The Company and Summary of Significant Accounting Policies | The Company and Summary of Significant Accounting Policies The Company We design, manufacture and sell a range of wireless networking solutions and services to mobile and fixed telephone service providers, private network operators, government agencies, transportation and utility companies, public safety agencies and broadcast system operators across the globe. Our products include broadband wireless access base stations and customer premises equipment for fixed and mobile, point-to-point digital microwave radio systems for access, backhaul, trunking and license-exempt applications, supporting new network deployments, network expansion, and capacity upgrades. We were incorporated in Delaware in 2006 to combine the businesses of Harris Corporation’s Microwave Communications Division (“MCD”) and Stratex Networks, Inc. (“Stratex”). On January 28, 2010, we changed our corporate name from Harris Stratex Networks, Inc. to Aviat Networks, Inc. (“the Company”, “Aviat Networks,” “Aviat”, “we,” “us,” and “our”) to more effectively reflect our business and communicate our brand identity to customers. Additionally, the change of our corporate name was to comply with the termination of the Harris Corporation (“Harris”) trademark licensing agreement resulting from the spin-off by Harris of its interest in our stock to its stockholders in May 2009. Basis of Presentation The consolidated financial statements include the accounts of Aviat Networks and its wholly-owned and majority owned subsidiaries. Significant intercompany transactions and accounts have been eliminated. Our fiscal year ends on the Friday nearest June 30. This was July 3 for fiscal 2020, June 28 for fiscal 2019 and June 29 for fiscal 2018. Fiscal 2020 presented included 53 weeks while fiscal 2019 and fiscal 2018 presented each included 52 weeks. In these notes to consolidated financial statements, we refer to our fiscal years as “fiscal 2020”, “fiscal 2019” and “fiscal 2018.” Use of Estimates The preparation of consolidated financial statements in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) requires us to make estimates, assumptions and judgments affecting the amounts reported and related disclosures. Estimates are based upon historical factors, current circumstances and the experience and judgment of our management. We evaluate our estimates and assumptions on an ongoing basis and may employ outside experts to assist us in making these evaluations. Changes in such estimates, based on more accurate information, or different assumptions or conditions, may affect amounts reported in future periods. Such estimates affect significant items, including revenue recognition, provision for uncollectible receivables, inventory valuation, valuation allowances for deferred tax assets, uncertainties in income taxes, restructuring obligations, product warranty obligations, share-based awards, contingencies, recoverability of long-lived assets and useful lives of property, plant and equipment. Cash, Cash Equivalents and Restricted Cash We consider all highly liquid investments with an original maturity of three months or less at the date of purchase to be cash equivalents. Cash equivalents are carried at amortized cost, which approximates fair value due to the short-term nature of these investments. Investments with an original maturity of greater than three months are accounted for as short-term investments and are classified as such at the time of purchase. We hold cash and cash equivalents at several major financial institutions, which often significantly exceed Federal Deposit Insurance Corporation insured limits. However, a substantial portion of the cash equivalents is invested in prime money market funds which are backed by the securities in the fund. As of July 3, 2020 and June 28, 2019, all of our high-quality marketable debt securities were invested in prime money market funds. Cash and cash equivalents that are restricted as to withdrawal or usage under the terms of contractual agreements are recorded as restricted cash. Our long-term restricted cash included the cash balance in our disability insurance voluntary plan account that cannot be used by us for any operating purposes other than to pay benefits to the insured employees and was recorded in other assets on our consolidated balance sheets and the corresponding liabilities were included in other long-term liabilities on our consolidated balance sheets. Significant Concentrations We typically invoice our customers for the sales order (or contract) value of the related products delivered at various milestones, including order receipt, shipment, installation and acceptance and for services when rendered. Our trade receivables are derived from sales to customers located in North America, Africa, Europe, the Middle East, Russia, Asia-Pacific and Latin America. Accounts receivable is presented net of allowance for estimated uncollectible accounts to reflect any loss anticipated on the collection of accounts receivable balances. We calculate the allowance based on our history of write-offs, level of past due accounts and the economic status of the customers. The fair value of our accounts receivable approximates their net realizable value. We regularly require letters of credit from certain customers and, from time to time, we discount these letters of credit