Envivio 10-Q 11 Jun 15 2015 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Apr. 30, 2015	Jun. 01, 2015
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	FALSE
Document Period End Date	30-Apr-15
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Trading Symbol	ENVI
Entity Registrant Name	ENVIVIO INC
Entity Central Index Key	1174266
Current Fiscal Year End Date	-30
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		27,720,941

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Apr. 30, 2015	Jan. 31, 2015
In Thousands, unless otherwise specified
Current assets:
Cash and cash equivalents	$32,756	$37,790
Accounts receivable, net of allowance for doubtful accounts	8,799	8,780
Inventory	153	171
Prepaid expenses and other assets	4,082	3,655
Deferred inventory costs	125	86
Total current assets	45,915	50,482
Property and equipment, net	4,248	3,590
Restricted cash	329	329
Other non-current assets	176	202
Total assets	50,668	54,603
Current liabilities:
Accounts payable	4,110	5,480
Accrued compensation	4,629	5,070
Accrued liabilities	2,125	3,296
Deferred revenue, current	5,436	5,999
Total current liabilities	16,300	19,845
Deferred revenue, net of current portion	858	711
Other non-current liabilities	1,359	1,562
Deferred rent	736	498
Total liabilities	19,253	22,616
Stockholders' equity:
Preferred stock
Common stock	28	28
Additional paid-in capital	156,885	156,604
Accumulated other comprehensive loss	-1,133	-1,079
Accumulated deficit	-124,365	-123,566
Total stockholders' equity	31,415	31,987
Total liabilities and stockholders' equity	$50,668	$54,603

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Operations (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Apr. 30, 2015	Apr. 30, 2014
Revenue:
Product	$6,719	$6,111
Professional services and support	2,794	2,303
Total revenue	9,513	8,414
Cost of revenue:
Product	1,693	2,051
Professional services and support	579	643
Total cost of revenue	2,272	2,694
Gross profit	7,241	5,720
Operating expenses:
Research and development	1,904	2,500
Sales and marketing	3,938	5,068
General and administrative	2,245	2,680
Total operating expenses	8,087	10,248
Loss from operations	-846	-4,528
Interest income, net	6	2
Other expense, net	-79	-32
Loss before benefit for income taxes	-919	-4,558
Income tax benefit	-120	-28
Net loss	($799)	($4,530)
Net loss per share of common stock, basic and diluted	($0.03)	($0.17)
Shares used in computing net loss per share of common stock, basic and diluted	27,716,948	27,141,757

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Comprehensive Loss (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Apr. 30, 2015	Apr. 30, 2014
Net loss	($799)	($4,530)
Other comprehensive loss:
Foreign currency translation adjustment	-54	-64
Other comprehensive loss:	-54	-64
Total comprehensive loss	($853)	($4,594)

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Cash Flows (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Apr. 30, 2015	Apr. 30, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	($799)	($4,530)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	574	656
Stock-based compensation	280	613
Bad debt expense		14
Loss on disposal of fixed assets	21	-10
Changes in operating assets and liabilities:
Accounts receivable	-19	1,599
Inventory	18	-19
Prepaid expenses and other current assets	-426	-873
Deferred inventory costs	-39	6
Other non-current assets	25	-27
Accounts payable, accrued liabilities and accrued compensation	-3,686	665
Deferred revenue	-415	-787
Other non-current liabilities and deferred rent	67	152
Net cash used in operating activities	-4,399	-2,541
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	-549	-830
Net cash used in investing activities	-549	-830
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from stock options exercised	2	62
Repayment of French governmental research grant	-34	-66
Net cash used in financing activities	-32	-4
Effect of exchange rate changes on cash and cash equivalents	-54	-64
NET DECREASE IN CASH AND CASH EQUIVALENTS	-5,034	-3,439
CASH AND CASH EQUIVALENTS - Beginning of period	37,790	47,873
CASH AND CASH EQUIVALENTS - End of period	32,756	44,434
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Interest paid	1
Taxes paid	13
NON-CASH INVESTING AND FINANCING ACTIVITIES:
Capital expenditures not paid in quarter	$704

Organization_Basis_of_Presenta

Organization, Basis of Presentation and Summary of Significant Accounting Policies	3 Months Ended
	Apr. 30, 2015
Organization, Basis of Presentation and Summary of Significant Accounting Policies	1. Organization, Basis of Presentation and Summary of Significant Accounting Policies
	Envivio, Inc. (the “Company”) was incorporated in the state of Delaware on January 5, 2000. The Company is a leading provider of IP video processing and distribution solutions to mobile and broadband service providers, cable multiple system operators, direct broadcast satellite service providers and content providers, which includes broadcasters and content publishers, owners, aggregators and licensees. The Company is headquartered in San Francisco, California and maintains operations in North America, Europe (including research and development operations in France) and the Asia Pacific region.
	Basis of Presentation
	The Company’s unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Certain information and note disclosures normally included in financial statements in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. The accompanying unaudited consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. The January 31, 2015 condensed consolidated balance sheet was derived from audited financial statements. This Quarterly Report on Form 10-Q should be read in conjunction with the Company’s audited consolidated financial statements and notes thereto contained in the Company’s annual report on Form 10-K which was filed with the Securities and Exchange Commission on April 23, 2015 (“2015 Form 10-K”). The interim results presented herein are not necessarily indicative of the results of operations that may be expected for the full fiscal year ending January 31, 2016, or any other future period.
	Use of Estimates
	The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities. On an on-going basis, the Company evaluates its estimates, including those related to revenue recognition, allowances for doubtful accounts, valuation of deferred inventory costs, useful lives of property and equipment, valuation of deferred tax assets, valuation of equity and liability instruments, the French government research tax credit and stock-based compensation. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments of the carrying values of assets and liabilities. Actual results could differ materially from these estimates.
	Significant Accounting Policies
	The Company’s significant accounting policies are described in Note 1 of its audited consolidated financial statements included in its 2015 Form 10-K. There have been no material changes to these significant accounting policies during the three months ended April 30, 2015.
	Recent Accounting Pronouncements
	In April, 2014, the FASB issued Accounting Standards Update (“ASU”) 2014-08, “Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity.” This guidance raises the threshold for a disposal to qualify as a discontinued operation and requires new disclosures of both discontinued operations and certain other disposals that do not meet the definition of a discontinued operation. The guidance became effective for the Company beginning in the first quarter of the fiscal year ended January 31, 2016. The adoption of ASU 2014-08 did not have a material impact on its financial position, results of operations or cash flows.
	In May 2014, he FASB issued ASU 2014-09 regarding the Accounting Standards Codification (“ASC”) Topic 606 “Revenue from Contracts with Customers.” This ASU provides principles for recognizing revenue for the transfer of promised goods or services to customers with the consideration to which the entity expects to be entitled in exchange for those goods or services. This ASU will be effective for the Company’s fiscal year beginning February 1, 2017. Early adoption is not permitted. In April 2015, the FASB announced a proposal to defer the effective date by one year, with early adoption on the original effective date permitted. The Company has not yet selected a transition method and it is currently evaluating the effect that the updated standard will have on its consolidated financial statements and related disclosures.
	On November 2014, the FASB issued ASU 2014-16, “Derivatives and Hedging (Topic 815) — Determining Whether the Host Contract in a Hybrid Financial Instrument Issued in the Form of a Share is More Akin to Debt or to Equity.” ASU 2014-16 was issued to clarify how current U.S. GAAP should be interpreted in evaluating the economic characteristics and risk of a host contract in a hybrid financial instrument that is issued in the form of a share. In addition, ASU 2014-16 was issued to clarify that in evaluating the nature of a host contract, an entity should assess the substance of the relevant terms and features (that is, the relative strength of the debt-like or equity-like terms and features given the facts and circumstances) when considering how to weight those terms and features. ASU 2014-16 is effective with fiscal years beginning after December 15, 2015. Early adoption in an interim period is permitted. The Company does not expect the adoption of ASU 2014-16 to have a material impact on its financial position, results of operations or cash flows.
	In February 2015, the FASB issued ASU 2015-02, “Consolidation (Topic 810) — Amendments to the Consolidation Analysis,” intended to improve targeted areas of consolidation guidance for all entities. ASU 2015-02 is effective with fiscal years beginning after December 15, 2015. Early adoption in an interim period is permitted. The Company is currently evaluating the impact of the adoption of ASU 2015-02 on its consolidated financial statements.
	In April, 2015, the FASB issued ASU 2015-05, “Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40) - Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement”. ASU 2015-05 amends ASC 350-40 to provide customers with guidance on whether a cloud computing arrangement contains a software license to be accounted for as internal-use software. ASU No. 2015-05 is effective in the fiscal year beginning after December 15, 2015. Early adoption in an interim period is permitted. The Company does not expect the adoption of ASU 2015-05 to have a material impact on its financial position, results of operations or cash flows.

