Exa (EXA) 10-Q 4 Dec 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Oct. 31, 2014	Dec. 01, 2014
Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	31-Oct-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'
Trading Symbol	'EXA	'
Entity Registrant Name	'EXA CORP	'
Entity Central Index Key	'0000890264	'
Current Fiscal Year End Date	'--01-31	'
Entity Filer Category	'Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	13,837,397

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Oct. 31, 2014	Jan. 31, 2014
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$23,944	$28,753
Accounts receivable	7,004	27,245
Prepaid expenses and other current assets	2,121	4,321
Total current assets	33,069	60,319
Property and equipment, net	7,644	7,356
Intangible assets, net	2,482	2,745
Deferred tax assets	41	13,306
Other assets	1,125	1,123
Total assets	44,361	84,849
Current liabilities:	'	'
Accounts payable	802	1,684
Accrued expenses	6,715	10,285
Current portion of deferred revenue	11,735	30,594
Current maturities of capital lease obligations	2,433	2,426
Total current liabilities	21,685	44,989
Deferred revenue	10	273
Capital lease obligations	2,085	2,695
Deferred rent	560	831
Other long-term liabilities	505	528
Total liabilities	24,845	49,316
Commitments and contingencies (Note 9)	'	'
Stockholders' equity:	'	'
Preferred stock, $0.001 par value; 5,000,000 shares authorized; no shares issued and outstanding	0	0
Common stock, $0.001 par value; 30,000,000 shares authorized; 13,869,899 and 13,388,712 shares issued, respectively; 13,837,397 and 13,356,210 shares outstanding, respectively	14	13
Additional paid-in capital	87,352	85,201
Accumulated deficit	-67,730	-49,721
Treasury stock (32,502 common shares, at cost)	0	0
Accumulated other comprehensive (loss) income	-120	40
Total stockholders' equity	19,516	35,533
Total liabilities and stockholders' equity	$44,361	$84,849

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Oct. 31, 2014	Jan. 31, 2014
Statement of Financial Position [Abstract]	'	'
Preferred stock, par value	$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	$0.00	$0.00
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	13,869,899	13,388,712
Common stock, shares outstanding	13,837,397	13,356,210
Treasury stock, shares	32,502	32,502

Consolidated_Statements_of_Ope

Consolidated Statements of Operations and Comprehensive Income (Loss) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2014	Oct. 31, 2013
Revenue:	'	'	'	'
License revenue	$12,866	$11,121	$36,842	$32,532
Project revenue	3,092	2,987	7,729	6,768
Total revenues	15,958	14,108	44,571	39,300
Operating expenses:	'	'	'	'
Cost of revenues	4,562	4,023	13,790	11,527
Sales and marketing	2,442	2,243	7,518	6,539
Research and development	5,462	4,428	15,968	13,264
General and administrative	3,171	2,736	9,510	7,933
Total operating expenses	15,637	13,430	46,786	39,263
Income (loss) from operations	321	678	-2,215	37
Other income (expense), net:	'	'	'	'
Foreign exchange gain (loss)	194	31	325	-25
Interest expense	-88	-71	-265	-628
Interest income	3	4	9	13
Loss on extinguishment of debt	'	'	'	-755
Other income, net	4	2	7	7
Total other income (expense), net	113	-34	76	-1,388
Income (loss) before income taxes	434	644	-2,139	-1,351
(Provision) benefit for income taxes	-214	-128	-15,870	528
Net income (loss)	220	516	-18,009	-823
Net income (loss) per share:	'	'	'	'
Basic	$0.02	$0.04	($1.31)	($0.06)
Diluted	$0.02	$0.04	($1.31)	($0.06)
Weighted average shares outstanding used in computing net income (loss) per share:	'	'	'	'
Basic	13,822,400	13,341,235	13,701,380	13,318,839
Diluted	14,749,825	14,706,263	13,701,380	13,318,839
Comprehensive income (loss):	'	'	'	'
Net income (loss)	220	516	-18,009	-823
Foreign currency translation adjustments	-126	64	-160	76
Comprehensive income (loss)	$94	$580	($18,169)	($747)

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Oct. 31, 2014	Oct. 31, 2013
Cash flows (used in) provided by operating activities:	'	'
Net income (loss)	($18,009)	($823)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:	'	'
Depreciation and amortization	2,157	1,561
Stock-based compensation expense	1,403	846
Deferred rent expense	-267	-424
Non-cash interest	'	162
Loss on extinguishment of debt, non-cash portion	'	465
Deferred income taxes	15,209	-1,614
Net change in operating assets and liabilities:	'	'
Accounts receivable	20,432	20,398
Prepaid expenses and other current assets	258	-201
Other assets	-2	-55
Accounts payable	-874	-887
Accrued expenses	-3,415	-1,107
Other liabilities	-23	84
Deferred revenue	-18,942	-13,978
Net cash (used in) provided by operating activities	-2,073	4,427
Cash flows used in investing activities:	'	'
Purchases of property and equipment	-684	-674
Net cash used in investing activities	-684	-674
Cash flows used in financing activities:	'	'
Proceeds from stock option exercises	749	173
Payments of long-term debt	'	-7,365
Payments of capital lease obligations	-2,303	-1,532
Payment of debt issuance costs	'	-213
Net cash used in financing activities	-1,554	-8,937
Effect of exchange rate changes on cash	-498	-93
Net decrease in cash and cash equivalents	-4,809	-5,277
Cash and cash equivalents, beginning of period	28,753	30,716
Cash and cash equivalents, end of period	23,944	25,439
Supplemental cash flow disclosures:	'	'
Cash paid for interest	265	533
Cash paid for income taxes	1,282	289
Supplemental disclosure of non-cash investing and financing activities:	'	'
Acquisition of equipment through capital leases	$1,700	$563

