acquisition consideration	0	0
Level 2 | Preferred stock warrants	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'
Preferred stock warrants	0	0
Level 2 | Money market mutual funds	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'
Money market mutual funds	0	0
Level 3	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'
Total assets	0	0
Total liabilities	18,192	10,992
Level 3 | Contingent acquisition consideration	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'
Contingent acquisition consideration	18,192	10,630
Level 3 | Preferred stock warrants	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'
Preferred stock warrants	0	362
Level 3 | Money market mutual funds	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'
Money market mutual funds	0	0
Total	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'
Total assets	58,824	15,085
Total liabilities	18,192	10,992
Total | Contingent acquisition consideration	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'
Contingent acquisition consideration	18,192	10,630
Total | Preferred stock warrants	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'
Preferred stock warrants	0	362
Total | Money market mutual funds	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'
Money market mutual funds	$58,824	$15,085

Fair_Value_Measurements_Schedu1

Fair Value Measurements - Schedule of Changes in Fair Value of Plan Assets (Details) (USD $)	9 Months Ended		12 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Dec. 28, 2013
Contingent acquisition consideration	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'
Contingent Consideration, Incremental Expense Recognized	$15,245,000	$0	'
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'
Beginning balance	9,288,000	'	'
Increase in fair value included in earnings	2,663,000	'	1,342,000
Reclassification to permanent equity	-4,878,000	'	0
Contingent acquisition consideration payments	-5,468,000	'	'
Ending balance	18,192,000	'	9,288,000
Preferred stock warrants	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'
Contingent Consideration, Incremental Expense Recognized	0	0	'
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'
Beginning balance	247,000	'	'
Increase in fair value included in earnings	606,000	'	115,000
Reclassification to permanent equity	-968,000	'	0
Ending balance	$0	'	$247,000

Business_Acquisitions_Details

Business Acquisitions (Details) (USD $)

3 Months Ended

9 Months Ended

0 Months Ended

3 Months Ended

9 Months Ended

9 Months Ended

0 Months Ended

Share data in Millions, unless otherwise specified

Sep. 27, 2014

Sep. 28, 2013

Sep. 27, 2014

Sep. 28, 2013

Jul. 17, 2014

Sep. 27, 2014

Sep. 27, 2014

Jul. 17, 2014

Jul. 17, 2014

Sep. 26, 2015

Jul. 17, 2014

Mar. 03, 2014

Citrus Lane Inc

Citrus Lane Inc

Citrus Lane Inc

Citrus Lane Inc

Citrus Lane Inc

Citrus Lane Inc

Citrus Lane Inc

Consumr

Earn Out Payment [Member]

Earn Out Payment [Member]

Based Solely on Individual [Member]

Scenario, Forecast [Member]

Business Acquisition [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Cash consideration

'

'

'

'

$22,881,000

'

'

'

'

'

'

'

Equity consideration, shares

'

'

'

'

0.4

'

'

'

'

'

'

'

Equity consideration, value

'

'

'

'

'

'

'

3,800,000

'

'

'

'

Cash consideration, contingent amount

'

'

'

'

16,400,000

'

'

'

'

'

'

'

Cash consideration, contingent amount, fair value

'

'

'

'

'

'

'

15,200,000

'

'

'

'

Equity consideration, contingent amount, shares

'

'

'

'

0.1

'

'

'

'

'

'

'

Equity consideration, contingent amount, value

'

'

'

'

1,100,000

'

'

'

'

'

'

'

Consideration transferred

'

'

'

'

16,344,000

'

'

'

'

'

'

600,000

Purchase Price held back

'

'

'

'

'

'

'

'

'

'

'

100,000

Period for Recognition

'

'

'

'

'

'

'

'

'

'

'

'1 year

Business Combination, Potential Earn Out Payment

'

'

'

'

'

'

'

'

'

8,200,000

'

'

Contingent acquisition consideration

'

'

'

'

'

'

'

15,200,000

'

'

'

'

Contingent consideration expense

'

'

404,000

423,000

200,000

'

17,500,000

'

'

'

'

'

Employee Bonus Pool

'

'

'

'

'

'

'

1,400,000

300,000

'

1,100,000

'

Compensation

'

'

'

'

'

'

200,000

'

'

'

'

'