Balance_Sheet_Items

Balance Sheet Items	3 Months Ended
	Apr. 30, 2015
Balance Sheet Items	2. Balance Sheet Items
	Accounts receivable, net of allowance for doubtful accounts, consists of the following (in thousands):
		April 30, 2015			January 31, 2015
	Accounts receivable
	Accounts receivable, gross	$	10,838		$	10,819
	Allowance for doubtful accounts		(2,039	)		(2,039	)
	Accounts receivable, net	$	8,799		$	8,780
	Prepaid expenses and other current assets are comprised of the following (in thousands):
		April 30, 2015			January 31, 2015
	Foreign tax credits refundable	$	2,620		$	2,190
	Prepaid expenses		1,462			1,465
	Prepaid expenses and other current assets	$	4,082		$	3,655
	Property and equipment, net, consist of the following (in thousands):
		April 30, 2015			January 31, 2015
	Computer and equipment	$	9,256		$	10,452
	Software		1,231			1,435
	Furniture and fixtures		1,774			1,881
	Leasehold improvements		949			263
	Less: accumulated depreciation and amortization		-8,962			-10,441
	Property and equipment, net	$	4,248		$	3,590
	Total depreciation and amortization expense was $574,000 and $656,000 during the three months ended April 30, 2015 and 2014, respectively. During the three months ended April 30, 2015, we disposed of fully depreciated assets with an original cost of $1.5 million.

Fair_Value_of_Financial_Instru

Fair Value of Financial Instruments	3 Months Ended
	Apr. 30, 2015
Fair Value of Financial Instruments	3. Fair Value of Financial Instruments
	The fair value of the Company’s financial assets measured on a recurring basis is as follows (in thousands):
		April 30, 2015								January 31, 2015
		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
	Assets:
	Money market funds (included in cash and cash equivalents)	$	30,467	$	—	$	—	$	30,467	$	34,152	$	—	$	—	$	34,152

Line_of_Credit_and_Other_NonCu

Line of Credit and Other Non-Current Liabilities	3 Months Ended
	Apr. 30, 2015
Line of Credit and Other Non-Current Liabilities	4. Line of Credit and Other Non-Current Liabilities
	The Company did not have any debt outstanding as of April 30, 2015 and January 31, 2015.
	Line of Credit
	In November 2010, the Company entered into a revolving line of credit with a commercial lender that allowed for draws of up to $5.0 million for general corporate purposes. Amounts borrowed were to be repaid prior to the maturity date in November 2012.
	On July 31, 2012, the Company amended its revolving line of credit agreement with a commercial lender to increase the amount available from up to $5.0 million to $10.0 million for general corporate purposes and extend the maturity date to July 2014. Under the terms of this amendment, interest accrues at a floating per annum rate equal to the greater of either (x) the prime rate plus 0.75% or (y) 4.00% and the Company is required to pay commitment fees of $25,000 per year. The Company did not draw down any outstanding amount on this line of credit and the line of credit expired in July 2014 and has not been renewed.
	In October 2014, the Company entered into an irrevocable standby letter of credit relating to the new San Francisco office lease. The standby letter of credit protects the lessor by ensuring the full and faithful performance by the Company of all its obligations and for all losses and damages the lessor may suffer as a result of any breach or default by the Company under the lease. The letter of credit is for $329,000, payable in the City of San Francisco, California and provides for a right to transfer the letter of credit to another party, person or entity as well as requires the Company to replenish any amounts drawn down by the lessor pursuant to its rights under the lease agreement. The letter of credit is secured by a $329,000 deposit, which is classified as restricted cash on the balance sheet as of April 30, 2015 and January 31, 2015.
	Other Non-current Liabilities
	The Company receives repayable research grants from regional French governmental agencies to fund research and development activities. The French governmental research grants payable included in accrued liabilites were $91,000 and $125,000 as of April 30, 2015 and January 31, 2015, respectively. Long-term tax liabilities, included in other non-current liabilities, were $1.4 million and $1.5 million as of April 30, 2015 and January 31, 2015.

