Exa (EXA) Inactive 10-K26 Mar 142013 FY Annual reportFinancial data

Company Profile

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
Document and Entity Information (USD $)	Jan. 31, 2014	Mar. 21, 2014	Jul. 31, 2013
Document And Entity Information [Abstract]	'	'	'
Document Type	'10-K	'	'
Amendment Flag	'false	'	'
Document Period End Date	31-Jan-14	'	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'
Entity Registrant Name	'EXA CORP	'	'
Entity Central Index Key	'0000890264	'	'
Current Fiscal Year End Date	'--01-31	'	'
Entity Well-known Seasoned Issuer	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Entity Filer Category	'Accelerated Filer	'	'
Entity Common Stock, Shares Outstanding	'	13,357,123	'
Entity Public Float	'	'	$90,308,131

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Jan. 31, 2014	Jan. 31, 2013
In Thousands, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013
Current assets:	'	'
Cash and cash equivalents	$28,753	$30,716
Accounts receivable	27,245	27,840
Deferred tax assets	2,213	970
Prepaid expenses and other current assets	2,108	1,938
Total current assets	60,319	61,464
Property and equipment, net	7,356	6,176
Intangible assets, net	2,745	3,096
Deferred tax assets	13,306	12,274
Other assets	1,123	1,060
Total assets	84,849	84,070
Current liabilities:	'	'
Accounts payable	1,684	1,743
Accrued expenses	10,285	7,284
Current portion of long-term debt, net of discount	'	1,747	[1]
Current portion of deferred revenue	30,594	26,013
Current maturities of capital lease obligations	2,426	2,051
Total current liabilities	44,989	38,838
Long-term debt, net of current portion and discount	'	5,024	[1]
Deferred revenue	273	128
Capital lease obligations	2,695	2,818
Other long-term liabilities	528	1,009
Deferred rent	831	1,482
Total liabilities	49,316	49,299
Commitments and contingencies (Note 11)	'	'
Stockholders' equity :	'	'
Preferred stock, $0.001 par value; 5,000,000 shares authorized; no shares issued and outstanding	'	'
Common stock, $0.001 par value; 30,000,000 and 195,000,000 shares authorized, respectively; 13,388,712 and 13,319,715 shares issued, respectively; 13,356,210 and 13,287,213 shares outstanding, respectively	13	13
Additional paid-in capital	85,201	83,786
Accumulated deficit	-49,721	-49,012
Treasury stock (32,502 common shares, at cost)	'	'
Accumulated other comprehensive income (loss)	40	-16
Total stockholders' equity	35,533	34,771
Total liabilities and stockholders' equity	$84,849	$84,070

[1]	Includes amounts due to a related party, as follows: January 31, 2014 2013 Current portion of long-term debt $ - $ 274 Long-term debt, net of current portion $ - $ 499

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Jan. 31, 2014	Jan. 31, 2013
In Thousands, except Share data, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013
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	'	'
Preferred stock, shares outstanding	'	'
Common stock, par value	$0.00	$0.00
Common stock, shares authorized	30,000,000	195,000,000
Common stock, shares issued	13,388,712	13,319,715
Common stock, shares outstanding	13,356,210	13,287,213
Treasury stock, shares	32,502	32,502
Due to related party, current portion of long-term debt	'	$274
Due to related party, long-term debt, net of current portion	'	$499

Consolidated_Statements_of_Ope

Consolidated Statements of Operations (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Revenue:	'	'	'
License revenue	$44,579	$41,151	$38,754
Project revenue	9,935	7,717	7,176
Total revenue	54,514	48,868	45,930
Operating expenses:	'	'	'
Cost of revenue	15,959	14,154	12,075
Sales and marketing	9,543	7,115	6,233
Research and development	18,240	16,687	14,449
General and administrative	10,894	8,952	8,138
Total operating expenses	54,636	46,908	40,895
(Loss) income from operations	-122	1,960	5,035
Other expense, net:	'	'	'
Foreign exchange (loss) gain	-83	17	-106
Interest expense	-694	-1,635	-1,289
Interest income	15	4	5
Loss on extinguishment of debt	-755	'	'
Other income (expense), net	10	529	-213
Total other expense, net	-1,507	-1,085	-1,603
(Loss) income before income taxes	-1,629	875	3,432
Benefit (provision) for income taxes	920	-112	10,706
Net (loss) income	($709)	$763	$14,138
Net (loss) income per share:	'	'	'
Basic	($0.05)	$0.10	$28.63
Diluted	($0.05)	$0.06	$1.37
Weighted average shares outstanding used in computing (loss) income per share:	'	'	'
Basic	13,326,883	7,929,364	493,763
Diluted	13,326,883	12,896,487	10,324,811

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive (Loss) Income (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Statement Of Income And Comprehensive Income [Abstract]	'	'	'
Net (loss) income	($709)	$763	$14,138
Other comprehensive income (loss):	'	'	'
Foreign currency translation adjustments	56	37	-111
Total other comprehensive income (loss)	56	37	-111
Comprehensive (loss) income	($653)	$800	$14,027

Consolidated_Statements_of_Sto

Consolidated Statements of Stockholders' Equity (Deficit) (USD $)	Total	Convertible Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
In Thousands, except Share data	USD ($)	USD ($)	USD ($)	USD ($)	USD ($)	Treasury Stock [Member]	USD ($)
Balance, Beginning of Period at Jan. 31, 2011	($50,309)	$32,662	'	$13,546	($63,913)	'	$58
Balance, Beginning of Period, Shares at Jan. 31, 2011	'	55,232,073	524,274	'	'	32,502	'
Stock options exercised	23	16	1	22	'	'	'
Stock options exercised, Shares	'	151,166	5,356	'	'	'	'
Share-based compensation expense	636	'	'	636	'	'	'
Net (loss) income	14,138	'	'	'	14,138	'	'
Cumulative translation adjustments	-111	'	'	'	'	'	-111
Balance, End of Period at Jan. 31, 2012	-35,623	32,678	1	14,204	-49,775	'	-53
Balance, End of Period, Shares at Jan. 31, 2012	'	55,383,239	529,630	'	'	32,502	'
Stock options and warrants exercised	85	7	'	85	'	'	'
Stock options and warrants exercised, Shares	'	58,000	94,052	'	'	'	'
Share-based compensation expense	924	'	'	924	'	'	'
Conversion of preferred stock into common stock upon initial public offering of common stock	32,685	-32,685	8	32,677	'	'	'
Conversion of preferred stock into common stock upon initial public offering of common stock, Shares	'	-55,441,239	8,529,366	'	'	'	'
Conversion of preferred stock into common stock warrants upon initial public offering of common stock	1,324	'	'	1,324	'	'	'
Issuance of common stock upon initial public offering	34,576	'	4	34,572	'	'	'
Issuance of common stock upon initial public offering, shares	'	'	4,166,667	'	'	'	'
Net (loss) income	763	'	'	'	763	'	'
Cumulative translation adjustments	37	'	'	'	'	'	37
Balance, End of Period at Jan. 31, 2013	34,771	'	13	83,786	-49,012	'	-16
Balance, End of Period, Shares at Jan. 31, 2013	'	'	13,319,715	'	'	32,502	'
Stock options exercised	205	'	'	205	'	'	'
Stock options exercised, Shares	73,167	'	68,997	'	'	'	'
Share-based compensation expense	1,210	'	'	1,210	'	'	'
Net (loss) income	-709	'	'	'	-709	'	'
Cumulative translation adjustments	56	'	'	'	'	'	56
Balance, End of Period at Jan. 31, 2014	$35,533	'	$13	$85,201	($49,721)	'	$40
Balance, End of Period, Shares at Jan. 31, 2014	'	'	13,388,712	'	'	32,502	'

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Cash flows provided by (used in) operating activities:	'	'	'
Net (loss) income	($709)	$763	$14,138
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities:	'	'	'
Depreciation and amortization	2,185	2,009	1,502
Stock-based compensation expense	1,210	924	636
Deferred rent expense	-555	-148	-232
Non-cash interest	162	579	404
Loss on extinguishment of debt, non-cash portion	465	'	'
Mark-to-market adjustment of preferred stock warrant liability	'	-228	503
Mark-to-market adjustment of equity participation right	'	-276	-276
Deferred income taxes	-2,171	-767	-12,254
Net change in operating assets and liabilities:	'	'	'
Accounts receivable	610	-8,648	4,186
Prepaid expenses and other current assets	-199	-728	-721
Other assets	-61	2,117	-2,355
Accounts payable	-57	-773	1,910
Accrued expenses	2,921	-1,609	-232
Other liabilities	-221	-65	488
Deferred revenue	4,847	-2,575	1,336
Net cash provided by (used in) operating activities	8,427	-9,425	9,033
Cash flows used in investing activities:	'	'	'
Purchases of property and equipment	-746	-419	-120
Acquisitions	'	'	-3,543
Net cash used in investing activities	-746	-419	-3,663
Cash flows (used in) provided by financing activities:	'	'	'
Net decrease in line of credit	'	-7,000	4,005
Proceeds from borrowings under long-term debt	'	3,500	'
Proceeds from stock option and warrant exercises	205	92	37
Payments of long-term debt	-7,365	-1,135	'
Payments of capital lease obligations	-2,106	-1,060	-598
Proceeds from initial public offering, net of $4,174 issuance costs	'	34,576	'
Payment of debt and line of credit issuance costs	-213	-100	-111
Net cash (used in) provided by financing activities	-9,479	28,873	3,333
Effect of exchange rate changes on cash	-165	219	-15
Net (decrease) increase in cash and cash equivalents	-1,963	19,248	8,688
Cash and cash equivalents, beginning of period	30,716	11,468	2,780
Cash and cash equivalents, end of period	28,753	30,716	11,468
Supplemental cash flow disclosures:	'	'	'
Cash paid for interest	599	1,036	868
Cash paid for income taxes	821	1,609	739
Supplemental disclosure of non-cash investing and financing activities:	'	'	'
Acquisition of equipment through capital leases	2,358	3,821	2,443
Conversion of preferred stock into common stock	'	32,685	'
Conversion of preferred stock warrants into common stock warrants	'	$1,324	'

Consolidated_Statements_of_Cas1

Consolidated Statements of Cash Flows (Parenthetical) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jan. 31, 2014
Statement Of Cash Flows [Abstract]	'
Initial public offering issuance costs	$4,174

Description_of_Business

Description of Business	12 Months Ended
Description of Business	Jan. 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 that vehicle manufacturers use 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 beginning to explore 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.
	The Company is subject to a number of risks common to companies in similar stages of development, including dependence on a small number of significant customers for a substantial portion of its revenues, the ability to attract and retain key personnel, competition from substitute products and services from larger companies, the need to continually develop commercially viable products, and risks associated with changes in information technology.
	Initial Public Offering
	On July 3, 2012, the Company completed its initial public offering in which it issued and sold 4,166,667 shares of common stock at a public offering price of $10.00 per share. The Company received net proceeds of $34,576 after deducting underwriting discounts and commissions of $2,917 and other offering expenses of approximately $4,174. Upon the closing of the initial public offering, each share of the Company’s preferred stock was converted into two thirteenths of a share of the Company’s common stock.

Summary_of_Significant_Account

Summary of Significant Accounting Policies

12 Months Ended

Jan. 31, 2014

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

2. Summary of Significant Accounting Policies

Applicable Accounting Guidance

These consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”). Any reference in these notes to applicable accounting guidance is meant to refer to the authoritative nongovernmental United States generally accepted accounting principles as found in the Financial Accounting Standards Board’s (“FASB”) Accounting Standards Codification (“ASC”).

Basis of Presentation and Principles of Consolidation

The accompanying consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All inter-company balances and transactions have been eliminated in consolidation.

Use of Estimates

The preparation of financial statements in conformity with United States 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. Although the Company regularly assesses these estimates, actual results could differ materially from these estimates. On an on-going basis, the Company evaluates its estimates and judgments, including those related to revenue recognition and allowance for doubtful accounts, stock- based compensation expense, intangible assets, and other long-lived assets, in-process research and development and income taxes. 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, while reasonable when made, do not turn out to be substantially accurate.

Change in Estimates

Property and equipment are stated at cost. Major renewals, additions and betterments are charged to equipment accounts while replacements, maintenance and repairs which do not improve or extend the lives of the respective assets are expensed in the period incurred. Upon retirement or sale, the cost of the assets disposed of and the related accumulated depreciation are eliminated from the accounts and any resulting gain or loss is reflected in income from operations. Depreciation is computed using the straight-line method over the estimated useful life of each asset.

The Company periodically reviews the estimated useful lives of property and equipment. Changes to the estimated useful lives are recorded prospectively from the date of the change. During the first quarter of fiscal year 2014, the Company reevaluated its network assets, consisting primarily of server equipment utilized in its data centers, and determined that the expected average useful life of those assets had increased from three to five years, due to advances in technology and increased durability of the server equipment. The net book value of server assets placed in service as of February 1, 2013 was approximately $2,755. This change resulted in a decrease in depreciation expense on these assets of approximately $456, or $0.03 per share, on an after-tax basis, for the fiscal year ended January 31, 2014.

Revenue Recognition

The Company generates revenues from the licensing of its software products, typically in the form of one-year term “subscription” or capacity-based licenses that have a defined term, and from project fees for consulting services and training. Licenses for the Company’s software products may be software to be run on the customer’s own computer hardware, or provided in the form of software-as-a-service, via the Company’s hosted PowerFLOW OnDemand offering.

Software

The Company recognizes revenues from licensing the software products in accordance with ASC 985-605, Software Revenue Recognition. Term licenses typically have a term of one year and allow the customer to buy simulation in the form of a limited amount of simulation capacity on customer installed software and are sold based upon simulation capacity expected to be used within a certain time period—typically not exceeding one year.

The Company typically sells term and capacity-based software licenses combined in a bundled sale. For instance, when customers purchase simulation capacity, they typically also purchase a number of term-based licenses for preparation and analysis software. All of the Company’s software licenses include multiple elements such as support and maintenance. Pursuant to the guidance within ASC 985-605, the Company determined that since it does not have vendor-specific objective evidence of the fair value of the individual elements contained in a bundled sale of term and capacity-based software licenses, the arrangement is treated as a single unit of accounting and revenue is recognized ratably on a daily basis over the term of the license agreement, which coincides with the duration of the maintenance and support services. The Company’s arrangements typically do not include rights to carryover any unused capacity beyond the contractual license term or any customer right of return.

Licenses have finite terms that are not extendible at their expiration, and capacity usage is limited by contract to the amount specified. The Company’s practice is not to modify existing capacity-based licenses to allow simulation capacity to be added to an existing arrangement. A customer desiring to purchase additional simulation capacity or to license additional users of the Company’s preparation and analysis software during the term of the original simulation license does so by entering into a separate arrangement. Revenue from these new arrangements is recognized over the term of the new agreements, which include bundled maintenance and support, and are for a term of less than twelve months, coterminous with the remaining term of the original simulation license.

The Company commences recognition of term license revenue when persuasive evidence of an arrangement exists; delivery of the software or license keys has occurred and all service elements, if bundled or linked, have commenced; payment is fixed or determinable; and collection of the resulting receivable is considered probable by management. Payments received from customers in advance of revenue recognition are treated as deferred revenue.

If training or consulting service projects are bundled with a software license sale or, as a result of specific facts and circumstances, are determined to be linked with a software license sale, the Company treats this as one arrangement and recognizes revenue ratably on a daily basis over the license period provided that delivery of all elements of the arrangement have commenced.

Software as a service (OnDemand)

The Company recognizes revenue from software as a service arrangement’s in accordance with ASC 605. Capacity-based licenses allow the customer to buy simulation capacity as a service hosted by the Company and are sold based upon simulation capacity expected to be used within a certain time period—typically not exceeding one year. The contracts have finite terms that are not extendible at their expiration, and capacity usage is limited by contract to the amount specified. The Company’s practice is not to modify existing capacity-based licenses to allow simulation capacity to be added to an existing arrangement. A customer desiring to purchase additional simulation capacity or to license additional users of the Company’s preparation and analysis software during the term of the original simulation license must do so by entering into a separate arrangement. Revenue from these arrangements is recognized as the capacity is used. In the event that any capacity remains unused at the end of the term of the arrangement, it is recognized as revenue at that time.

Projects

The Company also derives revenue from fees for separate, project-based services. The Company’s projects are typically short term in nature and usually complete in less than 90 days. Project pricing is generally either fixed fee or time and material based. The Company recognizes revenue from these service arrangements in accordance with ASC 605. Projects are either sold as one deliverable, or as multiple deliverables with stand-alone value. For single deliverable projects, to the extent that adequate project reporting of time incurred and time to complete records exist, the Company recognizes consulting services revenue as the services are performed under the proportionate performance method. In other situations, for example, providing a customer with an on-site engineer for a defined period of time to provide services at the customer’s direction, the Company recognizes revenue ratably over the service period. In situations where the Company is unable to utilize the proportional performance method, for example due to either the lack of adequate documentation of time incurred or to be incurred or a lack of a defined service, period revenue is deferred until the contract is completed.

