Description of Business and Summary of Significant Accounting Policies | Description of Business and Summary of Significant Accounting Policies Description of Business Maxwell Technologies, Inc. is a Delaware corporation originally incorporated in 1965 under the name Maxwell Laboratories, Inc. In 1983, the Company completed an initial public offering, and in 1996, changed its name to Maxwell Technologies, Inc. The Company is headquartered in San Diego, California, and has two manufacturing facilities located in Rossens, Switzerland and Peoria, Arizona. In April 2016, the Company exited its manufacturing facility in San Diego, California. In addition, the Company has two contract manufacturers located in China. Maxwell operates as one operating segment, which is comprised of two product lines: • Ultracapacitors: Ultracapacitors are energy storage devices that possess a unique combination of high power density, extremely long operational life and the ability to charge and discharge very rapidly. The Company’s ultracapacitor cells, multi-cell packs and modules provide highly reliable energy storage and power delivery solutions for applications in multiple industries, including automotive, bus, rail and truck in transportation and grid energy storage, and wind in renewable energy. The Company has been focusing on developing complementary lithium-ion capacitors which are cost efficient energy storage devices with the power characteristics of an ultracapacitor combined with enhanced energy storage capacity. They are uniquely designed to address a variety of applications in the rail, grid, and industrial markets where energy density and weight are differentiating factors. • High-Voltage Capacitors: The Company’s CONDIS ® high-voltage capacitors are designed and manufactured to perform reliably for decades in all climates. These products include grading and coupling capacitors and capacitive voltage dividers that are used to ensure the safety and reliability of electric utility infrastructure and other applications involving transport, distribution and measurement of high-voltage electrical energy. In April 2016, the Company sold substantially all of the assets and liabilities of a third product line, radiation-hardened microelectronics. The Company’s radiation-hardened microelectronic products for satellites and spacecraft included single board computers and components, such as high-density memory and power modules. The Company’s products are designed and manufactured to perform reliably for the life of the products and systems into which they are integrated. The Company achieves high reliability through the application of proprietary technologies and rigorously controlled design, development, manufacturing and test processes. Financial Statement Presentation The accompanying consolidated financial statements include the accounts of Maxwell Technologies, Inc. and its subsidiaries and have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”). All intercompany transactions and account balances have been eliminated in consolidation. Liquidity As of December 31, 2016 , the Company had approximately $25.4 million in cash and cash equivalents, and working capital of $53.1 million . In July 2015, the Company entered into a loan agreement with East West Bank (“EWB”), whereby EWB made available to the Company a secured credit facility in the form of a revolving line of credit which is available up to a maximum of the lesser of: (a) $25.0 million ; or (b) a certain percentage of domestic and foreign trade receivables. As of December 31, 2016 , no amounts have been borrowed under this revolving line of credit and the amount available was $11.4 million . Management believes the available cash balance, along with the available borrowings under the revolving line of credit, will be sufficient to fund operations, obligations as they become due, and capital investments for at least the next twelve months. Reclassifications “Amortization of prepaid debt costs” for the years ended December 31, 2015 and 2014 has been reclassified to “interest expense, net” and “changes in operating assets and liabilities,” in the consolidated statements of operations and consolidated statements of cash flows, respectively, to conform to the current period presentation. In accordance with the Company’s early adoption of ASU No. 2016-18, changes in restricted cash for the years ended December 2016 and 2015 have been reclassified in the consolidated statements of cash flows and restricted cash balances have been included with beginning and ending cash and cash equivalent balances in the consolidated statements of cash flows. These reclassifications do not impact reported net loss and do not otherwise have a material impact on the presentation of the overall financial statements. Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect reported amounts and related disclosures. These estimates include, but are not limited to, assessing the collectability of accounts receivable, applied and unapplied production costs, production capacities, the usage and recoverability of inventories and long-lived assets, deferred income taxes, the incurrence of warranty obligations, impairment of goodwill, estimation of the cost to complete certain projects, estimation of pension assets and liabilities, accruals for estimated losses for legal matters, and estimation of the value of stock-based compensation awards, including the probability that the performance criteria of restricted stock units awards will be met. Revenue Recognition Revenue is derived primarily from the sale of manufactured products directly to customers. Product revenue is recognized, according to the guidelines of the Securities and Exchange Commission (“SEC”) Staff Accounting Bulletin (“SAB”) Numbers 101, Revenue Recognition in Financial Statements , and 104, Revenue Recognition , when all of the following criteria are met: (1) persuasive evidence of an arrangement exists (upon contract signing or receipt of an authorized purchase order from a customer); (2) title passes to the customer at either shipment from the Company’s facilities or receipt at the customer facility, depending on shipping terms; (3) customer payment is deemed fixed or determinable and free of contingencies or significant uncertainties; and (4) collectability is reasonably assured. This policy has been consistently applied from period to period. A portion of our sales revenue is derived from sales to distributors. Distributor revenue is recognized when all of the criteria for revenue recognition are met, which is generally the time of shipment to the distributor; all returns and credits are estimable and not significant. Revenue from production-type contracts, which represent less than five percent of total revenue, is recognized using the percentage of completion method. The degree of completion is determined based on costs incurred as a percentage of total costs anticipated, excluding costs that are not representative of progress to completion. Total deferred revenue and customer deposits in the consolidated balance sheets as of December 31, 2016 and 2015 was $4.0 million and $3.1 million , respectively, and primarily relates to cash received from a customer in connection with a production-type contract, for which revenue is recognized using the percentage of completion method, and payments received under a joint development agreement, which are recognized as an offset to research and development expense as services are performed. Cash and Cash Equivalents Cash and cash equivalents consist primarily of cash in readily available checking accounts. Cash equivalents consist of highly liquid investments that are readily convertible to cash and that mature within three months or less from the date of purchase. The carrying amounts approximate fair value due to the short maturities of these instruments. Accounts Receivable and Allowance for Doubtful Accounts Trade receivables are stated at gross invoiced amount less an allowance for uncollectible accounts. The allowance for doubtful accounts reflects management’s best estimate of probable losses inherent in the accounts receivable balance. Management determines the allowance for doubtful accounts based on known troubled accounts, historical experience and other currently available evidence. Inventories, net Inventories are stated at the lower of cost (first-in first-out basis) or market. Finished goods and work-in-process inventory values include the cost of raw materials, labor and manufacturing overhead. Inventory when written down to market value establishes a new cost basis and its value is not subsequently increased based upon changes in underlying facts and circumstances. The Company also makes adjustments to reduce the carrying amount of inventories for estimated excess or obsolete inventories. Factors influencing these adjustments include inventories on-hand compared with historical and estimated future sales for existing and new products and assumptions about the likelihood of obsolescence. Unabsorbed manufacturing costs are treated as expense in the period incurred. Property and Equipment Property and equipment are carried at cost and are depreciated using the straight-line method. Depreciation is provided over the estimated useful lives of the related assets ( three to ten years). Leasehold improvements are depreciated over the shorter of their estimated useful life or the term of the lease. Leasehold improvements funded by landlords are recorded as property and equipment, which is depreciated over the shorter of the estimated useful life of the asset or the lease term, and deferred rent, which is amortized over the lease term. As of December 31, 2016 and 2015 , the net book value of leasehold improvements funded by landlords was $1.7 million and $2.2 million , respectively. As of December 31, 2016 and 2015 , the unamortized balance of deferred rent related to landlord funding of leasehold improvements was $1.7 million and $2.2 million , respectively, which is included in “accounts payable and accrued liabilities” and “other long-term liabilities” in the consolidated balance sheets. Goodwill Goodwill, which represents the excess of the cost of an acquired business over the net fair value assigned to its assets and liabilities, is not amortized. Instead, goodwill is assessed annually at the reporting unit level for impairment under the Intangibles—Goodwill and Other Topic of the FASB ASC. The Company has established December 31 as the annual impairment test date. In addition, the Company assesses goodwill in between annual test dates if an event occurs or circumstances change that could more likely than not reduce the fair