| Basis of Presentation and Summary of Significant Accounting Policies (Policies) | 6 Months Ended |
| Jun. 30, 2017 |
| Accounting Policies [Abstract] | |
| Basis of Presentation | Basis of Presentation The unaudited consolidated financial statements in this Quarterly Report on Form 10-Q have been prepared in accordance with generally accepted accounting principles (“U.S. GAAP” or "GAAP") for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, these unaudited consolidated financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments, consisting of normal recurring adjustments, considered necessary for a fair presentation have been included. Operating results for the three and six months ended June 30, 2017 are not necessarily indicative of the results that may be expected for the full year ending December 31, 2017 , or for any other subsequent interim period. The unaudited consolidated financial statements in this Quarterly Report on Form 10-Q should be read in conjunction with the Company’s consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016 . |
| Reclassification of Prior Period Balance | Reclassification of Prior Period Balances Certain reclassifications have been made to prior period amounts to conform to the current period financial statement presentation including the reclassification of capitalized internal-use software costs from property and equipment to other intangible assets for the year ended December 31, 2016 upon adoption of Accounting Standards Update ("ASU") 2016-19, Technical Corrections and Improvements . |
| Use of Estimates in Preparation of Financial Statements | Use of Estimates in Preparation of Financial Statements The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions in the application of certain of its significant accounting policies that may materially affect the reported amounts of assets, liabilities, equity, revenue and expenses. The most significant estimates used in these financial statements include the valuation of stock-based compensation expense; the fair value of intangible assets acquired in businesses combinations; the valuation of inventory; the fair value of reporting units used to calculate the potential impairment of goodwill; the valuation of deferred revenue; the calculation of gains and losses, if any, on the retirement or conversion of convertible debt; the estimated useful lives of property and equipment and intangible assets; the amount of internal use software development costs that qualify for capitalization; the estimated amount, if any, of accrued contingent liabilities as well as warranty and doubtful accounts allowance reserve calculations. Actual results may differ from those estimates. |
| Principles of Consolidation | Principles of Consolidation The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. |
| Foreign Currency Translation | Foreign Currency Translation For foreign operations, asset and liability accounts are translated at exchange rates as of the balance sheet date; income and expenses are translated using weighted average exchange rates for the reporting period. Resulting translation adjustments are reported in accumulated other comprehensive loss, a separate component of stockholders' equity. Gains and losses arising from transactions and revaluation of period-end balances denominated in currencies other than the local entity's functional currency are included in other income (expense), net, and were not material in the three and six months ended June 30, 2017 and 2016 . Exposure to gains and losses from such transactions and revaluations are primarily related to Canadian dollar exchange rate fluctuations. |
| Cash and Cash Equivalents | Cash and Cash Equivalents For the purpose of the financial statement classification, the Company considers all highly-liquid investment instruments with original maturities of 90 days or less, when purchased, to be cash equivalents. Cash equivalents include money market mutual funds, corporate bonds, U.S. government and agency bonds and certificates of deposit which are carried at cost which approximates their fair value. |
| Short-term Investments | Short-term Investments Short-term investment securities consist of available-for-sale marketable securities and are carried at fair value with unrealized gains or losses included as a component of other comprehensive loss in stockholders' equity. Investments, exclusive of cash equivalents, with a stated maturity date of one year or less from the balance sheet date or that are expected to be used in current operations, are classified as short-term investments. Short-term investments include U.S. government and agency bonds, corporate bonds, and certificates of deposit. The Company reviews investments for other-than-temporary impairment when the fair value of an investment is less than its amortized cost. If an available-for-sale security is other than temporarily impaired, the loss is charged to earnings. |
| Property and Equipment | Property and Equipment Property and equipment is stated at cost and depreciated using the straight-line method over the estimated useful life of the respective assets. Leasehold improvements are amortized over their useful life or the life of the lease, whichever is shorter. Assets acquired under capital leases are amortized in accordance with the respective class of owned assets and the amortization is included with depreciation expense. Maintenance and repair costs are expensed as incurred. |