For projects which have multiple deliverables, each with stand alone value, the Company recognizes revenue based on ASC 605 and allocates the arrangement consideration based on the relative selling price of the deliverables. For the Company’s project deliverables, it uses best estimated selling price (“BESP”) as its selling price if vendor-specific objective evidence (“VSOE”) or third-party evidence of selling price (“TPE”) do not exist. If each deliverable does not have stand alone value, revenue recognition is deferred until the completion of the entire project.

Multiple element arrangements

Multiple element arrangements may include customer rights to any combination of software, project deliverables, software as a service, maintenance and training.

When more than one element is contained in a single arrangement, the Company first allocates revenue based upon the relative selling price into two categories: (1) non-software components, such as services under projects or software as a service and (2) software components, such as software applications and related items, such as post-contract customer support and other services.

Revenue allocated to non-software services is recognized based on ASC 605 and the arrangement consideration is allocated based on the relative selling price of the deliverables. For the Company’s non-software deliverables, it uses best estimated selling price (“BESP”) as its selling price if vendor-specific objective evidence (“VSOE”) or third-party evidence of selling price (“TPE”) do not exist.

Revenue allocated to products sold which meet the definition of software components is recognized based on software accounting guidance provided for in ASC 985-605. Under this guidance, the Company must use the residual method to recognize revenue when a multiple element arrangement includes one or more software related elements to be delivered at a future date and VSOE of fair value of all undelivered elements exists (typically maintenance and other services), but does not exist for the delivered elements (typically the software). Since the Company cannot establish VSOE for the undelivered elements, the entire arrangement is deferred and recognized ratably over the contract (maintenance) period.

Foreign Currency Translation

The Company has foreign subsidiaries in England, France, Germany, Italy, Japan, Korea and China. For fiscal 2014, all of the Company’s foreign subsidiaries (excluding that in England) used their local currency as their functional currency in accordance with ASC 830, Foreign Currency Matters. Foreign subsidiary records are maintained in the local currency. Beginning in fiscal 2011, the Company’s French, German, Japanese and Korean subsidiaries began to translate their assets and liabilities denominated in their functional currency at current rates of exchange in effect at the balance sheet date. Beginning in fiscal 2012, the Company’s Italian subsidiary began to translate its assets and liabilities denominated in its functional currency at current rates of exchange in effect at the balance sheet date. During the first quarter of fiscal year 2013, the Company established a subsidiary in China. The Company’s review of the operations of this subsidiary indicated that it should use the local currency as its functional currency. As a result, the Company’s Chinese subsidiary translates its assets and liabilities denominated in its functional currency at current rates of exchange in effect at the balance sheet date. The resulting gains and losses from translation are included as a component of other comprehensive income. Transaction gains and losses and re-measurement of assets and liabilities denominated in currencies other than a subsidiary’s functional currency are included in other expense, net. Foreign currency (loss) gain included in other expense, net for the years ended January 31, 2014, 2013 and 2012 was $(83), $17 and $(106), respectively.

Concentration of Credit Risk and Significant Customers

Financial instruments that potentially subject the Company to concentration of credit risks are principally cash and cash equivalents and accounts receivable. The Company invests its cash and cash equivalents with high credit quality financial institutions, and consequently, the Company believes that such funds are subject to minimal credit risk. The Company maintains its cash in bank deposit accounts, which at times may exceed federally insured limits, but management believes that the deposits are not exposed to significant credit risk due to the financial position of the depository institutions in which those financial instruments are held.

Concentrated credit risk with respect to accounts receivable is limited to large creditworthy customers. The Company periodically assesses the financial strength of its customers and believes that its accounts receivable credit risk exposure is minimal.

The Company typically does not require collateral from its customers for sales on account. The Company has not experienced significant losses related to receivables from individual customers or groups of customers in any specific industry or geographic region.

The following table provides information concerning customers that individually accounted for greater than 10% of total revenues or 10% of accounts receivable, and their respective percentages of total revenues and accounts receivable, as of January 31, 2014, 2013 and 2012:

Year Ended January 31,

2014

2013

2012

Percentage of

total revenues

accounts

total revenues

accounts

total revenues

accounts

receivable at

fiscal year end

Customer A

Customer B

Customer C

Customer D

Customer E

less than 10%

Concentration of Other Risks

The Company has one main data center provider, and several support providers (which handle overflow), to host or provide access to hardware for the Company’s OnDemand application service to customers. The disruption of these services could have a material adverse effect on the Company’s business, financial position, and results of operations.

Cash and Cash Equivalents and Restricted Cash

The Company considers all highly liquid investments purchased with an original maturity of 90 days or less, that are not restricted as to withdrawal, to be the equivalent of cash for the purpose of balance sheet and statement of cash flows presentation. Cash equivalents consisted of money market accounts as of January 31, 2014 and 2013. The Company maintains $525 of restricted cash related to an operating lease, which has been recorded within other long-term assets.

Accounts Receivable and Allowances for Doubtful Accounts

Accounts receivable are stated at the amount management expects to collect from outstanding balances. An allowance for doubtful accounts is provided to the extent that specific accounts receivable are considered to be uncollectible, based on historical experience, known collection issues, and management’s evaluation of outstanding accounts receivable at the end of the year. Uncollectible amounts, if any, are written-off against the allowance after all collection efforts have been exhausted. During the fiscal year ended January 31, 2014, the Company recorded $21 of net bad debt expense relating to write-offs of uncollectible receivables. Based on management’s analysis of its outstanding accounts receivable, and customers’ creditworthiness and collection history, the Company concluded that an allowance was not necessary as of January 31, 2014 and 2013.

Property and Equipment, net

Property and equipment, net is stated at cost. Major renewals, additions and betterments are charged to property accounts while replacements, maintenance and repairs which do not improve or extend the lives of the respective assets are expensed in the period incurred. Upon retirement or sale, the cost of the assets disposed of and the related accumulated depreciation are eliminated from the accounts and any resulting gain or loss is reflected in the consolidated statement of operations. Depreciation is computed using the straight-line method over the estimated useful life of each asset, generally as follows:

Asset classification

Estimated Useful Life

Computer equipment

3-5 years

Software

3 years

Office equipment and furniture

3-5 years

Leasehold improvements

Shorter of useful life or remaining

life of lease

Leasehold improvements and assets acquired under capital leases are typically amortized using the straight-line method over the shorter of the estimated useful life of the asset or the term of the lease. However, assets acquired under capital leases that contain bargain purchase options that are typically exercised are amortized over the estimated useful life of the asset. Amortization of leasehold improvements and assets acquired under capital leases is included in depreciation expense.

Impairment of Long-Lived Assets

The Company reviews its long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of these assets is measured by comparison of their carrying amounts to the future undiscounted cash flows the assets are expected to generate. If any long-lived assets are considered to be impaired, the impairment recognized equals the amount by which the carrying value of the assets exceeds its estimated fair value. The Company did not identify any indicators of impairment of its long-lived assets during the fiscal years ended January 31, 2014 and 2013.

In fiscal year 2012, the Company determined that it would not re-enter space currently under sublease and therefore took an impairment charge through depreciation expense of $0.3 million for leasehold improvements.

Research and Development Expenses

Research and development expense includes costs incurred to develop intellectual property and are charged to expense as incurred. The costs for the development of new software and substantial enhancements to existing software are expensed as incurred until technological feasibility has been established, at which time any additional costs are capitalized. The Company has determined that technological feasibility is established at the time a working model of software is completed. Because the Company believes that, under its current process for developing software, completion of the software is essentially concurrent with the establishment of technological feasibility, no costs have been capitalized to date.

Advertising Costs

Advertising costs are expensed as incurred. To date, the Company has not incurred significant advertising costs.

Income Taxes

Income taxes are accounted for in accordance with ASC 740, Income Taxes. ASC 740 requires that deferred tax assets and liabilities are recorded based on temporary differences between the financial statement amounts and the tax basis of assets and liabilities, measured using enacted tax rates in effect for the year in which the differences are expected to reverse. The Company routinely assesses the likelihood that it will be able to realize its deferred tax assets.

During fiscal year 2012, the Company determined that it was more likely than not that it would be able to realize certain of its deferred tax assets primarily as a result of expected future taxable income. Accordingly, the Company reversed $12,501 of its valuation allowance during fiscal year 2012.

During fiscal year 2013, the Company reassessed its state tax profile and state apportionment. As a result, the Company recorded a valuation allowance against certain state investment tax credits and R&D credits in the amount of $155. This was due to the fact that management determined as of January 31, 2013 it was more likely than not that these assets would not be realized.

During fiscal year 2014, the Company updated its assessment of the realizability of the deferred tax assets, considering new state tax credits and expiring state net operating loss carryforwards, and reduced the valuation allowance by $104.

The Company follows ASC 740-10 (formerly FASB Interpretation No. 48 or FIN 48) with regards to accounting for uncertain tax positions, which prescribes a threshold for the financial statement recognition and measurement of a tax position taken or expected to be taken within an income tax return. For each tax position, the enterprise must determine whether it is more likely than not that the position will be sustained upon examination based on the technical merits of the position, including resolution of any related appeals or litigation. A tax position that meets the more likely than not recognition threshold is then measured to determine the amount of benefit to recognize within the financial statements. No benefits may be recognized for tax positions that do not meet the more likely than not threshold. The Company’s adoption of FIN 48 resulted in no effect on its financial position or results of operations in the year of adoption as the Company had a full valuation allowance against its deferred tax assets due to the uncertainty surrounding the realization of such assets.

The Company’s intention is to indefinitely reinvest the total amount of its unremitted foreign earnings in the local international jurisdictions, except for instances where the Company can remit such earnings to the United States without an associated net tax cost. As a result, the Company currently does not provide for United States taxes on the unremitted earnings of its international subsidiaries.

Comprehensive Income and Accumulated Comprehensive Income

ASC 220, Comprehensive Income requires the reporting and display of comprehensive income and its components. Comprehensive income is defined as the change in equity of a business enterprise during a period from transactions, and other events and circumstances from non-owner sources. Accumulated other comprehensive income consists entirely of foreign currency translation adjustments at January 31, 2014, 2013, and 2012.

Fair Value of Common Stock prior to Initial Public Offering

Prior to the Company’s initial public offering in July 2012, estimates of the fair value of the shares of its common stock were historically performed by the Company’s board of directors based upon information available to them at the time of grant. Prior to January 31, 2011, the Company’s board of directors did not conduct any formal valuation procedure or commission any third party valuation or appraisal in connection with its determinations of the fair value of its common stock. The Company’s board of directors considered the most persuasive evidence of fair value to be the prices at which the Company’s securities were sold in actual arms’ length transactions. The Company’s board of directors also considered numerous other objective and subjective factors in the assessment of fair value, including reviews of the Company’s business and financial condition, the conditions of the industry in which the Company operates and the markets that the Company serves and general economic, market and United States and global capital market conditions, an analysis of publicly traded peer companies, the lack of marketability of the Company’s common stock, the likelihood of achieving a liquidity event for the shares of common stock underlying its stock options, such as an initial public offering or sale of the Company, the preferences and privileges of the Company’s preferred stock over the rights of the Company’s common stock, the status of strategic initiatives being undertaken by the Company’s management and board of directors and, after January 31, 2011, independent third party valuations of the Company’s common stock. All options have been granted at exercise prices not less than the fair value of the underlying shares on the date of grant.

In considering the fair value of the Company’s common stock, the Company’s board of directors and management considered the impact of the accumulated liquidation preferences of the Company’s preferred stock. The Company’s board recognized that any sale or other exit scenario other than an initial public offering at a valuation less than the accumulated liquidation preference would result in the receipt by common stockholders of no consideration. However, when estimating the fair value of the Company’s common stock for purposes of equity-based compensation, the Company’s board also took into account the alternative that all outstanding shares of preferred stock would convert to common stock prior to the exit transaction, such that the accumulated liquidation preferences would not factor into the fair value of the common stock.

Stock-Based Compensation

The Company accounts for stock-based compensation in accordance with ASC 718, Compensation—Stock Compensation. Under the fair value recognition provisions of ASC 718, share-based compensation cost is measured at the grant date based on the fair value of the award and is recognized as expense over the requisite service or vesting period. Determining the fair value of equity awards at the grant date requires judgment. The Company estimates the grant date fair value of stock options using the Black-Scholes option valuation model. This option valuation model requires the input of subjective assumptions including: (1) expected life (estimated period of time outstanding) of the options granted, (2) volatility, (3) risk-free rate, (4) dividends and (5) the fair value of the Company’s common stock. Because share-based compensation expense is based on awards ultimately expected to vest, it is reduced for estimated forfeitures.

ASC 718 requires forfeitures to be estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures rates differ from those estimates. Forfeitures are estimated based on historical experience.

The Company recognizes windfall tax benefits associated with the exercise of stock options or release of restricted stock units directly to stockholders’ equity only when realized. A windfall tax benefit occurs when the actual tax benefit realized by the Company upon an employee’s disposition of a share-based award exceeds the deferred tax asset, if any, associated with the award that we had recorded. When assessing whether a tax benefit relating to share-based compensation has been realized, the Company follows the “with-and-without” method. Under the with-and-without method, the windfall is considered realized and recognized for financial statement purposes only when an incremental benefit is provided after considering all other tax benefits including the Company’s net operating losses. The with-and-without method results in the windfall from share-based compensation awards always being effectively the last tax benefit to be considered. Consequently, the windfall attributable to share-based compensation will not be considered realized in instances where our net operating loss carryover (that is unrelated to windfalls) is sufficient to offset the current year’s taxable income before considering the effects of current-year windfalls.

Net (Loss) Income per Share

Net (loss) income per share is 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 or upon conversion of convertible preferred stock, when dilutive. Potential common shares that are anti-dilutive are excluded from the calculation of diluted net (loss) income per common share. The impact of the accretion of unpaid and undeclared dividends was not reflected in the weighted average shares used to compute diluted net (loss) income per share as the former convertible preferred stock was not entitled to receive undeclared dividends upon such conversion.

Recent Accounting Pronouncements

In December 2011, the FASB issued ASU No. 2011-11, Balance Sheet (Topic 210)—Disclosures about Offsetting Assets and Liabilities (ASU No 2011-11). The update requires entities to disclose information about offsetting and related arrangements of financial instruments and derivative instruments. The Company adopted ASU 2011-11 on February 1, 2013. This adoption did not have a material impact on the Company’s consolidated financial statements.

In February 2013, the FASB issued ASU No. 2013-02, Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income (ASU 2013-02). ASU 2013-02 requires companies to provide information about the amounts reclassified out of accumulated other comprehensive income by component. Companies are also required to disclose these reclassifications by each respective line item on the statements of operations. ASU 2013-02 is effective prospectively for annual reporting periods beginning after December 15, 2012, and interim periods within those annual periods. The Company adopted ASU 2013-02 on February 1, 2013. This adoption did not have a material impact on the Company’s consolidated financial statements.

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 is 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.

Property_and_Equipment_Net

Property and Equipment, Net	12 Months Ended
Property and Equipment, Net	Jan. 31, 2014
Property Plant And Equipment [Abstract]	'
Property and Equipment, Net	'

	3. Property and Equipment, net

	Property and equipment, net consist of the following:



		January 31,			January 31,
		2014			2013
	Computer software and equipment	$	18,635		$	15,718
	Office equipment and furniture		444			371
	Leasehold improvements		2,627			2,732

	Total property and equipment		21,706			18,821
	Less accumulated depreciation		(14,350	)		(12,645	)

	Property and equipment, net	$	7,356		$	6,176


	Depreciation expense was $1,834, $1,626 and $1,438 for the fiscal years ended January 31, 2014, 2013 and 2012, respectively.

	Included in computer software and equipment and office equipment and furniture is equipment held pursuant to capital leases with costs of $16,802 and $14,450 and accumulated amortization of $10,997 and $9,752 as of January 31, 2014 and 2013, respectively.