issued by customers through various financial institutions. The discounting of letters of credit depends on many factors, including the willingness of financial institutions to discount the letters of credit and the cost of such arrangements. Under these arrangements, collection risk is fully transferred to the financial institutions. We record the financing charges on discounting these letters of credit as interest expense. During fiscal 2020, there were no customers that accounted for more than 10% of our total revenue. During fiscal 2019 and 2018, Mobile Telephone Networks Group (“MTN Group”) in Africa accounted for 11% and 13%, respectively, of our total revenue. As of July 3, 2020 and June 28, 2019, MTN Group accounted for approximately 21% and 13%, respectively, of our accounts receivable. Financial instruments that potentially subject us to a concentration of credit risk consist principally of cash equivalents, marketable debt securities, trade accounts receivable and financial instruments used in foreign currency hedging activities. We invest our excess cash primarily in prime money market funds and certificates of deposit. We are exposed to credit risks related to such instruments in the event of default or decrease in credit-worthiness of the issuers of the investments. We perform ongoing credit evaluations of our customers and generally do not require collateral on accounts receivable, as the majority of our customers are large, well-established companies. However, in certain circumstances, we may require letters of credit, additional guarantees or advance payments. We maintain allowances for collection losses, but historically have not experienced any significant losses related to any particular geographic area. Our customers are primarily in the telecommunications industry, so our accounts receivable are concentrated within one industry and exposed to concentrations of credit risk within that industry. Accounts receivable are written off when attempts to collect outstanding amounts have been exhausted or there are other indicators that the amounts are no longer collectible. We rely on third parties to manufacture our products and we purchase raw materials from third-party vendors. In addition, we purchase certain strategic component inventory which is consigned to our third-party manufacturers. Other components included in our products are sourced from various suppliers and are principally industry standard parts and components that are available from multiple vendors. The inability of a contract manufacturer or supplier to fulfill our supply requirements or changes in their financial or business condition could disrupt our ability to supply quality products to our customers, and thereby may have a material adverse effect on our business and operating results. We have entered into agreements relating to our foreign currency contracts with Silicon Valley Bank, a multinational financial institution. The amounts subject to credit risk arising from the possible inability of any such parties to meet the terms of their contracts are generally limited to the amounts, if any, by which such party’s obligations exceed our obligations to that party. Inventories Inventories are valued at the lower of cost and net realizable value. Net realizable value is defined as the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion, disposal and transportation. Cost is determined using standard cost, which approximates actual cost on a weighted-average first-in- first-out basis. We regularly review inventory quantities on hand and record adjustments to reduce the cost of inventory for excess and obsolete inventory based primarily on our estimated forecast of product demand and production requirements. Inventory adjustments are measured as the difference between the cost of the inventory and net realizable value based upon assumptions about future demand and charged to the provision for inventory, which is a component of cost of sales. At the point of the loss recognition, a new, lower-cost basis for that inventory is established, and any subsequent improvements in facts and circumstances do not result in the restoration or increase in that newly established cost basis. Customer Service Inventories Our customer service inventories are stated at the lower of cost and net realizable value. We carry service parts because we generally provide product warranty for 12 to 36 months and earn revenue by providing enhanced and extended warranty and repair service during and beyond this warranty period. Customer service inventories consist of both component parts, which are primarily used to repair defective units, and finished units, which are provided for customer use permanently or on a temporary basis while the defective unit is being repaired. We record adjustments to reduce the carrying value of customer service inventories to their net realizable value. Factors influencing these adjustments include product life cycles, end of service life plans and volume of enhanced or extended warranty service contracts. Estimates of net realizable value involve significant estimates and judgments about the future, and revisions would be required if these factors differ from our estimates. Property, Plant and Equipment Property, plant and equipment are stated on the basis of cost less accumulated depreciation and amortization. We capitalize costs of