Description_of_Business

Description of Business	9 Months Ended
	Oct. 31, 2014
Accounting Policies [Abstract]	'
Description of Business	'
	1. Description of Business
	Exa Corporation (the “Company” or “Exa”), a Delaware corporation, develops, sells and supports simulation software and services used primarily by vehicle manufacturers to enhance the performance of their products, reduce product development costs and improve the efficiency of their design and engineering processes. The Company’s solutions enable engineers and designers to augment or replace conventional methods of evaluating designs that rely on expensive and inefficient physical prototypes and test facilities with accurate digital simulations that are more useful, cost effective and timely. The Company’s simulation solutions enable customers to gain crucial insights about design performance early in the design cycle, reducing the likelihood of expensive redesigns and late-stage engineering changes, which result in cost savings and fundamental improvements in the development process. The Company is primarily focused on the ground transportation market, but is also exploring the application of its capabilities in the aerospace, oil and gas production, chemical processing, architecture, engineering and construction, power generation, biomedical and electronics industries.
	Exa has offices and sells directly in the United States and through subsidiaries in France, Germany, Italy, Japan, Korea, China, and the United Kingdom. The Company also conducts business in Sweden, India, Brazil, Russia, Canada, Finland, Spain and Australia.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	9 Months Ended
	Oct. 31, 2014
Accounting Policies [Abstract]	'
Summary of Significant Accounting Policies	'
	2. Summary of Significant Accounting Policies
	Applicable Accounting Guidance
	Any reference in these notes to applicable accounting guidance is meant to refer to the authoritative United States generally accepted accounting principles (“GAAP”) as found in the Financial Accounting Standards Board’s (“FASB”) Accounting Standards Codification (“ASC”).
	Basis of Presentation
	The accompanying unaudited consolidated financial statements have been prepared by the Company in accordance with GAAP for interim financial information and pursuant to the rules and regulations of the Securities and Exchange Commission regarding interim financial reporting. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements and should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended January 31, 2014. These financial statements reflect all adjustments (consisting solely of normal, recurring adjustments) that are, in the opinion of management, necessary for a fair statement of results for the interim periods presented.
	Use of Estimates
	The preparation of financial statements in conformity with GAAP requires management to make significant estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Changes in estimates are recorded in the period in which they become known. The Company bases its estimates on historical experience and various other assumptions that it believes to be reasonable under the circumstances. Actual results could differ from management’s estimates if future events differ substantially from past experience, or other assumptions, which reasonable when made, do not turn out to be substantially accurate.
	Internal Use Software
	Costs incurred in the research and development of the Company’s software products are expensed as incurred. Costs incurred during the application development stage of internal-use software projects, such as those used to develop internal systems, are capitalized. Capitalized costs include external consulting fees and payroll and payroll-related costs for employees in the Company’s development and information technology groups who are directly associated with, and who devote time to, the Company’s internal-use software projects during the application development stage. Capitalization begins when the planning stage is complete and the Company commits resources to the software project. Amortization of the asset commences when the software is complete and placed in service. The Company amortizes completed internal-use software over its estimated useful life. Costs incurred during the planning, training and post-implementation stages of the software development life-cycle are expensed as incurred. Costs related to upgrades and enhancements of existing internal-use software that increase the functionality of the software are also capitalized.
	Recent Accounting Pronouncements
	In July 2013, the FASB issued ASU No. 2013-11, Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists (ASU 2013-11). ASU 2013-11 clarifies guidance and eliminates diversity in practice on the presentation of unrecognized tax benefits when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists at the reporting date. This new guidance was effective for the Company in the first quarter of fiscal year 2015. The Company adopted ASU 2013-11 on February 1, 2014. This adoption did not have a material impact on the Company’s consolidated financial statements.
	In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (ASU 2014-09), which supersedes nearly all existing revenue recognition guidance under GAAP. The core principle of ASU 2014-09 is to recognize revenues when promised goods or services are transferred to customers in an amount that reflects the consideration to which an entity expects to be entitled for those goods or services. ASU 2014-09 defines a five-step process to achieve this core principle and, as a result of which, more judgment and estimates may be required within the revenue recognition process than are required under existing GAAP. The standard is effective for annual periods beginning after December 15, 2016, and interim periods therein, using either of the following transition methods: (i) a full retrospective approach reflecting the application of the standard in each prior reporting period with the option to elect certain practical expedients, or (ii) a retrospective approach with the cumulative effect of initially adopting ASU 2014-09 recognized at the date of adoption (which includes additional footnote disclosures). The Company is currently evaluating the impact of its pending adoption of ASU 2014-09 on its consolidated financial statements and has not yet determined the method by which it will adopt the standard in fiscal year 2018.
	In June 2014, the FASB issued ASU 2014-12, which is a standards update on accounting for share-based payments when the terms of the award provide that a performance target could be achieved after a requisite service period. The standard is effective for annual periods beginning after December 31, 2015, and interim periods therein, with early adoption permitted. This ASU is not expected to have an impact on the Company’s financial statements or disclosures.
	In August 2014, the FASB issued ASU No. 2014-15, Presentation of Financial Statements – Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern. Under the new guidance, management will be required to assess an entity’s ability to continue as a going concern, and to provide related footnote disclosures in certain circumstances. The provisions of this ASU are effective for annual periods beginning after December 15, 2016, and for interim periods therein. This ASU is not expected to have an impact on the Company’s financial statements or disclosures.

Computation_of_Net_Income_Loss

Computation of Net Income (Loss) Per Share	9 Months Ended
	Oct. 31, 2014
Earnings Per Share [Abstract]	'
Computation of Net Income (Loss) Per Share	'
	3. Computation of Net Income (Loss) Per Share
	Net income (loss) per share has been computed using the weighted average number of shares of common stock outstanding during each period. Diluted amounts per share include the impact of the Company’s outstanding potential common shares, such as shares issuable upon exercise of in-the-money stock options or warrants, when dilutive. Potential common shares that are anti-dilutive are excluded from the calculation of diluted net income (loss) per common share.
	The following summarizes the calculation of basic and diluted net income (loss) per share:
		Three Months Ended October 31,				Nine Months Ended October 31,
		2014		2013		2014			2013
	Numerator:
	Net income (loss)	$	220	$	516	$	(18,009	)	$	(823	)
	Denominator:
	Weighted average common shares, basic		13,822,400		13,341,235		13,701,380			13,318,839
	Dilutive effect of:
	Options to purchase common and preferred stock		898,619		1,351,169		—			—
	Warrants to purchase common stock		9,285		12,118		—			—
	Restricted stock units		19,521		1,741		—			—
	Weighted average common shares, diluted		14,749,825		14,706,263		13,701,380			13,318,839
	Basic net income (loss) per share	$	0.02	$	0.04	$	(1.31	)	$	(0.06	)
	Diluted net income (loss) per share	$	0.02	$	0.04	$	(1.31	)	$	(0.06	)
	The table below represents outstanding options, restricted stock unit awards and warrants that were excluded from the computation of diluted net loss per share for the periods indicated because including them would have had an anti-dilutive effect. All of the Company’s outstanding stock options, unvested restricted stock units and warrants were anti-dilutive for the nine months ended October 31, 2014 due to the net loss position of the Company.
		Three Months Ended October 31,				Nine Months Ended October 31,
		2014		2013		2014			2013
	Options, restricted stock unit awards and warrants to purchase common and preferred stock		1,633,635		692,165		2,785,477			2,324,500

