Recent Accounting Pronouncements	12 Months Ended
Apr. 01, 2017
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements Adopted accounting pronouncements: In January 2017, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2017-04, Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment in order to simplify the accounting for goodwill impairment where step two was required in the past. In place of step two, companies will recognize an impairment loss equal to the amount by which the carrying value exceeds the implied fair value; not to exceed the total amount of goodwill allocated to the reporting unit. The Company elected to early adopt ASU 2017-04 on a prospective basis as of January 1, 2017, and incurred a non-cash Goodwill impairment charge of $7.4 million. See Note 11 "Goodwill" for more details. In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230) Restricted Cash (a consensus of the FASB Emerging Issues Task Force), which provides specific guidance for classifying and presenting changes in restricted cash and restricted cash equivalents on the statement of cash flows due to transfers or transactions in order to reduce the diversity in practice. The Company elected to early adopt ASU 2016-18 and included restricted cash of $1.1 million in end of period cash, cash equivalents, and restricted cash in the statement of cash flows. In August 2014, the FASB issued ASU 2014-15, Presentation of Financial Statements—Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern, which provides guidance on determining when and how to disclose going-concern uncertainties in the financial statements. The standard requires management to perform interim and annual assessments of an entity's ability to continue as a going concern within one year of the date of issuance of the entity's financial statements and provide certain disclosure if conditions or events raise substantial doubt about the entity's ability to continue as a going concern. The Company adopted ASU 2014-15 in the fourth quarter of 2017, and it did not have any effect on the Company's disclosures. Recently issued accounting pronouncements not yet adopted In May 2017, FASB issued ASU 2017-09, Compensation—Stock Compensation (Topic 718): Scope of Modification Accounting, which amends the scope of modification accounting surrounding share-based payment arrangements as issued in ASU 2016-09 by providing guidance on the various types of changes which would trigger modification accounting for share-based payment awards. ASU 2017-09 is effective for annual periods beginning after December 15, 2017, and interim periods within those annual periods, which would be the Company's fiscal year ending March 30, 2019. Early adoption is permitted, including adoption in any interim period, for public business entities for reporting periods for which financial statements have not yet been issued. While the Company does not expect the adoption of ASU 2017-09 to have a material effect on its business, the Company is still evaluating any potential impact that adoption of ASU 2017-09 may have on its financial position, results of operations or cash flows. In March 2017, the FASB issued ASU 2017-07, Compensation—Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, which requires companies to disaggregate the current-service-cost component from other components of net benefit cost and provides specific guidance for presentation in the income statement. ASU 2017-07 is effective for annual periods beginning after December 15, 2017, and interim periods within those annual periods, which would be the Company's fiscal year ending March 30, 2019. Early adoption is permitted as of the beginning of an annual period for which financial statements (interim or annual) have not been issued or made available for issuance. While the Company does not expect the adoption of ASU 2017-07 to have a material effect on its business, the Company is still evaluating any potential impact that adoption of ASU 2017-07 may have on its financial position, results of operations or cash flows. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers: Topic 606 (ASU 2014-09), to supersede nearly all existing revenue recognition guidance under U.S. GAAP. The core principle of ASU 2014-09 is to recognize revenues when promised goods or services are transferred to customers in an amount that reflects the consideration that is expected to be received for those goods or services. In August 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers: Deferral of the Effective Date, which deferred the effective date for implementation of ASU 2014-09 by one year, making the new guidance effective for annual reporting periods beginning after December 15, 2017, with early adoption permitted no earlier than the original effective date. The FASB has continued to issue ASU topics to further clarify ASU 2014-09. These have included ASU 2016-08, ASU 2016-10, ASU 2016-12, and ASU 2016-20. The effective date and transition requirements of these ASU topics are the same as the effective date and transition requirements of ASU 2015-14. The new standards are effective for the Company's fiscal year ending March 30, 2019, beginning with the first quarter of that fiscal year. The new standard permits adoption by using either (i) a full retrospective approach for all periods presented in the period of adoption or (ii) a modified retrospective approach with the cumulative effect of initially applying the new standard recognized at the date of initial application and providing certain additional