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DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)
12 Months Ended
Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Basis of Presentation and Consolidation
Basis of Presentation and Consolidation
The Company prepared the accompanying consolidated financial statements in accordance with generally accepted accounting principles in the United States ("GAAP"), which includes the accounts of Aerohive Networks, Inc. and its wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.
Consolidation, Policy [Policy Text Block]
Basis of Presentation and Consolidation
The Company prepared the accompanying consolidated financial statements in accordance with generally accepted accounting principles in the United States ("GAAP"), which includes the accounts of Aerohive Networks, Inc. and its wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.
Use of Estimates
Use of Estimates
The preparation of the accompanying consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Those estimates and assumptions include, among others, the selling price of product, software and support services, determination of fair value of common stock, preferred stock, preferred stock warrant liabilities, and stock-based awards, inventory valuations, accounting for income taxes, including the valuation reserve on deferred tax assets and uncertain tax positions, allowance for sales reserves, allowance for doubtful accounts, and warranty costs. Management evaluates estimates and assumptions on an ongoing basis using historical experience and other factors and adjusts those estimates and assumptions when facts and circumstances dictate. As future events and their effects cannot be determined with precision, actual results could differ from these estimates and assumptions, and those differences could be material to the consolidated financial statements
Foreign Currency
Foreign Currency
The functional currency of the Company’s foreign subsidiaries is the U.S. dollar. Transactions denominated in currencies other than the functional currency are remeasured at the average exchange rate in effect during the period. At the end of each reporting period, the Company’s subsidiaries’ monetary assets and liabilities are remeasured to the U.S. dollar using exchange rates in effect at the end of the reporting period. Non-monetary assets and liabilities are remeasured at historical exchange rates. Gains and losses related to remeasurement are recorded in other income (expense), net in the consolidated statements of operations. Foreign currency exchange losses have not been significant in any period presented and the Company has not undertaken any hedging transactions related to foreign currency exposure.
Concentrations of Credit Risk and Significant Customers
Concentrations of Credit Risk and Significant Customers
Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash and cash equivalents and accounts receivable. Cash equivalents are maintained in money market funds. The amount on deposit at any time with money market funds may exceed the insured limits provided on such funds.
The Company sells its products primarily to channel partners, which include value-added resellers, or VARs, and value-added distributors, or VADs. The Company’s accounts receivable are typically unsecured and are derived from revenue earned from customers located in the Americas, Europe, the Middle East and Africa, and Asia Pacific. Sales to foreign customers accounted for 38%, 40% and 39% of total revenue for the year ended December 31, 2015, 2014 and 2013, respectively. The Company performs ongoing credit evaluations to determine customer credit, but generally does not require collateral from its customers. The Company maintains reserves for estimated credit losses and these losses have historically been within management’s expectations. 
Significant customers are those that represent more than 10% of the Company’s total revenue or gross accounts receivable balance at each respective balance sheet date.
Fair Value Measurements
Fair Value Measurements
The Company’s financial instruments consist of cash and cash equivalents, short-term investments, accounts receivable, accounts payable, accrued liabilities and long-term debt. Accounts receivable, accounts payable and accrued liabilities are stated at their carrying value, which approximates fair value due to the short time to the expected receipt or payment. The carrying amount of the Company’s long-term debt approximates its fair value as the stated interest rate approximates market rates currently available to the Company. As of December 31, 2015, the Company has not elected the fair value option for any financial assets and liabilities for which such an election would have been permitted.
Cash Equivalents
Cash Equivalents
The Company considers all highly liquid investments with maturities of three months or less when purchased to be cash equivalents. Cash and cash equivalents consist of cash on hand and highly liquid investments in money market funds, including overnight investments. Due to the short-term nature and liquidity of these financial instruments, the carrying value of these assets approximates fair value.
Allowance for Doubtful Accounts
Allowance for Doubtful Accounts
Accounts receivable are recorded at invoiced amounts, net of allowances for doubtful accounts, if applicable, and do not accrue interest. The Company evaluates the collectability of its accounts receivable based on known collection risks and historical experience. In circumstances where the Company is aware of a specific customer’s inability to meet its financial obligations (e.g., bankruptcy filings or substantial downgrading of credit ratings), the Company records a specific reserve for bad debts against amounts due to reduce the net recognized receivable to the amount the Company reasonably believes will be collected. For all other customers, the Company records reserves for bad debts based on the length of time the receivables are past due and the Company’s historical experience of collections and write-offs. If circumstances change, such as higher-than-expected defaults or an unexpected material adverse change in a major customer’s ability to meet its financial obligations, the Company may reduce the estimate of the recoverability of the amounts due, potentially by a significant amount.