Acquired_Intangible_Assets

Acquired Intangible Assets	12 Months Ended
Acquired Intangible Assets	Jan. 31, 2014
Goodwill And Intangible Assets Disclosure [Abstract]	'
Acquired Intangible Assets	'

	4. 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 fair value of certain identifiable intangible assets acquired from science + computing AG on November 30, 2011 and related estimates of useful lives:



		Fair		Useful
		Value		Life
				(Years)
	Intellectual property	$	3,505		10
	Access to facilities contract		38		1

	Total	$	3,543




	The following table reflects the carrying value of intangible assets as of January 31, 2014:



		Cost		Accumulated			Net Book
		Cost		Amortization			Value
	Intellectual property	$	3,505	$	(760	)	$	2,745
	Access to facilities contract		38		(38	)		—

	Total	$	3,543	$	(798	)	$	2,745


	The following table reflects the carrying value of intangible assets as of January 31, 2013:





		Cost		Accumulated			Net Book
		Cost		Amortization			Value
	Intellectual property	$	3,505	$	(409	)	$	3,096
	Access to facilities contract		38		(38	)		—

	Total	$	3,543	$	(447	)	$	3,096


	Amortization expense of intangible assets was $351, $383 and $64 for the fiscal years ended January 31, 2014, 2013 and 2012, respectively.

	The following table presents the expected future amortization expense related to the Company’s acquired intangible assets for the next five fiscal years and thereafter as of January 31, 2014:



	2015	$	351
	2016		350
	2017		351
	2018		350
	2019		351
	2020 and thereafter		992

		$	2,745

Fair_Value_Measurements

Fair Value Measurements

12 Months Ended

Jan. 31, 2014

Fair Value Disclosures [Abstract]

Fair Value Measurements

5. Fair Value Measurements

Financial instruments consist primarily of cash and cash equivalents, accounts receivable, capital lease obligations and debt. As of January 31, 2014 and 2013, 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 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.

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

—

Accrued_Expenses

Accrued Expenses	12 Months Ended
Accrued Expenses	Jan. 31, 2014
Payables And Accruals [Abstract]	'
Accrued Expenses	'
	6. Accrued Expenses
	Accrued expenses consist of the following:


		January 31,		January 31,
		2014		2013
	Accrued payroll	$	1,603	$	1,457
	Sales and withholding taxes		3,158		2,595
	Accrued commissions and bonuses		2,456		1,543
	Accrued income taxes payable		571		73
	Deferred rent, current portion		602		523
	Legal and professional		489		451
	Other accrued expenses		1,406		642

	Total accrued expenses	$	10,285	$	7,284

Deferred_Rent

Deferred Rent	12 Months Ended
Deferred Rent	Jan. 31, 2014
Text Block [Abstract]	'
Deferred Rent	'
	7. 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 related to four months free rent, which is also being amortized as part of rent expense on a straight line basis over the life of the lease. In addition, the Company’s facility leases typically contain other 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 at January 31, 2014 and January 31, 2013 is as follows:


		January 31,			January 31,
		2014			2013
	Leasehold improvement incentive	$	572		$	836
	Non-cash rent expense		861			1,169

	Total deferred rent		1,433			2,005
	Less current portion included in accrued expenses		(602	)		(523	)

	Deferred rent, net of current portion	$	831		$	1,482

Debt

Debt	12 Months Ended
Debt	Jan. 31, 2014
Debt Disclosure [Abstract]	'
Debt	'

	8. Debt

	Loan and Security Agreement

	On January 28, 2011, the Company entered into a Loan and Security Agreement with Gold Hill Capital 2008, L.P. (“Gold Hill”) and Massachusetts Capital Resource Company (the “Loan and Security Agreement”), which provided for term loans of up to $8,500, of which $1,000 was with a related party. On May 31, 2013, as described more fully below, the Company repaid, with available cash on hand, all outstanding obligations under the Loan and Security Agreement.

	Under the Loan and Security Agreement, which was subsequently amended and extended at various times through January 30, 2012, the Company borrowed $5,000 on January 28, 2011 and an additional $3,500 on March 30, 2012, for a total borrowed amount of $8,500. The Loan and Security Agreement contained customary representations, warranties and reporting requirements, but no financial covenants. The term was for 54 months from the borrowing dates (the January 28, 2011 draw matured on August 1, 2015 and the March 30, 2012 draw matured on October 1, 2016) and the loans bore interest at 10.5% per annum. An additional 2.5% ($125 on the January 28, 2011 draw and $87 on the March 30, 2012 draw) was due at maturity and was originally recorded as a long-term liability and a debt discount. Interest only payments were payable during the first twelve months with principal and interest payments required for forty-two months thereafter. Included in interest expense in the accompanying consolidated statements of operations was interest paid to related parties under the Loan and Security Agreement of $26, $97 and $138 for the fiscal years ended January 31, 2014, 2013 and 2012, respectively.

	On May 31, 2013 the Company repaid, with available cash on hand, all outstanding obligations under the Loan and Security Agreement. The repayment amount included $6,852 of outstanding principal, $60 of accrued interest and $213 of deferred origination fees that were accrued for in other long-term liabilities in the accompanying consolidated balance sheet. In addition, in accordance with the terms of the agreement, the Company paid a prepayment interest penalty of $290, representing 3% of the amount advanced to the Company under the agreement in January 2011 and 4% of the amount advanced to the Company under the agreement in March 2012. The Company recognized a loss from the extinguishment of this debt of $755 during the second quarter of fiscal year 2014, representing the prepayment interest penalty and the write-off of unamortized debt discount. As a result of this repayment, the Company saved cash interest which would otherwise have been incurred under the agreement of approximately $429 for the remainder of fiscal year 2014, and $428, $170 and $31 for fiscal years 2015, 2016 and 2017, respectively.

	In connection with the Loan and Security Agreement, and its subsequent amendments and extensions, the Company issued warrants to purchase shares of the Company’s Series G Convertible Preferred Stock (see Note 9). The Company recorded the original fair value of the warrants as debt discount with an offset to preferred stock warrant liability. The debt discount was amortized over the term of the loans using the effective interest method, with the unamortized debt discount as of the date of early payoff being written off to loss from the extinguishment of debt. For the fiscal years ended January 31, 2014, 2013 and 2012, the Company recorded $131, $478 and $295, respectively, in non-cash interest expense relating to this debt discount.

	Line of Credit

	In May 2010, the Company secured a $10,000 line of credit agreement with a bank bearing interest at the bank’s prime rate plus 1.50% on existing accounts receivable and 2.5% on certain forecasted renewal invoices, expiring one year from closing. In May 2011, the line of credit was extended for two additional years and on May 23, 2013, the line of credit expired in accordance with its terms.

	The line of credit agreement required collateral of specific accounts receivable and a first priority security interest in all assets of the Company. The Company was required to pay a collateral handing fee of 0.25% per month on outstanding balances from existing accounts receivable, and 0.375% per month on certain forecasted renewal invoices. The agreement contained certain restrictive financial covenants requiring the maintenance of an adjusted quick ratio, and the Company complied with these covenants throughout the term of the agreement.

	All amounts outstanding under the agreement were paid in full by the end of the first quarter of fiscal year 2013, and no subsequent borrowings or repayments occurred.

Warrants_for_Preferred_Stock

Warrants for Preferred Stock	12 Months Ended
Warrants for Preferred Stock	Jan. 31, 2014
Text Block [Abstract]	'
Warrants for Preferred Stock	'

	9. Warrants for Preferred Stock

	In connection with the Loan and Security Agreement, and its subsequent amendments and extensions (see Note 8), the Company issued various warrants to purchase an aggregate 1,190,000 shares of the Company’s Series G Convertible Preferred Stock at an exercise price of $0.94 per share. The warrants were issued at various times during the fiscal years ended January 31, 2011 and 2012 and had terms ranging from nine to ten years. The Company calculated the fair value of the warrants utilizing the Black-Scholes option pricing model with the following ranges of assumptions: volatility of 54.92% to 55.73%, term of nine to ten years, risk-free interest rate of 1.83% to 3.36%, and a dividend yield of 0%. The Company recorded the original fair value of the warrants, aggregating $1,049, as debt discount with an offset to preferred stock warrant liability. The preferred stock warrant liability was marked to market on a quarterly basis with the offsetting adjustment reflected in other income (expense), net in the accompanying consolidated statements of operations.

	As a result of the 1-for-6.5 reverse stock split effected with respect to the Company’s common stock on June 8, 2012, and the conversion to common stock of all outstanding shares of preferred stock upon the closing of the Company’s initial public offering on July 3, 2012, the warrants became exercisable for 183,076 shares of common stock at an exercise price of $6.11 per share. In addition, upon the closing of the initial public offering, the Company performed a final mark-to-market adjustment of the fair value of the warrants and recorded a gain of $165 to other income (expense), net in the second quarter of fiscal year 2013. Lastly, upon closing of the initial public offering, the warrants were no longer required to be classified as a liability and the final warrant fair value of $1,324 was reclassified to additional paid-in capital.

	On July 6, 2012, Gold Hill exercised warrants on a cashless basis to purchase an aggregate 161,538 shares of common stock, as a result of which the Company issued 67,268 shares of common stock.

	As of January 31, 2014 and 2013, warrants to purchase 21,538 shares of common stock remain outstanding.

Equity_Participation_Right

Equity Participation Right	12 Months Ended
Equity Participation Right	Jan. 31, 2014
Equity [Abstract]	'
Equity Participation Right	'
	10. Equity Participation Right
	In July 2009, the Company entered into a Bridge Loan and Security Agreement with a related party. In connection with its entry into that agreement, the Company granted to the related party the right to invest up to $10,000 at a 15% discount in the next equity investment round of the Company (if any), by either converting the existing debt or participating with a cash investment (the “Equity Participation Right”). The Equity Participation Right was deemed to be a derivative instrument and was recorded as a liability with a carrying amount equal to its fair value.
	Effective upon the consummation of the Company’s initial public offering on July 3, 2012, the Equity Participation Right expired, and the remaining fair value was reduced to zero, resulting in a $276 gain recorded in other income (expense), net in the accompanying consolidated statement of operations for the fiscal year ended January 31, 2013.

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
Commitments and Contingencies	Jan. 31, 2014
Commitments And Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'

	11. Commitments and Contingencies

	Capital Leases

	The Company leases certain equipment under capital leases expiring on various dates through fiscal 2018. Future minimum lease payments under capital lease commitments as of January 31, 2014 are as follows:



	Year ended January 31,
	2015	$	2,704
	2016		1,992
	2017		852
	2018		4

	Total future minimum lease payments		5,552
	Less: Interest		431

	Present value of future minimum lease payments		5,121
	Current portion of capital lease obligation		2,426

	Long-term capital lease obligation	$	2,695


	Operating Leases

	The Company has a lease for the rental of office space for its corporate headquarters, which was entered into in July 2008. The lease covers the rental of up to 65,941 square feet available to the Company at certain time periods over eight years, expiring in 2016. In connection with the lease, the Company entered into a letter of credit agreement with a bank that allows the landlord, under certain default conditions, to draw up to $525. The Company deposited $525 into a restricted cash account as security for the letter of credit. This amount is included in other assets (non-current) in the consolidated balance sheets as of January 31, 2014 and 2013.

	The Company leases office facilities for all its other locations under operating leases expiring on various dates through April 2021. The Company also leases certain office equipment under operating leases that expire on various dates through June 2016. Future minimum lease payments under operating lease commitments as of January 31, 2014 are as follows:



	Year ended January 31,
	2015	$	3,382
	2016		3,033
	2017		929
	2018		590
	2019		475
	Thereafter		1,070

	Total	$	9,479


	Rent expense is calculated on a straight-line basis over the term of the lease. Rent expense recognized under all operating leases totaled $2,823, $2,720 and $2,481 for the fiscal years ended January 31, 2014, 2013 and 2012, respectively. The Company entered into a new sub-rental lease agreement effective January 1, 2014 with a third party which expires on March 31, 2016. Sub-rental income was $324, $318 and $318 for the fiscal years ended January 31, 2014, 2013 and 2012, respectively.

	Purchase Obligations

	As of January 31, 2014, the Company has purchase obligations payable in fiscal years 2015, 2016, 2017 and 2018 as follows: $2,087, $2,060, $1,142 and $600, respectively.

	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 Exa 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.

	As of January 31, 2014, 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 $0 to $2,600 (excluding any interest or costs of litigation). The Company is not able to determine whether a loss is probable or estimate the reasonably possible or probable amount of such loss, therefore we have recorded a liability of $0, equal to the low end of the range.



	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 January 31, 2014 and 2013, the Company has not recorded any liabilities for the above guarantees and indemnities.

Convertible_Preferred_Stock

Convertible Preferred Stock	12 Months Ended
Convertible Preferred Stock	Jan. 31, 2014
Equity [Abstract]	'
Convertible Preferred Stock	'
	12. Convertible Preferred Stock
	Prior to the consummation of the Company’s initial public offering on July 3, 2012, the Company was authorized to issue up to 77,835,000 shares of $0.001 par value preferred stock. On July 3, 2012, in connection with the Company’s initial public offering of common stock, all of the Company’s then outstanding preferred stock was converted into 8,529,366 shares of common stock, and the Company’s certificate of incorporation was amended to, among other things, provide that the Company is authorized to issue up to 5,000,000 shares of $0.001 par value preferred stock.

Stockholders_Equity_Deficit

Stockholders' Equity (Deficit)	12 Months Ended
Stockholders' Equity (Deficit)	Jan. 31, 2014
Equity [Abstract]	'
Stockholders' Equity (Deficit)	'

	13. Stockholders’ Equity (Deficit)

	Initial Public Offering

	On July 3, 2012, the Company completed its initial public offering in which it issued and sold 4,166,667 shares of common stock at a public offering price of $10.00 per share. The Company received net proceeds of $34,576 after deducting underwriting discounts and commissions of approximately $2,917 and other offering expenses of approximately $4,157. As of January 31, 2012, approximately $2,315 of these offering expenses were deferred and included in other long-term assets in the accompanying consolidated balance sheet. Upon the closing of the initial public offering, each share of the Company’s preferred stock was converted into two thirteenths of a share of the Company’s common stock.

	Reverse Stock Split

	On June 8, 2012, the Company effected a 1-for 6.5 reverse stock split of its common stock whereby each share of common stock, $0.001 par value, outstanding immediately prior to that date was combined, reclassified and changed into two-thirteenths (2/13) of a fully paid and non-assessable share of common stock. Except as noted, all share and per share information in the accompanying consolidated financial statements has been retroactively adjusted to reflect the stock split for all periods presented.

Stock_Based_Compensation

Stock Based Compensation	12 Months Ended
Stock Based Compensation	Jan. 31, 2014
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Stock Based Compensation	'

	14. Stock Based Compensation

	Summary of Plans

	The Company’s equity compensation plans generally provide the board of directors the authority to grant incentive stock options, nonqualified stock options, restricted stock awards, unrestricted stock awards, performance share awards, restricted stock units, and stock appreciation rights (collectively, options) and to select the employees and consultants to whom options are granted and determine the terms of each option, including (i) the number of shares of common or preferred stock subject to the option, (ii) when the option becomes exercisable, (iii) the option exercise price, which, in the case of incentive stock options, must be at least 100% (110% in the case of incentive stock options granted to a stockholder owning in excess of 10% of the Company’s common stock) of the fair market value of the stock as of the date of grant and (iv) the duration of the option (which, in the case of incentive stock options, may not be less than five years or exceed 10 years). Options generally expire 10 years from the date of issuance.

	The Company’s common and preferred stock incentive plans are summarized as follows (the table reflects options for preferred stock on an as converted to common stock basis):



	Plan		Authorized and				Outstanding				Available to
			Reserved				January 31,				Issue
							2014
	1999 Series G Convertible Preferred Nonqualified Stock Option Plan (1)			384,615				2,820				—
	2005 Series G Convertible Preferred Stock Incentive Plan (1)			1,846,153				1,278,627				—
	2007 Stock Incentive Plan (1)			1,076,923				810,788				—
	2011 Stock Incentive Plan			769,230				287,876	(2)			480,979

				4,076,921				2,380,111				480,979



	-1	Effective upon the consummation of its initial public offering on July 3, 2012, the Company ceased issuing awards under any plan other than its 2011 Stock Incentive Plan.
	-2	Outstanding awards include 5,224 restricted stock units granted for the first time in September 2013 to certain members of the board of directors, which will fully vest in June 2014.

	Grant-Date Fair Value

	Prior to the consummation of the Company’s initial public offering on July 3, 2012, the fair value of the shares of common stock that underlie the stock options granted under the various plans outstanding was historically determined by the Company’s board of directors based upon information available to it at the time of grant. Prior to the Company’s initial public offering, there was no public market for its common stock, and the board of directors determined the fair value of the common stock by utilizing, among other things, recent or contemporaneous valuation information available to it. All options have been granted at exercise prices not less than the fair value of the underlying shares on the date of grant.

	The Company uses the Black-Scholes option pricing model to calculate the grant-date fair value of stock options issued. The Black-Scholes model requires estimates regarding volatility, expected life of the award, the risk-free rate of return, dividend yields, and estimated forfeitures of awards during the service period.