| Business Combinations | Business Combinations The Company recognizes the assets and liabilities assumed in business combinations on the basis of their fair values at the date of acquisition. The Company assesses the fair value of assets, including intangible assets, using a variety of methods and each asset is measured at fair value from the perspective of a market participant. The method used to estimate the fair values of intangible assets incorporates significant assumptions regarding the estimates a market participant would make in order to evaluate an asset, including a market participant’s use of the asset and the appropriate discount rates for a market participant. Assets recorded from the perspective of a market participant that are determined to not have economic use for the Company are expensed immediately. Any excess purchase price over the fair value of the net tangible and intangible assets acquired is allocated to goodwill. Transaction costs and restructuring costs associated with a business combination are expensed as incurred. |
| Segment Reporting | Segment Reporting Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated on a regular basis by the chief operating decision-maker ("CODM") in deciding how to allocate resources to an individual segment and in assessing performance of the segment. The Company has concluded that its Chief Executive Officer is the CODM as he is the ultimate decision maker for key operating decisions, determining the allocation of resources and assessing the financial performance of the Company. These decisions, allocations and assessments are performed by the CODM using consolidated financial information. Consolidated financial information is utilized by the CODM as the Company’s current product offering primarily consists of drug delivery and the Omnipod System. The Company’s products are relatively consistent and manufacturing is centralized and consistent across product offerings. Based on these factors, key operating decisions and resource allocations are made by the CODM using consolidated financial data and as such the Company has concluded that it operates as one segment. Segment Reporting Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated on a regular basis by the CODM in deciding how to allocate resources to an individual segment and in assessing performance of the segment. The Company has concluded that its Chief Executive Officer is the CODM as he is the ultimate decision maker for key operating decisions, determining the allocation of resources and assessing the financial performance of the Company. These decisions, allocations and assessments are performed by the CODM using consolidated financial information. Consolidated financial information is utilized by the CODM as the Company’s current product offerings primarily consists of the Omnipod System and drug delivery. The Company’s products are relatively consistent and manufacturing is centralized and consistent across product offerings. Based on these factors, key operating decisions and resource allocations are made by the CODM using consolidated financial data and, as such, the Company has concluded that it operates as one segment. |
| Goodwill | Goodwill Goodwill represents the excess of the cost of acquired businesses over the fair value of identifiable net assets acquired. The Company follows the provisions of Financial Accounting Standards Board ("FASB") Accounting Standards Codification (“ASC”) 350-20, Intangibles - Goodwill and Other (“ASC 350-20”). The Company performs an assessment of its goodwill for impairment on at least an annual basis or whenever events or changes in circumstances indicate there might be impairment. The Company's annual impairment test date is October 1st. As the Company operates in one segment, the Company has considered whether that segment contains multiple reporting units. The Company has concluded that there is a single reporting unit as the Company does not have segment managers and discrete financial information below consolidated results is not reviewed on a regular basis. Based on this conclusion, goodwill is tested for impairment at the enterprise level. The Company has the option to first assess the qualitative factors to determine whether it is more likely than not that the fair value of its sole reporting unit is less than its carrying amount. This qualitative analysis is used as a basis for determining whether it is necessary to perform the two-step goodwill impairment analysis. If the Company determines that it is more likely than not that its fair value is less than its carrying amount, then the two-step goodwill impairment test will be performed. The first step compares the carrying value of the reporting unit to its fair value using either a market approach or a discounted cash flow analysis. If the carrying value of the reporting unit, including goodwill, exceeds its fair value, the Company will record an impairment loss to the extent that the reporting unit's carrying value exceeds its implied fair value as determined in step two of the impairment test. |