Consideration, Payment in Equity

'

'

'

'

1,000,000

'

'

'

'

'

'

'

Business Acquisition, Transaction Costs

'

'

'

'

'

'

'

1,800,000

'

'

'

'

Escrow Deposit

'

'

'

'

'

'

'

5,000,000

'

'

'

'

Net Income (Loss) Attributable to Parent

-14,453,000

-11,732,000

-39,872,000

-24,665,000

'

2,400,000

'

'

'

'

'

'

Revenue

$32,054,000

$21,681,000

$83,161,000

$58,976,000

'

$2,500,000

'

'

'

'

'

'

Fair Value Inputs, Discount Rate

'

'

'

'

'

'

18.40%

'

'

'

'

'

Business_Acquisitions_purchase

Business Acquisitions purchase price allocation (Details) (USD $)	Sep. 27, 2014	Dec. 28, 2013	Jul. 17, 2014	Jul. 17, 2014	Jul. 17, 2014	Jul. 17, 2014
In Thousands, unless otherwise specified			Citrus Lane Inc	Citrus Lane Inc	Citrus Lane Inc	Stock Options
					Common Stock	Citrus Lane Inc
Business Acquisition [Line Items]	'	'	'	'	'	'
Consideration, Payment in Cash	'	'	$22,881	'	'	'
Consideration, Payment in Equity	'	'	1,000	'	3,844	1,026
Consideration transferred	'	'	16,344	'	'	'
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	'	'	'	2,760	'	'
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	'	'	'	-4,089	'	'
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	'	'	'	3,500	'	'
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent	'	'	'	-1,449	'	'
Goodwill	104,872	62,686	'	43,373	'	'
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	'	'	'	$44,095	'	'

Business_Acquisitions_fair_val

Business Acquisitions fair value assumptions (Details) (Stock Options, USD $)	9 Months Ended		0 Months Ended
In Millions, except Per Share data, unless otherwise specified	Sep. 27, 2014	Sep. 28, 2013	Jul. 31, 2014
			Citrus Lane Inc
Business Acquisition [Line Items]	'	'	'
Fair Value Assumptions, Value	'	'	$2.30
Period for Recognition	'	'	'2 years 7 months 6 days
Risk-free interest rate	'	'	1.80%
Volatility	55.30%	'	49.40%
Expected Term (years)	'	'	'5 years 4 months 24 days
Expected Dividend Rate	0.00%	0.00%	0.00%
Weighted Average Grant Date Fair Value	'	'	$9.34

Business_Acquisitions_identifi

Business Acquisitions identifiable intangible assets acquired (Details) (Citrus Lane Inc, USD $)	0 Months Ended
	Jul. 17, 2014	Jul. 17, 2014
Business Acquisition [Line Items]	'	'
Purchase price, identifiable intangible assets	$3,500	$3,500
Proprietary Software [Member]	'	'
Business Acquisition [Line Items]	'	'
Purchase price, identifiable intangible assets	'	3,100
Weighted-average amortization period (in years)	'7 years	'
Trade Names [Member]	'	'
Business Acquisition [Line Items]	'	'
Purchase price, identifiable intangible assets	'	$400
Weighted-average amortization period (in years)	'8 years	'

Business_Acquisitions_pro_form

Business Acquisitions pro forma (Details) (Citrus Lane Inc, USD $)	3 Months Ended		9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013
Citrus Lane Inc	'	'	'	'
Business Acquisition [Line Items]	'	'	'	'
Business Acquisition, Pro Forma Revenue	$37,069	$23,437	$88,176	$62,536
Business Acquisition, Pro Forma Net Income (Loss)	($17,682)	($13,753)	($43,101)	($29,829)

Supplemental_Balance_Sheet_Inf2

Supplemental Balance Sheet Information (Property, Plant and Equipment) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013	Dec. 28, 2013
Property, Plant and Equipment [Line Items]	'	'	'	'	'
Total	$3,933,000	'	$3,933,000	'	$2,980,000
Less accumulated depreciation	-2,087,000	'	-2,087,000	'	-1,427,000
Property and equipment, net	1,846,000	'	1,846,000	'	1,553,000
Depreciation expense	200,000	200,000	600,000	500,000	'
Computer equipment	'	'	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'	'	'
Total	1,769,000	'	1,769,000	'	1,444,000
Furniture and fixtures	'	'	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'	'	'
Total	1,365,000	'	1,365,000	'	1,154,000
Software	'	'	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'	'	'
Total	456,000	'	456,000	'	199,000
Leasehold improvements	'	'	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'	'	'
Total	$343,000	'	$343,000	'	$183,000