Property_and_Equipment_net

Property and Equipment, net	9 Months Ended
	Oct. 31, 2014
Property, Plant and Equipment [Abstract]	'
Property and Equipment, net	'
	4. Property and Equipment, net
	Property and equipment, net consists of the following:
		October 31,			January 31,
		2014			2014
	Computer software and equipment	$	20,742		$	18,635
	Office equipment and furniture		444			444
	Leasehold improvements		2,611			2,627
	Total property and equipment		23,797			21,706
	Less: accumulated depreciation and amortization		(16,153	)		(14,350	)
	Property and equipment, net	$	7,644		$	7,356
	For the three and nine months ended October 31, 2014, depreciation and amortization expense was $675 and $1,894, respectively. For the three and nine months ended October 31, 2013, depreciation and amortization expense was $434 and $1,298, respectively. Included in computer software and equipment and office equipment and furniture is equipment held pursuant to capital leases with costs of $18,415 and $16,802 and accumulated amortization of $12,313 and $10,997 as of October 31, 2014 and January 31, 2014, respectively.
	During the nine months ended October 31, 2014, the Company capitalized $80 of hardware, software, external consulting fees and payroll and payroll-related costs for the development and implementation of internal-use software applications, which is included in computer software and equipment. Also included in computer software and equipment is accumulated amortization of $6 at October 31, 2014. The Company implemented the software during the second quarter of fiscal year 2015 to be used primarily for accounting and reporting applications.

Accrued_Expenses

Accrued Expenses	9 Months Ended
	Oct. 31, 2014
Payables and Accruals [Abstract]	'
Accrued Expenses	'
	5. Accrued Expenses
	Accrued expenses consist of the following:
		October 31,		January 31,
		2014		2014
	Accrued payroll	$	1,660	$	1,603
	Sales and withholding taxes		762		3,158
	Accrued commissions and bonuses		1,369		2,456
	Accrued income taxes payable		702		571
	Deferred rent, current portion		603		602
	Legal and professional		649		489
	Other accrued expenses		970		1,406
	Total accrued expenses	$	6,715	$	10,285

Deferred_Rent

Deferred Rent	9 Months Ended
	Oct. 31, 2014
Text Block [Abstract]	'
Deferred Rent	'
	6. Deferred Rent
	In connection with its corporate headquarters lease entered into in July 2008, the Company received a tenant improvement allowance of $1,958 from the landlord. This lease incentive was recorded as leasehold improvements and deferred rent and is being amortized as part of rent expense on a straight-line basis over the life of the lease. The Company’s subsidiary Euroxa S.a.r.l. entered into a new office lease in Paris, France in May 2012 with a landlord incentive totaling $148, equivalent to four months free rent, which is also being amortized as rent expense on a straight line basis over the life of the lease. In addition, the Company’s facility leases typically contain other than straight-line payment features. The difference between the straight-line rent expense of the lease and the cash payments is recorded as deferred rent. Deferred rent is as follows:
		October 31,			January 31,
		2014			2014
	Leasehold improvement incentive	$	374		$	572
	Non-cash rent expense		789			861
	Total deferred rent		1,163			1,433
	Less: current portion included in accrued expenses		(603	)		(602	)
	Deferred rent, net of current portion	$	560		$	831

Fair_Value_Measurements

Fair Value Measurements	9 Months Ended
	Oct. 31, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	7. Fair Value Measurements
	Financial instruments consist primarily of cash and cash equivalents, accounts receivable and capital lease obligations. As of October 31, 2014 and January 31, 2014, the carrying amounts of these instruments approximate their fair values. The estimated fair values have been determined from information obtained from market sources and management estimates.
	In determining the fair value of its financial assets and liabilities, the Company uses various valuation approaches. ASC 820, Fair Value Measurements and Disclosures, establishes a hierarchy of inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that observable inputs be used when available. Observable inputs are inputs that market participants would use in pricing the asset or liability based on market data obtained from sources independent of the Company. Unobservable inputs are inputs that reflect the Company’s assumptions about the inputs that market participants would use in pricing the asset or liability, and are developed based on the best information available in the circumstances. The fair value hierarchy is broken down into three levels based on the source of inputs as follows:
	Level 1 – Valuations based on unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access.
	Level 2 – Valuations based on 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 and models for which all significant inputs are observable, either directly or indirectly.
	Level 3 – Valuations based on inputs that are unobservable and significant to the overall fair value measurement and that are based on management’s best estimate of inputs market participants would use for pricing the asset or liability at the measurement date, including assumptions about risk.
	The following table summarizes the Company’s fair value hierarchy for its financial assets and liabilities measured at fair value as of October 31, 2014:
		Total		Level 1		Level 2		Level 3
	Assets:
	Money market funds	$	16,013	$	16,013	$	—	$	—
	The following table summarizes the Company’s fair value hierarchy for its financial assets and liabilities measured at fair value as of January 31, 2014:
		Total		Level 1		Level 2		Level 3
	Assets:
	Money market funds	$	15,008	$	15,008	$	—	$	—
	The availability of observable inputs can vary among the various types of financial assets and liabilities. To the extent that the valuation is based on models or inputs that are less observable or unobservable in the market, the determination of fair value requires more judgment. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, for financial statement disclosure purposes, the level in the fair value hierarchy within which the fair value measurement is categorized is based on the lowest level input that is significant to the overall fair value measurement.