value of a reporting unit below its carrying value. The Company first makes a qualitative assessment as to whether goodwill is impaired. If it is more likely than not that goodwill is impaired, the Company performs a two-step quantitative impairment analysis to determine if goodwill is impaired. The Company may also determine to skip the qualitative assessment in any year and move directly to the quantitative test. During the year ended December 31, 2016 , the Company performed a quantitative step one goodwill impairment analysis for one reporting unit, which required the Company to make significant assumptions and estimates about the extent and timing of future cash flows, discount rates and growth rates. The step one analysis indicated that the goodwill assigned to the reporting unit was not impaired and no further quantitative testing was performed. No impairments of goodwill were reported during the years ended December 31, 2016 , 2015 and 2014 . Also see Note 3, Goodwill, for further discussion of the Company’s goodwill impairment analysis. Impairment of Long-Lived Assets Property and equipment are reviewed for impairment whenever events or changes in circumstances indicate the carrying value of the assets may not be recoverable. If the Company determines that the carrying value of the asset is not recoverable, a permanent impairment charge is recorded for the amount by which the carrying value of the long-lived asset exceeds its fair value. During the year ended December 31, 2016 , the Company recorded impairment charges of $1.4 million related to property and equipment. In the fourth quarter of 2016, the Company recorded $1.2 million of impairment charges related to machinery which was no longer forecasted to be utilized during its remaining useful life based on the current production forecast and for which the fair value approximated zero. Additionally, during the third quarter of 2016, $0.2 million of impairment charges were recorded related to the cancellation of a project. No impairments of property and equipment were recorded during the years ended December 31 2015 and 2014 . Warranty Obligation The Company provides warranties on all product sales. The majority of the Company’s warranties are for one to eight years in the normal course of business. The Company accrues for the estimated warranty costs at the time of sale based on historical warranty experience plus any known or expected changes in warranty exposure. As of December 31, 2016 and 2015 , the accrued warranty liability included in “accounts payable and accrued liabilities” in the consolidated balance sheets was $1.2 million and $1.3 million , respectively. Income Taxes Deferred income taxes are provided on a liability method in accordance with the Income Taxes Topic of the FASB ASC, whereby deferred tax assets are recognized for deductible temporary differences and deferred tax liabilities are recognized for taxable temporary differences. Under this method, deferred income taxes are recorded to reflect the tax consequences on future years of temporary differences between the tax basis of assets and liabilities and their reported amounts at each period end. If it is more likely than not that some portion or all of a deferred tax asset will not be realized, a valuation allowance is recognized. The guidance also provides criteria for the recognition, measurement, presentation and disclosures of uncertain tax positions. A tax benefit from an uncertain tax position may be recognized if it is “more likely than not” that the position is sustainable based solely on its technical merits. Concentration of Credit Risk The Company maintains cash balances at various financial institutions primarily in California and in Switzerland. In California, cash balances commonly exceed the $250,000 Federal Deposit Insurance Corporation insurance limit. In Switzerland, the banks where the Company has cash deposits are either government-owned, or in the case of cash deposited with non-government banks, deposits are insured up to 100,000 Swiss Francs. The Company has not experienced any losses in such accounts and management believes that the Company is not exposed to any significant credit risk with respect to such cash and cash equivalents. Financial instruments, which subject the Company to potential concentrations of credit risk, consist principally of the Company’s accounts receivable. The Company’s accounts receivable result from product sales to customers in various industries and in various geographical areas, both domestic and foreign. The Company performs credit evaluations of its customers and generally requires no collateral. No customers accounted for 10% or more of total revenue during the year ended December 31, 2016 or 10% or more of total accounts receivable at December 31, 2016. One customer, Shenzhen Xinlikang Supply China Management Co. LTD., accounted for 19% and 20% of total revenue in 2015 and 2014 , respectively, and accounted for 33% of total accounts receivable as of December 31, and 2015 . Research and Development Expense Research and development expenditures are expensed in the period incurred. Third-party funding of research and development expense under cost-sharing arrangements is recorded as an offset to research and development expense in the period the expenses are incurred. Research and development