Supplemental_Balance_Sheet_Inf3

Supplemental Balance Sheet Information (Accrued Liabilities) (Details) (USD $)	Sep. 27, 2014	Dec. 28, 2013
In Thousands, unless otherwise specified
Statement of Financial Position [Abstract]	'	'
Payroll and compensation	$1,875	$3,134
Tax-related expense	1,102	372
Marketing expenses	10,303	1,028
Other accrued expenses	3,564	2,489
Accrued expenses and other current liabilities	$16,844	$7,023

Goodwill_and_Intangible_Assets2

Goodwill and Intangible Assets (Change in Goodwill) (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 27, 2014
Goodwill [Roll Forward]	'
Balance as of December 28, 2013	$62,686
Citrus Lane acquisition	43,373
Effect of currency translation	-1,675
27-Sep-14	$104,872

Goodwill_and_Intangible_Assets3

Goodwill and Intangible Assets (Intangible Assets) (Details) (USD $)

9 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

12 Months Ended

Sep. 27, 2014

Sep. 28, 2013

Dec. 28, 2013

Sep. 27, 2014

Sep. 28, 2013

Sep. 27, 2014

Sep. 28, 2013

Sep. 27, 2014

Dec. 28, 2013

Sep. 27, 2014

Dec. 28, 2013

Sep. 27, 2014

Dec. 28, 2013

Sep. 27, 2014

Dec. 28, 2013

Sep. 27, 2014

Dec. 28, 2013

Sep. 27, 2014

Dec. 28, 2013

Sep. 27, 2014

Dec. 28, 2013

Sep. 27, 2014

Dec. 28, 2013

Depreciation and Amortization

Depreciation and Amortization

Cost of Sales

Cost of Sales

Trademarks and trade names

Trademarks and trade names

Proprietary software

Proprietary software

Website

Website

Training materials

Training materials

Non-compete agreements

Non-compete agreements

Leasehold interests

Leasehold interests

Caregiver relationships

Caregiver relationships

Customer relationships

Customer relationships

Goodwill and Intangible Assets Disclosure [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Indefinite lived intangibles

$242,000

'

$242,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Finite-Lived Intangible Assets [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gross Carrying Value

'

'

'

'

'

'

'

4,908,000

4,561,000

8,123,000

5,184,000

50,000

50,000

30,000

30,000

141,000

148,000

170,000

170,000

324,000

346,000

8,890,000

8,953,000

Accumulated Amortization

-11,320,000

'

-8,266,000

'

'

'

'

-3,071,000

-2,096,000

-3,359,000

-2,952,000

-30,000

-19,000

-17,000

-10,000

-87,000

-61,000

-55,000

-36,000

-234,000

-164,000

-4,467,000

-2,928,000

Net Carrying Value

11,316,000

'

'

'

'

'

'

1,837,000

2,465,000

4,764,000

2,232,000

20,000

31,000

13,000

20,000

54,000

87,000

115,000

134,000

90,000

182,000

4,423,000

6,025,000

Total Gross Carrying Value

22,878,000

'

19,684,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total Accumulated Amortization

-11,320,000

'

-8,266,000

'

'

'

'

-3,071,000

-2,096,000

-3,359,000

-2,952,000

-30,000

-19,000

-17,000

-10,000

-87,000

-61,000

-55,000

-36,000

-234,000

-164,000

-4,467,000

-2,928,000

Total Net Carrying Value

11,558,000

'

11,418,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted-Average Remaining Life

'

'

'

'

'

'

'

'3 years 3 months 18 days

'2 years 6 months

'5 years 3 months 18 days

'3 years 6 months

'1 year 9 months 18 days

'2 years 3 months 18 days

'1 year 3 months 18 days

'2 years

'2 years 1 month 6 days

'2 years 7 months 6 days

'4 years 7 months 6 days

'5 years 4 months 24 days

'10 months 24 days

'1 year 7 months 6 days

'3 years

'3 years 6 months

Amortization of Intangible Assets

$3,300,000

$4,600,000

'