Acquired_Intangible_Assets

Acquired Intangible Assets	9 Months Ended
	Oct. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Acquired Intangible Assets	'
	8. Acquired Intangible Assets
	Intangible assets acquired in a business combination are recorded under the purchase method of accounting at their estimated fair values at the date of acquisition. The Company amortizes acquired intangible assets over their estimated useful lives.
	The following table reflects the carrying value of intangible assets as of October 31, 2014:
		October 31, 2014
		Cost		Accumulated			Net Book
				Amortization			Value
	Intellectual property	$	3,505	$	(1,023	)	$	2,482
	Access to facilities contract		38		(38	)		—
	Total	$	3,543	$	(1,061	)	$	2,482
	The following table reflects the carrying value of intangible assets as of January 31, 2014:
		January 31, 2014
		Cost		Accumulated			Net Book
				Amortization			Value
	Intellectual property	$	3,505	$	(760	)	$	2,745
	Access to facilities contract		38		(38	)		—
	Total	$	3,543	$	(798	)	$	2,745
	For the three and nine months ended October 31, 2014 and October 31, 2013, amortization expense of intangible assets was $88 and $263, respectively.

Commitments_and_Contingencies

Commitments and Contingencies	9 Months Ended
	Oct. 31, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	9. Commitments and Contingencies
	Legal Contingencies
	From time to time the Company is involved in legal proceedings arising in the ordinary course of business. There is no litigation pending that could, individually or in the aggregate, have a material adverse effect on the Company’s financial position, results of operations, or cash flows. In 2011, the Company was notified by the Massachusetts Institute of Technology, or MIT, that MIT believes that the Company is utilizing the intellectual property covered by a license agreement between the Company and MIT, and therefore is in arrears in the payment of royalties under the agreement. The Company has advised MIT that it does not believe that the Company utilized the underlying technology at any time since at least 1998, or that any royalties are owed under the agreement. MIT has not commenced suit against the Company with respect to its claims, and if any such suit is commenced by MIT, the Company intends to defend it vigorously. The Company believes that if MIT were to prevail in any such litigation, the royalties due under the terms of the license agreement, after giving effect to the approximately $200 in minimum royalties that the Company has already paid, would not exceed approximately $2,600 (excluding any interest or costs of litigation). The Company has not concluded that a loss in connection with the MIT claim is probable.
	Guarantees and Indemnification Obligations
	The Company enters into standard indemnification agreements in the ordinary course of business. Pursuant to these agreements, the Company indemnifies, holds harmless, and agrees to reimburse the indemnified party for losses suffered or incurred by the indemnified party, generally the Company’s business partners or customers, in connection with any United States patent, or any copyright or other intellectual property infringement claim by any third party with respect to the Company’s products. The term of these indemnification provisions is generally perpetual after execution of the agreement. The maximum potential amount of future payments the Company could be required to make under these agreements is unlimited.
	Based on historical experience and information known as of October 31, 2014 and January 31, 2014, the Company has not recorded any liabilities for the above guarantees and indemnities.

StockBased_Compensation

Stock-Based Compensation	9 Months Ended
	Oct. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Stock-Based Compensation	'
	10. Stock-Based Compensation
	The fair value of common stock service-based options for employees and directors is estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted average assumptions used:
		Nine Months Ended October 31,
		2014			2013
	Estimated dividend yield		0	%		0	%
	Expected stock price volatility		47.4	%		50.6	%
	Weighted-average risk-free interest rate		2.2	%		2.2	%
	Expected life of options (in years)		6.25			6.25
	The weighted average grant date fair value per share for service-based stock options granted in the three and nine months ended October 31, 2014 was $5.04 and $5.48, respectively.
	Total stock-based compensation expense related to service-based stock options and restricted stock units issued by the Company is as follows:
		Three Months Ended October 31,						Nine Months Ended October 31,
		2014			2013			2014		2013
	Cost of revenues	$	52		$	35		$	134	$	99
	Sales and marketing		88			67			249		169
	Research and development		200			110			547		264
	General and administrative		193			138			473		314
	Total	$	533		$	350		$	1,403	$	846
	The total unrecognized compensation cost related to outstanding service-based stock options is $4,424 at October 31, 2014. This amount is expected to be recognized over a weighted-average period of 2.94 years.
	On June 10, 2014, the Company’s stockholders approved the amendment and restatement of the Company’s 2011 Stock Incentive Plan. As a result, the number of shares available to be issued under the plan increased from 769,230 to 1,769,230 shares of common stock. Following this approval, the Company granted performance-based options to purchase an aggregate of 292,500 shares of common stock. The majority of the performance-based options are eligible to vest if certain specified targets are met in fiscal years 2015, 2016 and 2017. Performance-based stock options are recognized as expense over the requisite service period when it becomes probable that performance measures triggering vesting will be met. As of October 31, 2014, the Company has concluded that it is not probable that any of the performance-based stock options will achieve the required metrics for vesting. As a result, the Company has not recognized any share-based compensation expense associated with these options.

Income_Taxes

Income Taxes	9 Months Ended
	Oct. 31, 2014
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	11. Income Taxes
	For the three and nine months ended October 31, 2014, the Company’s income tax provision was $214 and $15,870, respectively. The provision for the three months ended October 31, 2014 primarily consists of foreign income taxes and withholding taxes. The provision for the nine months ended October 31, 2014 includes a $14,506 non-cash charge to record a valuation allowance against the Company’s United States net deferred tax assets and a $700 non-cash write-off of state deferred tax assets (discussed further below). Through the three months ended April 30, 2014, the Company’s results reflected a three-year cumulative loss position in the United States; prior thereto, the Company’s historical results reflected a three-year cumulative profit. Reflecting management’s plans to continue investing in the business for future growth, management’s projections reflect the Company continuing in a three-year cumulative loss position through fiscal year 2015. This historical loss position at April 30, 2014 and projected cumulative loss position caused management to modify its assessment of its deferred tax assets, concluding that it no longer was more likely than not that these deferred tax assets would be realized and thus, a valuation allowance was necessary against the full amount of its United States net deferred tax assets.
	Management will reassess the realization of the deferred tax assets each reporting period. To the extent that the financial results of the Company’s United States operations improve and the deferred tax asset becomes realizable, the Company will reduce the valuation allowance through earnings.
	Under Section 382 of the Internal Revenue Code of 1986, as amended, substantial changes in the Company’s ownership may limit the amount of net operating loss carryforwards that can be utilized annually in the future to offset its United States federal taxable income. Specifically, this limitation may arise in the event of a cumulative change in ownership of the Company of more than 50% within a three-year period. During the first quarter of fiscal year 2015, management determined that the Company had experienced an ownership change for purposes of Section 382. This ownership change resulted in annual limitations to the amount of net operating loss carryforwards that can be utilized to offset future taxable income, if any, at the federal level. The annual limit is approximately $14,032 for fiscal year 2015, $16,758 for each of fiscal years 2016 through 2019, $8,046 for fiscal year 2020 and $6,366 for each fiscal year thereafter. The ownership change also resulted in the loss of the Company’s ability to utilize $700 of its $810 of state net operating loss carryforwards, credits and other state attributes, which resulted in a write-off of the $700 of state deferred tax assets during the first quarter of fiscal year 2015.
	The Company does not expect that its unrecognized tax benefit will change significantly within the next twelve months. The Company and one or more of its subsidiaries file United States federal income tax returns and tax returns in various state and foreign jurisdictions. With limited exceptions, the Company is no longer subject to federal, state, local or foreign examinations for years prior to January 31, 2011. However, carryforward attributes that were generated prior to January 31, 2011 may still be adjusted upon examination by state or local tax authorities if they either have been or will be used in a future period.