	The Company computes volatility under the “calculated value method” of ASC 718, Compensation—Stock Compensation. As the Company does not have a trading history for its common stock prior to its initial public offering or a significant trading range for its common stock trading since the initial public offering, the Company estimates the expected price volatility for its common stock by taking the average historic price volatility for selected industry peers based on daily price observations over a period equivalent to the expected term of the stock options granted. The Company’s industry peers consist of several public companies that are similar to the Company in size, stage of life cycle and financial leverage. The Company intends to consistently apply this process using the same or similar public companies until a sufficient amount of historical information regarding the volatility of its common stock becomes available, or unless circumstances change such that the currently utilized companies are no longer similar to the Company, in which case, more suitable companies with publicly available share prices will be utilized in the calculation.



	Since adopting ASC 718, the Company has been unable to use historical employee exercise and option expiration data to estimate the expected term assumption for the Black-Scholes grant-date valuation. As such, the Company has utilized the “simplified” method, as prescribed by Staff Accounting Bulletin No. 107, Share-Based Payment, to estimate on a formula basis the expected term of its stock options considered to have “plain vanilla” characteristics.

	The Company utilizes the Federal Reserve Board’s published Treasury Constant Maturity rate which most closely matches the option term. As an example, for a 6.25 year term, the Company would use the 7-year rate coinciding with the option issuance date.

	The Company has never paid dividends and does not currently intend to pay dividends, and thus has assumed a dividend yield of zero.

	The Company estimates potential forfeitures of stock grants and adjusts compensation cost recorded accordingly. Forfeitures are estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ, or are expected to differ, from such estimates. Changes in estimated forfeitures will be recognized through a cumulative catch-up adjustment in the period of change and will also impact the amount of stock compensation expense to be recognized in future periods.

	The Company considers the indirect effect of income tax benefits from stock-based compensation in arriving at its income tax provision. In addition, the Company has elected to recognize excess income tax benefits from stock-based compensation as an addition to paid-in capital only if an incremental income tax benefit would be realized by applying the with-and-without method. Under this method, the excess tax benefit is considered realized and recognized for financial statement purposes only when an incremental benefit is provided after considering all other tax benefits including the Company’s net operating losses. The Company measures the tax benefit associated with excess tax deductions by multiplying the excess tax over book deduction by the statutory tax rates.

	The fair value of stock option awards was estimated on the date of grant using the Black-Scholes option-pricing model with the following assumptions:



			Years Ended January 31,
			2014				2013				2012
	Expected life (years)			6.25				6.25				6.48
	Risk-free interest rate			2.21	%			1.09	%			2.11	%
	Expected volatility			50.6	%			51.6	%			56.7	%
	Expected dividend yield			0	%			0	%			0	%



	A summary of the changes in common and preferred stock options issued under all of the existing stock option plans is as follows (the table reflects options for preferred stock on an as converted to common stock basis):



		Year Ended January 31, 2014
		Number of				Weighted				Weighted Average				Aggregate
		Options				Average				Remaining Contractual				Intrinsic
						Exercise Price				Term (in years)				Value (1)
Outstanding—beginning of period			2,307,280			$	4.58
Granted			184,728				13.36
Exercised			(73,167	)			3.46
Cancelled			(43,954	)			10.49

Outstanding—end of period			2,374,887			$	5.19				4.2			$	21,137

Exercisable—end of period			1,855,542			$	3.3				3			$	19,999

Vested or Expected to Vest—end of period			2,317,942			$	5.02				4.1			$	21,009



-1	The aggregate intrinsic value was calculated based on the positive difference between the fair value of the Company’s stock on January 31, 2014 and the exercise price of the underlying options.

The number of options exercised during the year ended January 31, 2014 includes 4,170 options included in a cashless exercise, which allowed the optionee to pay the exercise price by surrendering options to the Company. The net shares of common stock resulting from option exercises is 68,997 as reflected in the consolidated statement of shareholder’s equity.

The following table summarizes information relating to stock options granted and exercised:



		Years Ended January 31
		2014				2013				2012
Weighted average fair value of options granted		$	6.8			$	5.39			$	6.37
Aggregate intrinsic value of options exercised (1)			528				287				285


-1	The aggregate intrinsic value was calculated based on the positive difference between the fair value of the Company’s stock at exercise and the exercise price of the underlying options.

The Company also granted 5,224 restricted stock units for the first time in September 2013 to certain members of the board of directors, which will fully vest in June 2014.

Stock-Based Compensation Expense

The Company records stock-based compensation expense over the estimated service/vesting period. The amount of stock-based compensation expense recognized during a period is based on the value of the portion of the awards that are ultimately expected to vest.



Total stock-based compensation expense was recorded within the consolidated statement of operations for the fiscal years ended January 31, 2014, 2013 and 2012 as follows:



		Years Ended January 31
		2014				2013				2012
Cost of revenues		$	137			$	111			$	79
Sales and marketing			239				190				119
Research and development			376				308				227
General and administrative			458				315				211

Total		$	1,210			$	924			$	636


The total unrecognized compensation cost related to outstanding stock options is $2.4 million at January 31, 2014. This amount is expected to be recognized over a weighted-average period of 2.7 years.

Income_Taxes

Income Taxes	12 Months Ended
Income Taxes	Jan. 31, 2014
Income Tax Disclosure [Abstract]	'
Income Taxes	'

	15. Income Taxes

	The components of (loss) income before income taxes are as follows:



			Years Ended January 31,
			2014				2013				2011
	United States		$	(3,068	)		$	(355	)		$	2,797
	Foreign			1,439				1,230				635

	(Loss) income before income taxes		$	(1,629	)		$	875			$	3,432


	The Company’s effective tax rate varies from the U.S. federal statutory rate follows:



			Years Ended January 31,
			2014				2013				2012
	United States federal income tax rate			34	%			34	%			34	%
	State taxes, net of federal benefit			0.6	%			2.6	%			0.7	%
	Meals and entertainment			(1.6	)%			3.8	%			0.6	%
	Stock compensation			(16.1	)%			26.4	%			4.8	%
	Executive compensation			(5.1	)%			7.4	%			2.9	%
	Non-deductible mark-to-market and interest adjustments			0	%			(19.6	)%			2.3	%
	United States federal and state credits			30.6	%			(60.2	)%			(15.2	)%
	Change in valuation allowance			6.4	%			17.7	%			(355.8	)%
	Foreign taxes and rate differential			21.7	%			(17.8	)%			11.9	%
	Tax rate changes			(0.3	)%			(1.7	)%			1.2	%
	Expiration of tax attributes			(12.7	)%			21	%			—
	Other			(1.0	)%			(0.8	)%			0.7	%

	Total			56.5	%			12.8	%			(311.9	)%




	Significant components of the Company’s deferred tax assets and liabilities are as follows:



			January 31,
			2014				2013
	Deferred tax assets:
	Net operating loss carryforwards		$	9,282			$	9,078
	Business credit carryforwards			4,894				3,462
	Accrued expenses			789				213
	Stock compensation			318				208
	Deferred revenue			15				109
	Deferred rent			502				694
	Other			71				24

	Gross deferred tax assets			15,871				13,788
	Valuation allowance			(305	)			(409	)

	Total deferred tax assets			15,566				13,379

	Deferred tax liabilities:
	Depreciation			(177	)			(229	)
	Other			(79	)			(11	)

Total deferred tax liabilities			(256	)			(240	)

Net deferred tax assets		$	15,310			$	13,139


The components of the benefit (provision) for income taxes are as follows:



		Years Ended January 31,
		2014				2013				2012
Current:
Federal		$	(944	)		$	(663	)		$	(727	)
State			(28	)			(9	)			(72	)
Foreign			(292	)			(86	)			(777	)

Total current			(1,264	)			(758	)			(1,576	)

Deferred:
Federal			1,908				812				(400	)
State			64				236				137
Foreign			108				(247	)			44
Change in valuation allowance			104				(155	)			12,501

Total deferred			2,184				646				12,282

Total benefit (provision) for income taxes		$	920			$	(112	)		$	10,706


The need to establish valuation allowances for deferred tax assets is assessed periodically by the Company based on the ASC 740, Income Taxes, more-likely-than-not realization threshold criterion. The realizability of the deferred tax assets is evaluated quarterly. At January 31, 2014 and 2013, the Company’s net deferred tax assets totaled $15,310 and $13,139, respectively. The Company reviews all available evidence to evaluate the recoverability of its United States federal, state and foreign deferred tax assets, including net operating losses and research and development tax credits.



Based upon the Company’s cumulative history of earnings before taxes for financial reporting purposes over a 12-quarter period ending on January 31, 2012 and an assessment of the Company’s expected future results of operations as of January 31 2012, the Company determined that it was more likely than not that it would realize most of its United States net operating losses and other deferred tax assets prior to their expiration. As a result, during the fourth quarter of fiscal year 2012, the Company reversed a total of $12,501 of its deferred tax asset valuation allowances. The entire amount of the $12,501 valuation allowance release was recorded as a discrete benefit for income taxes in the Company’s consolidated statement of operations in the fourth quarter of fiscal year 2012.

During fiscal year 2013, the Company reassessed its state tax profile and state apportionment. As a result, the Company recorded a valuation allowance against certain state investment tax credits and R&D credits in the amount of $155. This was due to the fact that as of January 31, 2013, management determined it was more likely than not that these assets would not be realized.

During fiscal year 2014, the Company updated its assessment of the realizability of the deferred tax assets, considering new state tax credits and expiring state net operating loss carryforwards, and reduced the valuation allowance by $104.

As of January 31, 2014, the Company had United States federal net operating loss carryforwards of $27,118, which will begin to expire in 2017, and state net operating loss carryforwards of $1,195, which will begin to expire in 2015. The Company has an additional $115 of federal and state net operating losses not reflected above (net of tax), that are attributable to stock option exercises, which will be recorded as an increase in additional paid-in capital on the Company’s consolidated balance sheet once they are “realized” in accordance with ASC 718, Compensation—Stock Compensation. As of January 31, 2014, the Company had federal tax credit carryforwards of approximately $4,145, which will begin to expire in 2017, and state tax research and development credit carryforwards of approximately $1,134, which will begin to expire in 2021.

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 could be utilized annually in the future to offset its 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. Any such annual limitation may significantly reduce the utilization of the Company’s net operating loss carryforwards before they expire. The Company performed an analysis as of January 31, 2014, and determined that it had not experienced an ownership change for purposes of Section 382. However, future transactions in the Company’s common stock could trigger an ownership change for purposes of Section 382, which could limit the amount of net operating loss carryforwards and other attributes that could be utilized annually in the future to offset the Company’s taxable income, if any. Any such limitation, whether as the result of sales of common stock by the Company’s existing stockholders or sales of common stock by the Company, could have a material adverse effect on the Company’s results of operations in future years.

The Company considers the indirect effect of income tax benefits from stock-based compensation in arriving at its income tax provision. The Company recognizes windfall tax benefits associated with the exercise of stock options or release of restricted stock units directly to stockholders’ equity only when realized. A windfall tax benefit occurs when the actual tax benefit realized by the Company upon an employee’s disposition of a share-based award exceeds the deferred tax asset, if any, associated with the award that we had recorded. When assessing whether a tax benefit relating to share-based compensation has been realized, the Company follows the “with-and-without” method. Under the with-and-without method, the windfall is considered realized and recognized for financial statement purposes only when an incremental benefit is provided after considering all other tax benefits including the Company’s net operating losses. The with-and-without method results in the windfall from share-based compensation awards always being effectively the last tax benefit to be considered. Consequently, the windfall attributable to share-based compensation will not be considered realized in instances where our net operating loss carryover (that is unrelated to windfalls) is sufficient to offset the current year’s taxable income before considering the effects of current-year windfalls.

Accounting for income taxes requires a two-step approach to recognizing and measuring uncertain tax positions. The first step is to evaluate the tax position for recognition by determining if, based on the technical merits, it is more likely than not that the position will be sustained upon audit, including resolution of related appeals or litigation processes, if any. The second step is to measure the tax benefit as the largest amount that is more than 50% likely of being realized upon ultimate settlement. The Company reevaluates these uncertain tax positions on a quarterly basis. This evaluation is based on factors including, but not limited to, changes in facts or circumstances, changes in tax law, effectively settled issues under audit and new audit activity. Any changes in these factors could result in the recognition of a tax benefit or an additional charge to the tax provision. The Company has gross unrecognized tax benefits of $2,167 and $2,259 at January 31, 2014 and 2013, respectively. These amounts represent the amount of unrecognized tax benefits that, if recognized, would result in a reduction of the Company’s effective tax rate.

A tabular roll forward of the Company’s uncertainties in its income tax provision liability is presented below:



		Year Ended January 31
		2014				2013
Gross balance at February 1		$	2,259			$	2,407
Additions based on tax positions related to the current year			218				146
Reductions for tax positions of prior years			(310	)			(294	)

Gross balance at January 31		$	2,167			$	2,259


The Company classifies interest and penalties related to unrecognized tax benefits as income tax expense. These amounts are not reflected in the reconciliation above. The total amount of interest and penalties related to uncertain tax positions and recognized in the balance sheet as of January 31, 2014 and 2013 was $59 and $40, respectively.

The Company does not expect that the 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 or local examinations for years prior to January 31, 2009. However, carryforward attributes that were generated prior to January 31, 2010 may still be adjusted upon examination by federal, state or local tax authorities if they either have been or will be used in a future period.

The Company’s current intention is to indefinitely reinvest the total amount of its unremitted earnings in the local international jurisdiction, except for instances in which the Company can remit such earnings to the United States without an associated net tax cost. Events that could trigger a tax might include United States acquisitions or other investments funded by cash distributions or loans from a foreign subsidiary. Because of the complexity of United States and foreign tax rules applicable to the distribution of earnings from foreign subsidiaries to United States legal entities, the determination of the unrecognized deferred tax liability on these earnings is not practicable. The Company has not provided for United States taxes on the unremitted earnings of its international subsidiaries of $4,050.

Net_Loss_Income_per_Share

Net (Loss) Income per Share	12 Months Ended
Net (Loss) Income per Share	Jan. 31, 2014
Earnings Per Share [Abstract]	'
Net (Loss) Income per Share	'

	16. Net (Loss) Income per Share

	Net (loss) income 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 (loss) income per common share.

	The following table sets forth the components of the computation of basic and diluted net (loss) income per common share for the periods indicated:



		Year Ended January 31,
		2014			2013		2012
	Numerator:
	Net (loss) income	$	(709	)	$	763	$	14,138

	Denominator:
	Weighted average common shares, basic		13,326,883			7,929,364		493,763
	Dilutive effect of:
	Options to purchase common stock		—			152,871		78,189
	Options to purchase preferred stock		—			1,209,778		1,209,440
	Warrants to purchase common stock		—			40,752		40,346
	Convertible preferred stock		—			3,563,722		8,503,073

	Weighted average common shares outstanding, fully diluted		13,326,883			12,896,487		10,324,811

	Basic net (loss) income per share	$	(0.05	)	$	0.1	$	28.63

	Diluted net (loss) income per share	$	(0.05	)	$	0.06	$	1.37


	The following outstanding options, awards and warrants were excluded from the computation of diluted net (loss) income per share for the periods indicated because including them would have had an anti-dilutive effect:



		Year Ended January 31,
		2014			2013		2012
	Options, awards and warrants		2,401,649			630,909		574,789

Geographic_and_Segment_Informa

Geographic and Segment Information	12 Months Ended
Geographic and Segment Information	Jan. 31, 2014
Segment Reporting [Abstract]	'
Geographic and Segment Information	'

	17. Geographic and Segment Information

	ASC 280, Segment Reporting establishes standards for reporting information regarding operating segments in annual financial statements and requires selected information of those segments to be presented in annual and interim reports issued to stockholders. Operating segments are identified as components of an enterprise about which separate discrete financial information is available for evaluation by the chief operating decision-maker, or decision-making group, in making decisions on how to allocate resources and assess performance. The Company’s chief decision maker, as defined under ASC 280, is a combination of the chief executive officer and the chief operating officer. The Company views its operations and manages its business as one operating segment.



