The Company and Basis of Presentation (Policies)	9 Months Ended
The Company and Basis of Presentation (Policies)	Mar. 29, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited Condensed Consolidated Financial Statements have been prepared in accordance with generally accepted accounting principles in the United States (U.S. GAAP) and with the rules and regulations of the Securities and Exchange Commission (SEC) for interim financial information. Accordingly, the statements do not include all information and footnotes required by U.S. GAAP for annual consolidated financial statements. In the opinion of our management, such interim financial statements reflect all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation of financial position, results of operations and cash flows for such periods. The results for the three and nine months ended March 29, 2019 are not necessarily indicative of the results that may be expected for the full fiscal year or future operating periods. The information included in this Quarterly Report on Form 10-Q should be read in conjunction with “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and the Consolidated Financial Statements and footnotes thereto included in our Annual Report on Form 10-K for the fiscal year ended June 29, 2018. The unaudited Condensed Consolidated Financial Statements include the accounts of the Company and its wholly-owned and majority-owned subsidiaries. All intercompany transactions and accounts have been eliminated. We operate on a 52-week or 53-week year ending on the Friday closest to June 30. The first three quarters of fiscal 2019 and fiscal 2018 included 13 weeks in each quarter. Fiscal year 2019 will be comprised of 52 weeks and will end on June 28, 2019
Use of Estimates	Use of Estimates The preparation of unaudited condensed consolidated financial statements in accordance with 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.
Accounting Standards Adopted and Accounting Standards Not Yet Adopted	Accounting Standards Adopted In May 2014, the Financial Accounting Standards Board (FASB) issued ASC 606 which supersedes nearly all current U.S. GAAP guidance on this topic and eliminates industry-specific guidance. Revenue recognition under ASC 606 depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Additional disclosures are required to enable users to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. In addition, the FASB amended its guidance related to the capitalization and amortization of the incremental costs of obtaining a contract with a customer. The new revenue standard may be applied retrospectively to each prior period presented or retrospectively with the cumulative effect recognized in retained earnings as of the date of adoption. We adopted ASC 606 using the modified retrospective method as of June 30, 2018 with the cumulative effect recognized as an adjustment to the opening balance of our accumulated deficit (net of tax). Prior periods have not been retroactively adjusted and will continue to be reported under the accounting standards in effect for those periods. See Note 3, “Revenue Recognition” to the Notes to unaudited Condensed Consolidated Financial Statements for more information. In January 2016, the FASB issued ASU 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities. This guidance retains the current accounting for classifying and measuring investments in debt securities and loans but requires equity investments to be measured at fair value with subsequent changes recognized in net income, except for those accounted for under the equity method or requiring consolidation. The guidance also changes the accounting for investments without a readily determinable fair value and do not qualify for the practical expedient to estimate fair value. A policy election can be made for these investments whereby estimated fair value may be measured at cost and adjusted in subsequent periods for any impairment or changes in observable prices of identical or similar investments. This ASU is effective for fiscal years beginning after December 15, 2017. We adopted this update during the first quarter of fiscal 2019. The adoption had no material impact on our unaudited Condensed Consolidated Financial Statements. In August 2018, the SEC adopted the final rule under SEC Release No. 33-10532, Disclosure Update and Simplification, amending certain disclosure requirements that were redundant, duplicative, overlapping, outdated or superseded. In addition, the amendments expanded the disclosure requirements on the analysis of stockholders’ equity for interim financial statements. Under the amendments, an analysis of changes in each caption of stockholders’ equity presented in the balance sheet must be provided in a note or separate statement. The analysis should present a reconciliation of the beginning balance to the ending balance of each period for which a statement of comprehensive income is required to be filed. We adopted this update during the first quarter of fiscal 2019. For our first presentation of changes in stockholders’ equity, see our unaudited Condensed Consolidated Statements of Equity included in this Form 10-Q for the quarter ended March 29, 2019. Accounting Standards Not Yet Adopted In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) and subsequent amendments to the initial guidance: ASU 2018-10, Codification Improvements to Topic 842, Leases, and ASU 2018-11, Leases (Topic 842) Targeted Improvements, each