software, consulting services, hardware and other related costs incurred to purchase or develop internal-use software. We expense costs incurred during preliminary project assessment, re-engineering, training and application maintenance. Depreciation and amortization are calculated using the straight-line method over the estimated useful lives of the respective assets. Leasehold improvements are amortized on the straight-line method over the shorter of the remaining lease term or the estimated useful life of the improvements. The useful lives of the assets are generally as follows: Buildings 40 years Leasehold improvements 2 to 10 years Software 3 to 5 years Machinery and equipment 2 to 5 years Expenditures for maintenance and repairs are charged to expense as incurred. Cost and accumulated depreciation of assets sold or retired are removed from the respective property accounts, and any gain or loss is reflected in the consolidated statements of operations. Impairment of Long-Lived Assets We evaluate long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying value of an asset may not be recoverable. Impairment is considered to exist if the total estimated future cash flows on an undiscounted basis are less than the carrying amount of the assets. If impairment exists, the impairment loss is measured and recorded based on discounted estimated future cash flows. In estimating future cash flows, assets are grouped at the lowest levels for which there are identifiable cash flows that are largely independent of cash flows from other asset groups. Our estimate of future cash flows is based upon, among other things, certain assumptions about expected future operating performance, growth rates and other factors. The actual cash flows realized from these assets may vary significantly from our estimates due to increased competition, changes in technology, fluctuations in demand, consolidation of our customers, reductions in average selling prices and other factors. Assumptions underlying future cash flow estimates are therefore subject to significant risks and uncertainties. Warranties On product sales, we provide for future warranty costs upon product delivery. The specific terms and conditions of those warranties vary depending upon the product sold and the country in which we do business. In the case of products sold by us, our warranties generally start from the delivery date and continue for one Many of our products are manufactured to customer specifications and their acceptance is based on meeting those specifications. Factors that affect our warranty liabilities include the number of product units subject to warranty protection, historical experience and management’s judgment regarding anticipated rates of warranty claims and cost per claim. We assess the adequacy of our recorded warranty liabilities every quarter and make adjustments to the liabilities as necessary. Noncontrolling Interests A noncontrolling interest represents the equity interest in a subsidiary that is not attributable, either directly or indirectly, to Aviat Networks and is reported as our equity, separately from our controlling interests. The noncontrolling interests related to our ownership interest in a subsidiary company in South Africa with a local partner, where we were the majority owner at 51% prior to our acquisition of the remaining interest of this subsidiary in the fourth quarter of 2018. Revenues, expenses, gains, losses, net loss and other comprehensive income (loss) are reported in the consolidated financial statements at the consolidated amounts, which include the amounts attributable to both the controlling and noncontrolling interests. During the fourth quarter of fiscal year 2018, we acquired the remaining interest of this subsidiary for $0.6 million which was recorded as “Accrued expenses” on our consolidated balance sheets as of June 29, 2018. This amount was fully paid during fiscal 2019. Leases On June 29, 2019, the first day of our fiscal 2020, we adopted ASC 842 using the modified retrospective transition method, which requires a cumulative-effect adjustment, if any, to the opening balance of accumulated deficit to be recognized on the date of adoption with prior periods not restated. We lease facilities under non-cancelable operating lease agreements. These leases have varying terms that range from one We determine if an arrangement contains a lease at inception. These operating leases are included in Right of use assets (ROU assets) on our July 3, 2020 consolidated balance sheets and represent our right to use the underlying asset for the lease term. Our obligation to make lease payments are included in "Short-term lease liabilities" and "Long-term lease liabilities" on our July 3, 2020 consolidated balance sheets. We did not enter into any finance leases during fiscal 2020. Operating lease ROU assets and lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. As most of our leases do not provide an implicit rate, we used the incremental borrowing rate based on the remaining lease term at commencement date in determining the present value of future payments. The operating lease ROU assets also include any lease payments made and exclude lease incentives and initial direct costs incurred. Variable lease payments are expensed as incurred and are not included within the ROU asset and lease liability calculation. Lease expense for minimum lease