Electro Scientific Industries (ESIO) 10-Q 8 Feb 17 2017 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Dec. 31, 2016	Feb. 03, 2017
Document And Entity Information [Abstract]
Entity Common Stock, Shares Outstanding		32,670,422
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Dec. 31, 2016
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q3
Entity Registrant Name	ELECTRO SCIENTIFIC INDUSTRIES INC
Entity Central Index Key	726,514
Current Fiscal Year End Date	--04-01
Entity Well-know Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2016	Apr. 02, 2016
Current assets:
Cash and cash equivalents	$ 44,891	$ 42,413
Short-term investments	6,301	15,252
Accounts Receivable, Net, Current	27,644	42,770
Inventories	58,830	60,470
Shipped systems pending acceptance	3,983	1,181
Other current assets	5,903	5,340
Total current assets	147,552	167,426
Non-current assets:
Property, plant and equipment, net	23,660	24,543
Non-current deferred income taxes, net	836	914
Goodwill	9,352	7,445
Acquired intangible assets, net	9,611	7,146
Other assets	17,025	12,626
Total assets	208,036	220,100
Current liabilities:
Accounts payable	14,345	16,061
Accrued liabilities	16,015	18,334
Deferred revenue	10,822	6,373
Total current liabilities	41,182	40,768
Non-current liabilities:
Non-current income taxes payable	1,048	1,266
Deferred Tax Liabilities, Net, Noncurrent	218	234
Liabilities, Other than Long-term Debt, Noncurrent	6,085	7,801
Liabilities	48,533	50,069
Commitments and Contingencies
Shareholders' equity:
Preferred stock, without par value	0	0
Common stock, without par value	204,859	195,024
Retained earnings	(43,485)	(23,998)
Accumulated other comprehensive income	(1,871)	(995)
Total shareholders' equity	159,503	170,031
Total liabilities and shareholders' equity	$ 208,036	$ 220,100

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2016	Apr. 02, 2016
Statement of Financial Position [Abstract]
Trade receivables, allowances	$ 685	$ 1,039
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	111,811	107,910
Finite-Lived Intangible Assets, Accumulated Amortization	$ 21,979	$ 21,146
Preferred stock, without par value	$ 0	$ 0
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Common stock, without par value	$ 0	$ 0
Common stock, shares authorized	100,000,000	100,000,000
Common stock, issued	33,151,000	31,613,000
Common stock, outstanding	33,151,000	31,613,000

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Dec. 31, 2016	Jan. 02, 2016
Sales Revenue, Goods, Net	$ 25,427	$ 31,282	$ 85,069	$ 98,914
Sales Revenue, Services, Net	8,352	12,060	26,036	33,991
Net sales	33,779	43,342	111,105	132,905
Cost of Goods Sold	17,283	20,292	53,851	63,922
Cost of Services	5,048	5,329	14,018	17,464
Cost of sales	22,331	25,621	67,869	81,386
Gross profit	11,448	17,721	43,236	51,519
Operating expenses:
Selling, service and administration	13,280	12,468	38,917	37,619
Research, development and engineering	7,868	7,778	23,258	24,706
Business Combination, Integration Related Costs	31	0	366	194
Restructuring Costs	321	1,944	321	2,597
Net operating expenses	21,500	22,190	62,862	65,116
Operating (loss) income	(10,052)	(4,469)	(19,626)	(13,597)
Non-operating (expense) income:
Interest and other (expense) income, net	34	67	162	68
Other Nonoperating Income (Expense)	34	67	162	68
Income (loss) before income taxes	(10,018)	(4,402)	(19,464)	(13,529)
Provision for (benefit from) income taxes	(325)	184	22	681
Net (loss) income	$ (9,693)	$ (4,586)	$ (19,486)	$ (14,210)
Net (loss) income per share - basic	$ (0.29)	$ (0.15)	$ (0.60)	$ (0.45)
Net (loss) income per share - diluted	$ (0.29)	$ (0.15)	$ (0.60)	$ (0.45)
Weighted average number of shares - basic	32,919	31,495	32,379	31,355
Weighted average number of shares - diluted	32,919	31,495	32,379	31,355

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS Statement - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Dec. 31, 2016	Jan. 02, 2016
Net (loss) income	$ (9,693)	$ (4,586)	$ (19,486)	$ (14,210)
Foreign currency translation adjustment, net of taxes	(745)	(68)	(884)	(793)
Accumulated other comprehensive loss related to benefit plan obligations, net of taxes	5	4	14	12
Net unrealized (loss) gain on available-for-sale securities, net of taxes	(2)	2	(6)	1
Other Comprehensive Income (Loss), Net of Tax	(742)	(62)	(876)	(780)
Comprehensive (loss) income	$ (10,435)	$ (4,648)	$ (20,362)	$ (14,990)

CONSOLIDATED STATEMENTS OF COM6

CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Dec. 31, 2016	Jan. 02, 2016
Foreign currency translation adjustment, taxes	$ 0	$ 0	$ 0	$ 0
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax	(5)	(2)	(7)	(7)
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax	$ 0	$ 0	$ 0	$ 0