issued in July 2018, as well as ASU 2019-01, Leases (Topic 842) Codification Improvements issued in March 2019 (collectively, Topic 842), all of which provides guidance on the recognition, measurement, presentation, and disclosure of leases. Topic 842 requires the recognition of lease assets and lease liabilities by lessees for those leases classified as operating leases under previous guidance. This standard will become effective for fiscal years beginning after December 15, 2018 including interim periods within those years, with early adoption permitted. The recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee have not significantly changed from previous guidance. Although we are currently evaluating the impact the pronouncement will have on our unaudited Condensed Consolidated Financial Statements and related disclosures, we expect that most of our operating lease commitments will be subject to the new standard and recognized as operating lease liabilities and right-of-use assets upon adoption. In June 2018, the FASB issued ASU 2018-07, Compensation-Stock Compensation: Improvement to Nonemployees Share-Based Payment Accounting (ASU 2018-07), which expands the scope of Topic 718 to include all share-based payment transactions for acquiring goods and services from nonemployees. ASU 2018-07 specifies that Topic 718 applies to all share-based payment transactions in which the grantor acquires goods and services to be used or consumed in its own operations by issuing share-based payment awards. ASU 2018-07 also clarifies that Topic 718 does not apply to share-based payments used to effectively provide (1) financing to the issuer or (2) awards granted in conjunction with selling goods or services to customers as part of a contract accounted for under ASC 606. ASU 2018-07 will be effective for fiscal years beginning after December 15, 2018, including interim periods within those years, with early adoption permitted. We do not expect the adoption of this guidance will have a material impact on our unaudited Condensed Consolidated Financial Statements. In August 2018, the FASB issued ASU 2018-15, Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That is a Service Contract. This guidance aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. This standard will become effective for interim and annual periods beginning after December 15, 2019, with early adoption permitted. The standard can be adopted either using the prospective or retrospective transition approach. We are evaluating the effect the adoption of the standard will have on our unaudited Condensed Consolidated Financial Statements.
Net Income (Loss) Per Share of Common Stock	Net income (loss) per share is computed using the two-class method, by dividing net income attributable to us by the weighted-average number of shares of our outstanding common stock and participating securities outstanding. Our restricted shares contain rights to receive non-forfeitable dividends and therefore are considered to be participating securities and included in the calculations of net income per basic and diluted common share. Undistributed losses are not allocated to unvested restricted shares as the unvested restricted shares are not contractually obligated to share our losses. The impact on earnings per share of the participating securities under the two-class method was immaterial.
Revenue Recognition	Effective June 30, 2018, we adopted 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 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 installation, extended warranty, customer support, consulting, training, and education. Maintenance and support services are generally offered to our customers over a specified period of time and from sales and subsequent renewals of maintenance and support contracts. The 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 this 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 by the Company. 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 the unaudited Condensed 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 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. We present transactional taxes such as sales and use tax collected from customers and remitted to government authorities on a net basis.
Fair Value Policy	Our policy is to recognize asset or liability transfers among Level 1, Level 2, and Level 3 as of the actual date of the events or change in circumstances that caused the transfer. During the first nine months of fiscal 2019 and 2018, we had no transfers between levels of the fair value hierarchy of our assets or liabilities measured at fair value. We classify items within Level 1 if quoted prices are available in active markets. Our Level 1 items mainly are money market funds. As of March 29, 2019 and June 29, 2018, these money market funds were valued at $1.00 net asset value per share. We classify items in Level 2 if the observable inputs to quoted market prices, benchmark yields, reported trades, broker/dealer quotes, or alternative pricing sources are available with reasonable levels of price transparency. Our bank certificates of deposit and foreign exchange forward contracts are classified within Level 2. Foreign currency forward contracts are measured at fair value using observable foreign currency exchange rates. The changes in fair value related to our foreign currency forward contracts were recorded in cost of revenues on our unaudited Condensed Consolidated Statements of Operations.