	Revenues by geographic location in total and as a percentage of total revenues are as follows:



		Year Ended January 31,
		2014					2013					2012
		Revenue		Percentage of			Revenue		Percentage of			Revenue		Percentage of
		Revenue		Revenue			Revenue		Revenue			Revenue		Revenue
	Geographic location:
	United States	$	12,202		22.3	%	$	11,182		22.9	%	$	10,409		22.7	%
	Japan		8,810		16.2	%		10,024		20.5	%		9,937		21.6	%
	Germany		10,287		18.9	%		7,925		16.2	%		5,959		13	%
	France		9,424		17.3	%		7,358		15.1	%		8,866		19.3	%
	Korea		4,684		8.6	%		4,196		8.6	%		3,865		8.4	%
	United Kingdom		4,658		8.5	%		3,770		7.7	%		2,671		5.8	%
	Sweden		2,046		3.8	%		2,206		4.5	%		2,170		4.7	%
	Other		2,403		4.4	%		2,207		4.5	%		2,053		4.5	%

		$	54,514		100	%	$	48,868		100	%	$	45,930		100	%


	Net long-lived assets, consisting of property and equipment, net, 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 area were as follows:



		As of January 31,
		2014		2013			2012
	United States	$	6,098	$	4,678		$	3,080
	France		849		1,068			62
	Germany		117		144			79
	Japan		201		204			123
	Other		91		82			20

		$	7,356	$	6,176		$	3,364

Employee_Benefit_Plans

Employee Benefit Plans	12 Months Ended
Employee Benefit Plans	Jan. 31, 2014
Postemployment Benefits [Abstract]	'
Employee Benefit Plans	'
	18. Employee Benefit Plans
	401(k) Plan
	The Company has an employee benefit plan for its United States-based employees under Section 401(k) of the Internal Revenue Code. The Plan allows all eligible employees to make contributions up to a specified percentage of their compensation. Under the Plan, the Company may, but is not obligated to, match a portion of the employee contribution up to a defined maximum. For the year ended January 31, 2014, the Company made a total contribution of $468. For the year ended January 31, 2013, the Company made a total contribution of $498. The Company made no matching contribution for the year ended January 31, 2012.
	Foreign Defined Contribution Plans
	The Company, through its wholly owned subsidiaries, contributes to local defined contribution plans that provide retirement benefits for the Company’s foreign based employees. For the years ended January 31, 2014, 2013 and 2012, the Company, through its subsidiaries, made contributions of $976, $826, and $680, respectively, to these plans.

Quarterly_Results_of_Operation

Quarterly Results of Operations (Unaudited)	12 Months Ended
Quarterly Results of Operations (Unaudited)	Jan. 31, 2014
Quarterly Financial Information Disclosure [Abstract]	'
Quarterly Results of Operations (Unaudited)	'
	19. Quarterly Results of Operations (Unaudited)
	The following table sets forth the Company’s unaudited operating results for each of the eight quarters in the two-year period ended January 31, 2014. The information is derived from the Company’s unaudited financial statements. In the opinion of management, the Company’s unaudited financial statements include all adjustments (consisting only of normal recurring adjustments) necessary for a fair presentation thereof. The financial information presented for the interim periods has been prepared in a manner consistent with the Company’s accounting policies described in Note 2 and should be read in conjunction therewith. Operating results for interim periods are not necessarily indicative of the results that may be expected for a full-year period or any future period.


		Fiscal Year 2014 Quarter Ended												Fiscal Year 2013 Quarter Ended
		April 30,			July 31,			October 31,			January 31,			April 30,			July 31,			October 31,			January 31,
		2013			2013			2013			2014			2012			2012			2012			2013
	License revenue	$	10,692		$	10,719		$	11,121		$	12,047		$	10,013		$	10,215		$	10,317		$	10,606
	Project revenue		1,796			1,985			2,987			3,167			1,281			1,618			2,295			2,523

	Total revenues		12,488			12,704			14,108			15,214			11,294			11,833			12,612			13,129
	Operating expenses:
	Cost of revenues		3,671			3,833			4,023			4,432			3,223			3,112			3,644			4,175
	Sales and marketing		2,117			2,179			2,243			3,004			1,600			1,709			1,529			2,277
	Research and development		4,386			4,450			4,428			4,976			4,140			4,157			4,113			4,277
	General and administrative		2,771			2,426			2,736			2,961			1,958			1,968			2,435			2,591

	Total operating expenses		12,945			12,888			13,430			15,373			10,921			10,946			11,721			13,320

	(Loss) income from operations		(457	)		(184	)		678			(159	)		373			887			891			(191	)

	Other (expense) income, net:
	Foreign exchange gain (loss)		37			(93	)		31			(58	)		—			326			(115	)		(194	)
	Interest expense, net		(377	)		(171	)		(67	)		(64	)		(412	)		(409	)		(402	)		(408	)
	Other income (expense), net		2			(752	)		2			3			66			445			2			16

	Total other (expense) income, net		(338	)		(1,016	)		(34	)		(119	)		(346	)		362			(515	)		(586	)

	(Loss) income before income taxes		(795	)		(1,200	)		644			(278	)		27			1,249			376			(777	)
	Benefit (provision) for income taxes		254			402			(128	)		392			35			(367	)		(217	)		437

	Net (loss) income	$	(541	)	$	(798	)	$	516		$	114		$	62		$	882		$	159		$	(340	)

	Basic (loss) income per share	$	(0.04	)	$	(0.06	)	$	0.04		$	0.01		$	0.12		$	0.2		$	0.01		$	(0.03	)
	Diluted (loss) income per share	$	(0.04	)	$	(0.06	)	$	0.04		$	0.01		$	0.01		$	0.7		$	0.01		$	(0.03	)

Schedule_II_Valuation_and_Qual

Schedule II Valuation and Qualifying Accounts	12 Months Ended
Schedule II Valuation and Qualifying Accounts	Jan. 31, 2014
Valuation And Qualifying Accounts [Abstract]	'
Schedule II Valuation and Qualifying Accounts	'
	Schedule II
	Valuation and Qualifying Accounts
	For the years ended January 31, 2014, 2013 and 2012


			Balance at		Amounts			Deductions			Balance at
			Beginning of		Charged (Credited)			From			End of
			Period		to Expense			Allowance (1)			Period
			(in thousands)
	Allowance for doubtful accounts
	Year Ended January 31, 2014		$	—	$	21		$	(21	)	$	—
	Year Ended January 31, 2013		$	—	$	9		$	(9	)	$	—
	Year Ended January 31, 2012		$	—	$	—		$	—		$	—

	Valuation allowance for deferred tax assets
	Year Ended January 31, 2014		$	409	$	(104	)	$	—		$	305
	Year Ended January 31, 2013		$	254	$	155		$	—		$	409
	Year Ended January 31, 2012		$	12,915	$	(12,501	)	$	(160	)	$	254
	-1	Deductions consist of amounts written off during the period.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Jan. 31, 2014

Accounting Policies [Abstract]

Applicable Accounting Guidance

Basis of Presentation and Principles of Consolidation

Use of Estimates

Change in Estimates

Revenue Recognition

Software

Software as a service (OnDemand)

Projects

Multiple element arrangements

Multiple element arrangements may include customer rights to any combination of software, project deliverables, software as a service, maintenance and training.

Foreign Currency Translation

Concentration of Credit Risk and Significant Customers

Year Ended January 31,

2014

2013

2012

Percentage of

total revenues

accounts

total revenues

accounts

total revenues

accounts

receivable at

fiscal year end

Customer A

Customer B

Customer C

Customer D

Customer E

less than 10%

Concentration of Other Risks

Cash and Cash Equivalents and Restricted Cash

Accounts Receivable and Allowances for Doubtful Accounts

Property and Equipment, Net

Property and Equipment, net

Asset classification

Estimated Useful Life

Computer equipment

3-5 years

Software

3 years

Office equipment and furniture

3-5 years

Leasehold improvements

Shorter of useful life or remaining

life of lease

Impairment of Long-Lived Assets

Research and Development Expenses

Advertising Costs

Advertising costs are expensed as incurred. To date, the Company has not incurred significant advertising costs.

Income Taxes

Comprehensive Income and Accumulated Comprehensive Income

Fair Value of Common Stock Prior to Initial Public Offering

Fair Value of Common Stock prior to Initial Public Offering

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.

Stock-Based Compensation

The Company computes volatility under the “calculated value method” of ASC 718, Compensation—Stock Compensation. As the Company does not have a trading history for its common stock prior to its initial public offering or a significant trading range for its common stock trading since the initial public offering, the Company estimates the expected price volatility for its common stock by taking the average historic price volatility for selected industry peers based on daily price observations over a period equivalent to the expected term of the stock options granted. The Company’s industry peers consist of several public companies that are similar to the Company in size, stage of life cycle and financial leverage. The Company intends to consistently apply this process using the same or similar public companies until a sufficient amount of historical information regarding the volatility of its common stock becomes available, or unless circumstances change such that the currently utilized companies are no longer similar to the Company, in which case, more suitable companies with publicly available share prices will be utilized in the calculation.

Since adopting ASC 718, the Company has been unable to use historical employee exercise and option expiration data to estimate the expected term assumption for the Black-Scholes grant-date valuation. As such, the Company has utilized the “simplified” method, as prescribed by Staff Accounting Bulletin No. 107, Share-Based Payment, to estimate on a formula basis the expected term of its stock options considered to have “plain vanilla” characteristics. For option issuances that do not have “plain vanilla” characteristics, the Company uses an average based on the specific facts and circumstances of such issuances.

Net (Loss) Income per Share

Recent Accounting Pronouncements

Segment Reporting

ASC 280, Segment Reporting establishes standards for reporting information regarding operating segments in annual financial statements and requires selected information of those segments to be presented in annual and interim reports issued to stockholders. Operating segments are identified as components of an enterprise about which separate discrete financial information is available for evaluation by the chief operating decision-maker, or decision-making group, in making decisions on how to allocate resources and assess performance. The Company’s chief decision maker, as defined under ASC 280, is a combination of the chief executive officer and the chief operating officer. The Company views its operations and manages its business as one operating segment.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)

12 Months Ended

Jan. 31, 2014

Accounting Policies [Abstract]

Customers Accounted for Greater Than Ten Percent of Total Revenues or Ten Percent of Accounts Receivable

Year Ended January 31,

2014

2013

2012

Percentage of

total revenues

accounts

total revenues

accounts

total revenues

accounts

receivable at

fiscal year end

Customer A

Customer B

Customer C

Customer D

Customer E

less than 10%

Estimated Useful Life of Assets

Depreciation is computed using the straight-line method over the estimated useful life of each asset, generally is as follows:

Asset classification

Estimated Useful Life

Computer equipment

3-5 years

Software

3 years

Office equipment and furniture

3-5 years

Leasehold improvements

Shorter of useful life or remaining

life of lease

Property_and_Equipment_Net_Tab

Property and Equipment, Net (Tables)	12 Months Ended
Property and Equipment, Net (Tables)	Jan. 31, 2014
Property Plant And Equipment [Abstract]	'
Schedule of Property and Equipment	'

	Property and equipment, net consist of the following:



		January 31,			January 31,
		2014			2013
	Computer software and equipment	$	18,635		$	15,718
	Office equipment and furniture		444			371
	Leasehold improvements		2,627			2,732

	Total property and equipment		21,706			18,821
	Less accumulated depreciation		(14,350	)		(12,645	)

	Property and equipment, net	$	7,356		$	6,176

Acquired_Intangible_Assets_Tab

Acquired Intangible Assets (Tables)	12 Months Ended
Acquired Intangible Assets (Tables)	Jan. 31, 2014
Goodwill And Intangible Assets Disclosure [Abstract]	'
Fair Value of Certain Acquired Identifiable Intangible Assets and Related Estimates of Useful Lives	'
	The following table reflects the fair value of certain identifiable intangible assets acquired from science + computing AG on November 30, 2011 and related estimates of useful lives:


		Fair		Useful
		Value		Life
				(Years)
	Intellectual property	$	3,505		10
	Access to facilities contract		38		1

	Total	$	3,543

Carrying Value of Intangible Assets	'

	The following table reflects the carrying value of intangible assets as of January 31, 2014:



		Cost		Accumulated			Net Book
		Cost		Amortization			Value
	Intellectual property	$	3,505	$	(760	)	$	2,745
	Access to facilities contract		38		(38	)		—

	Total	$	3,543	$	(798	)	$	2,745


	The following table reflects the carrying value of intangible assets as of January 31, 2013:





		Cost		Accumulated			Net Book
		Cost		Amortization			Value
	Intellectual property	$	3,505	$	(409	)	$	3,096
	Access to facilities contract		38		(38	)		—

	Total	$	3,543	$	(447	)	$	3,096

Expected Future Amortization Expense Related to Acquired Intangible Assets	'
	The following table presents the expected future amortization expense related to the Company’s acquired intangible assets for the next five fiscal years and thereafter as of January 31, 2014:


	2015	$	351
	2016		350
	2017		351
	2018		350
	2019		351
	2020 and thereafter		992

		$	2,745

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)

12 Months Ended

Jan. 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 January 31, 2014:

Total

Level 1

Level 2

Level 3

Assets:

Money market funds

15,008

—

Accrued_Expenses_Tables

Accrued Expenses (Tables)	12 Months Ended
Accrued Expenses (Tables)	Jan. 31, 2014
Payables And Accruals [Abstract]	'
Accrued Expenses	'
	Accrued expenses consist of the following:


		January 31,		January 31,
		2014		2013
	Accrued payroll	$	1,603	$	1,457
	Sales and withholding taxes		3,158		2,595
	Accrued commissions and bonuses		2,456		1,543
	Accrued income taxes payable		571		73
	Deferred rent, current portion		602		523
	Legal and professional		489		451
	Other accrued expenses		1,406		642

	Total accrued expenses	$	10,285	$	7,284

Deferred_Rent_Tables

Deferred Rent (Tables)	12 Months Ended
Deferred Rent (Tables)	Jan. 31, 2014
Text Block [Abstract]	'
Deferred Rent	'
	Deferred rent at January 31, 2014 and January 31, 2013 is as follows:


		January 31,			January 31,
		2014			2013
	Leasehold improvement incentive	$	572		$	836
	Non-cash rent expense		861			1,169

	Total deferred rent		1,433			2,005
	Less current portion included in accrued expenses		(602	)		(523	)

	Deferred rent, net of current portion	$	831		$	1,482

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	12 Months Ended
Commitments and Contingencies (Tables)	Jan. 31, 2014
Commitments And Contingencies Disclosure [Abstract]	'
Future Minimum Lease Payments Under Capital Leases	'
	Future minimum lease payments under capital lease commitments as of January 31, 2014 are as follows:


	Year ended January 31,
	2015	$	2,704
	2016		1,992
	2017		852
	2018		4

	Total future minimum lease payments		5,552
	Less: Interest		431

	Present value of future minimum lease payments		5,121
	Current portion of capital lease obligation		2,426

	Long-term capital lease obligation	$	2,695

Future Minimum Lease Payments Under Operating Lease Commitments	'
	Future minimum lease payments under operating lease commitments as of January 31, 2014 are as follows:


	Year ended January 31,
	2015	$	3,382
	2016		3,033
	2017		929
	2018		590
	2019		475
	Thereafter		1,070

	Total	$	9,479

Stock_Based_Compensation_Table

Stock Based Compensation (Tables)	12 Months Ended
Stock Based Compensation (Tables)	Jan. 31, 2014
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Common and Preferred Stock Incentive Plans	'
	The Company’s common and preferred stock incentive plans are summarized as follows (the table reflects options for preferred stock on an as converted to common stock basis):


	Plan		Authorized and			Outstanding			Available to
			Reserved			January 31,			Issue
						2014
	1999 Series G Convertible Preferred Nonqualified Stock Option Plan (1)			384,615			2,820			—
	2005 Series G Convertible Preferred Stock Incentive Plan (1)			1,846,153			1,278,627			—
	2007 Stock Incentive Plan (1)			1,076,923			810,788			—
	2011 Stock Incentive Plan			769,230			287,876	(2)		480,979

				4,076,921			2,380,111			480,979


	-1	Effective upon the consummation of its initial public offering on July 3, 2012, the Company ceased issuing awards under any plan other than its 2011 Stock Incentive Plan.
	-2	Outstanding awards include 5,224 restricted stock units granted for the first time in September 2013 to certain members of the board of directors, which will fully vest in June 2014.
Fair Value of Stock Option Awards	'
	The fair value of stock option awards was estimated on the date of grant using the Black-Scholes option-pricing model with the following assumptions:


			Years Ended January 31,
			2014			2013			2012
	Expected life (years)			6.25			6.25			6.48
	Risk-free interest rate			2.21	%		1.09	%		2.11	%
	Expected volatility			50.6	%		51.6	%		56.7	%
	Expected dividend yield			0	%		0	%		0	%
Changes in Common and Preferred Stock Options Issued	'

	A summary of the changes in common and preferred stock options issued under all of the existing stock option plans is as follows (the table reflects options for preferred stock on an as converted to common stock basis):