Commitments_and_Contingencies

Commitments and Contingencies	3 Months Ended
	Apr. 30, 2015
Commitments and Contingencies	5. Commitments and Contingencies
	Operating Leases
	The Company leases facilities under operating leases expiring at various dates through 2023. As of April 30, 2015, future minimum payments under the Company’s non-cancellable leases are as follows (in thousands):
	Year ending January 31,	Future Lease payments
	2016 (remaining nine months)	$	802
	2017		995
	2018		948
	2019		895
	2020		841
	Thereafter		1,873
	Total	$	6,354
	In October 2014, the Company entered into a ninety-seven month operating lease agreement on approximately 4,600 square feet for a new office in San Francisco, California. The lease commencement date was March 23, 2015 and the average monthly rent is $27,000. The total future minimum payments of $2.6 million under this operating lease agreement are included in the above table.
	In addition, the Company exercised its early termination right for its prior office lease in South San Francisco, California. In connection with this early termination exercise, the Company paid a $20,000 early termination fee during the three months ended October 31, 2014 and also paid two times the monthly rent of $20,000 each month from January 2015 to March 2015 for the continued occupancy of the old office in South San Francisco.
	Rental expense totaled $215,000 and $291,000 during the three months ended April 30, 2015 and 2014, respectively.
	Litigation Matters
	On October 5, 2012 a complaint captioned Wiley v. Envivio, Inc., et al. CIV-517185 was filed in the Superior Court of California, County of San Mateo, naming as defendants the Company, each of its directors, its chief executive officer, its chief financial officer, and certain underwriters of its IPO. The lawsuit purports to be a class action on behalf of purchasers of shares issued in the IPO and generally alleges that the registration statement for the IPO contained materially false or misleading statements. The complaint purports to assert claims under the Securities Act of 1933, as amended, and seeks unspecified damages and other relief. On October 19, 2012 a similar complaint captioned Toth v. Envivio, Inc. et al. CIV-517481 was filed in the same court. On November 2, 2012 defendants removed the cases to the United States District Court for the Northern District of California where they were assigned case numbers 12-cv-05637-CRB and 12-cv- 05636-CW. A similar complaint was filed in the United States District Court for the Northern District of California on December 20, 2012 entitled Thomas v. Envivio, Inc., et al. C 12-06464. The Wiley and Toth actions were subsequently remanded to the San Mateo Superior Court, where they are now pending, and the Thomas case was voluntarily dismissed without prejudice. On February 28, 2014, a complaint was filed in the United States District Court for the Northern District of California entitled Gary Silverberg v. Envivio, Inc. et al., Civil No. 14-cv-00933-PJH. The complaint purports to be on behalf of a class of purchasers of the Company’s securities between April 25, 2012 and September 7, 2012. It names as defendants the Company and the Company’s chief executive officer and chief financial officer, and seeks unspecified damages and other relief for alleged violations of Sections 10(b) and 20(a) of the Securities Exchange Act of 1934. On June 25, 2014, the Silverberg case was voluntarily dismissed without prejudice. In November 2014, the Company and the named defendants reached an agreement in principle to settle the above-described actions without any admission of any wrongdoing by the Company or any of the named defendants. The parties subsequently entered into a formal settlement agreement, which must be approved by the court before becoming final. The agreement required the Company to contribute approximately $1.0 million toward the settlement. On March 16, 2015, the Company funded into an escrow account its portion of the settlement of approximately $1.0 million, and the remaining settlement payment will be covered by the Company’s director and officer insurance providers. The settlement payment will be released from escrow subject to and upon final court approval of the settlement.
	The Company is subject to claims and assessments from time to time in the ordinary course of business. The Company is not currently a party to any other litigation matters that, individually or in the aggregate, are expected to have a material adverse effect on the Company’s business, financial condition or results of operations.
	Indemnification
	The Company may in the ordinary course of business agree to defend and indemnify some customers against legal claims that the Company’s products infringe on certain U.S. patents or copyrights. To date, the Company has not been required to make any payments resulting from any such infringement, and no amounts have been accrued for such matters. Certain of the Company’s employment agreements with its officers, arrangements with members of the board of directors and the Company’s Restated Certificate of Incorporation and Bylaws, also include indemnification provisions. As a result, the Company intends to indemnify its directors and officers in connection with being named as defendants in the purported class action IPO-related litigation and other related lawsuits. In addition, pursuant to the terms of the Company’s underwriting agreement with the representatives of the several underwriters of the Company’s initial public offering, the Company may be required to indemnify the underwriters for certain matters, subject to the terms and conditions contained in the underwriting agreement and applicable law. As a result, the Company is indemnifying the underwriters for their expenses incurred in connection with being named as defendants in the purported class action IPO-related litigation. The Company expenses such costs in the period in which such costs are incurred. The terms of the Company’s indemnification obligations may vary.

Stockholders_Equity

Stockholders' Equity	3 Months Ended
	Apr. 30, 2015
Stockholders' Equity	6. Stockholders’ Equity
	Common Stock
	Shares of common stock authorized, issued and outstanding, as of April 24, 2015 and January 31, 2015 consist of the following:
		April 30, 2015				January 31, 2015
		Authorized		Issued and		Authorized		Issued and
				Outstanding				Outstanding
	Common stock		100,000,000		27,720,097		100,000,000		27,714,092
	Shares of common stock reserved for issuance on an as-if converted basis are as follows as of April 30, 2015 and January 31, 2015:
		April 30, 2015		January 31, 2015
	Exercise and vesting of stock-based awards		4,048,456		3,929,199
	Available for option grants		2,474,070		1,409,021
	Exercise of common stock warrants		36,000		36,000
	Total shares of common stock reserved for issuance		6,558,526		5,374,220
	Common Stock Warrants
	Immediately prior to the closing of the IPO on April 24, 2012, an outstanding warrant to purchase 36,000 shares of convertible preferred stock was converted into a warrant to purchase 36,000 shares of common stock on a one-to-one basis. Upon the conversion of the underlying convertible preferred stock, the Company remeasured the related warrant liability to fair value with the remaining amounts being reclassified to additional paid-in capital. Common stock warrants have an exercise price of $12.50 per share and expire in June 2015.