| Revenue Recognition | Revenue Recognition The Company generates the majority of its revenue from sales of its Omnipod System to customers and third-party distributors who resell the products to patients with diabetes, and to a lesser extent from product sales to pharmaceutical companies who use the Company’s technology as a delivery method for their pharmaceuticals. Revenue recognition requires that persuasive evidence of a sales arrangement exists, delivery of goods occurs through transfer of title and risk and rewards of ownership, the selling price is fixed or determinable and collectibility is reasonably assured. With respect to these criteria: • The evidence of an arrangement generally consists of a physician order form, a patient information form and, if applicable, third-party insurance approval for sales directly to patients or a purchase order for sales to a third-party distributor. • Transfer of title and risk and rewards of ownership are passed to the patient or third-party distributor upon shipment of the products. • The selling prices for all sales are fixed and agreed with the patient or third-party distributor and, if applicable, the patient’s third-party insurance provider(s) prior to shipment and are based on established list prices or, in the case of certain third-party insurers, contractually agreed upon prices. Provisions for discounts, rebates and other adjustments to customers are established as a reduction to revenue in the same period the related sales are recorded. The Company offers a 45 -day right of return for sales of its Omnipod System in the United States, and a 90 -day right of return for sales of its Omnipod System in Canada to new patients and defers revenue to reflect estimated sales returns in the same period that the related product sales are recorded. Returns are estimated through a comparison of the Company’s historical return data to its related sales. Historical rates of return are adjusted for known or expected changes in the marketplace when appropriate. When doubt exists about reasonable assuredness of collectibility from specific customers, the Company defers revenue from sales of products to those customers until payment is received. As of June 30, 2017 and December 31, 2016 , the Company had deferred revenue of $2.0 million and $1.9 million , respectively, which included $0.9 million and $0.6 million classified in other long-term liabilities as of June 30, 2017 and December 31, 2016 , respectively. Deferred revenue primarily relates to undelivered elements within certain of the Company's developmental arrangements and other instances where the Company has not yet met the revenue recognition criteria. |
| Collaborative Arrangements | Collaborative Arrangements The Company enters into collaborative arrangements for ongoing initiatives to develop products. Although the Company does not consider any individual alliance to be material, certain of the more notable alliances are described below. Eli Lilly and Company and Concentrated Insulins : In May 2013 and January 2016, the Company entered into agreements with Eli Lilly and Company to develop new versions of the Omnipod tubeless insulin delivery system specifically designed to deliver a concentrated form of insulin used by higher insulin-requiring patients with diabetes. Under the terms of these arrangements, the parties share the responsibility of the permissible costs that are incurred. Consideration received and payments made by the Company under the terms of the arrangements are recorded within research and development expense. |
| Shipping and Handling Costs | Shipping and Handling Costs The Company does not typically charge its customers for shipping and handling costs associated with shipping its product to its customers unless non-standard shipping and handling services are requested. These shipping and handling costs are included in general and administrative expenses and were $0.9 million and $0.7 million for the three months ended June 30, 2017 and 2016 , respectively, and were $2.2 million and $1.7 million for the six months ended June 30, 2017 and 2016 , respectively. |
| Concentration of Credit Risk | Concentration of Credit Risk Financial instruments that subject the Company to credit risk primarily consist of cash and cash equivalents, short-term investments and accounts receivable. The Company maintains the majority of its cash and short-term investments with one financial institution. Accounts are partially insured up to various amounts mandated by the Federal Deposit Insurance Corporation or by the foreign country where the account is held. |