			Year Ended January 31, 2014
			Number of			Weighted			Weighted Average			Aggregate
			Options			Average			Remaining Contractual			Intrinsic
						Exercise Price			Term (in years)			Value (1)
	Outstanding—beginning of period			2,307,280		$	4.58
	Granted			184,728			13.36
	Exercised			(73,167	)		3.46
	Cancelled			(43,954	)		10.49

	Outstanding—end of period			2,374,887		$	5.19			4.2		$	21,137

	Exercisable—end of period			1,855,542		$	3.3			3		$	19,999

	Vested or Expected to Vest—end of period			2,317,942		$	5.02			4.1		$	21,009



	-1	The aggregate intrinsic value was calculated based on the positive difference between the fair value of the Company’s stock on January 31, 2014 and the exercise price of the underlying options.
Summarizes Information Relating to Stock Options Granted and Exercised	'
	The following table summarizes information relating to stock options granted and exercised:


			Years Ended January 31
			2014			2013			2012
	Weighted average fair value of options granted		$	6.8		$	5.39		$	6.37
	Aggregate intrinsic value of options exercised (1)			528			287			285

	-1	The aggregate intrinsic value was calculated based on the positive difference between the fair value of the Company’s stock at exercise and the exercise price of the underlying options.
Stock-Based Compensation Expense	'
	Total stock-based compensation expense was recorded within the consolidated statement of operations for the fiscal years ended January 31, 2014, 2013 and 2012 as follows:


			Years Ended January 31
			2014			2013			2012
	Cost of revenues		$	137		$	111		$	79
	Sales and marketing			239			190			119
	Research and development			376			308			227
	General and administrative			458			315			211

	Total		$	1,210		$	924		$	636

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
Income Taxes (Tables)	Jan. 31, 2014
Income Tax Disclosure [Abstract]	'
Components of (Loss) Income Before Income Taxes	'
	The components of (loss) income before income taxes are as follows:


		Years Ended January 31,
		2014			2013			2011
	United States	$	(3,068	)	$	(355	)	$	2,797
	Foreign		1,439			1,230			635

	(Loss) income before income taxes	$	(1,629	)	$	875		$	3,432

Reconciliation of Effective Tax Rate to US Federal Statutory Rate	'
	The Company’s effective tax rate varies from the U.S. federal statutory rate follows:


		Years Ended January 31,
		2014			2013			2012
	United States federal income tax rate		34	%		34	%		34	%
	State taxes, net of federal benefit		0.6	%		2.6	%		0.7	%
	Meals and entertainment		(1.6	)%		3.8	%		0.6	%
	Stock compensation		(16.1	)%		26.4	%		4.8	%
	Executive compensation		(5.1	)%		7.4	%		2.9	%
	Non-deductible mark-to-market and interest adjustments		0	%		(19.6	)%		2.3	%
	United States federal and state credits		30.6	%		(60.2	)%		(15.2	)%
	Change in valuation allowance		6.4	%		17.7	%		(355.8	)%
	Foreign taxes and rate differential		21.7	%		(17.8	)%		11.9	%
	Tax rate changes		(0.3	)%		(1.7	)%		1.2	%
	Expiration of tax attributes		(12.7	)%		21	%		—
	Other		(1.0	)%		(0.8	)%		0.7	%

	Total		56.5	%		12.8	%		(311.9	)%

Components of Deferred Tax Assets and Liabilities	'

	Significant components of the Company’s deferred tax assets and liabilities are as follows:



		January 31,
		2014			2013
	Deferred tax assets:
	Net operating loss carryforwards	$	9,282		$	9,078
	Business credit carryforwards		4,894			3,462
	Accrued expenses		789			213
	Stock compensation		318			208
	Deferred revenue		15			109
	Deferred rent		502			694
	Other		71			24

	Gross deferred tax assets		15,871			13,788
	Valuation allowance		(305	)		(409	)

	Total deferred tax assets		15,566			13,379

	Deferred tax liabilities:
	Depreciation		(177	)		(229	)
	Other		(79	)		(11	)

	Total deferred tax liabilities		(256	)		(240	)

	Net deferred tax assets	$	15,310		$	13,139

Benefit (Provision) for Income Taxes	'
	The components of the benefit (provision) for income taxes are as follows:


		Years Ended January 31,
		2014			2013			2012
	Current:
	Federal	$	(944	)	$	(663	)	$	(727	)
	State		(28	)		(9	)		(72	)
	Foreign		(292	)		(86	)		(777	)

	Total current		(1,264	)		(758	)		(1,576	)
	Deferred:
	Federal		1,908			812			(400	)
	State		64			236			137
	Foreign		108			(247	)		44
	Change in valuation allowance		104			(155	)		12,501

	Total deferred		2,184			646			12,282

	Total benefit (provision) for income taxes	$	920		$	(112	)	$	10,706

Roll Forward of Uncertainties in its Income Tax Provision Liability	'
	A tabular roll forward of the Company’s uncertainties in its income tax provision liability is presented below:


		Year Ended January 31
		2014			2013
	Gross balance at February 1	$	2,259		$	2,407
	Additions based on tax positions related to the current year		218			146
	Reductions for tax positions of prior years		(310	)		(294	)

	Gross balance at January 31	$	2,167		$	2,259

Net_Loss_Income_per_Share_Tabl

Net (Loss) Income per Share (Tables)	12 Months Ended
Net (Loss) Income per Share (Tables)	Jan. 31, 2014
Earnings Per Share [Abstract]	'
Computation of Basic and Diluted Net (Loss) Income per Common Share	'
	The following table sets forth the components of the computation of basic and diluted net (loss) income per common share for the periods indicated:


		Year Ended January 31,
		2014			2013		2012
	Numerator:
	Net (loss) income	$	(709	)	$	763	$	14,138

	Denominator:
	Weighted average common shares, basic		13,326,883			7,929,364		493,763
	Dilutive effect of:
	Options to purchase common stock		—			152,871		78,189
	Options to purchase preferred stock		—			1,209,778		1,209,440
	Warrants to purchase common stock		—			40,752		40,346
	Convertible preferred stock		—			3,563,722		8,503,073

	Weighted average common shares outstanding, fully diluted		13,326,883			12,896,487		10,324,811

	Basic net (loss) income per share	$	(0.05	)	$	0.1	$	28.63

	Diluted net (loss) income per share	$	(0.05	)	$	0.06	$	1.37

Outstanding Options and Warrants Excluded from Computation of Diluted Net (Loss) Income per Share	'

	The following outstanding options, awards and warrants were excluded from the computation of diluted net (loss) income per share for the periods indicated because including them would have had an anti-dilutive effect:



		Year Ended January 31,
		2014			2013		2012
	Options, awards and warrants		2,401,649			630,909		574,789

Geographic_and_Segment_Informa1

Geographic and Segment Information (Tables)	12 Months Ended
Geographic and Segment Information (Tables)	Jan. 31, 2014
Segment Reporting [Abstract]	'
Revenues by Geographic Location	'
	Revenues by geographic location in total and as a percentage of total revenues are as follows:


		Year Ended January 31,
		2014					2013					2012
		Revenue		Percentage of			Revenue		Percentage of			Revenue		Percentage of
		Revenue		Revenue			Revenue		Revenue			Revenue		Revenue
	Geographic location:
	United States	$	12,202		22.3	%	$	11,182		22.9	%	$	10,409		22.7	%
	Japan		8,810		16.2	%		10,024		20.5	%		9,937		21.6	%
	Germany		10,287		18.9	%		7,925		16.2	%		5,959		13	%
	France		9,424		17.3	%		7,358		15.1	%		8,866		19.3	%
	Korea		4,684		8.6	%		4,196		8.6	%		3,865		8.4	%
	United Kingdom		4,658		8.5	%		3,770		7.7	%		2,671		5.8	%
	Sweden		2,046		3.8	%		2,206		4.5	%		2,170		4.7	%
	Other		2,403		4.4	%		2,207		4.5	%		2,053		4.5	%

		$	54,514		100	%	$	48,868		100	%	$	45,930		100	%

Net Long-Lived Assets by Principal Geographic Areas	'

	Net long-lived assets by principal geographic area were as follows:



		As of January 31,
		2014		2013			2012
	United States	$	6,098	$	4,678		$	3,080
	France		849		1,068			62
	Germany		117		144			79
	Japan		201		204			123
	Other		91		82			20

		$	7,356	$	6,176		$	3,364

Quarterly_Results_of_Operation1

Quarterly Results of Operations (Unaudited) (Tables)	12 Months Ended
Quarterly Results of Operations (Unaudited) (Tables)	Jan. 31, 2014
Quarterly Financial Information Disclosure [Abstract]	'
Operating Results for Interim Periods	'
	Operating results for interim periods are not necessarily indicative of the results that may be expected for a full-year period or any future period.


		Fiscal Year 2014 Quarter Ended												Fiscal Year 2013 Quarter Ended
		April 30,			July 31,			October 31,			January 31,			April 30,			July 31,			October 31,			January 31,
		2013			2013			2013			2014			2012			2012			2012			2013
	License revenue	$	10,692		$	10,719		$	11,121		$	12,047		$	10,013		$	10,215		$	10,317		$	10,606
	Project revenue		1,796			1,985			2,987			3,167			1,281			1,618			2,295			2,523

	Total revenues		12,488			12,704			14,108			15,214			11,294			11,833			12,612			13,129
	Operating expenses:
	Cost of revenues		3,671			3,833			4,023			4,432			3,223			3,112			3,644			4,175
	Sales and marketing		2,117			2,179			2,243			3,004			1,600			1,709			1,529			2,277
	Research and development		4,386			4,450			4,428			4,976			4,140			4,157			4,113			4,277
	General and administrative		2,771			2,426			2,736			2,961			1,958			1,968			2,435			2,591

	Total operating expenses		12,945			12,888			13,430			15,373			10,921			10,946			11,721			13,320

	(Loss) income from operations		(457	)		(184	)		678			(159	)		373			887			891			(191	)

	Other (expense) income, net:
	Foreign exchange gain (loss)		37			(93	)		31			(58	)		—			326			(115	)		(194	)
	Interest expense, net		(377	)		(171	)		(67	)		(64	)		(412	)		(409	)		(402	)		(408	)
	Other income (expense), net		2			(752	)		2			3			66			445			2			16

	Total other (expense) income, net		(338	)		(1,016	)		(34	)		(119	)		(346	)		362			(515	)		(586	)

	(Loss) income before income taxes		(795	)		(1,200	)		644			(278	)		27			1,249			376			(777	)
	Benefit (provision) for income taxes		254			402			(128	)		392			35			(367	)		(217	)		437

	Net (loss) income	$	(541	)	$	(798	)	$	516		$	114		$	62		$	882		$	159		$	(340	)

	Basic (loss) income per share	$	(0.04	)	$	(0.06	)	$	0.04		$	0.01		$	0.12		$	0.2		$	0.01		$	(0.03	)
	Diluted (loss) income per share	$	(0.04	)	$	(0.06	)	$	0.04		$	0.01		$	0.01		$	0.7		$	0.01		$	(0.03	)

Description_of_Business_Additi

Description of Business - Additional Information (Detail) (USD $)	0 Months Ended	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Jul. 03, 2012	Jan. 31, 2014	Jan. 31, 2013
Schedule Of Common Stock [Line Items]	'	'	'
Proceeds received from initial public offering	$34,576	'	$34,576
Underwriting discounts and commissions	2,917	'	'
Issuance expenses incurred in offering	4,174	'	'
Conversion ratio of preferred stock to common stock	'Two thirteenths	'	'
Initial Public Offering [Member]	'	'	'
Schedule Of Common Stock [Line Items]	'	'	'
Issued common stock in public offering	4,166,667	'	'
Public offering price per share	$10	'	'
Underwriting discounts and commissions	$2,917	'	'

Summary_of_Significant_Account3

Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	3 Months Ended								12 Months Ended
	Jan. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2013	Oct. 31, 2012	Jul. 31, 2012	Jan. 31, 2012	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Net book value of assets	$2,755,000	'	'	'	'	'	'	'	$2,755,000	'	'
Change in estimate on depreciation expense	'	'	'	'	'	'	'	'	456,000	'	'
Change in estimate on earning per share	'	'	'	'	'	'	'	'	$0.03	'	'
Foreign currency gain (losses) included in other expense, net	-58,000	31,000	-93,000	37,000	-194,000	-115,000	326,000	'	-83,000	17,000	-106,000
Restricted cash	525,000	'	'	'	'	'	'	'	525,000	'	'
Maturity period	'	'	'	'	'	'	'	'	'90 days	'	'
Bad debt expense	'	'	'	'	'	'	'	'	21,000	'	'
Impairment of long lived assets	'	'	'	'	'	'	'	'	0	0	'
Leasehold improvements, impairment charge	'	'	'	'	'	'	'	'	'	'	300,000
Reversal of deferred tax asset valuation allowance	'	'	'	'	'	'	'	'	'	'	12,501,000
Valuation allowance	305,000	'	'	'	409,000	'	'	'	305,000	409,000	'
Reduced valuation allowance	'	'	'	'	'	'	'	12,501,000	104,000	-155,000	12,501,000
Network Assets [Member]	'	'	'	'	'	'	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Average useful life of assets	'	'	'	'	'	'	'	'	'3 years	'	'
Reevaluation [Member] \| Network Assets [Member]	'	'	'	'	'	'	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Average useful life of assets	'	'	'	'	'	'	'	'	'5 years	'	'
State Investment Tax Credits and R&D Credits [Member]	'	'	'	'	'	'	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Valuation allowance	'	'	'	'	155,000	'	'	'	'	155,000	'
Reduced valuation allowance	'	'	'	'	'	'	'	'	'	$155,000	'

Summary_of_Significant_Account4

Summary of Significant Accounting Policies - Customers Accounted for Greater Than Ten Percent of Total Revenues or Ten Percent of Accounts Receivable (Detail)	12 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Customer A [Member]	'	'	'
Revenue, Major Customer [Line Items]	'	'	'
Percentage of total revenues	12.00%	11.00%	13.00%
Percentage of accounts receivable at fiscal year end	21.00%	24.00%	'
Customer B [Member]	'	'	'
Revenue, Major Customer [Line Items]	'	'	'
Percentage of accounts receivable at fiscal year end	'	15.00%	19.00%
Customer C [Member]	'	'	'
Revenue, Major Customer [Line Items]	'	'	'
Percentage of accounts receivable at fiscal year end	15.00%	'	'
Customer D [Member]	'	'	'
Revenue, Major Customer [Line Items]	'	'	'
Percentage of accounts receivable at fiscal year end	14.00%	'	15.00%
Customer E [Member]	'	'	'
Revenue, Major Customer [Line Items]	'	'	'
Percentage of accounts receivable at fiscal year end	10.00%	11.00%	13.00%

Summary_of_Significant_Account5

Summary of Significant Accounting Policies - Estimated Useful Life of Assets (Detail)	12 Months Ended
	Jan. 31, 2014
Computer Equipment [Member] \| Minimum [Member]	'
Property, Plant and Equipment [Line Items]	'
Estimated Useful Life	'3 years
Computer Equipment [Member] \| Maximum [Member]	'
Property, Plant and Equipment [Line Items]	'
Estimated Useful Life	'5 years
Software [Member]	'
Property, Plant and Equipment [Line Items]	'
Estimated Useful Life	'3 years
Office Equipment and Furniture [Member] \| Minimum [Member]	'
Property, Plant and Equipment [Line Items]	'
Estimated Useful Life	'3 years
Office Equipment and Furniture [Member] \| Maximum [Member]	'
Property, Plant and Equipment [Line Items]	'
Estimated Useful Life	'5 years
Leasehold Improvements [Member]	'
Property, Plant and Equipment [Line Items]	'
Estimated Useful Life	'Shorter of useful life or remaining life of lease

Property_and_Equipment_Schedul

Property and Equipment - Schedule of Property and Equipment (Detail) (USD $)	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
In Thousands, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Property, Plant and Equipment [Line Items]	'	'	'
Total property and equipment	$21,706	$18,821	'
Less accumulated depreciation	-14,350	-12,645	'
Property and equipment, net	7,356	6,176	3,364
Computer Software and Equipment [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Total property and equipment	18,635	15,718	'
Office Equipment and Furniture [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Total property and equipment	444	371	'
Leasehold Improvements [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Total property and equipment	$2,627	$2,732	'

Property_and_Equipment_Additio

Property and Equipment - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Property Plant And Equipment [Abstract]	'	'	'
Depreciation expense	$1,834	$1,626	$1,438
Cost of equipment held pursuant to capital leases	16,802	14,450	'
Accumulated amortization	$10,997	$9,752	'