disclosures. The Company has not yet finalized which transition method will be used; however, at this time it expects to adopt the modified retrospective approach. The final determination of the transition method depends on a number of factors including the impact on comparability, the ability to support related disclosures, and the overall nature and significance of the associated changes to the financial statements. The Company has developed an implementation plan and assigned cross-functional internal resources to perform a comprehensive assessment of the new standard and its impact on the financial statements of the Company. This assessment is ongoing and includes identification, consideration, and quantification of the impact of the new standard on the Company's financial statements, accounting policies, processes, control environment and systems. The outcome of this evaluation will be the implementation of supporting processes and systems that enable timely and accurate reporting under the new standard as well as the determination of which transition method is most appropriate. While the Company continues to assess all potential impacts under the new standard, a preliminary assessment would indicate that the new standard is unlikely to drive a significant change to the amount or timing of revenue recognition related to system sales or service contracts, the Company’s major revenue streams. The Company believes that certain aspects of the new guidance will require significant judgment, including identification of relevant performance obligations and quantification of the consideration to which the entity expects to be entitled in exchange for those goods or services. Further, in connection with the adoption of the standard, the Company expects to be required to capitalize certain costs, primarily commission expense to sales representatives, and amortize such costs over the period of performance for the underlying contracts. The Company is still evaluating the impact of capitalizing costs to execute a contract, which it expects to primarily affect commissions on service contracts as these contracts frequently have a duration approximating or exceeding one year; however, this impact is not expected to be significant. This preliminary assessment is based on the Company's hypothetical analysis of actual historical revenue transactions under the new guidance and presumes certain conclusions as it relates to accounting policies under the new standard. Due to the complexity of certain of our contracts, the actual revenue recognition treatment required under the new standard for these arrangements may be dependent on contract-specific terms and may vary from this overall expectation. The Company currently expects that necessary operational changes will be implemented prior to the adoption date. As the Company’s assessment of the new standard’s impacts is ongoing, including the areas described above, the Company cannot reasonably provide further estimates of the quantitative impacts to its financial statements at this time. In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory, to improve and simplify the accounting for the income tax consequences of intra-entity transfers of assets other than inventory, requiring companies to recognize income tax consequences upon the transfer of the asset to a third party. ASU 2016-16 is effective for annual periods beginning after December 15, 2017, and interim periods within those annual periods, which would be the Company's fiscal year ending March 30, 2019. While the Company does not expect the adoption of ASU 2016-16 to have a material effect on its business, the Company is still evaluating any potential impact that adoption of ASU 2016-16 may have on its financial position, results of operations or cash flows. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230) Classification of Certain Cash Receipts and Cash Payments, which will make eight targeted changes to how cash receipts and cash payments are presented and classified in the statement of cash flows. While the Company does not expect the adoption of ASU 2016-15 to have a material effect on its business, the Company is still evaluating any potential impact that adoption of ASU 2016-15 may have on its financial position, results of operations or cash flows. In March 2016, the FASB issued ASU 2016-09, Compensation – Stock Compensation – Improvements to Employee Share-Based Payment Accounting. ASU 2016-09 simplifies the accounting for several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities and classification on the statement of cash flows. ASU 2016-09 is effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods, which would be the Company's fiscal year ending March 31, 2018. While the Company does not expect the adoption of ASU 2016-09 to have a material effect on its business, the Company is still evaluating any potential impact that adoption of ASU 2016-09 may have on its financial position, results of operations or cash flows. In February 2016, the FASB issued ASU 2016-02, Leases. ASU 2016-02 increases transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and requires disclosing key information about leasing arrangements. ASU 2016-02 is effective for annual periods beginning after December 15, 2018 and interim periods within those annual periods, which would be the Company's fiscal year ending March 28, 2020. The Company is still evaluating any potential impact that adoption of ASU 2016-02 may have on its financial position, results of operations or cash flows.