| Recently Adopted and Not Yet Adopted Accounting Pronouncements | Recently Adopted Accounting Standards: In December 2016, the FASB issued ASU 2016-19, Technical Corrections and Improvements ("ASU 2016-19"). ASU 2016-19 includes numerous technical corrections and clarifications to GAAP that are designed to remove inconsistencies in the board’s accounting guidance. Several provisions in this accounting guidance were effective immediately which did not have an impact on the Company’s consolidated financial statements. Additional provisions in this accounting guidance are effective for the Company in the current fiscal year, including the clarification that the license of internal-use software shall be accounted for as the acquisition of an intangible asset. The standard allows for prospective or retrospective adoption and the Company has elected retrospective adoption. As a result of adoption, the Company reclassified $4.1 million of gross internal-use software costs, net of accumulated amortization of $2.6 million , from property and equipment to other intangible assets as of December 31, 2016. In July 2015, the FASB issued ASU 2015-11, Simplifying the Measurement of Inventory ("ASU 2015-11"). ASU 2015-11 amends existing guidance and requires entities to measure most inventory at the lower of cost and net realizable value. The guidance is effective prospectively for annual reporting periods beginning after December 15, 2016. Early adoption is permitted. Upon adoption, entities must disclose the nature of and reason for the accounting change. The Company adopted ASU 2015-11 on January 1, 2017 and its adoption did not have a material impact on the consolidated financial statements. The Company adopted ASU 2016-09, Improvements to Employee Share-Based Payment Accounting ("ASU 2016-09") on January 1, 2017 using the modified retrospective method. ASU 2016-09 simplifies several aspects of the accounting for employee share-based payment transactions, including the accounting for income taxes, forfeitures, and statutory tax withholding requirements, as well as classification in the statement of cash flows. The adoption of ASU 2016-09 resulted in the Company increasing its deferred tax assets (tax effected) by approximately $23.8 million , which is offset by a full valuation allowance. Overall, adoption of the standard did not have a material impact on the Company's consolidated financial statements. The Company adopted ASU 2016-18, Restricted Cash (a consensus of the Emerging Issues Task Force) ("ASU 2016-18") as of January 1, 2017 using the retrospective transition method. ASU 2016-18 requires the statement of cash flows to show the changes in the total of cash, cash equivalents, and restricted cash. As the Company includes restricted cash within cash and cash equivalents on the consolidated balance sheet and discloses the carrying value of restricted cash in the notes to the consolidated financial statements, there was no impact on the statement of cash flows upon the adoption of ASU 2016-18. Accounting Standards Issued and Not Yet Adopted: In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers ("ASU 2014-09"). ASU 2014-09 and its related amendments (collectively known as ASC 606) requires that a company recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. Under this guidance, a company makes additional estimates regarding performance conditions and the allocation of variable consideration and must evaluate whether revenue derived from a contract should be recognized at a point in time or over time. The guidance is effective in fiscal years beginning January 1, 2018, with early adoption permitted. The Company plans to adopt the standard as of the required effective date. The new standard permits two methods of adoption: retrospectively to each prior reporting period presented (full retrospective method), or retrospectively with the cumulative effect of initially applying the guidance recognized at the date of initial application (the modified retrospective method). The Company currently expects to adopt ASC 606 using the modified retrospective method. The Company continues to evaluate the potential impact of ASC 606 on its consolidated financial statements and related disclosures. As part of the Company's assessment work to-date, the Company has formed an implementation work team, completed training on the new ASC’s revenue recognition model and is continuing its contract review and documentation, for which to date the Company has made significant progress. Over the course of 2017, the Company plans to finalize its evaluation and implement any required policy, process, and internal control changes required as a result of that evaluation. While the Company continues to assess all potential impacts of the new standard on its contracts, the Company currently understands that the adoption of ASC 606 will impact the treatment of contract acquisition and fulfillment costs as such costs will be generally capitalized and amortized over the contract life under the new standard. In January 2017, the FASB issued ASU 2017-04, Simplifying the Test for Goodwill Impairment ("ASU 2017-04"). ASU 2017-04 simplifies the accounting for goodwill impairments by eliminating "Step 2" from the goodwill impairment test, which requires an entity to calculate the implied fair value of goodwill to measure a goodwill impairment charge, and, alternatively, requires an entity to measure the impairment of goodwill assigned to a reporting unit as the amount by which the carrying value of the assets and liabilities of the reporting unit, including goodwill, exceeds the reporting unit's fair value. The guidance is effective for annual reporting periods beginning after