Acquired_Intangible_Assets_Fai

Acquired Intangible Assets - Fair Value of Certain Acquired Identifiable Intangible Assets and Related Estimates of Useful Lives (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013
Acquired Finite-Lived Intangible Assets [Line Items]	'	'
Acquired identifiable intangible assets, fair value	$3,543	$3,543
Intellectual Properties [Member]	'	'
Acquired Finite-Lived Intangible Assets [Line Items]	'	'
Acquired identifiable intangible assets, fair value	3,505	'
Acquired identifiable intangible assets, estimated useful life	'10 years	'
Access to Facilities Contract [Member]	'	'
Acquired Finite-Lived Intangible Assets [Line Items]	'	'
Acquired identifiable intangible assets, fair value	$38	$38
Acquired identifiable intangible assets, estimated useful life	'1 year	'

Acquired_Intangible_Assets_Car

Acquired Intangible Assets - Carrying Value of Intangible Assets (Detail) (USD $)	Jan. 31, 2014	Jan. 31, 2013
In Thousands, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013
Finite-Lived Intangible Assets [Line Items]	'	'
Cost	$3,543	$3,543
Accumulated Amortization	-798	-447
Net Book Value	2,745	3,096
Intellectual Property [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Cost	3,505	3,505
Accumulated Amortization	-760	-409
Net Book Value	2,745	3,096
Access to Facilities Contract [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Cost	38	38
Accumulated Amortization	($38)	($38)

Acquired_Intangible_Assets_Add

Acquired Intangible Assets - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Goodwill And Intangible Assets Disclosure [Abstract]	'	'	'
Intangible assets amortization expense	$351	$383	$64

Acquired_Intangible_Assets_Exp

Acquired Intangible Assets - Expected Future Amortization Expense Related to Acquired Intangible Assets (Detail) (USD $)	Jan. 31, 2014
In Thousands, unless otherwise specified	Jan. 31, 2014
Goodwill And Intangible Assets Disclosure [Abstract]	'
2015	$351
2016	350
2017	351
2018	350
2019	351
2020 and thereafter	992
Finite Lived Intangible Assets Amortization Expenses, Total	$2,745

Fair_Value_Measurements_Fair_V

Fair Value Measurements - Fair Value Hierarchy for Financial Assets and Liabilities Measured at Fair Value (Detail) (USD $)	Jan. 31, 2014
In Thousands, unless otherwise specified	Jan. 31, 2014
Assets:	'
Money market funds	$15,008
Level 1 [Member]	'
Assets:	'
Money market funds	15,008
Level 2 [Member]	'
Assets:	'
Money market funds	'
Level 3 [Member]	'
Assets:	'
Money market funds	'

Accrued_Expenses_Accrued_Expen

Accrued Expenses - Accrued Expenses (Detail) (USD $)	Jan. 31, 2014	Jan. 31, 2013
In Thousands, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013
Payables And Accruals [Abstract]	'	'
Accrued payroll	$1,603	$1,457
Sales and withholding taxes	3,158	2,595
Accrued commissions and bonuses	2,456	1,543
Accrued income taxes payable	571	73
Deferred rent, current portion	602	523
Legal and professional	489	451
Other accrued expenses	1,406	642
Total accrued expenses	$10,285	$7,284

Deferred_Rent_Additional_Infor

Deferred Rent - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jan. 31, 2014
Deferred Revenue Disclosure [Abstract]	'
Tenant improvement allowance	$1,958
Total incentive	$148
Amortization of lease incentive period	'4 months

Deferred_Rent_Deferred_Rent_De

Deferred Rent - Deferred Rent (Detail) (USD $)	Jan. 31, 2014	Jan. 31, 2013
In Thousands, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013
Deferred Revenue Disclosure [Abstract]	'	'
Leasehold improvement incentive	$572	$836
Non-cash rent expense	861	1,169
Total deferred rent	1,433	2,005
Less current portion included in accrued expenses	-602	-523
Deferred rent, net of current portion	$831	$1,482

Debt_Additional_Information_De

Debt - Additional Information (Detail) (USD $)

1 Months Ended

3 Months Ended

12 Months Ended

1 Months Ended

12 Months Ended

1 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

31-May-13

Jul. 31, 2013

Jan. 31, 2013

Jan. 31, 2014

Jan. 31, 2013

Jan. 31, 2012

Mar. 30, 2012

Jan. 28, 2011

31-May-10

Jan. 31, 2014

Jan. 28, 2011

Jan. 31, 2014

Jan. 31, 2013

Jan. 31, 2012

Jan. 28, 2011

31-May-10

Jan. 31, 2014

31-May-10

Jan. 31, 2014

28-Jan-11

March Thirty Two Thousand Twelve [Member]

Term Loans [Member]

Related Party [Member]

Accounts Receivable Securitization Facility [Member]

Renewed and Extended [Member]

Maximum [Member]

Debt Disclosure [Line Items]

Term loans

$8,500

$1,000

Borrowing

3,500

5,000

Loan and security agreement maturity period

'54 months

Interest rate

10.50%

Maturity date of agreement

1-Aug-15

1-Oct-16

Additional interest rate

2.50%

Additional interest value

125

Interest payments term

'Interest only payments were payable during the first twelve months with principal and interest payments required for forty-two months thereafter.

Interest expense

138

Remaining outstanding principal

6,852

Accrued interest

Deferred origination fees

213

Prepayment interest penalty

290

Additional interest penalties after second anniversary

3.00%

Additional interest penalties prior second year

4.00%

Loss from the extinguishment of debt

755

-755

Expected savings of cash interest

429

Expected savings of cash interest, year one

428

Expected savings of cash interest, year two

170

Expected savings of cash interest, year three

Non-cash interest expense

131

478

295

Credit agreement amount

10,000

Interest rate

1.50%

2.50%

Line of credit, expiration date

23-May-13

Cash Collateral fee

0.25%

0.38%

Borrowings

Repayments

Warrants_for_Preferred_Stock_A

Warrants for Preferred Stock - Additional Information (Detail) (USD $)	0 Months Ended			12 Months Ended
In Thousands, except Share data, unless otherwise specified	Jul. 06, 2012	Jul. 03, 2012	Jun. 08, 2012	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2011
Class of Warrant or Right [Line Items]	'	'	'	'	'	'	'
Exercise price of warrants issued	'	'	'	$0.94	'	'	'
Fair value of warrants	'	'	'	$1,049	'	'	'
Warrant term	'	'	'	'	'	'10 years	'9 years
Reverse stock split	'	'	'1-for-6.5	'	'	'	'
Exercise price of common stock	'	'	'	$6.11	'	'	'
Preferred stock converted into common stock and warrants	'	183,076	'	'	'	'	'
Marked to market on the fair value of the warrants, gain	'	165	'	'	'	'	'
Warrant fair value reclassified to additional paid-in capital	'	$1,324	'	'	$1,324	'	'
Cashless exercise warrants, purchase	161,538	'	'	'	'	'	'
Net issuance of common stock	67,268	'	'	'	'	'	'
Warrants as-converted basis, shares outstanding	'	'	'	21,538	21,538	'	'
Warrants [Member]	'	'	'	'	'	'	'
Class of Warrant or Right [Line Items]	'	'	'	'	'	'	'
Dividend yield	'	'	'	0.00%	'	'	'
Warrants [Member] \| Minimum [Member]	'	'	'	'	'	'	'
Class of Warrant or Right [Line Items]	'	'	'	'	'	'	'
Fair value assumptions expected volatility rate, warrants	'	'	'	54.92%	'	'	'
Risk-free interest rate	'	'	'	1.83%	'	'	'
Warrants [Member] \| Maximum [Member]	'	'	'	'	'	'	'
Class of Warrant or Right [Line Items]	'	'	'	'	'	'	'
Fair value assumptions expected volatility rate, warrants	'	'	'	55.73%	'	'	'
Risk-free interest rate	'	'	'	3.36%	'	'	'
Series G Preferred Stock [Member]	'	'	'	'	'	'	'
Class of Warrant or Right [Line Items]	'	'	'	'	'	'	'
Warrants to purchase shares of stock	'	'	'	1,190,000	'	'	'

Equity_Participation_Right_Add

Equity Participation Right - Additional Information (Detail) (USD $)	0 Months Ended	1 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Jul. 03, 2012	Jul. 31, 2009	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'	'
Discount for equity instrument	'	15.00%	'	'	'
Derivative instrument fair value	$0	'	'	'	'
Gain recorded in other income (expense)	276	'	'	-276	-276
Maximum [Member]	'	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'	'
Related party investment right	'	10,000	'	'	'

Commitments_and_Contingencies_1

Commitments and Contingencies - Future Minimum Lease Payments Under Capital Leases (Detail) (USD $)	Jan. 31, 2014	Jan. 31, 2013
In Thousands, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013
Commitments And Contingencies Disclosure [Abstract]	'	'
2015	$2,704	'
2016	1,992	'
2017	852	'
2018	4	'
Total future minimum lease payments	5,552	'
Less: Interest	431	'
Present value of future minimum lease payments	5,121	'
Current portion of capital lease obligation	2,426	2,051
Long-term capital lease obligation	$2,695	$2,818

Commitments_and_Contingencies_2

Commitments and Contingencies - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Contingencies And Commitments [Line Items]	'	'	'
Restricted cash	$525	'	'
Rent expense	2,823	2,720	2,481
Sub-rental income	324	318	318
Sub-rental lease agreement expire	31-Mar-16	'	'
Purchase obligations on 2015	2,087	'	'
Purchase obligations on 2016	2,060	'	'
Purchase obligations on 2017	1,142	'	'
Purchase obligations on 2018	600	'	'
Royalties expenses already paid	200	'	'
Contingent liability	0	'	'
Recorded liabilities for guarantees and indemnities	0	0	'
Corporate Headquarters [Member]	'	'	'
Contingencies And Commitments [Line Items]	'	'	'
Operating lease cover area maturity period	'8 years	'	'
Letter of credit	525	'	'
Restricted cash	525	525	'
Corporate Headquarters [Member] \| Operating Leases [Member]	'	'	'
Contingencies And Commitments [Line Items]	'	'	'
Operating lease cover area expiring	'2016	'	'
Maximum [Member]	'	'	'
Contingencies And Commitments [Line Items]	'	'	'
Certain office facility operating lease expiring	'2016-06	'	'
Royalties due	2,600	'	'
Maximum [Member] \| Corporate Headquarters [Member]	'	'	'
Contingencies And Commitments [Line Items]	'	'	'
Operating lease covers Area	65,941	'	'
Maximum [Member] \| Other Locations [Member]	'	'	'
Contingencies And Commitments [Line Items]	'	'	'
Certain office facility operating lease expiring	'2021-04	'	'
Minimum [Member]	'	'	'
Contingencies And Commitments [Line Items]	'	'	'
Royalties due	$0	'	'

Commitments_and_Contingencies_3

Commitments and Contingencies - Future Minimum Lease Payments Under Operating Lease Commitments (Detail) (USD $)	Jan. 31, 2014
In Thousands, unless otherwise specified	Jan. 31, 2014
Commitments And Contingencies Disclosure [Abstract]	'
2015	$3,382
2016	3,033
2017	929
2018	590
2019	475
Thereafter	1,070
Total	$9,479

Convertible_Preferred_Stock_Ad

Convertible Preferred Stock - Additional Information (Detail) (USD $)	Jan. 31, 2014	Jan. 31, 2013	Jul. 03, 2012	Jul. 03, 2012	Jan. 31, 2012
	Jan. 31, 2014	Jan. 31, 2013	Jul. 03, 2012	Convertible Preferred Stock [Member]	Convertible Preferred Stock [Member]
Convertible Preferred Stock [Line Items]	'	'	'	'	'
Convertible preferred stock, shares authorized	5,000,000	5,000,000	'	5,000,000	77,835,000
Convertible preferred stock par value	$0.00	$0.00	'	$0.00	$0.00
Preferred stock converted into common stock	'	'	8,529,366	'	'

Stockholders_Equity_Deficit_Ad

Stockholder's Equity (Deficit) - Additional Information (Detail) (USD $)	0 Months Ended				0 Months Ended
In Thousands, except Share data, unless otherwise specified	Jul. 03, 2012	Jun. 08, 2012	Jan. 31, 2014	Jan. 31, 2013	Jun. 08, 2012	Jul. 03, 2012	Jan. 31, 2012
	Jul. 03, 2012	Jun. 08, 2012	Jan. 31, 2014	Jan. 31, 2013	Reverse Stock Split [Member]	Initial Public Offering [Member]	Initial Public Offering [Member]
Stockholders Equity Note Disclosure [Line Items]	'	'	'	'	'	'	'
Common stock issued	'	'	'	'	'	4,166,667	'
Common stock issuance, per share	'	'	'	'	'	$10	'
Net proceeds from common stock issued	'	'	'	'	'	$34,576	'
Underwriting discounts and commissions	2,917	'	'	'	'	2,917	'
Common stock issued, offering expenses	'	'	'	'	'	4,157	'
Deferred offering expenses	'	'	'	'	'	'	$2,315
Preferred stock conversion rate	'	'	'	'	'	'Upon the closing of the initial public offering, each share of the Company's preferred stock was converted into two thirteenths of a share of the Company's common stock.	'
Common stock, reverse stock split	'	'1-for-6.5	'	'	'1-for 6.5	'	'
Common stock par value	'	'	$0.00	$0.00	$0.00	'	'

Stock_Based_Compensation_Addit

Stock Based Compensation - Additional Information (Detail) (USD $)	12 Months Ended						1 Months Ended
In Millions, except Share data, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2014	Jan. 31, 2012	Jan. 31, 2014	Sep. 30, 2013
	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012	Common Stock [Member]	Common Stock [Member]	Incentive Stock Option [Member]	Restricted Stock Units (RSUs) [Member]
Schedule Of Stock Options [Line Items]	'	'	'	'	'	'	'
Stock options exercise price as a percentage of fair market value	100.00%	'	'	'	'	110.00%	'
Stock options, duration	'	'	'	'	'	'5 years	'
Stock options, duration	'	'	'	'	'	'10 years	'
Stock options, expiration period	'10 years	'	'	'	'	'	'
Dividend yield	0.00%	0.00%	0.00%	'	'	'	'
Cashless exercise options exercised	4,170	'	'	'	'	'	'
Common stock options exercised	73,167	'	'	68,997	5,356	'	'
Restricted stock units granted	'	'	'	'	'	'	5,224
Total unrecognized compensation cost	$2.40	'	'	'	'	'	'
Weighted-average period	'2 years 8 months 12 days	'	'	'	'	'	'

Stock_Based_Compensation_Commo

Stock Based Compensation - Common and Preferred Stock Incentive Plans (Detail)	Jan. 31, 2014	Jan. 31, 2013
Schedule Of Stock Options [Line Items]	'	'
Outstanding	2,374,887	2,307,280
Preferred Stock [Member]	'	'
Schedule Of Stock Options [Line Items]	'	'
Authorized and Reserved	4,076,921	'
Outstanding	2,380,111	'
Available to Issue	480,979	'
Preferred Stock [Member] \| 1999 Series G Convertible Preferred Nonqualified Stock Option Plan [Member]	'	'
Schedule Of Stock Options [Line Items]	'	'
Authorized and Reserved	384,615	'
Outstanding	2,820	'
Preferred Stock [Member] \| 2005 Series G Convertible Preferred Stock Incentive Plan [Member]	'	'
Schedule Of Stock Options [Line Items]	'	'
Authorized and Reserved	1,846,153	'
Outstanding	1,278,627	'
Preferred Stock [Member] \| 2007 Stock Incentive Plan [Member]	'	'
Schedule Of Stock Options [Line Items]	'	'
Authorized and Reserved	1,076,923	'
Outstanding	810,788	'
Preferred Stock [Member] \| 2011 Stock Incentive Plan [Member]	'	'
Schedule Of Stock Options [Line Items]	'	'
Authorized and Reserved	769,230	'
Outstanding	287,876	'
Available to Issue	480,979	'

Stock_Based_Compensation_Commo1

Stock Based Compensation - Common and Preferred Stock Incentive Plans (Parenthetical) (Detail) (Restricted Stock Units (RSUs) [Member])	1 Months Ended
	Sep. 30, 2013
Restricted Stock Units (RSUs) [Member]	'
Schedule Of Stock Options [Line Items]	'
Restricted stock units granted	5,224

Stock_Based_Compensation_Fair_

Stock Based Compensation - Fair Value of Stock Option Awards (Detail)	12 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'	'	'
Expected life (years)	'6 years 3 months	'6 years 3 months	'6 years 5 months 23 days
Risk-free interest rate	2.21%	1.09%	2.11%
Expected volatility	50.60%	51.60%	56.70%
Expected dividend yield	0.00%	0.00%	0.00%