Recent Accounting Pronouncements

Adopted accounting pronouncements:

In January 2017, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2017-04, Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment in order to simplify the accounting for goodwill impairment where step two was required in the past. In place of step two, companies will recognize an impairment loss equal to the amount by which the carrying value exceeds the implied fair value; not to exceed the total amount of goodwill allocated to the reporting unit. The Company elected to early adopt ASU 2017-04 on a prospective basis as of January 1, 2017, and incurred a non-cash Goodwill impairment charge of $7.4 million. See Note 11 "Goodwill" for more details.

In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230) Restricted Cash (a consensus of the FASB Emerging Issues Task Force), which provides specific guidance for classifying and presenting changes in restricted cash and restricted cash equivalents on the statement of cash flows due to transfers or transactions in order to reduce the diversity in practice. The Company elected to early adopt ASU 2016-18 and included restricted cash of $1.1 million in end of period cash, cash equivalents, and restricted cash in the statement of cash flows.

In August 2014, the FASB issued ASU 2014-15, Presentation of Financial Statements—Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern, which provides guidance on determining when and how to disclose going-concern uncertainties in the financial statements. The standard requires management to perform interim and annual assessments of an entity's ability to continue as a going concern within one year of the date of issuance of the entity's financial statements and provide certain disclosure if conditions or events raise substantial doubt about the entity's ability to continue as a going concern. The Company adopted ASU 2014-15 in the fourth quarter of 2017, and it did not have any effect on the Company's disclosures.

Recently issued accounting pronouncements not yet adopted

In May 2017, FASB issued ASU 2017-09, Compensation—Stock Compensation (Topic 718): Scope of Modification Accounting, which amends the scope of modification accounting surrounding share-based payment arrangements as issued in ASU 2016-09 by providing guidance on the various types of changes which would trigger modification accounting for share-based payment awards. ASU 2017-09 is effective for annual periods beginning after December 15, 2017, and interim periods within those annual periods, which would be the Company's fiscal year ending March 30, 2019. Early adoption is permitted, including adoption in any interim period, for public business entities for reporting periods for which financial statements have not yet been issued. While the Company does not expect the adoption of ASU 2017-09 to have a material effect on its business, the Company is still evaluating any potential impact that adoption of ASU 2017-09 may have on its financial position, results of operations or cash flows.

In March 2017, the FASB issued ASU 2017-07, Compensation—Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, which requires companies to disaggregate the current-service-cost component from other components of net benefit cost and provides specific guidance for presentation in the income statement. ASU 2017-07 is effective for annual periods beginning after December 15, 2017, and interim periods within those annual periods, which would be the Company's fiscal year ending March 30, 2019. Early adoption is permitted as of the beginning of an annual period for which financial statements (interim or annual) have not been issued or made available for issuance. While the Company does not expect the adoption of ASU 2017-07 to have a material effect on its business, the Company is still evaluating any potential impact that adoption of ASU 2017-07 may have on its financial position, results of operations or cash flows.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers: Topic 606 (ASU 2014-09), to supersede nearly all existing revenue recognition guidance under U.S. GAAP. The core principle of ASU 2014-09 is to recognize revenues when promised goods or services are transferred to customers in an amount that reflects the consideration that is expected to be received for those goods or services. In August 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers: Deferral of the Effective Date, which deferred the effective date for implementation of ASU 2014-09 by one year, making the new guidance effective for annual reporting periods beginning after December 15, 2017, with early adoption permitted no earlier than the original effective date. The FASB has continued to issue ASU topics to further clarify ASU 2014-09. These have included ASU 2016-08, ASU 2016-10, ASU 2016-12, and ASU 2016-20. The effective date and transition requirements of these ASU topics are the same as the effective date and transition requirements of ASU 2015-14. The new standards are effective for the Company's fiscal year ending March 30, 2019, beginning with the first quarter of that fiscal year.