$2,600,000

$2,600,000

$700,000

$2,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Goodwill_and_Intangible_Assets4

Goodwill and Intangible Assets (Intangible Assets - Future Amortization) (Details) (USD $)	Sep. 27, 2014
In Thousands, unless otherwise specified
Goodwill and Intangible Assets Disclosure [Abstract]	'
2014 (remaining)	$1,179
2015	4,141
2016	2,480
2017	1,051
2018	706
Thereafter	1,759
Net Carrying Value	$11,316

Commitments_and_Contingencies_1

Commitments and Contingencies Narrative (Details) (USD $)	0 Months Ended		3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 27, 2014	Jul. 31, 2014	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013	Jul. 31, 2014
		extension					sublease_agreement
		sublease_agreement
Capital Leased Assets [Line Items]	'	'	'	'	'	'	'
Number of sublease agreements	'	'	'	'	'	'	2
Number of optional lease extensions	'	1	'	'	'	'	'
Term of optional lease extension	'	'10 years	'	'	'	'	'
Rent expense	'	'	$0.80	$0.40	$1.60	$1.20	'
Capital expenditures commitment	4.2	'	'	'	'	'	'
Prime Lease [Member]	'	'	'	'	'	'	'
Capital Leased Assets [Line Items]	'	'	'	'	'	'	'
Capital lease obligations	'	'	'	'	'	'	34.5
Tenant reimbursement allowance	'	2.3	'	'	'	'	'
Payments for deposits	'	2.8	'	'	'	'	'
Prime Lease, Sixth Floor [Member]	'	'	'	'	'	'	'
Capital Leased Assets [Line Items]	'	'	'	'	'	'	'
Area of real estate property	'	36,174	'	'	'	'	36,174
Prime Lease, Fourth Floor [Member]	'	'	'	'	'	'	'
Capital Leased Assets [Line Items]	'	'	'	'	'	'	'
Area of real estate property	'	36,395	'	'	'	'	36,395
Capital lease obligations	'	4.3	'	'	'	'	4.3
Prime Lease, Fifth Floor [Member]	'	'	'	'	'	'	'
Capital Leased Assets [Line Items]	'	'	'	'	'	'	'
Area of real estate property	'	36,174	'	'	'	'	36,174
Capital lease obligations	'	4.1	'	'	'	'	4.1

Commitments_and_Contingencies_2

Commitments and Contingencies Operating Lease Obligations (Details) (USD $)	Sep. 27, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Total	$48.10
Less Than 1 Year	3.8
1-3 Years	8.7
4-5 Years	9.5
Thereafter	$26.10

Stockholders_Equity_Deficit_St

Stockholders' Equity (Deficit) Stockholders' Equity Narrative (Details) (USD $)

0 Months Ended

3 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

Jan. 29, 2014

Sep. 27, 2014

Sep. 27, 2014

Sep. 28, 2013

Jan. 29, 2014

Jan. 29, 2014

Jan. 29, 2014

Sep. 27, 2014

Jan. 23, 2014

Sep. 27, 2014

Nov. 15, 2006

Jan. 23, 2014

Sep. 27, 2014

Nov. 15, 2006

Jan. 23, 2014

Nov. 15, 2006

Jan. 23, 2014

Sep. 27, 2014

Jan. 29, 2014

Sep. 28, 2013

Sep. 27, 2014

Sep. 27, 2014

Common Stock

Preferred Stock

Common Stock

2014 Plan

2014 Plan

Employee Stock Option

Employee Stock Option

Employee Stock Option

Employee Stock Option

Share-based Compensation Award, Tranche One

Share-based Compensation Award, Tranche One

Share-based Compensation Award, Tranche Two

Share-based Compensation Award, Tranche Two

Lighthouse Capital Partners

Chief Executive Officer

Chief Executive Officer

Loan and Security Agreement, 2010

Loan and Security Agreement, 2010

2006 plan

2014 Plan

2014 Plan

Employee Stock Option

Employee Stock Option

Employee Stock Option

Employee Stock Option

Convertible Preferred stock series A-1

Employee Stock Option

Employee Stock Option

Lighthouse Capital Partners

Lighthouse Capital Partners

Maximum

2006 plan

2014 Plan

2006 plan

2014 Plan

2006 plan

2006 plan

Common Stock

Maximum

Common Stock

Class of Stock [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares of Common Stock