December 15, 2019, and interim periods within those years. Early adoption is permitted for all entities. The Company is currently evaluating the impact of ASU 2017-04 but does not expect it to be material to the consolidated financial statements. In January 2016, the FASB issued ASU 2016-01 ("ASU 2016-01"), Financial Instruments-Overall: Recognition and Measurement of Financial Assets and Financial Liabilities . ASU 2016-01 changes the current GAAP model for the accounting of equity investments, financial liabilities under the fair value option, and the presentation and disclosure requirements for financial instruments. All equity investments in unconsolidated entities (other than those accounted for using the equity method of accounting) will generally be measured at fair value through earnings. There will no longer be an available-for-sale classification (changes in fair value reported in other comprehensive income (loss)) for equity securities with readily determinable fair values. In addition, the FASB clarified guidance related to the valuation allowance assessment when recognizing deferred tax assets resulting from unrealized losses on available-for-sale debt securities. The classification and measurement guidance will be effective in fiscal years beginning after December 15, 2017, and interim periods within those years. While the Company is continuing to evaluate the potential impact of ASU 2016-01, the Company anticipates that the new guidance may create some volatility in earnings related to changes in fair value of its short term marketable securities. The Company does not expect the adoption of ASU 2016-01 to have a material impact on its consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, Leases ("ASU 2016-02"). ASU 2016-02 requires lessees to recognize the assets and liabilities on their balance sheet for the rights and obligations created by most leases and continue to recognize expenses on their income statements over the lease term. It will also require disclosures designed to give financial statement users information on the amount, timing, and uncertainty of cash flows arising from leases. The guidance is effective for annual reporting periods beginning after December 15, 2018, and interim periods within those years. Early adoption is permitted for all entities. While the Company is currently evaluating the impact of ASU 2016-02, the Company currently expects that the new guidance will require an increase in the Company's long-lived assets and a corresponding increase to long-term obligations associated with leased office and warehouse space. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230), Classification of Certain Cash Receipts and Cash Payments (a consensus of the Emerging Issues Task Force) ("ASU 2016-15"). ASU 2016-15 clarifies how entities should classify certain cash receipts and cash payments on the statement of cash flows. The guidance also clarifies how the predominance principle should be applied when cash receipts and cash payments have aspects of more than one class of cash flows. The guidance is effective for annual reporting periods beginning after December 15, 2017, and interim periods within those years. Early adoption is permitted for all entities. The Company is currently evaluating the impact of ASU 2016-15 but does not expect it to be material to the consolidated financial statements. In May 2017, the FASB issued ASU 2017-09, Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting . ("ASU 2017-09"). ASU 2017-09 specifies the types of changes to the terms or conditions of a share-based payment award that require an entity to apply modification accounting in accordance with Topic 718. The new standard is effective for the Company on January 1, 2018 and early adoption is permitted. The Company does not believe that the adoption of ASU 2017-09 will have a material impact on its consolidated financial statements. |
| Fair Value of Financial Instruments | The Company adopted ASC 820, Fair Value Measurements and Disclosures (“ASC 820”) related to the fair value measurement of certain of its assets and liabilities. ASC 820 defines fair value as the price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. A single estimate of fair value results from a complex series of judgments about future events and uncertainties and relies heavily on estimates and assumptions. When estimating fair value, depending on the nature and complexity of the asset or liability, the Company may use one or all of the following approaches: • Market approach, which is based on market prices and other information from market transactions involving identical or comparable assets or liabilities. • Cost approach, which is based on the cost to acquire or construct comparable assets less an allowance for functional and/or economic obsolescence. • Income approach, which is based on the present value of the future stream of net cash flows. To measure fair value, the Company uses the following fair value hierarchy based on three levels of inputs, as described in ASC 820, of which the first two are considered observable and the last unobservable: Level 1 — quoted prices in active markets for identical assets or liabilities Level 2 — observable inputs other than quoted prices in active markets for identical assets or liabilities Level 3 — unobservable inputs in which there is little or no market data available, which require the reporting entity to develop its own assumptions Certain of the Company’s financial instruments, including cash and cash equivalents, accounts receivable, accounts payable, accrued expenses and other liabilities are carried at cost, which approximates their fair value because of the short-term maturity of these financial instruments. |