Inventory
Inventory
Inventory consists of hardware products and related component parts and is stated at the lower of cost, which approximates actual cost computed on a first-in, first-out basis, or market value. The Company evaluates inventory for excess and obsolete products, based on management’s assessment of future demand and market conditions, and technological obsolescence of its products. Inventory write-downs, once established, are not reversed as they establish a new cost basis for the inventory. Inventory write-downs are included as a component of cost of product revenue in the accompanying consolidated statements of operations. For the year ended December 31, 2015, 2014 and 2013, the provisions for excess and obsolete inventories were $0.7 million, $0.3 million and $0.1 million, respectively. The Company uses contract manufacturers to provide manufacturing services for its products.
Software Development Costs
Software Development Costs
The costs to develop the Company’s perpetual license software offerings have not been capitalized because the Company’s current software development process is essentially completed concurrent with the establishment of technological feasibility. As such, all related software development costs are expensed as incurred and included in research and development expenses in the consolidated statements of operations.
Research and development costs incurred during the preliminary project stage related to the Company’s cloud-managed networking platform are expensed as incurred. Capitalization begins when the preliminary project stage is complete, management with the relevant authority authorizes and commits to the funding of the software project, and it is probable the project will be completed. Capitalization ceases when the project is substantially complete and ready for its intended purpose. The Company amortizes the capitalized costs on a straight-line basis over the estimated useful life, generally three to five years.
Property and Equipment, net
Property and Equipment, net
Property and equipment, including computer and other equipment, laboratory and research and development equipment, purchased software, internal-use software, office furniture and equipment, and construction in progress, are stated at cost, less accumulated depreciation and amortization. Depreciation is computed using the straight-line method over the estimated useful lives of the related assets. Leasehold improvements are amortized on a straight-line basis over the shorter of the estimated useful lives of the assets or the remaining lease term. Depreciation on property and equipment ranges from two to five years.
Leasehold improvements are amortized on a straight-line basis over the shorter of the estimated useful lives of the assets or the remaining lease term. The amortization period for the leasehold improvements primarily ranges from two to five years.
Goodwill
Goodwill
Goodwill represents the excess purchase consideration of an acquired entity over the fair value of the net tangible and intangible assets acquired.
The Company has determined that it operates as one reporting unit and performs its annual impairment test of goodwill during the fourth quarter of each fiscal year or whenever events or circumstances change that would indicate that goodwill might be impaired. Triggering events that may indicate impairment include, but are not limited to, a significant adverse change in the business climate, unanticipated competition, loss of key personnel, significant changes in the manner the Company uses the acquired assets or the strategy for the overall business, significant negative industry or economic trends or significant underperformance relative to historical operations or projected future results of operations.
In conducting the impairment test, the Company first assesses qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test. If the qualitative step is not passed, the Company performs a two-step impairment test whereby in the first step, the Company must compare the fair value of the reporting unit with its carrying amount. If the carrying amount exceeds its fair value, the Company performs the second step of the goodwill impairment test to determine the amount of impairment. The second step, measuring the impairment loss, compares the implied fair value of the goodwill with the carrying value of the goodwill. Any excess of the goodwill carrying value over the implied fair value is recognized as an impairment loss.
Impairment of Long-Lived Assets
Impairment of Long-Lived Assets
The carrying amounts of long-lived assets, including property and equipment and intangible assets subject to depreciation and amortization, are periodically reviewed for impairment whenever events or changes in circumstances indicate that the carrying value of these assets may not be recoverable or that the useful life is shorter than the Company had originally estimated. Recoverability of these assets is measured by comparison of the carrying amount of each asset to the future undiscounted cash flows the asset is expected to generate over their remaining lives. If the asset is considered to be impaired, the amount of any impairment is measured as the difference between the carrying value and the fair value of the impaired asset. If the useful life is shorter than originally estimated, the Company amortizes the remaining carrying value over the new shorter useful life.
Convertible Preferred Stock Warrant Liability
Convertible Preferred Stock Warrant Liability
The Company accounts for freestanding warrants to purchase shares of convertible preferred stock as liabilities in the consolidated balance sheets at their estimated fair value because the preferred shares underlying the warrants contain anti-dilution provisions that require the Company to increase the number of common shares into which the preferred shares are convertible upon any future down-round financing. At the end of each reporting period, changes in the estimated fair value of the warrants to purchase shares of convertible preferred stock are recorded in other income (expense), net in the consolidated statements of operations. Changes in estimated fair value of convertible preferred stock warrant liability was immaterial for the year ended December 31, 2014 and was $2.2 million for the year ended December 31, 2013. The Company adjusted the liability for changes in fair value until the completion of the IPO in April 2014. Upon conversion of the underlying preferred stock to common stock, the related warrant liability was remeasured to fair value and the remaining liability was reclassified to additional paid-in capital.