'

'

'

'

6,152,500

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares of common stock sold, underwriters Issued

'

'

'

'

802,500

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share Price

'

$8.20

$8.20

'

$17

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net proceeds from issuance of common stock from IPO

$95,200,000

'

$96,007,000

$0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Offering Expenses

2,100,000

'

0

235,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Convertible preferred stock warrants

'

'

'

'

'

21,490,656

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Series A-1 Convertible preferred stock

'

'

'

'

'

'

40,697

'

'

'

'

'

'

'

'

'

'

40,697

'

'

'

40,000

Common Stock, Exercise Price

'

'

'

'

'

'

1.72

'

'

'

'

'

'

'

'

'

'

1.72

'

'

1.65

'

Stock Issued During Period, Shares, Warrant Exercises

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

38,142

'

'

37,591

'

Reserved, Common Stock

'

'

'

'

'

'

'

'

4,112,048

'

4,567,500

'

5,002,935

'

'

'

'

'

'

'

'

'

Annual Increase, percent

'

'

'

'

'

'

'

'

'

'

'

4.00%

'

'

'

'

'

'

'

'

'

'

Vesting Rights, Percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

25.00%

25.00%

75.00%

75.00%

'

'

'

'

'

Award Requisite Service Period

'

'

'

'

'

'

'

'

'

'

'

'

'

'1 year

'

'3 years

'

'

'

'

'

'

Expiration Period

'

'

'

'

'

'

'

'

'

'

'10 years

'10 years

'

'

'

'

'

'

'

'

'

'

Options available for grant under stock options plans

'

'

1,466,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

150,000

'

'

'

Stock-based compensation

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

200,000

'

'

Award Vesting Period

'

'

'

'

'

'

'

'

'

'

'4 years

'4 years

'

'

'1 year

'

'3 years

'

'

'

'

'

Intrinsic Value

'

100,000

1,300,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted Average Grant Date Fair Value

'

$7.53

$8.04

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Aggregate Fair Value

'

1,100,000

2,700,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unrecognized Compensation Cost

'

'

'

'

'

'

'

'

'

$11,700,000

'

'

'

'

'

'

'

'

'

'

'

'

Unrecognized Compensation Cost, Period for Recognition

'

'

'

'

'

'

'

'

'

'2 years 7 months 6 days

'

'

'

'

'

'

'

'

'

'

'

'

Number of Shares Available for Grant

'

'

'

'

'

'

'

2,767,026

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stockholders_Equity_Deficit_Sh

Stockholders' Equity (Deficit) - Shares Reserved for Issuance (Details)	9 Months Ended		0 Months Ended
	Sep. 27, 2014	Dec. 28, 2013	Jan. 29, 2014	Sep. 27, 2014	Sep. 27, 2014	Sep. 27, 2014
			Preferred Stock	Contingent acquisition consideration	Employee Stock Options, Available for Issuance	Employee Stock Option
				Convertible Common Stock, Series E
Class of Stock [Line Items]	'	'	'	'	'	'
Conversion of Series, Convertible Preferred Stock	7,743,000	'	'	297,000	2,755,000	4,691,000
Options Issued and Outstanding	4,691,000	3,439,000	'	'	'	'
Options available for grant under stock options plans	1,466,000	'	'	'	'	'
Convertible Securities	'	'	21,490,656	'	'	'