payments is recognized on a straight-line basis over the lease term. Certain of our lease arrangements include non-lease components and we account for non-lease components together with lease components for all such lease arrangements. Leases with an initial term of 12 months or less are not recorded on our balance sheet. We recognize lease expense for these leases on a straight-line basis over the lease term. Foreign Currency Translation The functional currency of our subsidiaries located in the United Kingdom, Singapore, Mexico, Algeria and New Zealand is the United States (“U.S.”) dollar. Determination of the functional currency is dependent upon the economic environment in which an entity operates as well as the customers and suppliers the entity conducts business with. Changes in facts and circumstances may occur which could lead to a change in the functional currency of that entity. Accordingly, all of the monetary assets and liabilities of these subsidiaries are re-measured into U.S. dollars at the current exchange rate as of the applicable balance sheet date, and all non-monetary assets and liabilities are re-measured at historical rates. Income and expenses are re-measured at the average exchange rate prevailing during the period. Gains and losses resulting from the re-measurement of these subsidiaries’ financial statements are included in the consolidated statements of operations. Our other international subsidiaries use their respective local currency as their functional currency. Assets and liabilities of these subsidiaries are translated at the local current exchange rates in effect at the balance sheet date, and income and expense accounts are translated at the average exchange rates during the period. The resulting translation adjustments are included in accumulated other comprehensive loss. Gains and losses resulting from foreign exchange transactions and revaluation of monetary assets and liabilities in non-functional currencies are included in either cost of product sales and services or other (expense) income, net in the accompanying consolidated statements of operations, based on the nature of the transactions. Net foreign exchange gain (loss) recorded in our consolidated statements of operations during fiscal 2020, 2019 and 2018 was as follows: Fiscal Year (In thousands) 2020 2019 2018 Amount included in costs of revenues $ 419 $ (664) $ 402 Amount included in other (expense) income, net — — (188) Total foreign exchange gain (loss), net $ 419 $ (664) $ 214 Retirement Benefits As of July 3, 2020, we provided retirement benefits to substantially all employees primarily through our defined contribution retirement plans. These plans have matching and savings elements. Contributions by us to these retirement plans are based on profits and employees’ savings with no other funding requirements. Contributions to retirement plans are expensed as incurred. Retirement plan expense amounted to $1.7 million, $2.0 million and $1.9 million in fiscal 2020, 2019 and 2018, respectively. Revenue Recognition Effective June 30, 2018, we adopted Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 606, using the modified retrospective method applied to those contracts that were not completed as of June 29, 2018. Results for the reporting periods after June 29, 2018 are presented under ASC 606, while prior period amounts are not adjusted and continue to be reported in accordance with our historical accounting under ASC 605. We recognize revenue by applying the following five-step approach: (1) identification of the contract with a customer; (2) identification of the performance obligations in the contract; (3) determination of the transaction price; (4) allocation of the transaction price to the performance obligations in the contract; and (5) recognition of revenue when, or as, we satisfy a performance obligation. Revenue from product sales, recognized at a point-in-time, is generated predominately from the sales of products manufactured by third-party manufacturers to whom we have outsourced our manufacturing processes. Printed circuit assemblies, mechanical housings, and packaged modules are manufactured by contract manufacturing partners, with periodic business reviews of material levels and obsolescence. Product assembly, product testing, complete system integration, and system testing may either be performed within our own facilities or at the locations of our third-party manufacturers. Revenue from services includes certain network planning and design, engineering, installation and commissioning, extended warranty, customer support, consulting, training, and education. Maintenance and support services are generally offered to our customers and recognized over a specified period of time and from sales and subsequent renewals of maintenance and support contracts. The network planning and design, engineering and installation related services noted are recognized based on an over-time recognition model using the cost-input method. Revenues related to certain contracts for customized network solutions are recognized over time using the cost input method. In using the cost input method, we generally apply the cost-to-cost method of accounting where sales and profits are recorded based on the ratio of costs incurred to estimated total costs at completion. Recognition of profit on these contracts requires estimates of the total