Stock_Based_Compensation_Chang

Stock Based Compensation - Changes in Common and Preferred Stock Options Issued (Detail) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Jan. 31, 2014
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Number of Options, Outstanding-beginning of period	2,307,280
Number of Options, Granted	184,728
Number of Options, Exercised	-73,167
Number of Options, Cancelled	-43,954
Number of Options, Outstanding-end of period	2,374,887
Number of Options, Exercisable-end of period	1,855,542
Number of Options, Vested or Expected to Vest-end of period	2,317,942
Weighted Average Exercise Price, Outstanding-beginning of period	$4.58
Weighted Average Exercise Price, Granted	$13.36
Weighted Average Exercise Price, Exercised	$3.46
Weighted Average Exercise Price, Cancelled	$10.49
Weighted Average Exercise Price, Outstanding-end of period	$5.19
Weighted Average Exercise Price, Exercisable-end of period	$3.30
Weighted Average Exercise Price, Vested or Expected to Vest-end of period	$5.02
Weighted Average Remaining Contractual Term (in years), Outstanding-end of period	'4 years 2 months 12 days
Weighted Average Remaining Contractual Term (in years), Exercisable-end of period	'3 years
Weighted Average Remaining Contractual Term (in Years), Vested or Expected to Vest-end of period	'4 years 1 month 6 days
Aggregate Intrinsic Value, Outstanding-end of period	$21,137
Aggregate Intrinsic Value, Exercisable-end of period	19,999
Aggregate Intrinsic Value, Vested or Expected to Vest-end of period	$21,009

Stock_Based_Compensation_Summa

Stock Based Compensation - Summarizes Information Relating to Stock Options Granted and Exercised (Detail) (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'	'	'
Weighted average fair value of options granted	$6.80	$5.39	$6.37
Aggregate intrinsic value of options exercised	$528	$287	$285

Stock_Based_Compensation_Stock

Stock Based Compensation - Stock-Based Compensation Expense (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Stock Based Compensation [Line Items]	'	'	'
Stock-based compensation expense	$1,210	$924	$636
Cost of Revenues [Member]	'	'	'
Stock Based Compensation [Line Items]	'	'	'
Stock-based compensation expense	137	111	79
Sales and Marketing [Member]	'	'	'
Stock Based Compensation [Line Items]	'	'	'
Stock-based compensation expense	239	190	119
Research and Development [Member]	'	'	'
Stock Based Compensation [Line Items]	'	'	'
Stock-based compensation expense	376	308	227
General and Administrative [Member]	'	'	'
Stock Based Compensation [Line Items]	'	'	'
Stock-based compensation expense	$458	$315	$211

Income_Taxes_Components_of_Los

Income Taxes - Components of (Loss) Income Before Income Taxes (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Jan. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2013	Oct. 31, 2012	Jul. 31, 2012	Apr. 30, 2012	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Income Tax Disclosure [Abstract]	'	'	'	'	'	'	'	'	'	'	'
United States	'	'	'	'	'	'	'	'	($3,068)	($355)	$2,797
Foreign	'	'	'	'	'	'	'	'	1,439	1,230	635
(Loss) income before income taxes	($278)	$644	($1,200)	($795)	($777)	$376	$1,249	$27	($1,629)	$875	$3,432

Income_Taxes_Reconciliation_of

Income Taxes - Reconciliation of Effective Tax Rate to US Federal Statutory Rate (Detail)	12 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Income Tax Disclosure [Abstract]	'	'	'
United States federal income tax rate	34.00%	34.00%	34.00%
State taxes, net of federal benefit	0.60%	2.60%	0.70%
Meals and entertainment	-1.60%	3.80%	0.60%
Stock compensation	-16.10%	26.40%	4.80%
Executive compensation	-5.10%	7.40%	2.90%
Non-deductible mark-to-market and interest adjustments	0.00%	-19.60%	2.30%
United States federal and state credits	30.60%	-60.20%	-15.20%
Change in valuation allowance	6.40%	17.70%	-355.80%
Foreign taxes and rate differential	21.70%	-17.80%	11.90%
Tax rate changes	-0.30%	-1.70%	1.20%
Expiration of tax attributes	-12.70%	21.00%	'
Other	-1.00%	-0.80%	0.70%
Total	56.50%	12.80%	-311.90%

Income_Taxes_Components_of_Def

Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail) (USD $)	Jan. 31, 2014	Jan. 31, 2013
In Thousands, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013
Deferred tax assets:	'	'
Net operating loss carryforwards	$9,282	$9,078
Business credit carryforwards	4,894	3,462
Accrued expenses	789	213
Stock compensation	318	208
Deferred revenue	15	109
Deferred rent	502	694
Other	71	24
Gross deferred tax assets	15,871	13,788
Valuation allowance	-305	-409
Total deferred tax assets	15,566	13,379
Deferred tax liabilities:	'	'
Depreciation	-177	-229
Other	-79	-11
Total deferred tax liabilities	-256	-240
Net deferred tax assets	$15,310	$13,139

Income_Taxes_Benefit_Provision

Income Taxes - Benefit (Provision) for Income Taxes (Detail) (USD $)

3 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Jan. 31, 2014

Oct. 31, 2013

Jul. 31, 2013

Apr. 30, 2013

Jan. 31, 2013

Oct. 31, 2012

Jul. 31, 2012

Apr. 30, 2012

Jan. 31, 2012

Jan. 31, 2014

Jan. 31, 2013

Jan. 31, 2012

Current:

Federal

($944)

($663)

($727)

State

-28

-9

-72

Foreign

-292

-86

-777

Total current

-1,264

-758

-1,576

Deferred:

Federal

1,908

812

-400

State

236

137

Foreign

108

-247

Change in valuation allowance

12,501

104

-155

12,501

Total deferred

2,184

646

12,282

Total benefit (provision) for income taxes

$392

($128)

$402

$254

$437

($217)

($367)

$35

$920

($112)

$10,706

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Jan. 31, 2012	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Income Tax Disclosure [Line Items]	'	'	'	'
Net deferred tax assets	'	$15,310	$13,139	'
Reduction in valuation allowance	12,501	104	-155	12,501
United States federal net operating loss carryforwards	'	27,118	'	'
State net operating loss carryforwards	'	1,195	'	'
Period of change in ownership	'	'3 years	'	'
Unrecognized tax benefits	2,407	2,167	2,259	2,407
Amount of interest and penalties related to uncertain tax positions	'	59	40	'
Income tax examination, description	'	'With limited exceptions, the Company is no longer subject to state or local examinations for years prior to January 31, 2009. However, carryforward attributes that were generated prior to January 31, 2010 may still be adjusted upon examination by federal, state or local tax authorities if they either have been or will be used in a future period.	'	'
Unremitted earnings of international subsidiaries	'	4,050	'	'
Federal [Member]	'	'	'	'
Income Tax Disclosure [Line Items]	'	'	'	'
Operating loss carryforwards, expiration dates	'	'2017	'	'
Tax credit carryforwards, expiration date	'	'Begin to expire in 2017	'	'
Federal tax credit carryforwards	'	4,145	'	'
State [Member]	'	'	'	'
Income Tax Disclosure [Line Items]	'	'	'	'
Tax credit carryforwards, expiration date	'	'Begin to expire in 2015	'	'
Stock Options [Member]	'	'	'	'
Income Tax Disclosure [Line Items]	'	'	'	'
Federal and state net operating losses carryforwards	'	115	'	'
Research and Development [Member]	'	'	'	'
Income Tax Disclosure [Line Items]	'	'	'	'
Tax credit carryforwards, expiration date	'	'Begin to expire in 2021	'	'
Research and development credit carryforwards, state	'	1,134	'	'
State Investment Tax Credits and R&D Credits [Member]	'	'	'	'
Income Tax Disclosure [Line Items]	'	'	'	'
Reduction in valuation allowance	'	'	$155	'
Minimum [Member]	'	'	'	'
Income Tax Disclosure [Line Items]	'	'	'	'
Threshold percentage for change in ownership	'	50.00%	'	'
Tax benefit	'	50.00%	'	'

Income_Taxes_Roll_Forward_of_U

Income Taxes - Roll Forward of Uncertainties in its Income Tax Provision Liability (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013
Income Tax Disclosure [Abstract]	'	'
Gross balance at February 1	$2,259	$2,407
Additions based on tax positions related to the current year	218	146
Reductions for tax positions of prior years	-310	-165
Gross balance at January 31	$2,167	$2,259

Net_Loss_Income_per_Share_Comp

Net (Loss) Income per Share - Computation of Basic and Diluted Net (Loss) Income per Common Share (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Share data, unless otherwise specified	Jan. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2013	Oct. 31, 2012	Jul. 31, 2012	Apr. 30, 2012	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Numerator:	'	'	'	'	'	'	'	'	'	'	'
Net (loss) income	$114	$516	($798)	($541)	($340)	$159	$882	$62	($709)	$763	$14,138
Denominator:	'	'	'	'	'	'	'	'	'	'	'
Weighted average common shares, basic	'	'	'	'	'	'	'	'	13,326,883	7,929,364	493,763
Dilutive effect of:	'	'	'	'	'	'	'	'	'	'	'
Options to purchase common stock	'	'	'	'	'	'	'	'	'	152,871	78,189
Options to purchase preferred stock	'	'	'	'	'	'	'	'	'	1,209,778	1,209,440
Warrants to purchase common stock	'	'	'	'	'	'	'	'	'	40,752	40,346
Convertible preferred stock	'	'	'	'	'	'	'	'	'	3,563,722	8,503,073
Weighted average common shares outstanding, fully diluted	'	'	'	'	'	'	'	'	13,326,883	12,896,487	10,324,811
Basic net (loss) income per share	$0.01	$0.04	($0.06)	($0.04)	($0.03)	$0.01	$0.20	$0.12	($0.05)	$0.10	$28.63
Diluted net (loss) income per share	$0.01	$0.04	($0.06)	($0.04)	($0.03)	$0.01	$0.70	$0.01	($0.05)	$0.06	$1.37

Net_Loss_Income_per_Share_Outs

Net (Loss) Income per Share - Outstanding Options and Warrants Excluded from Computation of Diluted Net (Loss) Income per Share (Detail)	12 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Earnings Per Share [Abstract]	'	'	'
Options, awards and warrants	2,401,649	630,909	574,789

Geographic_and_Segment_Informa2

Geographic and Segment Information - Additional Information (Detail)	12 Months Ended
	Jan. 31, 2014
	Segment
Segment Reporting [Abstract]	'
Number of operating segments	1

Geographic_and_Segment_Informa3

Geographic and Segment Information - Revenues by Geographic Location (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Jan. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2013	Oct. 31, 2012	Jul. 31, 2012	Apr. 30, 2012	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Revenue	$15,214	$14,108	$12,704	$12,488	$13,129	$12,612	$11,833	$11,294	$54,514	$48,868	$45,930
United States [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Revenue	'	'	'	'	'	'	'	'	12,202	11,182	10,409
Japan [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Revenue	'	'	'	'	'	'	'	'	8,810	10,024	9,937
Germany [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Revenue	'	'	'	'	'	'	'	'	10,287	7,925	5,959
France [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Revenue	'	'	'	'	'	'	'	'	9,424	7,358	8,866
Korea [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Revenue	'	'	'	'	'	'	'	'	4,684	4,196	3,865
United Kingdom [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Revenue	'	'	'	'	'	'	'	'	4,658	3,770	2,671
Sweden [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Revenue	'	'	'	'	'	'	'	'	2,046	2,206	2,170
Other [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Revenue	'	'	'	'	'	'	'	'	$2,403	$2,207	$2,053
Sales [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Percentage of Revenue	'	'	'	'	'	'	'	'	100.00%	100.00%	100.00%
Sales [Member] \| United States [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Percentage of Revenue	'	'	'	'	'	'	'	'	22.30%	22.90%	22.70%
Sales [Member] \| Japan [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Percentage of Revenue	'	'	'	'	'	'	'	'	16.20%	20.50%	21.60%
Sales [Member] \| Germany [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Percentage of Revenue	'	'	'	'	'	'	'	'	18.90%	16.20%	13.00%
Sales [Member] \| France [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Percentage of Revenue	'	'	'	'	'	'	'	'	17.30%	15.10%	19.30%
Sales [Member] \| Korea [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Percentage of Revenue	'	'	'	'	'	'	'	'	8.60%	8.60%	8.40%
Sales [Member] \| United Kingdom [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Percentage of Revenue	'	'	'	'	'	'	'	'	8.50%	7.70%	5.80%
Sales [Member] \| Sweden [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Percentage of Revenue	'	'	'	'	'	'	'	'	3.80%	4.50%	4.70%
Sales [Member] \| Other [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Percentage of Revenue	'	'	'	'	'	'	'	'	4.40%	4.50%	4.50%

Geographic_and_Segment_Informa4

Geographic and Segment Information - Net Long-Lived Assets by Principal Geographic Areas (Detail) (USD $)	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
In Thousands, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'
Property and equipment, net	$7,356	$6,176	$3,364
United States [Member]	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'
Property and equipment, net	6,098	4,678	3,080
France [Member]	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'
Property and equipment, net	849	1,068	62
Germany [Member]	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'
Property and equipment, net	117	144	79
Japan [Member]	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'
Property and equipment, net	201	204	123
Other [Member]	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'
Property and equipment, net	$91	$82	$20

Employee_Benefit_Plans_Additio

Employee Benefit Plans - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Employee benefit plan, matching contribution	$468	$498	$0
Foreign Defined Contribution Plans [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Employee benefit plan, matching contribution	$976	$826	$680

Quarterly_Results_of_Operation2

Quarterly Results of Operations - Operating Results for Interim Periods (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jan. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2013	Oct. 31, 2012	Jul. 31, 2012	Apr. 30, 2012	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Quarterly Financial Information Disclosure [Abstract]	'	'	'	'	'	'	'	'	'	'	'
License revenue	$12,047	$11,121	$10,719	$10,692	$10,606	$10,317	$10,215	$10,013	$44,579	$41,151	$38,754
Project revenue	3,167	2,987	1,985	1,796	2,523	2,295	1,618	1,281	9,935	7,717	7,176
Total revenues	15,214	14,108	12,704	12,488	13,129	12,612	11,833	11,294	54,514	48,868	45,930
Operating expenses:	'	'	'	'	'	'	'	'	'	'	'
Cost of revenues	4,432	4,023	3,833	3,671	4,175	3,644	3,112	3,223	15,959	14,154	12,075
Sales and marketing	3,004	2,243	2,179	2,117	2,277	1,529	1,709	1,600	9,543	7,115	6,233
Research and development	4,976	4,428	4,450	4,386	4,277	4,113	4,157	4,140	18,240	16,687	14,449
General and administrative	2,961	2,736	2,426	2,771	2,591	2,435	1,968	1,958	10,894	8,952	8,138
Total operating expenses	15,373	13,430	12,888	12,945	13,320	11,721	10,946	10,921	54,636	46,908	40,895
(Loss) income from operations	-159	678	-184	-457	-191	891	887	373	-122	1,960	5,035
Other (expense) income, net:	'	'	'	'	'	'	'	'	'	'	'
Foreign exchange gain (loss)	-58	31	-93	37	-194	-115	326	'	-83	17	-106
Interest expense, net	-64	-67	-171	-377	-408	-402	-409	-412	'	'	'
Other income (expense), net	3	2	-752	2	16	2	445	66	10	529	-213
Total other expense, net	-119	-34	-1,016	-338	-586	-515	362	-346	-1,507	-1,085	-1,603
(Loss) income before income taxes	-278	644	-1,200	-795	-777	376	1,249	27	-1,629	875	3,432
Benefit (provision) for income taxes	392	-128	402	254	437	-217	-367	35	920	-112	10,706
Net (loss) income	$114	$516	($798)	($541)	($340)	$159	$882	$62	($709)	$763	$14,138
Basic (loss) income per share	$0.01	$0.04	($0.06)	($0.04)	($0.03)	$0.01	$0.20	$0.12	($0.05)	$0.10	$28.63
Diluted (loss) income per share	$0.01	$0.04	($0.06)	($0.04)	($0.03)	$0.01	$0.70	$0.01	($0.05)	$0.06	$1.37

Valuation_and_Qualifying_Accou

Valuation and Qualifying Accounts (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Allowance for Doubtful Accounts [Member]	'	'	'
Valuation and Qualifying Accounts Disclosure [Line Items]	'	'	'
Amounts Charged (Credited) to Expense	$21	$9	'
Deductions From Allowance	-21	-9	'
Valuation Allowance of Deferred Tax Assets [Member]	'	'	'
Valuation and Qualifying Accounts Disclosure [Line Items]	'	'	'
Balance at Beginning of Period	409	254	12,915
Amounts Charged (Credited) to Expense	-104	155	-12,501
Deductions From Allowance	'	'	-160
Balance at End of Period	$305	$409	$254