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2016	Jan. 02, 2016
Payments to Acquire Businesses, Net of Cash Acquired	$ 2,010	$ 0
CASH FLOWS FROM OPERATING ACTIVITIES
Net (loss) income	(19,486)	(14,210)
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Depreciation and amortization	5,424	5,659
Amortization of acquired intangible assets	832	1,047
Share-based compensation expense	5,118	3,939
Gain on sale of property and equipment, net	(52)	(788)
Provision for Doubtful Accounts	(341)	127
Charges for Asset write0off of damaged product	946	0
Decrease (increase) in deferred income taxes	37	(71)
Changes in operating accounts, net of acquisitions:
Decrease (increase) in trade receivables, net	15,258	8,593
Decrease (increase) in inventories	(3,259)	(7,046)
Decrease (increase) in shipped systems pending acceptance	(2,802)	1,342
Decrease (increase) in other current assets	(738)	1,967
Increase (decrease) in accounts payable and accrued liabilities	(5,189)	10,531
Increase (decrease) in deferred revenue	4,449	(4,668)
Net cash (used in) provided by operating activities	301	7,998
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of investments	(331,343)	(320,581)
Proceeds from sales and maturities of investments	339,691	306,423
Purchase of property, plant and equipment	(3,408)	(2,740)
Decrease (increase) in other assets	(120)	(133)
Net cash (used in) provided by investing activities	2,817	(17,029)
Proceeds from Sale of Property, Plant, and Equipment	7	2
CASH FLOWS FROM FINANCING ACTIVITIES
Payments Related to Tax Withholding for Share-based Compensation	(801)	(645)
Proceeds from Issuance of Common Stock	1,043	1,056
Net cash (used in) provided by financing activities	242	411
Effect of exchange rate changes on cash	(882)	(303)
NET CHANGE IN CASH AND CASH EQUIVALENTS	2,478	(8,923)
Cash and Cash Equivalents, at Carrying Value	44,891	42,071
SUPPLEMENTAL CASH FLOW INFORMATION
Cash paid for interest	30	57
Cash paid for income taxes	(504)	(799)
Income tax refunds received	45	140
Property, Plant and Equipment, Gross, Period Increase (Decrease)	5,414	2,988
Property, Plant and Equipment, Additions	$ 205	$ 160