expense was $20.9 million , $24.7 million and $26.3 million , net of third-party funding under cost-sharing arrangements of $1.2 million , $1.3 million and $1.0 million , for the years ended December 31, 2016 , 2015 and 2014 , respectively. During 2016, the Company entered into a joint development agreement under which it will receive cash consideration of up to $2.8 million to fund the short-term costs of developing technologies for the automotive market. During the year ended December 31, 2016, the Company received $2.0 million of cash related to the joint development agreement and recognized $0.6 million as an offset to research and development expense, which is included in total third party funding of $1.2 million . The remaining $1.4 million is recorded in “deferred revenue and customer deposits” in the Company’s consolidated balance sheets and is expected to be recognized in 2017 based on performance under the agreement. The potential additional funding of $0.8 million under the agreement is contingent on the achievement of a milestone, for which the probability of achievement is uncertain as of December 31, 2016. Shipping and Handling Expense The Company recognizes shipping and handling expenses as a component of cost of revenue. Advertising Expense Advertising costs are expensed in the period incurred. Advertising expense was $0.7 million , $1.1 million and $1.4 million for the years ended December 31, 2016 , 2015 and 2014 , respectively. Foreign Currencies The Company’s primary foreign currency exposure is related to its subsidiary in Switzerland, which has Euro and local currency (Swiss Franc) revenue and operating expenses, and local currency loans. Changes in these currency exchange rates impact the reported U.S. dollar amount of revenue, expenses and debt. The functional currency of the Swiss subsidiary is the Swiss Franc. Assets and liabilities of the Swiss subsidiary are translated at month-end exchange rates, and revenue, expenses, gains and losses are translated at rates of exchange that approximate the rate in effect at the time of the transaction. Any translation adjustments resulting from this process are presented separately as a component of accumulated other comprehensive income within stockholders’ equity in the consolidated balance sheets. Foreign currency transaction gains and losses on intercompany balances considered long term in nature are accounted for as translation adjustments within equity. All other foreign currency transaction gains and losses are reported in “foreign currency exchange loss, net” in the consolidated statements of operations. Foreign Currency Derivative Instruments The Company has historically used forward contracts to hedge certain monetary assets and liabilities, primarily receivables, payables, and cash balances, denominated in foreign currencies. The Company’s objective was to partially offset gains or losses resulting from these exposures with opposing gains or losses on the forward contracts, thereby reducing volatility of earnings created by these foreign currency exposures. During the year ended December 31, 2016, the Company ceased using foreign currency forward contracts to hedge foreign currency transaction exposure as management determined its foreign currency transaction exposure is no longer significant. In accordance with the Derivatives and Hedging Topic of the FASB ASC, the fair values of the forward contracts were estimated at each period end based on quoted market prices and were recorded as a net asset or liability on the consolidated balance sheets. These contracts were considered economic hedges but were not designated as hedges under the Derivatives and Hedging Topic of the FASB ASC, therefore, the change in the fair value of the instruments was recognized in the consolidated statements of operations and was recorded in “foreign currency exchange loss, net” in the consolidated statements of operations. Net Income (Loss) per Share In accordance with the Earnings Per Share Topic of the FASB ASC, basic net income (loss) per share is calculated using the weighted average number of common shares outstanding during the period. Diluted net income per share includes the impact of additional common shares that would have been outstanding if dilutive potential common shares were issued. Potentially dilutive securities are not considered in the calculation of diluted net loss per share, as their inclusion would be anti-dilutive. The following table sets forth the computation of basic and diluted net income (loss) per share (in thousands, except per share data): Years Ended December 31, 2016 2015 2014 Numerator Net loss $ (23,705 ) $ (22,333 ) $ (6,272 ) Denominator Weighted average common shares outstanding, basic and diluted 31,870 30,716 29,216 Net loss per share Basic and diluted $ (0.74 ) $ (0.73 ) $ (0.21 ) The following table summarizes instruments that may be convertible into common shares that are not included in the denominator used in the diluted net income (loss) per share calculation because to do so would be anti-dilutive (in thousands): Common Stock 2016 2015 2014 Outstanding options to purchase common stock 414 931 672 Unvested restricted stock awards 88 245 528 Unvested restricted stock unit awards 1,748 885 224 Employee stock purchase plan awards — 10 9 Bonus to be paid in stock awards 265 — — Stock-Based