Geographic_Information

Geographic Information	9 Months Ended
	Oct. 31, 2014
Segment Reporting [Abstract]	'
Geographic Information	'
	12. Geographic Information
	Revenue is attributed to individual countries based upon location of the external customer. Revenue by geographic area is as follows:
		Three Months Ended October 31,				Nine Months Ended October 31,
		2014		2013		2014		2013
	United States	$	4,332	$	3,099	$	10,616	$	8,588
	Japan		2,339		2,492		6,857		6,320
	Germany		3,026		2,615		8,555		7,273
	France		2,361		2,475		6,597		6,915
	Korea		1,319		1,211		3,974		3,498
	United Kingdom		1,220		1,233		3,609		3,497
	Sweden		501		489		1,846		1,716
	Other		860		494		2,517		1,493
	Total	$	15,958	$	14,108	$	44,571	$	39,300
	Net long-lived assets, consisting of net property and equipment, are subject to geographic risks because they are generally difficult to move and to effectively utilize in another geographic area in a reasonable time period and because they are relatively illiquid.
	Net long-lived assets by principal geographic areas were as follows:
		October 31,		January 31,
		2014		2014
	United States	$	6,575	$	6,098
	France		709		849
	Germany		162		117
	Japan		117		201
	Other		81		91
	Total property and equipment, net	$	7,644	$	7,356

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Oct. 31, 2014
Accounting Policies [Abstract]	'
Applicable Accounting Guidance	'
	Applicable Accounting Guidance
	Any reference in these notes to applicable accounting guidance is meant to refer to the authoritative United States generally accepted accounting principles (“GAAP”) as found in the Financial Accounting Standards Board’s (“FASB”) Accounting Standards Codification (“ASC”).
Basis of Presentation	'
	Basis of Presentation
	The accompanying unaudited consolidated financial statements have been prepared by the Company in accordance with GAAP for interim financial information and pursuant to the rules and regulations of the Securities and Exchange Commission regarding interim financial reporting. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements and should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended January 31, 2014. These financial statements reflect all adjustments (consisting solely of normal, recurring adjustments) that are, in the opinion of management, necessary for a fair statement of results for the interim periods presented.
Use of Estimates	'
	Use of Estimates
	The preparation of financial statements in conformity with GAAP requires management to make significant estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Changes in estimates are recorded in the period in which they become known. The Company bases its estimates on historical experience and various other assumptions that it believes to be reasonable under the circumstances. Actual results could differ from management’s estimates if future events differ substantially from past experience, or other assumptions, which reasonable when made, do not turn out to be substantially accurate.
Internal Use Software	'
	Internal Use Software
	Costs incurred in the research and development of the Company’s software products are expensed as incurred. Costs incurred during the application development stage of internal-use software projects, such as those used to develop internal systems, are capitalized. Capitalized costs include external consulting fees and payroll and payroll-related costs for employees in the Company’s development and information technology groups who are directly associated with, and who devote time to, the Company’s internal-use software projects during the application development stage. Capitalization begins when the planning stage is complete and the Company commits resources to the software project. Amortization of the asset commences when the software is complete and placed in service. The Company amortizes completed internal-use software over its estimated useful life. Costs incurred during the planning, training and post-implementation stages of the software development life-cycle are expensed as incurred. Costs related to upgrades and enhancements of existing internal-use software that increase the functionality of the software are also capitalized.
Recent Accounting Pronouncements	'
	Recent Accounting Pronouncements
	In July 2013, the FASB issued ASU No. 2013-11, Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists (ASU 2013-11). ASU 2013-11 clarifies guidance and eliminates diversity in practice on the presentation of unrecognized tax benefits when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists at the reporting date. This new guidance was effective for the Company in the first quarter of fiscal year 2015. The Company adopted ASU 2013-11 on February 1, 2014. This adoption did not have a material impact on the Company’s consolidated financial statements.
	In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (ASU 2014-09), which supersedes nearly all existing revenue recognition guidance under GAAP. The core principle of ASU 2014-09 is to recognize revenues when promised goods or services are transferred to customers in an amount that reflects the consideration to which an entity expects to be entitled for those goods or services. ASU 2014-09 defines a five-step process to achieve this core principle and, as a result of which, more judgment and estimates may be required within the revenue recognition process than are required under existing GAAP. The standard is effective for annual periods beginning after December 15, 2016, and interim periods therein, using either of the following transition methods: (i) a full retrospective approach reflecting the application of the standard in each prior reporting period with the option to elect certain practical expedients, or (ii) a retrospective approach with the cumulative effect of initially adopting ASU 2014-09 recognized at the date of adoption (which includes additional footnote disclosures). The Company is currently evaluating the impact of its pending adoption of ASU 2014-09 on its consolidated financial statements and has not yet determined the method by which it will adopt the standard in fiscal year 2018.
	In June 2014, the FASB issued ASU 2014-12, which is a standards update on accounting for share-based payments when the terms of the award provide that a performance target could be achieved after a requisite service period. The standard is effective for annual periods beginning after December 31, 2015, and interim periods therein, with early adoption permitted. This ASU is not expected to have an impact on the Company’s financial statements or disclosures.
	In August 2014, the FASB issued ASU No. 2014-15, Presentation of Financial Statements – Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern. Under the new guidance, management will be required to assess an entity’s ability to continue as a going concern, and to provide related footnote disclosures in certain circumstances. The provisions of this ASU are effective for annual periods beginning after December 15, 2016, and for interim periods therein. This ASU is not expected to have an impact on the Company’s financial statements or disclosures.