Stock_Option_Plan

Stock Option Plan	3 Months Ended
	Apr. 30, 2015
Stock Option Plan	7. Stock Option Plan
	Stock Option Plans
	The Company adopted its stock option plan in 2000 (the “2000 Plan”). Under the 2000 Plan, as amended, the Company was able to grant options to purchase up to 1,181,689 shares of common stock to certain employees, directors and consultants. Under the terms of the 2000 Plan, the Company may grant incentive stock options (“ISO”), non-statutory stock options (“NSO”), common stock purchase agreements (“CSPA”) and stock purchase rights (“SPR”). Such awards are exercisable at prices generally equal to the fair value of the Company’s common stock at the date of grant, as determined by the board of directors. Awards granted under the 2000 Plan generally vest over four years with a six-month cliff period and may be exercised for a period of up to ten years. Vested options generally expire 30 days after termination of employment. In December 2010, the board of directors approved a decrease in the number of shares of common stock reserved for issuance under the 2000 Plan to 644,366 shares. No shares were available for future grant under the 2000 Plan due to the adoption of the 2010 stock incentive plan described below.
	The Company adopted the 2010 stock incentive plan (the “2010 Plan”) in June 2010. The 2010 Plan provides that only employees are eligible for the grant of ISOs and that employees, consultants and outside directors are eligible for the grant of NSOs. The 2010 Plan also allows for the grant of SPRs and restricted stock units (“RSU”). Awards granted under the 2010 Plan also generally vest over four years with a six-month cliff period and may be exercised for a period of up to ten years. Vested options generally expire three months after termination of employment. No shares were available for future grant under the 2010 Plan due to the adoption of the 2012 stock incentive plan as more fully described below.
	The Company adopted the 2012 stock incentive plan (the “2012 Plan”) in June 2011, as amended in April 2012. The 2012 Plan provides that only employees are eligible for the grant of ISOs and that employees, consultants and outside directors are eligible for the grant of NSOs. The 2012 Plan also allows for the grant of SPRs, RSUs and other types of equity awards. Awards granted under the 2012 Plan also generally vest over four years with a twelve-month cliff period and may be exercised for a period of up to ten years. In general, the vesting of awards granted under the 2012 Plan accelerates as to 25% of the then remaining unvested portion of the awards upon a change in control of the Company. Vested options generally expire three months after termination of employment. Shares of common stock reserved for issuance under the 2012 Plan consist of 2,474,070 and 1,409,021 shares as of April 30, 2015 and January 31, 2015, respectively. In addition, up to 1,750,614 shares subject to outstanding awards under the 2000 Plan or 2010 Plan that are subsequently forfeited or terminated for any reason before being exercised will be made available for issuance under the 2012 Plan. The number of shares that have been authorized for issuance under the 2012 Plan will be automatically increased on the first day of each fiscal year beginning in fiscal 2014 and ending in fiscal 2023, in an amount equal to the least of (i) 2,000,000 shares, (ii) 4% of the outstanding shares of the Company’s common stock on the last day of the immediately preceding fiscal year, or (iii) another amount determined by the Company’s board of directors.
	At the beginning of fiscal 2016, the board of directors ratified an automatic annual increase in the number of shares authorized for issuance under the 2012 Plan based on 4% of the outstanding shares of the Company’s common stock on the last day of fiscal year 2015, or 1,190,311 shares. These shares were registered under the Securities Act of 1933 on Securities and Exchange Commission Form S-8 filed on April 23, 2015.
	The following table summarizes the stock-based award activity for the 2000 Plan, 2010 Plan and the 2012 Plan during the three months ended April 30, 2015:
		Shares			Stock			Weighted-		Average		Aggregate
		Available			Options and			Average		Remaining		Intrinsic
		For Grant			SPRs			Exercise		Contractual Life		Value
					Outstanding			Price		(in years)		(in thousands)
	January 31, 2015		1,409,021			3,586,791		$	1.89		7.2	$	1,565
	Additional options authorized		1,190,311			—			—
	Options granted		(194,207	)		194,207			1.37
	Options expired and forfeited		25,104			(25,104	)		2.48
	RSUs expired		43,841			—
	SPRs exercised		—			(3,005	)		0.3
	Options exercised		—			(2,000	)		0.3
	April 30, 2015		2,474,070			3,750,889			1.86		7.1	$	2,371
	Vested and expected to vest - April 30, 2015					3,597,524			1.85		7.1	$	2,358
	Vested - April 30, 2015					2,214,876			1.58		5.9	$	2,253
	Stock Purchase Rights and Common Stock Purchase Agreements
	The Company grants SPRs to its French employees and in limited past instances, CSPAs to service providers in the U.S. The SPRs and CSPAs provide the holder with a note equal to the aggregate exercise price of the related options, therefore, allowing the holder to legally exercise the related options at the time of issuance in consideration of the notes. Generally, the SPRs and CSPAs are subject to a vesting period of four years with the Company retaining the right to repurchase unvested shares at the aggregate exercise price of the underlying options. In the event that a holder’s status as an employee ceases for any reason, the notes and the related options are cancelled. As of April 30, 2015, there were 389,474 shares subject to repurchase under the provisions of the SPRs and 97,464 shares were subject to repurchase under the provisions of the CSPAs.
	The notes receivable issued to employees in conjunction with the SPRs and CSPAs are secured by the underlying shares and carry interest rates ranging from 2.1% to 5.9%. While the note terms indicate that they are full recourse, the Company has not pursued recourse in instances when a note receivable balance exceeds the fair value of the shares at the date of repurchase, and accordingly, the exercises of the SPRs and CSPAs have been considered non-substantive. Notes receivable relating to the SPRs and CSPAs are not recorded on the consolidated balance sheet due to the non-substantive exercise consideration. Accordingly, the SPRs and CSPAs have been accounted for as stock options and are included within the outstanding stock options as of each year end.
	Restricted Stock Units
	The Company grants RSUs to employees, executives and directors of the Company. As of April 30, 2015 the Company had 297,567 RSUs outstanding.
	Of the total RSUs outstanding, 171,807 are subject to service, market and performance-based vesting terms that include the requirement that the Company’s stock price exceed specified milestones relative to the Company’s stock price following the initial public offering and, in some cases, are subject to acceleration under certain circumstances, including a change in control. The Company uses a modified binary option pricing model (European call option) to establish the expected value of these RSUs.
	During the three months ended April 30, 2015, the Company recorded $8,000 of stock-based compensation related to RSUs with service, market and performance-based vesting. During the three months ended April 30, 2015, the Company recorded $39,000 of stock-based compensation related to RSUs with only service-based vesting.
	A summary of the Company’s RSU activity for the three months ended April 30, 2015 is presented below:
		RSUs			Weighted
		Outstanding			Average
					Grant Date
					Fair Value
	31-Jan-15		342,408		$	5.97
	Released		(1,000	)		1.45
	Forfeited		(43,841	)		6.11
	30-Apr-15		297,567		$	6.45
	Stock-based Compensation
	Total stock-based compensation expense during the three months ended April 30, 2015 and 2014 are recognized in the consolidated statements of operations as follows (in thousands):
		Three Months Ended April 30,
		2015			2014
	Cost of revenue	$	10		$	7
	Research and development		10			35
	Sales and marketing		49			82
	General and administrative		211			489
	Total stock-based compensation	$	280		$	613
	The weighted average assumptions used to estimate the fair value of the Company’s employee stock options at the grant dates during the three months ended April 30, 2015 and 2014 were as follows:
		Three Months Ended April 30,
		2015			2014
	Expected term (in years)		6.25			6.25
	Volatility		75	%		71	%
	Risk-free interest rate		1.75	%		2	%
	Expected dividend		0	%		0	%
	As of April 30, 2015, total compensation cost not yet recognized for unvested stock option grants and unvested stock awards were $1.6 million and $71,000 respectively, which are expected to be recognized over the following 3.0 years and 0.8 years based on the weighted average vesting term, respectively.

Net_Loss_per_Share

Net Loss per Share	3 Months Ended
	Apr. 30, 2015
Net Loss per Share	8. Net Loss per Share
	The following table sets forth the computation of the Company’s basic and diluted net loss per share during the three months ended April 30, 2015 and 2014 (in thousands, except for share and per share amounts):
		Three Months ended April 30,
		2015			2014
	Numerator:
	Net loss	$	(799	)	$	(4,530	)
	Denominator:
	Shares used in computing net loss per share attributable to common stockholders, basic and diluted		27,716,948			27,141,757
	Net loss per share attributable to common stockholders, basic and diluted	$	(0.03	)	$	(0.17	)
	The following outstanding shares of common stock equivalents were excluded from the computation of diluted net loss per share of common stock for the periods presented because including them would have been anti-dilutive:
		Three Months Ended April 30,
		2015			2014
	Stock options to purchase common stock		3,263,951			3,061,528
	Shares purchased with notes (SPRs and CSPAs)		486,938			489,943
	Common stock warrants		36,000			36,000
	Restricted stock units		297,567			357,026
	Total		4,084,456			3,944,497

Income_Taxes

Income Taxes	3 Months Ended
	Apr. 30, 2015
Income Taxes	9. Income Taxes
	The Company is subject to taxation in the U.S. and various state and foreign jurisdictions. The Company records liabilities for income tax contingencies based on our best estimate of the underlying exposures. The Company remains open for audit by the United States Internal Revenue Service and state tax authorities since inception. The Company remains open for audit by the French tax authorities for the years 2007 through 2009 and 2013 through 2015. Most other foreign jurisdictions have statute of limitations that range from three to six years. The Company is not currently under examination by income tax authorities in federal, state or other foreign jurisdictions.
	The Company’s effective tax rate is a blended rate resulting from the composition of taxable income in the various global jurisdictions in which it conducts business. The Company records a full valuation allowance against its deferred tax assets in the jurisdictions where there is insufficient certainty surrounding the realization of deferred tax assets through future taxable income. For the three months ended April 30, 2015 and 2014, the Company recorded an income tax benefit of $120,000 and $28,000, respectively. The income tax benefit for the three months ended April 30, 2015 is primarily the result of the release during the first quarter of fiscal 2016 of a $277,000 reserve for an uncertain tax position related to the Company’s France entity due to the lapse in statute of limitations for the tax year 2012, partially offset by various foreign and state and local income taxes. The income tax benefit for the three months ended April 30, 2014 was comprised of the release during the first quarter of fiscal 2015 of a $165,000 reserve for an uncertain tax position related to the Company’s France entity due to the lapse in statute of limitations for the tax year 2011, partially offset by various foreign and state and local income taxes.
	In compliance with applicable guidance for accounting for uncertainty in income taxes, the company had gross unrecognized tax benefits, which included provisions for estimated interest and penalties, of approximately $1.5 million as of April 30, 2015, and approximately $1.4 million as of April 30, 2014. If all of the April 30, 2015 unrecognized tax benefits were recognized, $1.3 million would impact the provision for income taxes, with the remainder resulting in adjustments to other tax accounts, primarily deferred taxes. The Company believes that it is reasonably possible that approximately $324,000 of its currently remaining unrecognized tax benefits may be recognized within the 12 months beginning April 30, 2015, as a result of a lapse of the statute of limitations.
	The Company recognizes interest and possible penalties related to uncertain tax positions in income tax expense.