contract value, the total cost at completion, and the measurement of progress towards completion. Significant judgment is required when estimating total contract costs and progress to completion on the arrangements, as well as whether a loss is expected to be incurred on the contract. If circumstances arise that change the original estimates of revenues, costs, or extent of progress toward completion, revisions to the estimates are made. These revisions may result in increases or decreases in estimated revenues or costs, and such revisions are reflected in income in the period in which the circumstances that gave rise to the revision become known to us. We perform ongoing profitability analysis of our service contracts accounted for under this method in order to determine whether the latest estimates of revenues, costs, and profits require updating. If at any time these estimates indicate that the contract will be unprofitable, the entire estimated loss for the remainder of the contract is recorded immediately. We establish billing terms at the time project deliverables and milestones are agreed. Revenues recognized in excess of the amounts invoiced to clients are classified as unbilled receivables on our consolidated balance sheet. Contracts and customer purchase orders are used to determine the existence of an arrangement. In addition, shipping documents and customer acceptances, when applicable, are used to verify delivery and transfer of control. We typically satisfy our performance obligations upon shipment or delivery of product depending on the contractual terms. Payment terms to customers generally range from net 30 to 120 days from invoice, which are considered to be standard payment terms. We assess our ability to collect from our customers based primarily on the creditworthiness and past payment history of the customer. While our customers generally do not have the right of return, we reserve for estimated product returns as an offset to revenue based primarily on historical trends. Actual product returns may be different than what was estimated. These factors and unanticipated changes in economic and industry condition could make actual results differ from our return estimates. Cost of Product Sales and Services Cost of sales consists primarily of materials, labor and overhead costs incurred internally and amounts incurred for contract manufacturers to produce our products, personnel and other implementation costs incurred to install our products and train customer personnel, and customer service and third party original equipment manufacturer costs to provide continuing support to our customers. Shipping and handling costs are included as a component of costs of product sales in our consolidated statements of operations because they are also included in revenue that we bill our customers. Advertising Costs We expense all advertising costs as incurred. Advertising costs were immaterial during fiscal 2020, 2019 and 2018. Presentation of Transactional Taxes Collected from Customers and Remitted to Government Authorities We present transactional taxes such as sales and use tax collected from customers and remitted to governmental authorities on a net basis. Research and Development Costs Our research and development costs, which include costs in connection with new product development, improvement of existing products, process improvement, and product use technologies, are generally charged to operations in the period in which they are incurred. For certain of our software projects under development, we capitalize the development costs during the period between determining technological feasibility of the product and commercial release. We amortize the capitalized development cost upon commercial release, generally over three years. To date, the amount of development costs capitalized have not been material. Share-Based Compensation We estimate the grant date fair value of our share-based awards and amortize this fair value to compensation expense over the requisite service period or vesting term. To estimate the fair value of our stock option awards, we use the Black-Scholes option pricing model. The determination of the fair value of stock option awards on the date of grant using an option pricing model is affected by our stock price as well as assumptions regarding a number of complex and subjective variables. These variables include our expected stock price volatility over the expected term of the awards, actual and projected employee stock option exercise behaviors, risk-free interest rate and expected dividends. Due to the inherent limitations of option valuation models, including consideration of future events that are unpredictable and the estimation process utilized in determining the valuation of the share-based awards, the ultimate value realized by our employees may vary significantly from the amounts expensed in our financial statements. For restricted stock awards and units and performance share awards and units, we measure the grant date fair value based upon the market price of our common stock on the date of the grant. The fair value of each market-based stock unit with market conditions was estimated using the Monte-Carlo simulation model. We elected to account for forfeitures as they occur. We generally recognize compensation cost for share-based payment awards on a straight-line basis over the requisite