| Accounts Receivable and Allowance for Doubtful Accounts | Accounts receivable consist of amounts due from third-party payors, patients, third-party distributors and government agencies. The Company records an allowance for doubtful accounts at the time potential collection risk is identified. The Company estimates its allowance based on historical experience, assessment of specific risk, discussions with individual customers or various assumptions and estimates that are believed to be reasonable under the circumstances. The Company believes the reserve is adequate to mitigate current collection risk. |
| Inventories | Inventories are held at the lower of cost or market, determined under the first-in, first-out method, and include the costs of material, labor and overhead. Inventory has been recorded at cost, or net realizable value as appropriate, as of June 30, 2017 and December 31, 2016 . The Company reviews inventories for net realizable value based on quantities on hand and expectations of future use. Work in process is calculated based upon a buildup in the stage of completion using estimated labor inputs for each stage in production. |
| Other Intangible Assets | The Company’s finite-lived intangible assets are stated at cost less accumulated amortization. The Company assesses its intangible and other long-lived assets for impairment whenever events or changes in circumstances suggest that the carrying value of an asset may not be recoverable. The Company recognizes an impairment loss for intangibles and other finite-lived assets if the carrying amount of a long-lived asset is not recoverable based on its undiscounted future cash flows. Any such impairment loss is measured as the difference between the carrying amount and the fair value of the asset. The estimation of useful lives and expected cash flows requires the Company to make significant judgments regarding future periods that are subject to some factors outside its control. Changes in these estimates can result in significant revisions to the carrying value of these assets and may result in material charges to the results of operations. |
| Product Warranty Costs | The Company provides a four -year warranty on its PDMs sold in the United States and a five -year warranty on its PDMs sold in Canada and may replace any Omnipod Systems that do not function in accordance with product specifications. The Company estimates its warranty at the time the product is shipped based on historical experience and the estimated cost to service the claims. Warranty expense is recorded in cost of revenue on the statement of operations. Cost to service the claims reflects the current product cost, which has been decreasing over time. As these estimates are based on historical experience, and the Company continues to introduce new products and versions, the Company also considers the anticipated performance of the product over its warranty period in estimating warranty reserves. |
| Equity | The Company accounts for stock-based compensation under the provisions of ASC 718-10, Compensation — Stock Compensation (“ASC 718-10”), which requires all share-based payments to employees and directors, including grants of stock options and restricted stock units, to be recognized in the income statement based on their fair values. Share-based payments that contain performance conditions are recognized when such conditions are probable of being achieved. The Company grants share-based awards to employees in the form of options to purchase the Company’s common stock, the ability to purchase stock at a discounted price under the employee stock purchase plan and restricted stock units. The Company uses the Black-Scholes option pricing model to determine the weighted-average fair value of options granted and determines the intrinsic value of restricted stock units based on the closing price of its common stock on the date of grant. The Company recognizes the compensation expense of share-based awards on a straight-line basis for awards with only service conditions and on an accelerated basis for awards with performance conditions. Compensation expense is recognized over the vesting period of the awards. The following table reflects the Company's stock-based compensation expense related to share-based awards recognized in the three and six months ended June 30, 2017 and 2016 : Three Months Ended June 30, Six Months Ended June 30, Unamortized Expense Weighted Average Remaining Contractual Life (Years) ($ in thousands) 2017 2016 2017 2016 At June 30, 2017 Stock options $ 2,909 $ 2,473 $ 5,688 $ 4,794 $ 21,009 2.5 Restricted stock units 4,500 2,970 8,737 5,920 30,213 2.1 Employee stock purchase plan 122 71 230 71 