Segment_Information

Segment Information	3 Months Ended
	Apr. 30, 2015
Segment Information	10. Segment Information
	The Company’s solutions enable customers to deliver video services over broadcast, cable, internet, mobile and satellite networks. Operating segments are defined as components of an enterprise that engage in business activities for which separate financial information is available and evaluated by the chief operating decision maker in deciding how to allocate resources and assessing performance. The Company’s chief operating decision maker is its chief executive officer. The chief executive officer reviews financial information presented on a consolidated basis for purposes of allocating resources and evaluating financial performance. The Company has one business activity and there are no segment managers who are held accountable for operations, operating results beyond revenue goals or gross margins, or plans for levels or components below the consolidated unit level. Accordingly, the Company has a single reporting segment.
	The Company’s revenue by geographic region, based on the location at which each sale originates, is summarized as follows (in thousands):
			Three Months Ended April 30,
			2015			2014
	Americas		$	5,744		$	2,966
	Asia Pacific			1,897			2,415
	EMEA			1,872			3,033
	Total		$	9,513		$	8,414
	Included within the Americas total in the above table is revenue from sales originating in the U.S. of $5.6 million and $2.6 million during the three months ended April 30, 2015 and 2014, respectively. No other country accounted for more than 10% of the Company’s total revenue.
	The Company’s property and equipment, net, by geographic region is summarized as follows (in thousands):
			April 30, 2015			January 31, 2015
	Americas		$	2,748		$	2,021
	France			1,488			1,557
	United Kingdom			3			4
	Asia Pacific			9			8
	Total		$	4,248		$	3,590
	All assets included within the Americas region in the above table are in the United States.
	Customers representing 10% or greater of total revenue for the periods presented were as follows (in percentages):
			Three Months Ended April 30,
			2015			2014
	Comcast Cable			45	%		29	%
	Time Warner Cable			12	%		*
	Huawei Technologies			*			10	%
	*	Less than 10%
	Customers representing 10% or greater of total accounts receivable, gross for the periods presented were as follows (in percentages):
			April 30, 2015			January 31, 2015
	Comcast Cable			35	%		19	%

Organization_Basis_of_Presenta1

Organization, Basis of Presentation and Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Apr. 30, 2015
Basis of Presentation	Basis of Presentation
	The Company’s unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Certain information and note disclosures normally included in financial statements in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. The accompanying unaudited consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. The January 31, 2015 condensed consolidated balance sheet was derived from audited financial statements. This Quarterly Report on Form 10-Q should be read in conjunction with the Company’s audited consolidated financial statements and notes thereto contained in the Company’s annual report on Form 10-K which was filed with the Securities and Exchange Commission on April 23, 2015 (“2015 Form 10-K”). The interim results presented herein are not necessarily indicative of the results of operations that may be expected for the full fiscal year ending January 31, 2016, or any other future period.
Use of Estimates	Use of Estimates
	The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities. On an on-going basis, the Company evaluates its estimates, including those related to revenue recognition, allowances for doubtful accounts, valuation of deferred inventory costs, useful lives of property and equipment, valuation of deferred tax assets, valuation of equity and liability instruments, the French government research tax credit and stock-based compensation. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments of the carrying values of assets and liabilities. Actual results could differ materially from these estimates.
Significant Accounting Policies	Significant Accounting Policies
	The Company’s significant accounting policies are described in Note 1 of its audited consolidated financial statements included in its 2015 Form 10-K. There have been no material changes to these significant accounting policies during the three months ended April 30, 2015.
Recent Accounting Pronouncements	Recent Accounting Pronouncements
	In April, 2014, the FASB issued Accounting Standards Update (“ASU”) 2014-08, “Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity.” This guidance raises the threshold for a disposal to qualify as a discontinued operation and requires new disclosures of both discontinued operations and certain other disposals that do not meet the definition of a discontinued operation. The guidance became effective for the Company beginning in the first quarter of the fiscal year ended January 31, 2016. The adoption of ASU 2014-08 did not have a material impact on its financial position, results of operations or cash flows.
	In May 2014, he FASB issued ASU 2014-09 regarding the Accounting Standards Codification (“ASC”) Topic 606 “Revenue from Contracts with Customers.” This ASU provides principles for recognizing revenue for the transfer of promised goods or services to customers with the consideration to which the entity expects to be entitled in exchange for those goods or services. This ASU will be effective for the Company’s fiscal year beginning February 1, 2017. Early adoption is not permitted. In April 2015, the FASB announced a proposal to defer the effective date by one year, with early adoption on the original effective date permitted. The Company has not yet selected a transition method and it is currently evaluating the effect that the updated standard will have on its consolidated financial statements and related disclosures.
	On November 2014, the FASB issued ASU 2014-16, “Derivatives and Hedging (Topic 815) — Determining Whether the Host Contract in a Hybrid Financial Instrument Issued in the Form of a Share is More Akin to Debt or to Equity.” ASU 2014-16 was issued to clarify how current U.S. GAAP should be interpreted in evaluating the economic characteristics and risk of a host contract in a hybrid financial instrument that is issued in the form of a share. In addition, ASU 2014-16 was issued to clarify that in evaluating the nature of a host contract, an entity should assess the substance of the relevant terms and features (that is, the relative strength of the debt-like or equity-like terms and features given the facts and circumstances) when considering how to weight those terms and features. ASU 2014-16 is effective with fiscal years beginning after December 15, 2015. Early adoption in an interim period is permitted. The Company does not expect the adoption of ASU 2014-16 to have a material impact on its financial position, results of operations or cash flows.
	In February 2015, the FASB issued ASU 2015-02, “Consolidation (Topic 810) — Amendments to the Consolidation Analysis,” intended to improve targeted areas of consolidation guidance for all entities. ASU 2015-02 is effective with fiscal years beginning after December 15, 2015. Early adoption in an interim period is permitted. The Company is currently evaluating the impact of the adoption of ASU 2015-02 on its consolidated financial statements.
	In April, 2015, the FASB issued ASU 2015-05, “Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40) - Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement”. ASU 2015-05 amends ASC 350-40 to provide customers with guidance on whether a cloud computing arrangement contains a software license to be accounted for as internal-use software. ASU No. 2015-05 is effective in the fiscal year beginning after December 15, 2015. Early adoption in an interim period is permitted. The Company does not expect the adoption of ASU 2015-05 to have a material impact on its financial position, results of operations or cash flows.

Balance_Sheet_Items_Tables

Balance Sheet Items (Tables)	3 Months Ended
	Apr. 30, 2015
Accounts Receivable, Net of Allowance for Doubtful Accounts	Accounts receivable, net of allowance for doubtful accounts, consists of the following (in thousands):
		April 30, 2015			January 31, 2015
	Accounts receivable
	Accounts receivable, gross	$	10,838		$	10,819
	Allowance for doubtful accounts		(2,039	)		(2,039	)
	Accounts receivable, net	$	8,799		$	8,780
Prepaid Expenses and Other Current Assets	Prepaid expenses and other current assets are comprised of the following (in thousands):
		April 30, 2015			January 31, 2015
	Foreign tax credits refundable	$	2,620		$	2,190
	Prepaid expenses		1,462			1,465
	Prepaid expenses and other current assets	$	4,082		$	3,655
Property and Equipment, Net	Property and equipment, net, consist of the following (in thousands):
		April 30, 2015			January 31, 2015
	Computer and equipment	$	9,256		$	10,452
	Software		1,231			1,435
	Furniture and fixtures		1,774			1,881
	Leasehold improvements		949			263
	Less: accumulated depreciation and amortization		-8,962			-10,441
	Property and equipment, net	$	4,248		$	3,590

