Summary of Significant Accounting Policies	9 Months Ended
Sep. 30, 2011
Summary of Significant Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. Summary of Significant Accounting Policies Basis of Presentation The accompanying condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. These consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”). The accompanying condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the United States Securities and Exchange Commission (“SEC”) and the instructions to Form 10-Q and the provisions of Regulation S-X pertaining to interim financial statements. Accordingly, certain information and footnote disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. These condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and the notes thereto, included in the Company’s prospectus filed on August 11, 2011 with the SEC pursuant to Rule 424(b)(4) of the Securities Act of 1933. In the opinion of management, the condensed consolidated financial statements reflect all adjustments, consisting of normal recurring adjustments, necessary for a fair presentation of the Company’s financial position for the periods presented. The results for the periods presented are not necessarily indicative of future results. Use of Estimates The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Although the Company regularly assesses these estimates, actual results could differ materially from these estimates. 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 may differ from management’s estimates if past experience or other assumptions do not turn out to be substantially accurate, even if such assumptions are reasonable when made. Initial Public Offering In August 2011, the Company closed its initial public offering (“IPO”) of 7,187,500 shares of common stock, which were sold to the public at a price of $10.00 per share, including 937,500 shares of common stock sold pursuant to exercise of the underwriters’ option to purchase additional shares. The Company sold 6,303,973 shares of common stock and selling stockholders sold 883,527 shares of common stock. The Company received aggregate proceeds of $58.6 million from the IPO, net of underwriters’ discounts and commissions but before deducting offering expenses of $2.9 million. Upon the closing of the IPO, all shares of the Company’s outstanding convertible preferred stock converted into 13,483,473 shares of common stock and all outstanding warrants to purchase redeemable convertible preferred stock automatically converted into warrants to purchase 11,316 shares of common stock. Translation of Foreign Currencies The financial statements of the Company’s foreign subsidiary in China are translated into U.S. dollars. The functional currency of the Company’s foreign subsidiary is its local currency. The Company translates the assets and liabilities of its foreign subsidiary at the exchange rates in effect at period-end. Revenues and expenses are translated using average exchange rates in effect during the period. Gains and losses from foreign currency translation are recorded to accumulated other comprehensive income (loss) included in stockholders’ deficit. Concentration of Credit Risk Financial instruments that potentially subject the Company to credit risk primarily consist of cash and cash equivalents, short-term investments, and accounts receivable. The Company maintains its cash balances with high-quality financial institutions and, consequently, the Company believes that such funds are subject to minimal credit risk. Cash equivalents and short-term investments consist of investment grade debt securities or money market funds investing in such securities. The Company sells its services primarily to consumer and small business customers. Payment for the majority of the Company’s sales occurs via credit card. Due to these factors, no additional credit risk beyond amounts provided for collection losses is believed by management to be probable in the Company’s accounts receivable. For the periods presented, no customer represented 10% or more of accounts receivable or revenue. Revenue Recognition The Company derives revenue from online backup subscription services. These services are standalone independent service solutions, which are generally contracted for a one- to three-year term. Subscription arrangements include access to use the Company’s software via the internet. The Company recognizes revenue in accordance with the Financial Accounting Standards Codification (ASC) 605-10, Overall Revenue Recognition. Subscription revenue is recognized ratably on a daily basis over the subscription period, when persuasive evidence of an arrangement with a customer exists, the subscription has been activated, the price is fixed or determinable, and collection is reasonably assured. Deferred revenues represent payments received from customers for subscription services prior to recognizing the revenue related to those payments. Goodwill and Acquired Intangible Assets The Company records goodwill when consideration paid in a business acquisition exceeds the fair value of the net tangible assets and the identified intangible assets acquired. Goodwill is not amortized, but rather is tested for impairment annually or more frequently if facts and circumstances warrant a review. The Company performs its annual assessment for impairment of goodwill on November 30 and has determined that there is a single reporting unit for the purpose of conducting this annual goodwill impairment assessment. For purposes of assessing potential impairment, the Company annually estimates the fair value of the reporting unit (based on the Company’s market capitalization) and compares this amount to the carrying value of the reporting unit (as reflected by the Company’s total stockholders’ equity). If the Company determines that the carrying value of the reporting unit exceeds its fair value, an impairment charge would be recorded. Intangible assets acquired in a business combination are recorded under the acquisition method of accounting at their estimated fair values at the date of acquisition. As the pattern of consumption of the economic benefits of the intangible assets cannot be reliably determined, the Company amortizes acquired intangible assets over their estimated useful lives on a straight-line basis. Research and Development Costs Research and development costs are expensed as incurred. The Company follows the guidance of ASC 350-40, Internal Use Software and ASC 350-50, Website Development Costs, in accounting for its software and website development costs. The costs incurred in the preliminary stages of development are expensed as incurred. Once an application has reached the development stage, internal and external costs, if direct and incremental, are capitalized until the application is substantially complete and ready for its intended use. The Company has determined that technological feasibility is established at the time that a scalable working model of the application is complete. Because the Company believes its current process for developing applications is essentially completed concurrent with the establishment of technological feasibility, no costs have been capitalized to date. These costs are included in the accompanying statements of operations as research and development expense. Income Taxes The Company provides for income taxes under the liability method. Deferred tax assets and liabilities are determined based on differences between financial reporting and tax bases of assets and liabilities and are measured using the enacted tax rates in effect when the differences are expected to reverse. Deferred tax assets are reduced by a valuation allowance to reflect the uncertainty associated with their ultimate realization. The Company accounts for uncertain tax positions recognized in the consolidated financial statements by prescribing a more-likely-than-not threshold for financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. Accounting for Stock-Based Compensation Stock-based compensation is recognized as an expense in the financial statements based on the grant date fair value. Compensation expense recognized relates to stock awards, restricted stock and stock options granted, modified, repurchased, or cancelled on or after January 1, 2006. For awards that vest based on service conditions, the Company uses the straight-line method to allocate compensation expense to reporting periods over the requisite service period. The grant date fair value of options granted is calculated using the Black-Scholes option-pricing model, which requires the use of subjective assumptions including volatility, expected term and the fair value of the underlying common stock, among others. Recently Issued and Adopted Accounting Standards In June 2011, the FASB issued new accounting guidance on the presentation of comprehensive income to provide companies with two options for presenting comprehensive income. Companies can present the total of comprehensive income, the components of net income, and the components of other comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements. This guidance eliminates the option to present the components of other comprehensive income as part of the statement of changes in stockholders’ equity. This guidance will be effective for the Company on January 1, 2012. As the new guidance relates only to how comprehensive income is disclosed and does not change the items that must be reported as comprehensive income. The Company does not believe that the adoption of this standard will have a material impact on the Company’s financial position or results of operations. In September 2011, the FASB issued ASU No. 2011-08, Testing Goodwill for Impairment (the revised standard). The revised standard is intended to reduce the cost and complexity of the annual goodwill impairment test by providing entities an option to perform a “qualitative” assessment to determine whether further impairment testing is necessary. The revised standard will be effective for the Company on January 1, 2012. The Company does not believe that the adoption of this amendment will have a material impact on the Company’s financial position or results of operations.