The Company

The Company	9 Months Ended
	Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
The Company	Basis of Presentation These unaudited interim condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission. Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with United States generally accepted accounting principles ("U.S. GAAP") have been condensed or omitted in these interim statements. Accordingly, these condensed consolidated financial statements are to be read in conjunction with the financial statements and notes included in the Company's Annual Report on Form 10-K for its fiscal year ended April 2, 2016 . These interim statements include all adjustments (consisting of only normal recurring adjustments and accruals) necessary for a fair presentation of results for the interim periods presented. The results for interim periods are not necessarily indicative of the results of operations for the entire year. The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of commitments and contingencies at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results may differ from those estimates. Management believes that the estimates used are reasonable. Significant estimates made by management include: revenue recognition; inventory valuation; product warranty reserves; allowance for doubtful accounts; accrued restructuring costs; share-based compensation; income taxes including the valuation of deferred tax assets; fair value measurements; acquisition accounting; valuation of long-lived assets; valuation of goodwill; and valuation of acquired technology. Except for the added policy below, there have been no significant changes to the Company's significant accounting policies from those presented in Note 2 “Summary of Significant Accounting Policies” to the consolidated financial statements included in the Company's Annual Report on Form 10-K for its fiscal year ended April 2, 2016 . All references to years or quarters relate to fiscal years or fiscal quarters unless otherwise noted. The fiscal quarter ended December 31, 2016 consisted of a 13-week period while the fiscal quarter ended January 2, 2016 consisted of a 14-week period. Similarly, the three fiscal quarters ended December 31, 2016 consisted of a 39-week period compared to a 40-week period for the three fiscal quarters ended January 2, 2016 . Acquisition Accounting The fair value of the consideration exchanged in an acquisition is allocated to tangible assets and identifiable intangible assets acquired and liabilities assumed at acquisition date fair value. Goodwill is measured as the excess of the consideration transferred over the net fair value of identifiable assets acquired and liabilities assumed. The accounting for an acquisition involves a considerable amount of judgment and estimation. Cost, income, market or a combination of approaches may be used to establish the fair value of consideration exchanged, assets acquired and liabilities assumed, depending on the nature of those items. The valuation approach is determined in accordance with generally accepted valuation methods or other generally accepted methods. Key areas of estimation and judgment may include projections of future performance, cost of capital, market characteristics, cost structure, impacts of synergies, and estimates of terminal value, among others. While the Company uses best estimates and assumptions as part of the purchase price allocation process to estimate the value of assets acquired and liabilities assumed, estimates are inherently uncertain and subject to refinement. During the measurement period, which may be up to one year from the acquisition date, the Company may record adjustments to the assets acquired and liabilities assumed, with a corresponding offset to goodwill, to the extent that adjustments are identified to the preliminary purchase price allocation. Upon conclusion of the measurement period, or final determination of the value of the assets acquired and liabilities assumed, whichever comes first, any subsequent adjustments are recorded to results from operations. Refer to Note 5, “Business Acquisitions” of Notes to Condensed Consolidated Financial Statements for further discussion of purchase accounting, valuation methodology and assumptions.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	9 Months Ended
	Dec. 31, 2016
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Recent Accounting Pronouncements	Recent 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 2 was required in the past. In place of step 2, companies will recognize an impairment loss equal to the amount by which the carrying value exceeds the value; not to exceed the total amount of goodwill allocated to the reporting unit. ASU 2017-04 is effective, for SEC filers, for annual periods beginning after December 15, 2019, and interim periods within those annual periods, which would be the Company's fiscal year ending March 27, 2021; early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. While the Company does not expect the adoption of ASU 2017-04 to have a material effect on its business, the Company is still evaluating any potential impact that adoption of ASU 2017-04 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 Company has not yet selected a transition method and is currently evaluating the effect that the updated standards will have on the consolidated financial statements and related disclosures. The new standards are effective for the Company's fiscal year ending March 30, 2019. 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. ASU 2016-18 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 2016-18 to have a material effect on its business, the Company is still evaluating any potential impact that adoption of ASU 2016-18 may have on its financial position, results of operations or cash flows. In October 2016, the FASB issued ASU 2016-17, Consolidation (Topic 810): Interests Held through Related Parties That Are under Common Control, which amends guidance on related parties under common control and the consideration of indirect interests held by related parties under common control by the single decision maker. ASU 2016-17 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 2016-17 to have a material effect on its business, the Company is still evaluating any potential impact that adoption of ASU 2016-17 may have on its financial position, results of operations or cash flows. 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. The Company elected to early adopt ASU 2016-15 and it did not have any effect on the Company's 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. While the Company does not expect the adoption of ASU 2016-02 to have a material effect on its business, 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.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Financial Assets and Liabilities Measured at Fair Value ASC Topic 820 establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value. These tiers include the following: • Level 1 , defined as observable inputs such as quoted prices in active markets for identical assets or liabilities; • Level 2 , defined as inputs that are observable either directly or indirectly such as quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active and other inputs that can be corroborated by observable market data; and • Level 3 , defined as unobservable inputs for which little or no market data exists, therefore requiring an entity to develop its own assumptions. The Company’s fair value hierarchy for its financial assets and liabilities measured at fair value on a recurring basis as of December 31, 2016 and April 2, 2016 was as follows (in thousands): December 31, 2016 Level 1 Level 2 Level 3 Total Cash equivalents: Money market securities $ 3,370 $ — $ — $ 3,370 Commercial paper — 11,196 — 11,196 Total cash equivalents $ 3,370 $ 11,196 $ — $ 14,566 Short term investments - available for sale: U.S. treasury fund $ 1,003 $ — $ — $ 1,003 Commercial paper — 4,295 — 4,295 Government agencies — 1,003 — 1,003 Total short-term investments - available for sale $ 1,003 $ 5,298 $ — $ 6,301 Forward purchase or (sale) contracts: Japanese Yen $ — $ (2 ) $ — $ (2 ) New Taiwan Dollar — (12 ) — (12 ) Korean Won — 48 — 48 Euro — 158 — 158 British Pound — (33 ) — (33 ) Chinese Renminbi — (1 ) — (1 ) Singapore Dollar — 1 — 1 Total forward contracts $ — $ 159 $ — $ 159 Deferred compensation plan assets:* Mutual funds and exchange traded funds $ 2,316 $ — $ — $ 2,316 Money market securities 785 — — 785 Total deferred compensation plan assets $ 3,101 $ — $ — $ 3,101 April 2, 2016 Level 1 Level 2 Level 3 Total Cash equivalents: Money market securities $ 4,643 $ — $ — $ 4,643 Commercial paper — 12,140 — 12,140 Total cash equivalents $ 4,643 $ 12,140 $ — $ 16,783 Short term investments - available for sale: U.S. treasury fund $ 1,003 $ — $ — $ 1,003 Commercial paper — 997 — 997 Government agencies — 13,252 — 13,252 Total short-term investments - available for sale $ 1,003 $ 14,249 $ — $ 15,252 Forward purchase or (sale) contracts: Japanese Yen $ — $ (31 ) $ — $ (31 ) New Taiwan Dollar — 5 — 5 Korean Won — 129 — 129 Euro — (367 ) — (367 ) Chinese Renminbi — (1 ) — (1 ) Singapore Dollar — 20 — 20 Total forward contracts $ — $ (245 ) $ — $ (245 ) Deferred compensation plan assets:* Mutual funds and exchange traded funds $ 1,916 $ — $ — $ 1,916 Money market securities 588 — — 588 Total deferred compensation plan assets $ 2,504 $ — $ — $ 2,504 *These investments represent assets held in trust for the deferred compensation plan For Level 1 assets, the Company utilized quoted prices in active markets for identical assets. For Level 2 assets, exclusive of forward contracts, the Company utilized quoted prices in active markets for similar assets. For forward contracts, spot prices at December 31, 2016 and April 2, 2016 were utilized to calculate fair values. During the first three quarters of 2017 and 2016 , there were no transfers between Level 1, 2 or 3 assets. Investments The Company’s investments at December 31, 2016 and April 2, 2016 were as follows (in thousands): Unrealized December 31, 2016 Cost Gain Loss Fair Value Available-for-sale securities (current): Government agencies $ 1,003 $ — $ — $ 1,003 Commercial paper 15,491 — — 15,491 Total investments (current) $ 16,494 $ — $ — $ 16,494 Available-for-sale securities (non-current): Mutual funds, exchange traded funds and money market securities* $ 3,046 $ 55 $ — $ 3,101 Total investments (non-current) $ 3,046 $ 55 $ — $ 3,101 Unrealized April 2, 2016 Cost Gain Loss Fair Value Available-for-sale securities (current): Commercial paper $ 13,137 $ — $ — $ 13,137 Government agencies 13,247 5 — 13,252 Total investments (current) $ 26,384 $ 5 $ — $ 26,389 Available-for-sale securities (non-current): Mutual funds, exchange traded funds and money market securities* $ 2,507 $ — $ (3 ) $ 2,504 Total investments (non-current) $ 2,507 $ — $ (3 ) $ 2,504 *These investments represent assets held in trust for the deferred compensation plan For purposes of determining gross realized gains and losses and reclassification out of accumulated other comprehensive income (loss), the cost of securities sold is based on specific identification. Net unrealized holding gains and losses on current available-for-sale securities included in accumulated other comprehensive income (loss) were insignificant as of December 31, 2016 and April 2, 2016 .