Fair_Value_of_Financial_Instru1

Fair Value of Financial Instruments (Tables)	3 Months Ended
	Apr. 30, 2015
Fair Value of Financial Assets Measured on Recurring Basis	The fair value of the Company’s financial assets measured on a recurring basis is as follows (in thousands):
		April 30, 2015								January 31, 2015
		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
	Assets:
	Money market funds (included in cash and cash equivalents)	$	30,467	$	—	$	—	$	30,467	$	34,152	$	—	$	—	$	34,152

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	3 Months Ended
	Apr. 30, 2015
Future Minimum Payments Under Non - Cancellable Leases	The Company leases facilities under operating leases expiring at various dates through 2023. As of April 30, 2015, future minimum payments under the Company’s non-cancellable leases are as follows (in thousands):
	Year ending January 31,	Future Lease payments
	2016 (remaining nine months)	$	802
	2017		995
	2018		948
	2019		895
	2020		841
	Thereafter		1,873
	Total	$	6,354

Stockholders_Equity_Tables

Stockholders' Equity (Tables)	3 Months Ended
	Apr. 30, 2015
Shares of Common Stock Authorized, Issued and Outstanding	Shares of common stock authorized, issued and outstanding, as of April 24, 2015 and January 31, 2015 consist of the following:
		April 30, 2015				January 31, 2015
		Authorized		Issued and		Authorized		Issued and
				Outstanding				Outstanding
	Common stock		100,000,000		27,720,097		100,000,000		27,714,092
Shares of Common Stock Reserved for Issuance	Shares of common stock reserved for issuance on an as-if converted basis are as follows as of April 30, 2015 and January 31, 2015:
		April 30, 2015		January 31, 2015
	Exercise and vesting of stock-based awards		4,048,456		3,929,199
	Available for option grants		2,474,070		1,409,021
	Exercise of common stock warrants		36,000		36,000
	Total shares of common stock reserved for issuance		6,558,526		5,374,220

Stock_Option_Plan_Tables

Stock Option Plan (Tables) (Convertible Preferred Stock)	3 Months Ended
	Apr. 30, 2015
Convertible Preferred Stock
Summary of Stock-Based Award Activity	The following table summarizes the stock-based award activity for the 2000 Plan, 2010 Plan and the 2012 Plan during the three months ended April 30, 2015:
		Shares			Stock			Weighted-		Average		Aggregate
		Available			Options and			Average		Remaining		Intrinsic
		For Grant			SPRs			Exercise		Contractual Life		Value
					Outstanding			Price		(in years)		(in thousands)
	January 31, 2015		1,409,021			3,586,791		$	1.89		7.2	$	1,565
	Additional options authorized		1,190,311			—			—
	Options granted		(194,207	)		194,207			1.37
	Options expired and forfeited		25,104			(25,104	)		2.48
	RSUs expired		43,841			—
	SPRs exercised		—			(3,005	)		0.3
	Options exercised		—			(2,000	)		0.3
	April 30, 2015		2,474,070			3,750,889			1.86		7.1	$	2,371
	Vested and expected to vest - April 30, 2015					3,597,524			1.85		7.1	$	2,358
	Vested - April 30, 2015					2,214,876			1.58		5.9	$	2,253
Summary of Restricted Stock Unit Activity	A summary of the Company’s RSU activity for the three months ended April 30, 2015 is presented below:
		RSUs			Weighted
		Outstanding			Average
					Grant Date
					Fair Value
	31-Jan-15		342,408		$	5.97
	Released		(1,000	)		1.45
	Forfeited		(43,841	)		6.11
	30-Apr-15		297,567		$	6.45
Stock-Based Compensation Expense	Total stock-based compensation expense during the three months ended April 30, 2015 and 2014 are recognized in the consolidated statements of operations as follows (in thousands):
		Three Months Ended April 30,
		2015			2014
	Cost of revenue	$	10		$	7
	Research and development		10			35
	Sales and marketing		49			82
	General and administrative		211			489
	Total stock-based compensation	$	280		$	613
Weighted Average Assumptions Used to Estimate Fair Value	The weighted average assumptions used to estimate the fair value of the Company’s employee stock options at the grant dates during the three months ended April 30, 2015 and 2014 were as follows:
		Three Months Ended April 30,
		2015			2014
	Expected term (in years)		6.25			6.25
	Volatility		75	%		71	%
	Risk-free interest rate		1.75	%		2	%
	Expected dividend		0	%		0	%

Net_Loss_per_Share_Tables

Net Loss per Share (Tables)	3 Months Ended
	Apr. 30, 2015
Basic and Diluted Net Loss Per Share	The following table sets forth the computation of the Company’s basic and diluted net loss per share during the three months ended April 30, 2015 and 2014 (in thousands, except for share and per share amounts):
		Three Months ended April 30,
		2015			2014
	Numerator:
	Net loss	$	(799	)	$	(4,530	)
	Denominator:
	Shares used in computing net loss per share attributable to common stockholders, basic and diluted		27,716,948			27,141,757
	Net loss per share attributable to common stockholders, basic and diluted	$	(0.03	)	$	(0.17	)
Outstanding Shares of Common Stock Equivalents Excluded from Computation of Diluted Net Loss Per Share	The following outstanding shares of common stock equivalents were excluded from the computation of diluted net loss per share of common stock for the periods presented because including them would have been anti-dilutive:
		Three Months Ended April 30,
		2015			2014
	Stock options to purchase common stock		3,263,951			3,061,528
	Shares purchased with notes (SPRs and CSPAs)		486,938			489,943
	Common stock warrants		36,000			36,000
	Restricted stock units		297,567			357,026

Segment_Information_Tables

Segment Information (Tables)	3 Months Ended
	Apr. 30, 2015
Revenue by Geographic Region, Based on Location at Which Each Sale Originates	The Company’s revenue by geographic region, based on the location at which each sale originates, is summarized as follows (in thousands):
			Three Months Ended April 30,
			2015			2014
	Americas		$	5,744		$	2,966
	Asia Pacific			1,897			2,415
	EMEA			1,872			3,033
	Total		$	9,513		$	8,414
Property and Equipment, Net, by Geographic Region	The Company’s property and equipment, net, by geographic region is summarized as follows (in thousands):
			April 30, 2015			January 31, 2015
	Americas		$	2,748		$	2,021
	France			1,488			1,557
	United Kingdom			3			4
	Asia Pacific			9			8
	Total		$	4,248		$	3,590
Customers Representing Greater of Total Revenue	Customers representing 10% or greater of total revenue for the periods presented were as follows (in percentages):
			Three Months Ended April 30,
			2015			2014
	Comcast Cable			45	%		29	%
	Time Warner Cable			12	%		*
	Huawei Technologies			*			10	%
	*	Less than 10%
Customers Representing Greater of Total Accounts Receivable	Customers representing 10% or greater of total accounts receivable, gross for the periods presented were as follows (in percentages):
			April 30, 2015			January 31, 2015
	Comcast Cable			35	%		19	%

Accounts_Receivable_Net_of_All

Accounts Receivable, Net of Allowance for Doubtful Accounts (Detail) (USD $)	Apr. 30, 2015	Jan. 31, 2015
In Thousands, unless otherwise specified
Accounts receivable
Accounts receivable, gross	$10,838	$10,819
Allowance for doubtful accounts	-2,039	-2,039
Accounts receivable, net	$8,799	$8,780