2. Summary of Significant Accounting Policies

Basis of Presentation

The accompanying condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. These consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”).

The accompanying condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the United States Securities and Exchange Commission (“SEC”) and the instructions to Form 10-Q and the provisions of Regulation S-X pertaining to interim financial statements. Accordingly, certain information and footnote disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. These condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and the notes thereto, included in the Company’s prospectus filed on August 11, 2011 with the SEC pursuant to Rule 424(b)(4) of the Securities Act of 1933.

In the opinion of management, the condensed consolidated financial statements reflect all adjustments, consisting of normal recurring adjustments, necessary for a fair presentation of the Company’s financial position for the periods presented. The results for the periods presented are not necessarily indicative of future results.

Use of Estimates

The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Although the Company regularly assesses these estimates, actual results could differ materially from these estimates. 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 may differ from management’s estimates if past experience or other assumptions do not turn out to be substantially accurate, even if such assumptions are reasonable when made.

Initial Public Offering

In August 2011, the Company closed its initial public offering (“IPO”) of 7,187,500 shares of common stock, which were sold to the public at a price of $10.00 per share, including 937,500 shares of common stock sold pursuant to exercise of the underwriters’ option to purchase additional shares. The Company sold 6,303,973 shares of common stock and selling stockholders sold 883,527 shares of common stock. The Company received aggregate proceeds of $58.6 million from the IPO, net of underwriters’ discounts and commissions but before deducting offering expenses of $2.9 million. Upon the closing of the IPO, all shares of the Company’s outstanding convertible preferred stock converted into 13,483,473 shares of common stock and all outstanding warrants to purchase redeemable convertible preferred stock automatically converted into warrants to purchase 11,316 shares of common stock.