Share-Based Compensation

Share-Based Compensation	9 Months Ended
	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Compensation	Share-Based Compensation The Company's share-based compensation consists of stock-settled stock appreciation rights (SARs), restricted stock unit awards with a service condition (time-based RSUs), restricted stock unit awards with a performance condition (performance-based RSUs), restricted stock unit awards with a market condition (market-based RSUs) and an employee stock purchase plan. The Company recognizes expense related to the fair value of SARs and employee stock purchase plan using the Black-Scholes model to estimate the fair value of awards on the date of grant. SARs grant the right to receive shares of the Company's stock equivalent to the increase in stock value of a specified number of shares over a specified period of time, divided by the stock price at the time of exercise. The fair value of time-based RSUs and performance-based RSUs are measured on the grant date based on the market value of the Company's common stock. The market-based RSUs must achieve the total shareholder return (TSR) measures in order for the awards to vest, and the grant date fair value of the awards is calculated using a Monte Carlo simulation model. The Company recognizes compensation expense for all share-based compensation awards, net of estimated forfeitures, on a straight-line basis over the requisite service period of the award. Expense for performance-based RSUs is recognized based on the probability of achievement of the performance criteria. The compensation cost for market-based RSUs is recognized over the related service period, even if the market condition is never satisfied. The Company granted a total of 943,445 time-based RSUs, 443,565 market-based RSUs and 90,000 performance-based RSUs during the first three quarters of 2017 , but did not grant any SARs. Grants for the third quarter of 2017 included 248,565 market-based RSUs and 229,445 time-based RSUs granted to the Company's newly appointed President and CEO. Share-based compensation expense under the stock incentive plans is included in the Company’s Condensed Consolidated Statements of Operations as follows: Fiscal quarter ended Three fiscal quarters ended (In thousands) December 31, 2016 January 2, 2016 December 31, 2016 January 2, 2016 Cost of sales $ 142 $ 103 $ 398 $ 347 Selling, general and administrative 1,391 832 3,573 2,291 Research, development and engineering 285 188 656 613 Total share-based compensation expense $ 1,818 $ 1,123 $ 4,627 $ 3,251 The Company does not capitalize share-based compensation costs. As of December 31, 2016 , the Company had $10.6 million of total unrecognized share-based compensation costs, net of estimated forfeitures, which are expected to be recognized over a weighted average period of 1.8 years.