Prepaid_Expenses_and_Other_Cur

Prepaid Expenses and Other Current Assets (Detail) (USD $)	Apr. 30, 2015	Jan. 31, 2015
In Thousands, unless otherwise specified
Prepaid Expenses And Other Current Assets [Line Items]
Foreign tax credits refundable	$2,620	$2,190
Prepaid expenses	1,462	1,465
Prepaid expenses and other current assets	$4,082	$3,655

Property_and_Equipment_Net_Det

Property and Equipment, Net (Detail) (USD $)	Apr. 30, 2015	Jan. 31, 2015
In Thousands, unless otherwise specified
Property, Plant and Equipment [Line Items]
Less: accumulated depreciation and amortization	($8,962)	($10,441)
Property and equipment, net	4,248	3,590
Computer and Equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	9,256	10,452
Software
Property, Plant and Equipment [Line Items]
Total property and equipment	1,231	1,435
Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment	1,774	1,881
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	$949	$263

Balance_Sheet_Items_Additional

Balance Sheet Items - Additional Information (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Apr. 30, 2015	Apr. 30, 2014
Schedule of Trading Securities and Other Trading Assets [Line Items]
Total depreciation and amortization expense	$574	$656
Assets disposed
Schedule of Trading Securities and Other Trading Assets [Line Items]
Disposal of fully depreciated assets, original cost	$1,500

Fair_Value_of_Financial_Assets

Fair Value of Financial Assets Measured on Recurring Basis (Detail) (Money Market Funds, USD $)	Apr. 30, 2015	Jan. 31, 2015
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Total	$30,467	$34,152
Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Total	$30,467	$34,152

Line_of_Credit_and_Other_Non_C

Line of Credit and Other Non Current Liabilities - Additional Information (Detail) (USD $)	3 Months Ended	0 Months Ended
	Apr. 30, 2015	Jul. 31, 2012	Jan. 31, 2015	Oct. 31, 2014	Nov. 30, 2010
Line of Credit Facility [Line Items]
Debt outstanding	$0		$0
Line of credit expiration date	31-Jul-14
Research grants from Government Sources Payable	91,000		125,000
Other non-current liabilities	1,359,000		1,562,000
Deferred Tax Liability
Line of Credit Facility [Line Items]
Other non-current liabilities	1,400,000		1,500,000
Restricted Cash
Line of Credit Facility [Line Items]
Security deposit amount for letter of credit	329,000		329,000
Standby Letters of Credit | New office in San Francisco
Line of Credit Facility [Line Items]
Debt outstanding				329,000
Revolving Credit Facility
Line of Credit Facility [Line Items]
Revolving line of credit with a commercial lender		10,000,000			5,000,000
Maturity date		2014-07
Floating per annum rate equal to prime rate, Percentage		0.75%
Floating per annum rate equal to prime rate, Stated Percentage		4.00%
Commitment fees		$25,000
Revolving Credit Facility | Amended
Line of Credit Facility [Line Items]
Interest accrues at a floating per annum rate	Interest accrues at a floating per annum rate equal to the greater of either (x) the prime rate plus 0.75% or (y) 4.00% and the Company is required to pay commitment fees of $25,000 per year.

Future_Minimum_Payments_under_

Future Minimum Payments under Non - Cancellable Leases (Detail) (USD $)	Apr. 30, 2015
In Thousands, unless otherwise specified
Operating Leased Assets [Line Items]
2016 (remaining nine months)	$802
2017	995
2018	948
2019	895
2020	841
Thereafter	1,873
Total	$6,354

Commitments_and_Contingencies_1

Commitments and Contingencies - Additional Information (Detail) (USD $)	0 Months Ended	1 Months Ended		3 Months Ended
	Mar. 16, 2015	Nov. 30, 2014	Oct. 31, 2014	Apr. 30, 2015	Oct. 31, 2014	Apr. 30, 2014
			sqft		sqft
Commitments and Contingencies [Line Items]
Operating lease agreement period			97 months
Area of office leased			4,600		4,600
Anticipated lease commencement date			23-Mar-15
Average rent expense			$27,000	$20,000
Future minimum lease payment				6,354,000
Early termination fee					20,000
Description of early office lease contract termination				In connection with this early termination exercise, the Company paid a $20,000 early termination fee during the three months ended October 31, 2014 and also paid two times the monthly rent of $20,000 each month from January 2015 to March 2015
Rental expense, total				215,000		291,000
Litigation settlement amount		1,000,000
Escrow account settlement	1,000,000
New office in San Francisco
Commitments and Contingencies [Line Items]
Future minimum lease payment			$2,600,000		$2,600,000

Shares_of_Common_Stock_Authori

Shares of Common Stock Authorized, Issued and Outstanding (Detail) (Common Stock)	Apr. 30, 2015	Jan. 31, 2015
Common Stock
Class of Stock [Line Items]
Authorized	100,000,000	100,000,000
Issued and Outstanding	27,720,097	27,714,092

Shares_of_Common_Stock_Reserve

Shares of Common Stock Reserved for Issuance (Detail)	Apr. 30, 2015	Jan. 31, 2015
Schedule of Common Stock as Converted [Line Items]
Exercise and vesting of stock-based awards	4,048,456	3,929,199
Available for option grants	2,474,070	1,409,021
Exercise of common stock warrants	36,000	36,000
Total shares of common stock reserved for issuance	6,558,526	5,374,220

Stockholders_Equity_Additional

Stockholders' Equity - Additional Information (Detail) (USD $)	Apr. 24, 2012
Class of Stock [Line Items]
Common stock warrants exercise price	$12.50
Convertible Preferred Stock
Class of Stock [Line Items]
Warrant to purchase	36,000
Common Stock
Class of Stock [Line Items]
Warrant to purchase	36,000

Stock_Option_Plan_Additional_I

Stock Option Plan - Additional Information (Detail) (USD $)	3 Months Ended	12 Months Ended
	Apr. 30, 2015	Jan. 31, 2017	Jan. 31, 2015	Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Available for option grants	2,474,070		1,409,021
Number of additional share authorized	1,190,311
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Notes receivable issued to employees in conjunction with the SPRs and CSPAs, interest rate	2.10%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Notes receivable issued to employees in conjunction with the SPRs and CSPAs, interest rate	5.90%
Stock Purchase Rights (SPR)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted under plan vesting period	4 years
Stock repurchase program, number of shares authorized to be repurchased	389,474
Common stock purchase agreements (CSPA)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted under plan vesting period	4 years
Stock repurchase program, number of shares authorized to be repurchased	97,464
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation, shares outstanding	297,567		342,408
Share based compensation, shares vested outstanding	171,807
Restricted Stock Units (RSUs) | Performance and Market Based Vesting Conditions
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units, stock-based compensation expense	8,000
Restricted Stock Units (RSUs) | Non Market Performance Based Vesting Condition
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units, stock-based compensation expense	39,000
Option grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost not yet recognized for unvested stock option grants	1,600,000
Compensation cost not yet recognized, period of recognition	3 years
Stock awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost not yet recognized for unvested stock awards	71,000
Compensation cost not yet recognized, period of recognition	9 months 18 days
The 2010 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted under plan vesting period	4 years
Awards granted under plan cliff period	6 months
Awards granted under the plan exercise period	10 years
Vested options expiration period after termination of employment	3 months
Shares available for future grant	0
The 2000 Plan | Stock option to purchase common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant options to purchase of common stock	1,181,689
Awards granted under plan vesting period	4 years
Awards granted under plan cliff period	6 months
Awards granted under the plan exercise period	10 years
Vested options expiration period after termination of employment	30 days
Shares available for future grant	0
Shares of common stock reserved for issuance				644,366
The 2012 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted under plan vesting period	4 years
Awards granted under plan cliff period	12 months
Awards granted under the plan exercise period	10 years
Vested options expiration period after termination of employment	3 months
Share based compensation description of 2012 plan	The number of shares that have been authorized for issuance under the 2012 Plan will be automatically increased on the first day of each fiscal year beginning in fiscal 2014 and ending in fiscal 2023, in an amount equal to the least of (i) 2,000,000 shares, (ii) 4% of the outstanding shares of the Company's common stock on the last day of the immediately preceding fiscal year, or (iii) another amount determined by the Company's board of directors.
The 2012 Plan | Stock option to purchase common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Available for option grants	2,474,070		1,409,021
The 2012 Plan | Stock option to purchase common stock | Authorized Shares Increased Option One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for issuance	2,000,000
The 2012 Plan | Stock option to purchase common stock | Authorized Shares Increased Option Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding shares of our common stock in percentage	4.00%
The 2000 Plan or The 2010 Plan | Stock option to purchase common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding awards forfeited or terminated	1,750,614
Scenario, Forecast | The 2012 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of additional share authorized		1,190,311