Compensation The Company issues stock-based compensation awards to its employees and non-employee directors, including stock options, restricted stock, restricted stock units, and shares under an employee stock purchase plan. The Company records compensation expense for stock-based awards in accordance with the criteria set forth in the Stock Compensation Subtopic of the FASB ASC. The Company uses the Black-Scholes option pricing model to estimate the fair value of stock option grants. The determination of the fair value of stock options utilizing the Black-Scholes model is affected by the Company’s stock price and a number of assumptions, including expected volatility, expected term, risk-free interest rate and expected dividends. The fair value of restricted stock awards (“RSAs”) and restricted stock unit awards (“RSUs”) with service-based or performance-based vesting is based on the closing market price of the Company’s common stock on the date of grant. Compensation expense equal to the fair value of each RSA or RSU is recognized ratably over the requisite service period. For RSUs with vesting contingent on Company performance conditions, the Company uses the requisite service period that is most likely to occur. The requisite service period is estimated based on the performance period as well as any time-based service requirements. If it is unlikely that a performance condition will be achieved, no compensation expense is recognized unless it is later determined that achievement of the performance condition is likely. Expense may be adjusted for changes in the expected outcomes of the related performance conditions, with the impact of such changes recognized as a cumulative adjustment in the consolidated statement of operations in the period in which the expectation changes. In 2014 and 2016, the Company issued market-condition RSUs to certain members of executive management. Since the vesting of the market-condition RSUs is dependent on stock price performance, the fair values of these awards were estimated using a Monte-Carlo valuation model. The determination of the fair value of market-condition RSUs utilizing a Monte-Carlo valuation model was affected by the Company’s stock price and a number of assumptions, including expected volatility, expected life, risk-free interest rate and expected dividends. In 2016, Company adopted a bonus plan that enabled participants to earn annual incentive bonuses based upon achievement of specified financial and strategic performance objectives. Under the terms of this plan, the Company has the ability to settle bonuses earned under the plan with fully vested RSUs. For the fiscal year 2016 performance period, the Company intends to settle the amounts earned under the bonus plan in fully vested RSUs in the first quarter of 2017. The stock-based compensation expense accrued under this bonus plan represents stock-settled debt per ASC 718 and ASC 480, as such, the Company has recorded a liability for bonuses expected to be paid in fully vested RSUs in “accrued employee compensation” in the Company’s consolidated balance sheets. Stock-based compensation expense recognized in the consolidated statements of operations is based on equity awards ultimately expected to vest. The Company estimates forfeitures at the time of grant and revises forfeitures, if necessary, in subsequent periods with a cumulative catch up adjustment if actual forfeitures differ from those estimates. For market-condition awards, because the effect of the market-condition is reflected as an adjustment to the awards’ fair value at grant date, subsequent forfeitures due to the Company’s stock price performance do not result in a reversal of expense. Recent Accounting Pronouncements In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, Revenue from Contracts with Customers . The standard provides companies with a single model for accounting for revenue arising from contracts with customers and supersedes current revenue recognition guidance, including industry-specific revenue guidance. The core principle of the model is to recognize revenue when control of the goods or services transfers to the customer, as opposed to recognizing revenue when the risks and rewards transfer to the customer under the existing revenue guidance. The guidance permits companies to either apply the requirements retrospectively to all prior periods presented, or apply the requirements in the year of adoption, through a cumulative adjustment. In August 2015, the FASB issued ASU 2015-14, Deferral of the Effective Date , which defers the required adoption date of ASU 2014-09 by one year. As a result of the deferred effective date, ASU 2014-09 will be effective for the Company in its first quarter of fiscal 2018. Early adoption is permitted but not before the original effective date of the new standard of the first quarter of fiscal 2017. The following ASUs were subsequently issued by the FASB to clarify the implementation guidance in some areas and add practical expedients: In March 2016, ASU 2016-08, Revenue from Contracts with Customers: Principal versus Agent Considerations; in April 2016, ASU 2016-10, Revenue from Contracts with Customers: Identifying Performance Obligations and Licensing; in May 2016, ASU 2016-12, Revenue from Contracts with Customers: Narrow Scope Improvements and Practical