Computation_of_Net_Income_Loss1

Computation of Net Income (Loss) Per Share (Tables)	9 Months Ended
	Oct. 31, 2014
Earnings Per Share [Abstract]	'
Calculation of Basic and Diluted Net Income (Loss) Per Share	'
	The following summarizes the calculation of basic and diluted net income (loss) per share:
		Three Months Ended October 31,				Nine Months Ended October 31,
		2014		2013		2014			2013
	Numerator:
	Net income (loss)	$	220	$	516	$	(18,009	)	$	(823	)
	Denominator:
	Weighted average common shares, basic		13,822,400		13,341,235		13,701,380			13,318,839
	Dilutive effect of:
	Options to purchase common and preferred stock		898,619		1,351,169		—			—
	Warrants to purchase common stock		9,285		12,118		—			—
	Restricted stock units		19,521		1,741		—			—
	Weighted average common shares, diluted		14,749,825		14,706,263		13,701,380			13,318,839
	Basic net income (loss) per share	$	0.02	$	0.04	$	(1.31	)	$	(0.06	)
	Diluted net income (loss) per share	$	0.02	$	0.04	$	(1.31	)	$	(0.06	)
Outstanding Options, Restricted Stock Unit Awards and Warrants Excluded from Computation of Diluted Net Loss Per Share	'
	The table below represents outstanding options, restricted stock unit awards and warrants that were excluded from the computation of diluted net loss per share for the periods indicated because including them would have had an anti-dilutive effect. All of the Company’s outstanding stock options, unvested restricted stock units and warrants were anti-dilutive for the nine months ended October 31, 2014 due to the net loss position of the Company.
		Three Months Ended October 31,				Nine Months Ended October 31,
		2014		2013		2014			2013
	Options, restricted stock unit awards and warrants to purchase common and preferred stock		1,633,635		692,165		2,785,477			2,324,500

Property_and_Equipment_net_Tab

Property and Equipment, net (Tables)	9 Months Ended
	Oct. 31, 2014
Property, Plant and Equipment [Abstract]	'
Schedule of Property and Equipment	'
	Property and equipment, net consists of the following:
		October 31,			January 31,
		2014			2014
	Computer software and equipment	$	20,742		$	18,635
	Office equipment and furniture		444			444
	Leasehold improvements		2,611			2,627
	Total property and equipment		23,797			21,706
	Less: accumulated depreciation and amortization		(16,153	)		(14,350	)
	Property and equipment, net	$	7,644		$	7,356

Accrued_Expenses_Tables

Accrued Expenses (Tables)	9 Months Ended
	Oct. 31, 2014
Payables and Accruals [Abstract]	'
Accrued Expenses	'
	Accrued expenses consist of the following:
		October 31,		January 31,
		2014		2014
	Accrued payroll	$	1,660	$	1,603
	Sales and withholding taxes		762		3,158
	Accrued commissions and bonuses		1,369		2,456
	Accrued income taxes payable		702		571
	Deferred rent, current portion		603		602
	Legal and professional		649		489
	Other accrued expenses		970		1,406
	Total accrued expenses	$	6,715	$	10,285

Deferred_Rent_Tables

Deferred Rent (Tables)	9 Months Ended
	Oct. 31, 2014
Text Block [Abstract]	'
Deferred Rent	'
	Deferred rent is as follows:
		October 31,			January 31,
		2014			2014
	Leasehold improvement incentive	$	374		$	572
	Non-cash rent expense		789			861
	Total deferred rent		1,163			1,433
	Less: current portion included in accrued expenses		(603	)		(602	)
	Deferred rent, net of current portion	$	560		$	831

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	9 Months Ended
	Oct. 31, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Hierarchy for Financial Assets and Liabilities Measured at Fair Value	'
	The following table summarizes the Company’s fair value hierarchy for its financial assets and liabilities measured at fair value as of October 31, 2014:
		Total		Level 1		Level 2		Level 3
	Assets:
	Money market funds	$	16,013	$	16,013	$	—	$	—
	The following table summarizes the Company’s fair value hierarchy for its financial assets and liabilities measured at fair value as of January 31, 2014:
		Total		Level 1		Level 2		Level 3
	Assets:
	Money market funds	$	15,008	$	15,008	$	—	$	—

Acquired_Intangible_Assets_Tab

Acquired Intangible Assets (Tables)	9 Months Ended
	Oct. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Carrying Value of Intangible Assets	'
	The following table reflects the carrying value of intangible assets as of October 31, 2014:
		October 31, 2014
		Cost		Accumulated			Net Book
				Amortization			Value
	Intellectual property	$	3,505	$	(1,023	)	$	2,482
	Access to facilities contract		38		(38	)		—
	Total	$	3,543	$	(1,061	)	$	2,482
	The following table reflects the carrying value of intangible assets as of January 31, 2014:
		January 31, 2014
		Cost		Accumulated			Net Book
				Amortization			Value
	Intellectual property	$	3,505	$	(760	)	$	2,745
	Access to facilities contract		38		(38	)		—
	Total	$	3,543	$	(798	)	$	2,745

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	9 Months Ended
	Oct. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Assumptions Used to Calculate Fair Value of Common Stock Service-based Options for Employees and Directors	'
	The fair value of common stock service-based options for employees and directors is estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted average assumptions used:
		Nine Months Ended October 31,
		2014			2013
	Estimated dividend yield		0	%		0	%
	Expected stock price volatility		47.4	%		50.6	%
	Weighted-average risk-free interest rate		2.2	%		2.2	%
	Expected life of options (in years)		6.25			6.25
Stock-Based Compensation Expense Related to Service-based Stock Options Issued and Restricted Stock Units by the Company	'
	Total stock-based compensation expense related to service-based stock options and restricted stock units issued by the Company is as follows:
		Three Months Ended October 31,						Nine Months Ended October 31,
		2014			2013			2014		2013
	Cost of revenues	$	52		$	35		$	134	$	99
	Sales and marketing		88			67			249		169
	Research and development		200			110			547		264
	General and administrative		193			138			473		314
	Total	$	533		$	350		$	1,403	$	846