Business Acquisitions

Business Acquisitions	9 Months Ended
	Dec. 31, 2016
Business Combinations [Abstract]
Business Acquisitions	Business Acquisitions Fiscal 2017 On August 1, 2016, the Company acquired all of the outstanding shares of Visicon Technologies, Inc. (Visicon), a leading supplier of high-accuracy and high-throughput measurement and defect detection systems based in Napa, California. The consideration under the merger agreement is subject to adjustment for indebtedness, seller's transaction expenses, working capital and other items. Based on estimated closing working capital and other adjustments, the Company paid $2.0 million in cash and expects to issue 637,082 shares of ESI common stock, valued at approximately $4.5 million . The value of the common stock is based on the closing price of stock on August 1, 2016. Of the expected shares to be issued in connection with the agreement, 33,143 shares, adjusted for working capital changes, are expected to be reserved in escrow to serve as a source of payment for any purchase price adjustments or indemnity claims by the Company. The sellers have contractually agreed to limitations on the sale of the shares of common stock they receive in connection with the sale of Visicon; specifically, no shares can be sold for six months following closing, after which point twenty five percent of the shares each stockholder receives can be sold in each of the following four three-month periods. The shares issued as a part of this merger represent a non-cash investing activity of $4.5 million . As of the reporting date, the Company has not completed the valuation of assets acquired and liabilities assumed. The amounts presented below represent provisional amounts based on best estimates utilizing information available to-date. In the absence of better information, amounts presented represent the carrying value of the item as of the acquisition date. These provisional amounts may be revised once the fair value of the associated assets acquired and liabilities assumed is finalized. The total estimated purchase price of $6.5 million , net of cash acquired, was allocated to the underlying assets acquired and liabilities assumed based on estimated fair value, as shown in the following table: (In thousands) Accounts receivable $ 391 Inventory 2,056 Prepaid expense and other current assets 116 Property, plant and equipment 642 Acquired intangibles 3,300 Goodwill 1,907 Other assets 26 Accounts payable and other accrued liabilities (1,952 ) Total purchase price, net of cash acquired $ 6,486 The acquisition is expected to provide the Company with a portfolio of standalone defect detection systems for the medical device and consumer electronics markets. In addition to a standalone product portfolio and associated value streams, the Company believes the acquisition will provide complementary technology for integrated verification of laser machining, expand its presence into the medical device market, present an opportunity for enhanced vertical integration and result in synergies with the Company's current consumer electronics customer base. Products acquired in the Visicon acquisition are included in the Micromachining segment due to the complementary nature of the sales process and customer base. The value of goodwill has not been finalized as the valuation of assets acquired and liabilities assumed is not yet complete. None of the goodwill is expected to be deductible for tax purposes. The acquired intangible assets consisted primarily of approximately $2 million of developed technology and identified intangible assets are expected to be amortized over their useful lives of one to six years. In connection with the acquisition of Visicon, the Company is consolidating Visicon operations with ESI operations, and streamlining manufacturing and development activities between Napa and existing ESI locations. The Company expects to incur total costs approximating $1.2 million in connection with these integration activities. Approximately $0.5 million in integration costs were incurred through the third quarter of 2017 . These costs are included in Selling, general and administrative expenses in the Condensed Consolidated Statements of Operations, and include transaction fees, travel costs, employee severance and other related costs. The operating results of the acquired entity are included in the Company’s results of operations since the date of acquisition. Pro forma financial information has not been provided for the acquisition of Visicon as it is not material to the Company’s operations and financial position. Fiscal 2015 On January 15, 2015, the Company acquired all of the outstanding shares of Wuhan Topwin Optoelectronics Technology Co., Ltd. (Topwin), a Chinese manufacturer of laser-based systems for $7.6 million in cash and 748,944 shares of ESI common stock issuable over a three year period, valued at approximately $2.9 million as of the acquisition date. Out of the $2.9 million in equity, one-half, or 374,472 shares, is contingent-based consideration and one-half, or 374,472 shares, is non-contingent and will be issued over a three year period beginning June 30, 2015. The contingent consideration is based on future performance of Topwin, as evaluated against targets for net income for each year over a three year period. One-third of the contingent shares will be issued after each year if the target is met for that year. However, failing to meet stated targets will result in none of the contingent shares being issued for that year. As of the acquisition date, the fair value of 374,472 shares of contingent consideration was estimated to be $0.4 million and the fair value of 374,472 shares of non-contingent consideration was estimated to be $2.5 million . The fair value of the non-contingent and contingent shares to be issued over the three year period was determined based on the estimated share price as of the issuance date derived through Monte Carlo simulation, discounted back to the acquisition date. The value of the contingent shares included an estimate of the probability of attainment of the net income targets. Analysis supporting the purchase price allocation included a valuation of assets and liabilities as of the closing date, an analysis of intangible assets and a detailed review of the opening balance sheet to determine other significant adjustments required to recognize assets and liabilities at fair value. Through the third quarter of 2017 , zero and 212,217 shares of ESI common stock have been issued in connection with contingent and non-contingent consideration under the purchase agreement, respectively. Additionally, the Company agreed to issue, on the same terms described above, up to approximately 513,328 shares valued at $2.0 million , which, together with cash amounts of $0.2 million , is treated as compensation to an employee in the Company who was also a former shareholder of Topwin. The compensation expense was to be recognized over a three year period. From acquisition through the third quarter of fiscal 2017 , the Company has recognized $1.4 million in share-based compensation expense related to this agreement. From acquisition through the third quarter of fiscal 2017 , zero and 145,427 shares of ESI common stock have been issued in connection with contingent and non-contingent components of compensation expense, respectively. The total purchase price of approximately $10.5 million , net of cash acquired, was allocated to the underlying assets acquired and liabilities assumed based on their fair values, as shown in the following table: (In thousands) Accounts receivable, net of allowances of $268 $ 454 Inventory 544 Prepaid expense and other current assets 295 Property, plant and equipment 23 Acquired intangibles 3,618 Goodwill 7,445 Accounts payable and other accrued liabilities (1,859 ) Total purchase price, net of cash acquired $ 10,520 The acquisition is expected to enable the Company to gain entry into the low total-cost-of-ownership solutions market in China and the goodwill of approximately $7.4 million recognized as a result of the acquisition was assigned to the Topwin reporting unit. The premium paid over the fair value of the individual assets acquired and liabilities assumed reflects the Company’s view that this acquisition was the result of a competitive bid process and has provided the Company with innovative design and manufacturing capabilities for laser-based manufacturing solutions across a variety of complementary applications, together with direct access to local China market, supply chain and opto-electronics knowledge center. None of the goodwill is expected to be deductible for tax purposes. As a result of the acquisition, the Company recorded approximately $4.9 million of identifiable assets, including $3.6 million of identifiable intangible assets and $1.9 million of identifiable liabilities. The acquired intangible assets consisted primarily of $3.5 million of developed technology to be amortized over their useful lives, which range from one to ten years. In the first three quarters of 2017 the Company did not incur any Topwin acquisition-related costs while it incurred approximately $194 thousand in the first three quarters of 2016 ; these costs are included in Selling, general and administrative expenses in the Condensed Consolidated Statements of Operations. The operating results of this acquisition are included in the Company’s results of operations since the date of acquisition. Pro forma financial information has not been provided for the acquisition of Topwin as it is not material to the Company’s operations and overall financial position. In the first quarter of 2017, the Company entered into an agreement with former Topwin shareholders to settle claims against withheld shares. Pursuant to the purchase agreement and the subsequent settlement agreement, the Company’s obligation to issue shares with a future issuance date, which served as a source of indemnification, was terminated, representing the effective recovery of 63,114 shares. At the date of recovery the shares had a closing price of $6.30 per share and an original fair value of $446 thousand . As a result, the withheld shares which were initially accounted for as stock compensation were deemed to have forfeited in the first quarter of 2017 and those shares representing contingent consideration and included as a component of purchase price were accounted for within equity. This subsequent recovery of shares issuable under the agreement represented a non-cash investing and financing activity. In the second quarter of 2017, as a result of this same settlement agreement, all cash amounts held in escrow were released to the Company, representing the recovery of $430 thousand , slightly less than the original cash escrow of $450 thousand due to exchange rate losses. As a result of this recovery, amounts previously recognized as compensation costs were reversed in the current period and those amounts included as a component of purchase price were recognized as a non-operating gain in the second quarter of 2017, and classified accordingly on the statement of cash flows. The purchase price of Topwin was not adjusted for either the stock or cash escrow recoveries as the measurement period for purchase price accounting related to this acquisition had lapsed prior to the recovery of these amounts.