Revenue Recognition
Revenue Recognition
The Company derives revenue from two sources: (i) product, which includes hardware and software revenue, and (ii) software subscription and services, which includes post-contract customer support, or PCS, and software delivered as a service, or SaaS. Revenue is recognized when all of the following criteria are met.
Persuasive Evidence of an Arrangement Exists.  Evidence of an arrangement generally consists of a purchase order issued pursuant to the terms and conditions of a VAD and VAR reseller agreement or, in limited cases, an end-customer agreement.
Delivery or Performance has Occurred.  The Company uses shipping and related documents and VAD sell-through reports to verify delivery or performance. The Company does not recognize product revenue until transfer of title and risk of loss, which generally is upon shipment to VARs or end-customers.
The Sales Price is Fixed or Determinable.  The Company assesses whether the sales price is fixed or determinable based on payment terms and whether the sales price is subject to refund or adjustment.
Collection is Reasonably Assured.  The Company assesses probability of collection on a channel partner-by-channel partner basis. The Company subjects its channel partners to a credit review process that evaluates their financial condition and ability to pay for the Company’s products and services. If the Company concludes that collection is not reasonably assured, the Company does not recognize revenue until cash is received.
The Company’s product revenue consists of revenue from the sale of the Company’s hardware products (which each contain embedded software related to its proprietary operating system) and HiveManager network management software which is considered essential to the functionality of the Company’s hardware products. Therefore, the Company’s hardware appliances together with related HiveManager software are considered non-software elements and are not subject to the industry-specific software revenue recognition guidance.
The Company’s software subscription and services revenue consists of revenue from SaaS and PCS arrangements. SaaS arrangements with customers do not provide the right to take possession of the software at any time during the hosting period, have a defined contract term, and are recognized ratably over the contract term beginning on the provisioning date of the contract, which is typically one, three or five years. The Company has determined that hardware sold with SaaS arrangements has stand-alone value and therefore has concluded that the hardware represents a separate unit of accounting that is recognized as revenue upon shipment assuming all other revenue recognition criteria are met. PCS arrangements include software updates, access to technical support personnel, and expedited replacement of defective hardware products. Revenue for PCS services is recognized on a straight-line basis over the service contract term, which is typically one, three or five years.
The Company operates a multiple-tier channel distribution model that includes VADs, VARs and direct sales to end-customers (including managed service providers). For sales to VARs and end-customers, the Company recognizes product revenue upon transfer of title and risk of loss, which is generally upon shipment. It is the Company’s practice to identify an end-customer prior to shipment to a VAR. Substantially all of the Company’s sales outside of North America are made through VADs under agreements, which currently allow the VADs to stock of the Company’s products in their inventory and provide price protection or rebates, and limited rights of return for stock rotation. The Company initially defers product revenue on sales made through these VADs and recognizes revenue upon sell-through as the VADs report to the Company.
Most of the Company’s arrangements, other than stand-alone renewals of SaaS and PCS arrangements, are multiple-element arrangements with a combination of product and service (as defined above). The Company allocates arrangement consideration in multiple-element revenue arrangements at the inception of an arrangement to all deliverables based on the relative selling price method in accordance with the selling price hierarchy, which includes (i) vendor-specific objective evidence (VSOE) of selling price, if available; (ii) third-party evidence (TPE) of selling price, if VSOE is not available; and (iii) best estimate of selling price (BESP), if neither VSOE nor TPE is available.
VSOE. The Company determines VSOE based on its historical pricing and discounting practices for the specific products and services when sold separately. In determining VSOE, the Company requires that a substantial majority of the stand-alone selling prices fall within a reasonably narrow pricing range. The Company established VSOE for some of its sales of PCS for both VAD and VAR channels as our pricing is sufficiently concentrated (based on an analysis of separate sales of PCS) to conclude that we can demonstrate VSOE of selling price of PCS.
TPE. When VSOE cannot be established for deliverables in multiple-element arrangements, the Company applies judgment with respect to whether it can establish a selling price based on TPE. TPE is determined based on competitor prices for interchangeable products or services when sold separately to similarly situated customers. However, because the Company’s products contain a significant element of proprietary technology and the Company’s solutions offer substantially different features and functionality, the comparable pricing of products with similar functionality typically cannot be obtained.