Geographic_Information_Tables

Geographic Information (Tables)	9 Months Ended
	Oct. 31, 2014
Segment Reporting [Abstract]	'
Revenue by Geographic Area	'
	Revenue is attributed to individual countries based upon location of the external customer. Revenue by geographic area is as follows:
		Three Months Ended October 31,				Nine Months Ended October 31,
		2014		2013		2014		2013
	United States	$	4,332	$	3,099	$	10,616	$	8,588
	Japan		2,339		2,492		6,857		6,320
	Germany		3,026		2,615		8,555		7,273
	France		2,361		2,475		6,597		6,915
	Korea		1,319		1,211		3,974		3,498
	United Kingdom		1,220		1,233		3,609		3,497
	Sweden		501		489		1,846		1,716
	Other		860		494		2,517		1,493
	Total	$	15,958	$	14,108	$	44,571	$	39,300
Net Long-Lived Assets by Principal Geographic Areas	'
	Net long-lived assets by principal geographic areas were as follows:
		October 31,		January 31,
		2014		2014
	United States	$	6,575	$	6,098
	France		709		849
	Germany		162		117
	Japan		117		201
	Other		81		91
	Total property and equipment, net	$	7,644	$	7,356

Computation_of_Net_Income_Loss2

Computation of Net Income (Loss) Per Share - Calculation of Basic and Diluted Net Income (Loss) Per Share (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2014	Oct. 31, 2013
Numerator:	'	'	'	'
Net income (loss)	$220	$516	($18,009)	($823)
Denominator:	'	'	'	'
Weighted average common shares, basic	13,822,400	13,341,235	13,701,380	13,318,839
Dilutive effect of:	'	'	'	'
Options to purchase common and preferred stock	898,619	1,351,169	'	'
Warrants to purchase common stock	9,285	12,118	'	'
Restricted stock units	19,521	1,741	'	'
Weighted average common shares, diluted	14,749,825	14,706,263	13,701,380	13,318,839
Basic net income (loss) per share	$0.02	$0.04	($1.31)	($0.06)
Diluted net income (loss) per share	$0.02	$0.04	($1.31)	($0.06)

Computation_of_Net_Income_Loss3

Computation of Net Income (Loss) Per Share - Outstanding Options, Restricted Stock Unit Awards and Warrants Excluded from Computation of Diluted Net Loss Per Share (Detail)	3 Months Ended		9 Months Ended
	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2014	Oct. 31, 2013
Earnings Per Share [Abstract]	'	'	'	'
Options, restricted stock unit awards and warrants to purchase common and preferred stock	1,633,635	692,165	2,785,477	2,324,500

Property_and_Equipment_Net_Sch

Property and Equipment, Net - Schedule of Property and Equipment (Detail) (USD $)	Oct. 31, 2014	Jan. 31, 2014
In Thousands, unless otherwise specified
Property, Plant and Equipment [Line Items]	'	'
Total property and equipment	$23,797	$21,706
Less: accumulated depreciation and amortization	-16,153	-14,350
Property and equipment, net	7,644	7,356
Computer Software and Equipment [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Total property and equipment	20,742	18,635
Less: accumulated depreciation and amortization	-6	'
Office Equipment and Furniture [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Total property and equipment	444	444
Leasehold Improvements [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Total property and equipment	$2,611	$2,627

Property_and_Equipment_Net_Add

Property and Equipment, Net - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2014	Oct. 31, 2013	Jan. 31, 2014
Property, Plant and Equipment [Line Items]	'	'	'	'	'
Depreciation and amortization expense	$675	$434	$1,894	$1,298	'
Cost of equipment held pursuant to capital leases	18,415	'	18,415	'	16,802
Accumulated amortization	16,153	'	16,153	'	14,350
Assets Held under Capital Leases [Member]	'	'	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'	'	'
Accumulated amortization	12,313	'	12,313	'	10,997
Internal Use Software [Member]	'	'	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'	'	'
Capitalized internal use software cost	80	'	80	'	'
Computer Software and Equipment [Member]	'	'	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'	'	'
Accumulated amortization	$6	'	$6	'	'

Accrued_Expenses_Accrued_Expen

Accrued Expenses - Accrued Expenses (Detail) (USD $)	Oct. 31, 2014	Jan. 31, 2014
In Thousands, unless otherwise specified
Payables and Accruals [Abstract]	'	'
Accrued payroll	$1,660	$1,603
Sales and withholding taxes	762	3,158
Accrued commissions and bonuses	1,369	2,456
Accrued income taxes payable	702	571
Deferred rent, current portion	603	602
Legal and professional	649	489
Other accrued expenses	970	1,406
Total accrued expenses	$6,715	$10,285

Deferred_Rent_Additional_Infor

Deferred Rent - Additional Information (Detail) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Oct. 31, 2014
Deferred Revenue Disclosure [Abstract]	'
Tenant improvement allowance	$1,958
Total incentive	$148

Deferred_Rent_Deferred_Rent_De

Deferred Rent - Deferred Rent (Detail) (USD $)	Oct. 31, 2014	Jan. 31, 2014
In Thousands, unless otherwise specified
Deferred Revenue Disclosure [Abstract]	'	'
Leasehold improvement incentive	$374	$572
Non-cash rent expense	789	861
Total deferred rent	1,163	1,433
Less: current portion included in accrued expenses	-603	-602
Deferred rent, net of current portion	$560	$831

Fair_Value_Measurements_Fair_V

Fair Value Measurements - Fair Value Hierarchy for Financial Assets and Liabilities Measured at Fair Value (Detail) (Money Market Funds [Member], USD $)	Oct. 31, 2014	Jan. 31, 2014
In Thousands, unless otherwise specified
Assets:	'	'
Money market funds	$16,013	$15,008
Level 1 [Member]	'	'
Assets:	'	'
Money market funds	$16,013	$15,008