Inventories

Inventories	9 Months Ended
	Dec. 31, 2016
Inventory Disclosure [Abstract]
Inventories	Inventories Inventories are principally valued at standard cost, which approximates the lower of cost or market on a first-in, first-out basis. Components of inventories were as follows: (In thousands) December 31, 2016 April 2, 2016 Raw materials and purchased parts $ 40,405 $ 38,957 Work-in-process 14,196 14,270 Finished goods 4,229 7,243 $ 58,830 $ 60,470

Other Current Assets

Other Current Assets	9 Months Ended
	Dec. 31, 2016
Disclosure Other Current Assets [Abstract]
Other Current Assets	Other Current Assets Other current assets consisted of the following: (In thousands) December 31, 2016 April 2, 2016 Prepaid expenses $ 3,411 $ 2,747 Value added tax receivable 1,538 1,353 Other 954 1,240 $ 5,903 $ 5,340 Included in "Other" Other current assets are non-trade receivables and other similar items.

Other Assets

Other Assets	9 Months Ended
	Dec. 31, 2016
Other Assets, Noncurrent Disclosure [Abstract]
Other Assets	Other Assets Other assets consisted of the following: (In thousands) December 31, 2016 April 2, 2016 Consignment and demo equipment, net $ 11,130 $ 7,242 Long term deposits 2,627 2,543 Non-current trade accounts receivable, net 90 320 Other non-current assets 3,178 2,521 $ 17,025 $ 12,626 Depreciation expense for demo and leased equipment totaled $0.1 million in the third quarter of 2017 and $0.2 million in the third quarter of 2016 . For the three fiscal quarters ended December 31, 2016 depreciation expense for demo and leased equipment totaled $0.3 million compared to $0.4 million for the three fiscal quarters ended January 2, 2016 . Included in "Other" Other assets are long-term investments and other similar items.

Accrued Current Liabilities & O

Accrued Current Liabilities & Other Liabilities Other liabilities (Notes)	9 Months Ended
	Dec. 31, 2016
Other Liabilities Disclosure [Abstract]
Accounts Payable and Accrued Liabilities Disclosure [Text Block]	Accrued Liabilities (Current) & Other Liabilities (Non-current) Accrued liabilities (current) consisted of the following: (In thousands) December 31, 2016 April 2, 2016 Payroll-related liabilities $ 4,860 $ 5,717 Product warranty accrual 4,136 3,666 Customer deposits 2,364 1,731 Purchase order commitments and receipts 1,256 2,588 Professional fees payable 914 1,052 Restructuring costs payable 620 757 Other current liabilities 1,865 2,823 $ 16,015 $ 18,334 Included in other current liabilities above are accrued amounts for value-added taxes, income taxes, freight, and other similar items. Other liabilities (non-current) consisted of the following: (In thousands) December 31, 2016 April 2, 2016 Deferred compensation $ 3,101 $ 2,504 Product warranty accrual 775 2,068 Other non-current liabilities 2,209 3,229 $ 6,085 $ 7,801 Other non-current liabilities include long-term deferred revenue, income taxes payable, long-term deposits and other similar items.

Product Warranty

Product Warranty	9 Months Ended
	Dec. 31, 2016
Product Warranties Disclosures [Abstract]
Product Warranty	Product Warranty The following is a reconciliation of the changes in the aggregate product warranty accrual: Fiscal quarter ended Three fiscal quarters ended (In thousands) December 31, 2016 January 2, 2016 December 31, 2016 January 2, 2016 Product warranty accrual, beginning $ 5,521 $ 4,451 $ 5,734 $ 3,342 Warranty charges incurred, net (1,674 ) (2,057 ) (4,988 ) (5,604 ) Provision for warranty charges 1,064 2,292 4,165 6,948 Product warranty accrual, ending $ 4,911 $ 4,686 $ 4,911 $ 4,686 Net warranty charges incurred include labor charges and costs of replacement parts for system repairs under warranty. These costs are recorded net of any estimated cost recoveries resulting from either successful repair of damaged parts or from warranties offered by the Company’s suppliers for defective components. The provision for warranty charges reflects the estimate of future anticipated net warranty costs to be incurred for all products under warranty at quarter end and is recorded to cost of sales. Of the total of $4.9 million in product warranty accrual at December 31, 2016 , $0.8 million is non-current and is included in Other liabilities on the Condensed Consolidated Balance Sheets.

Deferred Revenue

Deferred Revenue	9 Months Ended
	Dec. 31, 2016
Deferred Revenue Disclosure [Abstract]
Deferred Revenue	Deferred Revenue Generally, revenue is recognized upon fulfillment of acceptance criteria at the Company's factory and transfer of risk and title. Revenue is deferred whenever title transfer is pending, risk has not transferred, and/or acceptance criteria have not yet been fulfilled. Deferred revenue arises from, among other factors, sales to Japanese customers, shipments of substantially new products and shipments with custom specifications and acceptance criteria where the Company cannot demonstrate a track record of acceptance. For sales involving multiple element arrangements, the relative selling price of any undelivered elements, including installation services and similar items, is deferred until the elements are delivered and acceptance criteria are met. Revenue related to maintenance and service contracts is deferred and recognized ratably over the duration of the contracts. The following is a reconciliation of the changes in deferred revenue: Fiscal quarter ended Three fiscal quarters ended (In thousands) December 31, 2016 January 2, 2016 December 31, 2016 January 2, 2016 Deferred revenue, beginning $ 11,583 $ 12,662 $ 7,685 $ 12,376 Revenue deferred 9,075 13,868 28,547 47,459 Revenue recognized (9,440 ) (18,822 ) (25,014 ) (52,127 ) Deferred revenue, ending $ 11,218 $ 7,708 $ 11,218 $ 7,708 Of the total of $11.2 million in deferred revenue at December 31, 2016 , $0.4 million is non-current and is included in Other liabilities on the Condensed Consolidated Balance Sheets.