Translation of Foreign Currencies

The financial statements of the Company’s foreign subsidiary in China are translated into U.S. dollars. The functional currency of the Company’s foreign subsidiary is its local currency. The Company translates the assets and liabilities of its foreign subsidiary at the exchange rates in effect at period-end. Revenues and expenses are translated using average exchange rates in effect during the period. Gains and losses from foreign currency translation are recorded to accumulated other comprehensive income (loss) included in stockholders’ deficit.

Concentration of Credit Risk

Financial instruments that potentially subject the Company to credit risk primarily consist of cash and cash equivalents, short-term investments, and accounts receivable. The Company maintains its cash balances with high-quality financial institutions and, consequently, the Company believes that such funds are subject to minimal credit risk. Cash equivalents and short-term investments consist of investment grade debt securities or money market funds investing in such securities.

The Company sells its services primarily to consumer and small business customers. Payment for the majority of the Company’s sales occurs via credit card. Due to these factors, no additional credit risk beyond amounts provided for collection losses is believed by management to be probable in the Company’s accounts receivable. For the periods presented, no customer represented 10% or more of accounts receivable or revenue.

Revenue Recognition

The Company derives revenue from online backup subscription services. These services are standalone independent service solutions, which are generally contracted for a one- to three-year term. Subscription arrangements include access to use the Company’s software via the internet. The Company recognizes revenue in accordance with the Financial Accounting Standards Codification (ASC) 605-10, Overall Revenue Recognition. Subscription revenue is recognized ratably on a daily basis over the subscription period, when persuasive evidence of an arrangement with a customer exists, the subscription has been activated, the price is fixed or determinable, and collection is reasonably assured. Deferred revenues represent payments received from customers for subscription services prior to recognizing the revenue related to those payments.

Goodwill and Acquired Intangible Assets

The Company records goodwill when consideration paid in a business acquisition exceeds the fair value of the net tangible assets and the identified intangible assets acquired. Goodwill is not amortized, but rather is tested for impairment annually or more frequently if facts and circumstances warrant a review. The Company performs its annual assessment for impairment of goodwill on November 30 and has determined that there is a single reporting unit for the purpose of conducting this annual goodwill impairment assessment. For purposes of assessing potential impairment, the Company annually estimates the fair value of the reporting unit (based on the Company’s market capitalization) and compares this amount to the carrying value of the reporting unit (as reflected by the Company’s total stockholders’ equity). If the Company determines that the carrying value of the reporting unit exceeds its fair value, an impairment charge would be recorded.

Intangible assets acquired in a business combination are recorded under the acquisition method of accounting at their estimated fair values at the date of acquisition. As the pattern of consumption of the economic benefits of the intangible assets cannot be reliably determined, the Company amortizes acquired intangible assets over their estimated useful lives on a straight-line basis.

Research and Development Costs

Research and development costs are expensed as incurred.

The Company follows the guidance of ASC 350-40, Internal Use Software and ASC 350-50, Website Development Costs, in accounting for its software and website development costs. The costs incurred in the preliminary stages of development are expensed as incurred. Once an application has reached the development stage, internal and external costs, if direct and incremental, are capitalized until the application is substantially complete and ready for its intended use. The Company has determined that technological feasibility is established at the time that a scalable working model of the application is complete. Because the Company believes its current process for developing applications is essentially completed concurrent with the establishment of technological feasibility, no costs have been capitalized to date. These costs are included in the accompanying statements of operations as research and development expense.

Income Taxes

The Company provides for income taxes under the liability method. Deferred tax assets and liabilities are determined based on differences between financial reporting and tax bases of assets and liabilities and are measured using the enacted tax rates in effect when the differences are expected to reverse. Deferred tax assets are reduced by a valuation allowance to reflect the uncertainty associated with their ultimate realization.

The Company accounts for uncertain tax positions recognized in the consolidated financial statements by prescribing a more-likely-than-not threshold for financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return.

Accounting for Stock-Based Compensation

Stock-based compensation is recognized as an expense in the financial statements based on the grant date fair value. Compensation expense recognized relates to stock awards, restricted stock and stock options granted, modified, repurchased, or cancelled on or after January 1, 2006. For awards that vest based on service conditions, the Company uses the straight-line method to allocate compensation expense to reporting periods over the requisite service period. The grant date fair value of options granted is calculated using the Black-Scholes option-pricing model, which requires the use of subjective assumptions including volatility, expected term and the fair value of the underlying common stock, among others.