Stockholders_Equity_Deficit_Op

Stockholders' Equity (Deficit) - Option Activity (Details) (USD $)	9 Months Ended	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 27, 2014	Dec. 28, 2013
Equity [Abstract]	'	'
Options Issued and Outstanding	4,691	3,439
Options, Outstanding, Weighted Average Remaining Contractual Term	'7 years 8 months 23 days	'7 years 11 months 23 days
Options, Outstanding, Weighted Average Exercise Price	$6.48	$4.28
Options, Outstanding, Intrinsic Value	$15,348	$27,148
Options available for grant under stock options plans	1,466	'
Options granted, Weighted Average Exercise Price	$11.78	'
Options Canceled and Forfeited	-124	'
Options canceled and forfeited, Weighted Average Exercise Price	$10.11	'
Options Exercised	-90	'
Options Exercised, Weighted Average Exercise Price	$3.57	'
Options vested and exercisable as of March 29, 2014	2,274	'
Options Exercised, Weighted Average Remaining Contractual Term	'6 years 10 months 13 days	'
Options Vested and Expected to Vest, Aggregate Intrinsic Value	15,196	'
Options vested and expected to vest as of March 29, 2014 (1)	4,591	'
Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term	'7 years 8 months 12 days	'
Options vested and expected to vest as March 29th, 2014, Weighted Average Exercise Price	$3.92	'
Options vested and Expected to vest as of March 29th, 2014, Exercisable, Aggregate Intrinsic Value	$10,430	'
Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price	$6.40	'

Stockholders_Equity_Deficit_Fa

Stockholders' Equity (Deficit) - Fair Value Assumptions (Details) (Employee Stock Option)	9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Volatility	55.30%	'
Expected Dividend Rate	0.00%	0.00%
Minimum	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Risk-free interest rate	1.54%	1.23%
Expected Term (years)	'4 years 10 months 17 days	'6 years
Volatility	47.10%	44.60%
Maximum	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Risk-free interest rate	2.88%	2.52%
Expected Term (years)	'10 years	'9 years 6 months 18 days

Stockholders_Equity_Deficit_Al

Stockholders' Equity (Deficit) - Allocated Share-based Compensation Expense (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Stock-based compensation	$2,747	$478	$4,829	$1,196
Cost of Sales	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Stock-based compensation	58	41	152	132
Selling and Marketing Expense	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Stock-based compensation	255	92	564	265
Research and Development Expense	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Stock-based compensation	222	76	426	195
General and Administrative Expense	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Stock-based compensation	$2,212	$269	$3,687	$604

Net_Loss_per_Share_Reconciliat

Net Loss per Share - Reconciliation (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013
Earnings Per Share [Abstract]	'	'	'	'
Net loss	($14,453)	($11,732)	($39,872)	($24,665)
Accretion of preferred stock	0	14	4	42
Net loss attributable to common stockholders	($14,453)	($11,746)	($39,876)	($24,707)
Net loss per share attributable to common stockholders:	'	'	'	'
Basic and diluted (in dollars per share)	($0.46)	($3.86)	($1.42)	($8.36)
Weighted-average shares used to compute net loss per share attributable to common stockholders:	'	'	'	'
Basic and diluted (in shares)	31,362	3,042	27,995	2,957

Net_Loss_per_Share_Antidilutiv

Net Loss per Share - Antidilutive Securities (Details)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013
Redeemable Convertible Preferred Stock	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'	'
Antidilutive securities	0	21,299	0	21,299
Stock Options	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'	'
Antidilutive securities	4,691	3,553	4,691	3,553
Warrant | Preferred Stock	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'	'
Antidilutive securities	0	41	0	41
Warrant | Common Stock	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'	'
Antidilutive securities	0	40	0	40

Income_Taxes_Details

Income Taxes (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013
Income Tax Disclosure [Abstract]	'	'	'	'
Provision for income taxes	($1,178)	$62	($384)	$587

Segment_and_Geographical_Infor2

Segment and Geographical Information (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013
Segment Reporting Information [Line Items]	'	'	'	'
Revenue	$32,054	$21,681	$83,161	$58,976
Geographic Concentration | Revenue	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Percentage of total revenue	100.00%	100.00%	100.00%	100.00%
United States	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Revenue	29,450	19,940	76,223	54,086
United States | Geographic Concentration | Revenue	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Percentage of total revenue	92.00%	92.00%	92.00%	92.00%
International	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Revenue	$2,604	$1,741	$6,938	$4,890
International | Geographic Concentration | Revenue	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Percentage of total revenue	8.00%	8.00%	8.00%	8.00%

Other_Expense_Net_Details

Other Expense, Net (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013
Other Income and Expenses [Abstract]	'	'	'	'
Interest income	$21	$8	$67	$39
Interest expense	-12	-91	-29	-93
Other expense, net	-653	-118	-3,361	-264
Total other expense, net	($644)	($201)	($3,323)	($318)