248 0.4 Total $ 7,531 $ 5,514 $ 14,655 $ 10,785 $ 51,470 Stock Options In May 2007, in conjunction with the Company's initial public offering, the Company adopted its 2007 Stock Option and Incentive Plan (the "2007 Plan"). The 2007 Plan was amended and restated in November 2008, May 2012 and May 2015 to provide for the issuance of additional shares and to amend certain other provisions. Under the 2007 Plan, awards may be granted to persons who are, at the time of grant, employees, officers, non-employee directors or key persons (including consultants and prospective employees) of the Company. The 2007 Plan provides for the granting of stock options, restricted stock units, stock appreciation rights, deferred stock awards, restricted stock, unrestricted stock, cash-based awards, performance share awards or dividend equivalent rights. Options granted under the 2007 Plan generally vest over a period of four years and expire ten years from the date of grant. As of June 30, 2017 , 3,334,992 shares remain available for future issuance under the 2007 Plan. |
| Fair Value Measurement | The determination of the fair value of share-based payment awards utilizing the Black-Scholes model is affected by the stock price and the following assumptions, including expected volatility, expected life of the awards, the risk-free interest rate, and the dividend yield. • Expected volatility measures the amount that a stock price has fluctuated or is expected to fluctuate during a period and is computed over expected terms based upon the historical volatility of the Company's stock. • The expected life of the awards is estimated based on the midpoint scenario, which combines historical exercise data with hypothetical exercise data for outstanding options, as the Company believes this data currently represents the best estimate of the expected life of a new employee option. The Company stratifies its employee population into two groups based upon organizational hierarchy. • The risk-free interest rate assumption is based on U.S. Treasury zero-coupon issues with remaining terms similar to the expected term on the options. • The dividend yield assumption is based on Company history and expectation of paying no dividends. The Company has never declared or paid any cash dividends and does not plan to pay cash dividends in the foreseeable future, and, therefore, used an expected dividend yield of zero in the valuation. Forfeitures are estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates. Stock-based compensation expense recognized in the financial statements is based on awards that are ultimately expected to vest. If the Company’s actual forfeiture rate is materially different from its estimate, the stock-based compensation expense could be significantly different from what the Company has recorded in the current period. The Company evaluates the assumptions used to value the awards on a quarterly basis and if factors change and different assumptions are utilized, stock-based compensation expense may differ significantly from what has been recorded in the past. If there are any modifications or cancellations of the underlying unvested securities, the Company may be required to accelerate, increase or cancel any remaining unearned stock-based compensation expense. The estimated grant date fair values of the employee stock options were calculated using the Black-Scholes option pricing model. |
| Income Taxes | The Company accounts for income taxes under the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the financial statements. Deferred tax assets and liabilities are determined based on differences between the financial reporting and tax bases of assets and liabilities and are measured using the enacted tax rates that will be in effect in the years in which the differences are expected to reverse. The Company reviews its deferred tax assets for recoverability considering historical profitability, projected future taxable income, and the expected timing of the reversals of existing temporary differences and tax planning strategies. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in income in the period that includes the enactment date. The Company follows the provisions of ASC 740-10, Income Taxes (“ASC 740-10”) on accounting for uncertainty in income taxes recognized in its financial statements. ASC 740-10 prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. In addition, ASC 740-10 provides guidance on derecognition, classification, interest and penalties, accounting in interim periods, disclosure and transition. The Company recognizes estimated interest and penalties for uncertain tax positions in income tax expense. The Company files federal, state and foreign tax returns. These returns are generally open to examination by the relevant tax authorities from three to four years from the date they are filed. The tax filings relating to the Company's federal and state tax returns are currently open to examination for tax years 2013 through 2015 and 2012 through 2015, respectively. In addition, the Company has generated tax losses since its inception in 2000. These years may be subject to examination if the losses are carried forward and utilized in future years. |