Expedients; and in December 2016, ASU 2016-20, Technical Corrections and Improvements to Revenue from Contracts with Customers . The Company’s has begun the process of evaluating its standard product sales arrangements and has not yet identified any expected material impact on the timing and measurement of revenue for these arrangements from the adoption of this standard; however, the Company has not yet formalized its final conclusions from this review process. The Company is still evaluating the impact of adoption on non-product sale arrangements, which represent less than five percent of revenue. The Company has also developed a comprehensive project plan to guide implementation of the new standard. The Company has not yet determined its method of adoption for the new accounting standard. In February 2016, the FASB issued ASU No. 2016-02, Leases . The standard requires that a lessee recognize the assets and liabilities that arise from operating leases. A lessee should recognize in its balance sheet a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and lease liabilities. In transition, lessees and lessors are required to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach. The guidance in ASU 2016-02 is effective for annual and interim reporting periods beginning after December 15, 2018. The Company’s initial evaluation of its current leases does not indicate that the adoption of this standard will have a material impact on its consolidated statements of operations. The Company expects that the adoption of the standard will have a material impact on its consolidated balance sheets for the recognition of certain operating leases as right-of-use assets and lease liabilities. In March 2016, the FASB issued ASU No. 2016-09, Improvements to Employee Share-Based Payment Accounting, which changes the accounting for employee share-based payments, including the accounting for income taxes, forfeitures, and statutory tax withholding requirements, as well as classification in the statement of cash flows. Under the new guidance, excess tax benefits associated with share-based payment awards will be recognized in the income statement when the awards vest or settle, rather than in stockholders’ equity. In addition, it will increase the number of shares an employer can withhold to cover income taxes on share-based payment awards and still qualify for the exemption to liability classification. The guidance will be effective for the Company in its first quarter of fiscal 2017. The Company expects that the adoption of this standard will result in the recognition of approximately $10.0 million of deferred tax assets related to stock-based compensation and a corresponding increase in the Company’s valuation allowance, which will be disclosed in the Company’s notes to consolidated financial statements. The Company does not expect that the adoption of this standard will have a material effect on its consolidated financial statements. In August, 2016, the FASB issued ASU No. 2016-15, Classification of Certain Cash Receipts and Cash Payments, which provides guidance on the presentation and classification in the statement of cash flows for eight specific cash flow issues. The guidance will be effective for the Company in its first quarter of fiscal 2018. Early adoption is permitted in any annual or interim period. The Company has not identified any of the eight specific cash flow issues within its consolidated financial statements, therefore the Company does not expect that the adoption of this standard will have a material effect on its consolidated statements of cash flows. In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows - Restricted Cash , which requires entities to show the changes in the total of cash, cash equivalents, restricted cash and restricted cash equivalents in the statement of cash flows. The guidance will be effective for the Company in its first quarter of fiscal 2018. Early adoption is permitted, including adoption in an interim period, but any adjustments must be reflected as of the beginning of the fiscal year that includes that interim period. The new standard must be adopted retrospectively. The Company early adopted this standard in the fourth quarter of 2016 resulting in the reclassification of restricted cash in the presentation of its consolidated statements of cash flows. In January 2017, the FASB issued ASU 2017 No. 2017-04, Intangibles - Goodwill and Other, which eliminates step two from the annual goodwill impairment test. The standard is effective for the Company in the first quarter of 2020, with early adoption permitted as of January 1, 2017, and is to be applied on a prospective basis. The adoption of the standard will not materially impact the Company's consolidated financial statements unless step one of the annual goodwill impairment test fails. The Company is currently evaluating the timing of its planned adoption of this standard. Business Enterprise Information The Company operates as a single operating segment. According to the FASB ASC Topic Disclosures about Segments of an Enterprise and Related Information , operating segments are defined as components of an enterprise for which separate financial information is evaluated regularly by the chief operating decision maker (“CODM”) in deciding how to allocate resources and in assessing perfor |