BESP. When the Company is unable to establish selling price using VSOE or TPE, the Company uses BESP in its allocation of arrangement consideration. The objective of BESP is to determine the price at which the Company would transact a sale if the product or service was sold regularly on a stand-alone basis. As the Company has not been able to establish VSOE or TPE for its products and some of its services, the Company determines BESP for the purposes of allocating the arrangement, primarily based on historical transaction pricing. Historical transactions are segregated based on the Company’s pricing model and go-to-market strategy, which include factors such as type of sales channel (VAR, VAD or end-customer), the geographies in which the Company’s products and services were sold (domestic or international) and offering type (product series, software subscriptions and level of support for PCS). The determination of BESP is made through consultation with and approval by management.
The Company makes certain estimates and maintains allowances for sales returns and other programs based on its historical experience. To date, these estimates have not been significant.
Shipping charges billed to channel partners are included in product revenue and the related shipping costs are included in cost of product revenue.
Deferred Costs of Goods Sold
Deferred Costs of Goods Sold
When the Company’s products have been delivered, but the product revenue associated with the arrangement has been deferred as a result of not meeting the revenue recognition criteria (see “Revenue Recognition” above), the related product costs are also deferred.
Warranty Liability
Warranty Liability
The Company maintains a warranty accrual for estimated future warranty obligations based on unit volumes by hardware product family together with anticipated future warranty costs. The Company’s Wi-Fi access points, branch routers and switches are generally covered by a limited lifetime warranty, and other hardware accessory products are generally covered for a period of one year.
Advertising Costs
Advertising Costs
Advertising costs are charged to sales and marketing expenses as incurred in the consolidated statements of operations.
Research and Development Expense
Research and Development Expenses
Research and development costs, other than capitalized software development costs, are charged to operations as incurred and consist primarily of personnel costs (including compensation costs and stock-based compensation), outside services, expensed materials, depreciation and an allocation of overhead expenses (including facilities and information technology infrastructure costs), as well as software development costs incurred prior to the establishment of technological feasibility, such as product certification, travel, depreciation and recruiting.
Stock-Based Compensation
Stock-Based Compensation
The Company measures compensation expense for all stock-based awards based on the estimated fair values on the date of grant. The Company’s stock-based awards include stock options, restricted stock units (RSU) and purchase rights under the employee stock purchase plan (ESPP). The fair value of each RSU granted is determined using the fair value of the Company’s common stock on the date of the grant. The fair value of each stock option is estimated using the Black-Scholes option pricing model. The fair value of each stock purchase right under the Company's ESPP is calculated based on the closing price of the Company's stock on the date of grant and the value of a call and put option estimated using the Black-Scholes pricing model. The Black-Scholes pricing model requires assumptions including the market value of the Company's common stock, expected term of the award, expected volatility of the price of the Company's common stock, risk-free interest rates, and expected dividend yield.
Stock-based compensation is recognized on a straight-line basis over the requisite service period, net of estimated forfeitures. The forfeiture rate is based on an analysis of the Company’s actual historical forfeitures.
Income Taxes
Income Taxes
The Company accounts for income taxes under an asset and liability approach for deferred income taxes, which require recognition of deferred income tax assets and liabilities for the expected future tax consequences of events that have been recognized in the consolidated financial statements, but have not been reflected in taxable income. Estimates and judgments occur in the calculation of certain tax liabilities and in the determination of the recoverability of certain deferred income tax assets, which arise from temporary differences and carryforwards. Deferred income tax assets and liabilities are measured using the currently enacted tax rates that apply to taxable income in effect for the years in which those tax assets are expected to be realized or settled. The Company regularly assesses the likelihood that deferred income tax assets will be realized based on historical levels of taxable income, projections for future taxable income, and tax planning strategies. To the extent that the Company believes any amounts are not more likely than not to be realized, the Company records a valuation allowance to reduce the deferred income tax assets. The Company regularly assesses the need for a valuation allowance on its deferred tax assets, and to the extent that the Company determines that an adjustment is needed, such adjustment will be recorded in the period that the determination is made.
The Company regularly reviews its tax positions and benefits to be realized. The Company recognizes tax liabilities based upon estimates of whether, and the extent to which, additional taxes will be due when such estimates are more likely than not to be sustained. An uncertain income tax position will not be recognized if it has less than a 50% likelihood of being sustained. The Company recognizes interest and penalties related to income tax matters as income tax expense in the accompanying consolidated statements of operations.
Recent Accounting Pronouncements
Recent Accounting Pronouncements