service period. For an award that has a graded vesting schedule, compensation expense is recognized on a straight-line basis over the requisite service period for each separately vesting portion of the award as if the award was, in-substance, multiple awards. The amount of compensation cost recognized at any date must at least equal the portion of the grant-date value of the award that is vested at that date. For awards with a performance condition vesting feature, we recognize share-based compensation costs for the performance awards and units when achievement of the performance conditions is considered probable. Any previously recognized compensation cost would be reversed if the performance condition is not satisfied or if it is not probable that the performance conditions will be achieved. For awards with a market condition vesting feature, we recognize share-based compensation costs over the period the requisite service is rendered, regardless of when, if ever, the market condition is satisfied. Restructuring Charges Our restructuring charges represent expenses incurred in connection with certain cost reduction programs that we have implemented, and consisted of the costs of employee termination costs, lease and other contract termination charges and other costs of exiting activities or geographies. A liability for costs associated with an exit or disposal activity is measured at its fair value when the liability is incurred. Expenses for one-time termination benefits are recognized at the date we notify the employee, unless the employee must provide future service, in which case the benefits are expensed ratably over the future service period. We recognize severance benefits provided as part of an ongoing benefit arrangement when the payment is probable, and the amounts can be reasonably estimated. Liabilities related to termination of an operating lease or contract are measured and recognized at fair value when the contract does not have any future economic benefit to the entity and the fair value of the liability is determined based on the present value of the remaining lease obligations, adjusted for the effects of deferred items recognized under the lease, and reduced by estimated sublease rentals that could be reasonably obtained for the property. The assumptions in determining such estimates include anticipated timing of sublease rentals and estimates of sublease rental receipts and related costs based on market conditions. We expense all other costs related to an exit or disposal activity as incurred. Income Taxes and Related Uncertainties We account for income taxes under the asset and liability method. Deferred tax assets and liabilities are determined based on the estimated future tax effects of temporary differences between the financial statement and tax basis of assets and liabilities, as measured by tax rates at which temporary differences are expected to reverse as well as operating loss and tax credit carry forwards. Deferred tax expense (benefit) is the result of changes in deferred tax assets and liabilities. A valuation allowance is established to offset any deferred tax assets if, based upon the available information, it is more likely than not that some or all of the deferred tax assets will not be realized. We are required to compute our income taxes in each federal, state, and international jurisdiction in which we operate. This process requires that we estimate the current tax exposure as well as assess temporary differences between the accounting and tax treatment of assets and liabilities, including items such as accruals and allowances not currently deductible for tax purposes as well as operating loss and tax credit carry forwards. The income tax effects of the differences we identify are classified as current or long-term deferred tax assets and liabilities in our consolidated balance sheets. Our judgments, assumptions, and estimates relative to the current provision for income taxes take into account current tax laws, our interpretation of current tax laws, and possible outcomes of current and future audits conducted by foreign and domestic tax authorities. Changes in tax laws or our interpretation of tax laws and the resolution of current and future tax audits could significantly impact the amounts provided for income taxes in our consolidated balance sheets and consolidated statements of operations. We must also assess the likelihood that deferred tax assets will be realized from future taxable income and, based on this assessment, establish a valuation allowance, if required. Our determination of our valuation allowance is based upon a number of assumptions, judgments, and estimates, including forecasted earnings, future taxable income, and the relative proportions of revenue and income before taxes in the various domestic and international jurisdictions in which we operate. To the extent we establish a valuation allowance or change the valuation allowance in a period, we reflect the change with a corresponding increase or decrease to our tax provision in our consolidated statements of operations. We use a two-step process to determine the amount of tax benefit to be recognized for uncertain tax positions. The first step is to evaluate the tax position for recognition by determining if the weight of available evidence indicates that it is more likely than not that the position will be s |