Acquired_Intangible_Assets_Car

Acquired Intangible Assets - Carrying Value of Intangible Assets (Detail) (USD $)	Oct. 31, 2014	Jan. 31, 2014
In Thousands, unless otherwise specified
Finite-Lived Intangible Assets [Line Items]	'	'
Cost	$3,543	$3,543
Accumulated Amortization	-1,061	-798
Net Book Value	2,482	2,745
Intellectual Property [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Cost	3,505	3,505
Accumulated Amortization	-1,023	-760
Net Book Value	2,482	2,745
Access to Facilities Contract [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Cost	38	38
Accumulated Amortization	-38	-38
Net Book Value	'	'

Acquired_Intangible_Assets_Add

Acquired Intangible Assets - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2014	Oct. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'	'	'	'
Intangible assets amortization expense	$88	$88	$263	$263

Commitments_and_Contingencies_

Commitments and Contingencies - Additional Information (Detail) (USD $)	Oct. 31, 2014	Jan. 31, 2014
In Thousands, unless otherwise specified
Contingencies And Commitments [Line Items]	'	'
Royalties expenses already paid	$200	'
Recorded liabilities for guarantees and indemnities	0	0
Maximum [Member]	'	'
Contingencies And Commitments [Line Items]	'	'
Royalties due	$2,600	'

StockBased_Compensation_Assump

Stock-Based Compensation - Assumptions Used to Calculate Fair Value of Common Stock Options for Employees and Directors (Detail)	9 Months Ended
	Oct. 31, 2014	Oct. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'	'
Estimated dividend yield	0.00%	0.00%
Expected stock price volatility	47.40%	50.60%
Weighted-average risk-free interest rate	2.20%	2.20%
Expected life of options (in years)	'6 years 3 months	'6 years 3 months

StockBased_Compensation_Additi

Stock-Based Compensation - Additional Information (Detail) (USD $)	3 Months Ended	9 Months Ended	0 Months Ended
In Thousands, except Share data, unless otherwise specified	Oct. 31, 2014	Oct. 31, 2014	Jun. 10, 2014	Jun. 10, 2014	Jun. 10, 2014
			Performance Shares [Member]	2011 Stock Incentive Plan [Member]	Amended And Restated Two Thousand Eleven Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'
Weighted average grant date per share for stock options	$5.04	$5.48	'	'	'
Total unrecognized compensation cost	$4,424	$4,424	'	'	'
Weighted-average period	'	'2 years 11 months 9 days	'	'	'
Common stock shares available to be issued	'	'	'	769,230	1,769,230
Options granted to purchase common stock	'	'	292,500	'	'

StockBased_Compensation_StockB

Stock-Based Compensation - Stock-Based Compensation Expense Related to Stock Options and Restricted Stock Units Issued by the Company (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2014	Oct. 31, 2013
Stock Based Compensation [Line Items]	'	'	'	'
Stock-based compensation expense	$533	$350	$1,403	$846
Cost of Revenues [Member]	'	'	'	'
Stock Based Compensation [Line Items]	'	'	'	'
Stock-based compensation expense	52	35	134	99
Sales and Marketing [Member]	'	'	'	'
Stock Based Compensation [Line Items]	'	'	'	'
Stock-based compensation expense	88	67	249	169
Research and Development [Member]	'	'	'	'
Stock Based Compensation [Line Items]	'	'	'	'
Stock-based compensation expense	200	110	547	264
General and Administrative [Member]	'	'	'	'
Stock Based Compensation [Line Items]	'	'	'	'
Stock-based compensation expense	$193	$138	$473	$314

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended		3 Months Ended
In Thousands, unless otherwise specified	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2014	Oct. 31, 2013	Apr. 30, 2014
					State [Member]
Income Tax Disclosure [Line Items]	'	'	'	'	'
(Provision) benefit for income taxes	($214)	($128)	($15,870)	$528	'
Non-cash charged to valuation allowance	14,506	'	14,506	'	'
Threshold percentage for change in ownership	'	'	50.00%	'	'
Period of change in ownership	'	'	'3 years	'	'
Operating loss carryforwards, 2015	14,032	'	14,032	'	'
Operating loss carryforwards, 2016	16,758	'	16,758	'	'
Operating loss carryforwards, 2017	16,758	'	16,758	'	'
Operating loss carryforwards, 2018	16,758	'	16,758	'	'
Operating loss carryforwards, 2019	16,758	'	16,758	'	'
Operating loss carryforwards, 2020	8,046	'	8,046	'	'
Operating loss carryforwards, thereafter	6,366	'	6,366	'	'
Deferred tax assets written off	'	'	700	'	700
State net operating loss carryforwards	$810	'	$810	'	'
Income tax examination, description	'	'	'With limited exceptions, the Company is no longer subject to federal, state, local or foreign examinations for years prior to January 31, 2011. However, carryforward attributes that were generated prior to January 31, 2011 may still be adjusted upon examination by state or local tax authorities if they either have been or will be used in a future period.	'	'

Geographic_Information_Revenue

Geographic Information - Revenue by Geographic Area (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2014	Oct. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'
Revenue	$15,958	$14,108	$44,571	$39,300
United States [Member]	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'
Revenue	4,332	3,099	10,616	8,588
Japan [Member]	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'
Revenue	2,339	2,492	6,857	6,320
Germany [Member]	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'
Revenue	3,026	2,615	8,555	7,273
France [Member]	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'
Revenue	2,361	2,475	6,597	6,915
Korea [Member]	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'
Revenue	1,319	1,211	3,974	3,498
United Kingdom [Member]	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'
Revenue	1,220	1,233	3,609	3,497
Sweden [Member]	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'
Revenue	501	489	1,846	1,716
Other [Member]	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'
Revenue	$860	$494	$2,517	$1,493

Geographic_Information_Net_Lon

Geographic Information - Net Long-Lived Assets by Principal Geographic Areas (Detail) (USD $)	Oct. 31, 2014	Jan. 31, 2014
In Thousands, unless otherwise specified
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Property and equipment, net	$7,644	$7,356
United States [Member]	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Property and equipment, net	6,575	6,098
France [Member]	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Property and equipment, net	709	849
Germany [Member]	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Property and equipment, net	162	117
Japan [Member]	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Property and equipment, net	117	201
Other [Member]	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Property and equipment, net	$81	$91