Commitments & Contingencies (No

Commitments & Contingencies (Notes)	9 Months Ended
	Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Text Block]	Commitments & Contingencies The Company is party to a loan and security agreement ("Loan Agreement") with Silicon Valley Bank, which was initially entered into on March 20, 2015 and amended on July 12, 2016. The Loan Agreement provides for a senior secured asset-based revolving credit facility (the “Credit Facility”) with up to $30 million available on a revolving basis, including a $15 million sublimit for letters of credit. The credit agreement expires March 20, 2018. At December 31, 2016 , the Company had no revolving loans or letters of credit outstanding under the Credit Facility, was in compliance with all covenants, and was not in default under the Loan Agreement. The commitment fee on the amount of unused credit was 0.3 percent. In the fourth quarter of 2017, the Company amended and extended by one year this credit agreement. As amended, the credit agreement allows for a greater level of EBITDA losses over the next 12 months, but reduces the level of permitted acquisitions and purchases of capital equipment. Please see Note 18 "Subsequent Events" . The Company mitigates credit risk by transacting with highly rated counterparties for foreign exchange contracts, letters of credit and other transactions where counterparty risk is a factor. The Company has evaluated the non-performance risks associated with the Company's lenders and other parties and believe them to be insignificant. From time to time the Company may be party to litigation arising in the normal course of business. Currently, the Company is not party to any litigation it believes would have a material adverse effect on the Company's financial position, results of operations or cash flows.

(Loss) Earnings Per Share

(Loss) Earnings Per Share	9 Months Ended
	Dec. 31, 2016
Earnings Per Share [Abstract]
(Loss) Earnings Per Share	Earnings (Loss) Per Share The following is a reconciliation of weighted average shares outstanding used in the calculation of basic and diluted earnings (loss) per share: Fiscal quarter ended Three fiscal quarters ended (In thousands, except per share data) December 31, 2016 January 2, 2016 December 31, 2016 January 2, 2016 Net loss $ (9,693 ) $ (4,586 ) $ (19,486 ) $ (14,210 ) Weighted average shares used for basic earnings per share 32,919 31,495 32,379 31,355 Weighted average shares used for diluted earnings per share 32,919 31,495 32,379 31,355 Net loss per share: Basic $ (0.29 ) $ (0.15 ) $ (0.60 ) $ (0.45 ) Diluted $ (0.29 ) $ (0.15 ) $ (0.60 ) $ (0.45 ) Awards of options, SARs and RSUs representing an additional 2.8 million and 2.9 million shares of stock for the third quarter of 2017 and 2016 , respectively, and 2.5 million and 2.6 million shares of stock for the three fiscal quarters of 2017 and 2016, respectively, were not included in the calculation of diluted net earnings per share because their effect would have been antidilutive.

Segment and Geographic Informat

Segment and Geographic Information (Notes)	9 Months Ended
	Dec. 31, 2016
Segment and Geographic Information [Abstract]
Segment Reporting Disclosure [Text Block]	Segment and Geographic Information Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker, or decision making group, in deciding how to allocate resources and in assessing performance. The chief operating decision maker ("CODM") is the Company's Chief Executive Officer. The Company currently operates in two segments, Component Processing and Micromachining. Included within Component Processing are interconnect products, semiconductor products and component test products. The interconnect, semiconductor and component test products are sold primarily to manufacturers of electronic components and are used to drill, cut, trim, ablate, test and mark features that improve the yield or functionality of the component. Micromachining products are sold primarily to manufacturers of end devices across multiple industries and are used primarily to drill, cut or mark features on a variety of materials, generally on the casing or external surface of the end device. In addition, micromachining products tend to serve markets that require fewer features, less stringent design requirements, and lower cost. Products acquired in the Visicon acquisition are included in the Micromachining segment due to the complementary nature of the sales process and customer base. The Company uses U.S. GAAP for segment reporting, consistent with the accounting policies of the consolidated entity. Segment disclosures are presented to the gross profit level as this is the primary performance measure for which segment management is responsible. Corporate and other charges include amortization of acquired intangible assets, stock-based compensation, restructuring and other costs. Selling, general and administrative and other operating expenses are managed at the functional and corporate levels, and because allocation to the market segments would be arbitrary and because this level of information is not used by the CODM, have not been allocated to the market segments. See the consolidated statements of operations for reconciliations from gross profit to income before taxes. These reconciling items are not included in the measure of profit and loss for each reportable segment. In the quarter ended July 2, 2016, the Company revised the method it uses to determine segment gross margin amounts used by the CODM. Previously the profit on lasers (or more specifically, the difference between an estimated third-party purchase price of a similar laser and the cost for the Company to produce these lasers) was associated with only a single segment where the internal lasers were primarily employed or expected to be employed. However, with recent introduction of new products, certain of the Company's internal lasers are now used in both the Component Processing and Micromachining segments. The change in method was made to refine the allocation of profit to the segments given this new dynamic consistent with the information used by the CODM, and to ensure that the margin associated with the use of internal lasers is reflected in the profit of the segment generating the third-party sale. No revisions to segment gross margins were made retrospectively as the changes were deemed immaterial. Net sales by segment were as follows: Fiscal quarter ended Three fiscal quarters ended (In thousands) December 31, 2016 January 2, 2016 December 31, 2016 January 2, 2016 Component Processing $ 28,084 $ 37,511 $ 96,952 $ 108,549 Micromachining 5,695 5,831 14,153 24,356 $ 33,779 $ 43,342 $ 111,105 $ 132,905 Gross profits by segment were as follows: Fiscal quarter ended Three fiscal quarters ended (In thousands) December 31, 2016 January 2, 2016 December 31, 2016 January 2, 2016 Component Processing $ 11,234 $ 17,969 $ 45,004 $ 45,466 Micromachining 415 1,482 262 8,617 Corporate and other (201 ) (1,730 ) (2,030 ) (2,564 ) $ 11,448 $ 17,721 $ 43,236 $ 51,519 Net sales by geographic area, based on the location of the end user, were as follows: Fiscal quarter ended Three fiscal quarters ended (In thousands) December 31, 2016 January 2, 2016 December 31, 2016 January 2, 2016 Asia $ 26,015 $ 33,278 $ 92,184 $ 103,843 Americas 6,210 7,589 11,464 20,750 Europe 1,554 2,475 7,457 8,312 $ 33,779 $ 43,342 $ 111,105 $ 132,905