StockBased_Compensation_Stock_

Stock-Based Compensation - Stock Option Plan (Detail) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Apr. 30, 2015	Jan. 31, 2015
Share Available for Grant
Beginning Balance	1,409,021
Additional options authorized	1,190,311
Options granted	-194,207
Options expired and forfeited	25,104
RSUs expired	43,841
SPRs exercised	0
Options exercised	0
Ending Balance	2,474,070	1,409,021
Stock Options, SPRs and CSPAs Outstanding
Beginning Balance	3,586,791
Options granted	194,207
Options expired and forfeited	-25,104
SPRs exercised	-3,005
Options exercised	-2,000
Ending Balance	3,750,889	3,586,791
Vested and expected to vest	3,597,524
Vested	2,214,876
Weight Average Exercise Price
Beginning Balance	$1.89
Options granted	$1.37
Options expired and forfeited	$2.48
SPRs exercised	$0.30
Options exercised	$0.30
Ending Balance	$1.86	$1.89
Vested and expected to vest	$1.85
Vested	$1.58
Average remaining contractual life
Average remaining contractual life	7 years 1 month 6 days	7 years 2 months 12 days
Vested and expected to vest	7 years 1 month 6 days
Vested	5 years 10 months 24 days
Aggregate intrinsic value
Beginning Balance	$1,565
Ending Balance	2,371	1,565
Vested and expected to vest	2,358
Vested	$2,253

Summary_of_Restricted_Stock_Un

Summary of Restricted Stock Unit Activity (Detail) (Restricted Stock Units (RSUs), USD $)	3 Months Ended
	Apr. 30, 2015
Restricted Stock Units (RSUs)
Restricted Stock Outstanding
Beginning Balance	342,408
Released	-1,000
Forfeited	-43,841
Ending Balance	297,567
Weighted Average Fair Value at Grant Date
Beginning Balance	$5.97
Released	$1.45
Forfeited	$6.11
Ending Balance	$6.45

Stock_Based_Compensation_Expen

Stock - Based Compensation Expense (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Apr. 30, 2015	Apr. 30, 2014
Stock-based compensation expense	$280	$613
Cost of revenue
Stock-based compensation expense	10	7
Research and development
Stock-based compensation expense	10	35
Sales and marketing
Stock-based compensation expense	49	82
General and administrative
Stock-based compensation expense	$211	$489

Weighted_Average_Assumptions_U

Weighted - Average Assumptions Used to Estimate Fair Value (Detail)	3 Months Ended
	Apr. 30, 2015	Apr. 30, 2014
Expected term (in years)	6 years 3 months	6 years 3 months
Volatility	75.00%	71.00%
Risk-free interest rate	1.75%	2.00%
Expected dividend	0.00%	0.00%

Net_Loss_Per_Share_Detail

Net Loss Per Share (Detail) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Apr. 30, 2015	Apr. 30, 2014
Numerator:
Net loss	($799)	($4,530)
Denominator:
Shares used in computing net loss per share attributable to common stockholders, basic and diluted	27,716,948	27,141,757
Net loss per share attributable to common stockholders, basic and diluted	($0.03)	($0.17)

Outstanding_Shares_of_Common_S

Outstanding Shares of Common Stock Equivalents Excluded From Computation of Diluted Net Loss Per Share Attributable To Common Stock (Detail)	3 Months Ended
	Apr. 30, 2015	Apr. 30, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Outstanding shares of common stock equivalents	4,084,456	3,944,497
Stock Options to Purchase Common Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Outstanding shares of common stock equivalents	3,263,951	3,061,528
Shares purchased with notes (SPRs and CSPAs)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Outstanding shares of common stock equivalents	486,938	489,943
Common Stock Warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Outstanding shares of common stock equivalents	36,000	36,000
Restricted Stock Units (RSUs)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Outstanding shares of common stock equivalents	297,567	357,026

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended
	Apr. 30, 2015	Apr. 30, 2014
Income Taxes [Line Items]
Income tax benefit	($120,000)	($28,000)
Gross unrecognized tax benefits, provisions for estimated interest and penalties	1,500,000	1,400,000
Unrecognized tax benefits that would impact the provision for income taxes	1,300,000
Unrecognized tax benefits that would be recognized within the coming 12 months	324,000
FRANCE
Income Taxes [Line Items]
Unrecognized tax benefit offset	$277,000	$165,000
Minimum
Income Taxes [Line Items]
Other foreign jurisdictions range limitations	3 years
Maximum
Income Taxes [Line Items]
Other foreign jurisdictions range limitations	6 years

Segment_Information_Additional

Segment Information - Additional Information (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Apr. 30, 2015	Apr. 30, 2014
	Segment
Revenues from External Customers and Long-Lived Assets [Line Items]
Operating segments	1
Revenues	$9,513	$8,414
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$5,600	$2,600
Non U S
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of country accounted for more than 10% Of Revenues	0

Revenue_by_Geographic_Region_B

Revenue by Geographic Region, Based on Location at Which Each Sale Originates (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Apr. 30, 2015	Apr. 30, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$9,513	$8,414
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	5,744	2,966
Asia Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	1,897	2,415
EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$1,872	$3,033

Property_and_Equipment_Net_by_

Property and Equipment, Net, by Geographic Region (Detail) (USD $)	Apr. 30, 2015	Jan. 31, 2015
In Thousands, unless otherwise specified
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	$4,248	$3,590
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	2,748	2,021
FRANCE
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	1,488	1,557
United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	3	4
Asia Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	$9	$8

Customers_Representing_Ten_Per

Customers Representing Ten Percent or Greater of Total Revenue (Detail) (Customer Concentration Risk, Sales Revenue, Net)	3 Months Ended
	Apr. 30, 2015		Apr. 30, 2014
Comcast Cable
Revenue, Major Customer [Line Items]
Concentration risk, percentage	45.00%		29.00%
Time Warner Cable
Revenue, Major Customer [Line Items]
Concentration risk, percentage	12.00%			[1]
Huawei Technologies Co., Ltd
Revenue, Major Customer [Line Items]
Concentration risk, percentage		[1]	10.00%
[1]	Less than 10%

Customers_Representing_Ten_Per1

Customers Representing Ten Percent or Greater of Total Accounts Receivable (Detail) (Customer Concentration Risk, Accounts Receivable, Comcast Cable)	3 Months Ended
	Apr. 30, 2015	Jan. 31, 2015
Customer Concentration Risk | Accounts Receivable | Comcast Cable
Revenue, Major Customer [Line Items]
Concentration risk, percentage	35.00%	19.00%