The new standard permits adoption by using either (i) a full retrospective approach for all periods presented in the period of adoption or (ii) a modified retrospective approach with the cumulative effect of initially applying the new standard recognized at the date of initial application and providing certain additional disclosures. The Company has not yet finalized which transition method will be used; however, at this time it expects to adopt the modified retrospective approach. The final determination of the transition method depends on a number of factors including the impact on comparability, the ability to support related disclosures, and the overall nature and significance of the associated changes to the financial statements. The Company has developed an implementation plan and assigned cross-functional internal resources to perform a comprehensive assessment of the new standard and its impact on the financial statements of the Company. This assessment is ongoing and includes identification, consideration, and quantification of the impact of the new standard on the Company's financial statements, accounting policies, processes, control environment and systems. The outcome of this evaluation will be the implementation of supporting processes and systems that enable timely and accurate reporting under the new standard as well as the determination of which transition method is most appropriate.

While the Company continues to assess all potential impacts under the new standard, a preliminary assessment would indicate that the new standard is unlikely to drive a significant change to the amount or timing of revenue recognition related to system sales or service contracts, the Company’s major revenue streams. The Company believes that certain aspects of the new guidance will require significant judgment, including identification of relevant performance obligations and quantification of the consideration to which the entity expects to be entitled in exchange for those goods or services. Further, in connection with the adoption of the standard, the Company expects to be required to capitalize certain costs, primarily commission expense to sales representatives, and amortize such costs over the period of performance for the underlying contracts. The Company is still evaluating the impact of capitalizing costs to execute a contract, which it expects to primarily affect commissions on service contracts as these contracts frequently have a duration approximating or exceeding one year; however, this impact is not expected to be significant. This preliminary assessment is based on the Company's hypothetical analysis of actual historical revenue transactions under the new guidance and presumes certain conclusions as it relates to accounting policies under the new standard. Due to the complexity of certain of our contracts, the actual revenue recognition treatment required under the new standard for these arrangements may be dependent on contract-specific terms and may vary from this overall expectation. The Company currently expects that necessary operational changes will be implemented prior to the adoption date. As the Company’s assessment of the new standard’s impacts is ongoing, including the areas described above, the Company cannot reasonably provide further estimates of the quantitative impacts to its financial statements at this time.

In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory, to improve and simplify the accounting for the income tax consequences of intra-entity transfers of assets other than inventory, requiring companies to recognize income tax consequences upon the transfer of the asset to a third party. ASU 2016-16 is effective for annual periods beginning after December 15, 2017, and interim periods within those annual periods, which would be the Company's fiscal year ending March 30, 2019. While the Company does not expect the adoption of ASU 2016-16 to have a material effect on its business, the Company is still evaluating any potential impact that adoption of ASU 2016-16 may have on its financial position, results of operations or cash flows.

In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230) Classification of Certain Cash Receipts and Cash Payments, which will make eight targeted changes to how cash receipts and cash payments are presented and classified in the statement of cash flows. While the Company does not expect the adoption of ASU 2016-15 to have a material effect on its business, the Company is still evaluating any potential impact that adoption of ASU 2016-15 may have on its financial position, results of operations or cash flows.

In March 2016, the FASB issued ASU 2016-09, Compensation – Stock Compensation – Improvements to Employee Share-Based Payment Accounting. ASU 2016-09 simplifies the accounting for several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities and classification on the statement of cash flows. ASU 2016-09 is effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods, which would be the Company's fiscal year ending March 31, 2018. While the Company does not expect the adoption of ASU 2016-09 to have a material effect on its business, the Company is still evaluating any potential impact that adoption of ASU 2016-09 may have on its financial position, results of operations or cash flows.

In February 2016, the FASB issued ASU 2016-02, Leases. ASU 2016-02 increases transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and requires disclosing key information about leasing arrangements. ASU 2016-02 is effective for annual periods beginning after December 15, 2018 and interim periods within those annual periods, which would be the Company's fiscal year ending March 28, 2020. The Company is still evaluating any potential impact that adoption of ASU 2016-02 may have on its financial position, results of operations or cash flows.