Restructuring and Cost Manageme

Restructuring and Cost Management Plans	9 Months Ended
	Dec. 31, 2016
Restructuring and Related Activities [Abstract]
Restructuring and Cost Management Plans	Restructuring and Cost Management Plans Chelmsford In March 2015, as a part of the plan to streamline manufacturing and development activities, the Company initiated a restructuring plan that included the closure of the assembly plant and development center located in Chelmsford, Massachusetts, which was part of the Component Processing segment. The original estimated completion date of the plan was the end of fiscal 2016 at a total estimated pre-tax cost of $ 5.5 million . There were $297 thousand of restructuring payments related to the above mentioned restructuring plan in the first three quarters of 2017 . Since the inception of the plan, $5.8 million in restructuring costs have been recognized. The plan was effectively complete as of the end of the fourth quarter of 2016. Included in these costs were write-offs of leasehold improvements associated with the abandoned manufacturing facility, employee severance and related payments, and other wind-down costs. The Company expects to pay the remaining costs and accrued expenses related to the leased facility by December 2019, which is the end of the lease term. At December 31, 2016 and April 2, 2016 , the amount of unpaid restructuring costs included in accrued liabilities for all plans was $0.5 million and $0.8 million , respectively. The following table presents the amounts related to restructuring costs payable (in thousands): Restructuring & cost management amounts payable as of April 2, 2016 $ 757 Employee severance and related benefits: Cash payments (297 ) Restructuring & cost management amounts payable as of December 31, 2016 $ 460

Shareholders' Equity

Shareholders' Equity	9 Months Ended
	Dec. 31, 2016
Stockholders' Equity Note [Abstract]
Shareholders' Equity	Shareholders’ Equity Share Repurchase Program In December 2011, the Board of Directors authorized a share repurchase program totaling $20.0 million to acquire shares of the Company's outstanding common stock. The repurchases are to be made at management’s discretion in the open market or in privately negotiated transactions in compliance with applicable securities laws and other legal requirements and are subject to market conditions, share price and other factors. The Company did not repurchase any shares during the first three quarters of 2017 or 2016 . There is no fixed completion date for the repurchase program.

Subsequent Events (Notes)

Subsequent Events (Notes)	9 Months Ended
	Dec. 31, 2016
Subsequent Event [Line Items]
Subsequent Events [Text Block]	Subsequent Events Facility Mortgage Agreement On January 9, 2017, ESI Leasing, LLC (“ESI Leasing”), a wholly owned subsidiary of the Company, entered into a loan agreement (the “Loan Agreement”) with First Technology Federal Credit Union (the “Lender”). The Loan Agreement provides for a term loan from the Lender to ESI Leasing in the principal amount of $14 million (the “Loan”). The interest rate of the Loan is fixed at 4.75% per annum, except that it may be increased if certain covenants under the Loan Agreement are not satisfied and after and during the continuation of an “Event of Default” as defined in the Loan Agreement. The Loan amortizes over a period of approximately 20 years, but the maturity date of the loan is January 1, 2027 , meaning that, if ESI Leasing does not prepay or refinance the Loan, a significant portion of the principal of the Loan will become due on January 1, 2027. ESI Leasing will pay monthly principal and interest payments on the Loan totaling annual amounts of $1.1 million . Loan and Security Agreement with Silicon Valley Bank In the fourth quarter of 2017, the Company amended and extended by one year this credit agreement. As amended, the credit agreement allows for a greater level of EBITDA losses over the next 12 months, but reduces the level of permitted acquisitions and purchases of capital equipment.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Fair Value Hierarchy for Financial Assets Measured at Fair Value on Recurring Basis	The Company’s fair value hierarchy for its financial assets and liabilities measured at fair value on a recurring basis as of December 31, 2016 and April 2, 2016 was as follows (in thousands): December 31, 2016 Level 1 Level 2 Level 3 Total Cash equivalents: Money market securities $ 3,370 $ — $ — $ 3,370 Commercial paper — 11,196 — 11,196 Total cash equivalents $ 3,370 $ 11,196 $ — $ 14,566 Short term investments - available for sale: U.S. treasury fund $ 1,003 $ — $ — $ 1,003 Commercial paper — 4,295 — 4,295 Government agencies — 1,003 — 1,003 Total short-term investments - available for sale $ 1,003 $ 5,298 $ — $ 6,301 Forward purchase or (sale) contracts: Japanese Yen $ — $ (2 ) $ — $ (2 ) New Taiwan Dollar — (12 ) — (12 ) Korean Won — 48 — 48 Euro — 158 — 158 British Pound — (33 ) — (33 ) Chinese Renminbi — (1 ) — (1 ) Singapore Dollar — 1 — 1 Total forward contracts $ — $ 159 $ — $ 159 Deferred compensation plan assets:* Mutual funds and exchange traded funds $ 2,316 $ — $ — $ 2,316 Money market securities 785 — — 785 Total deferred compensation plan assets $ 3,101 $ — $ — $ 3,101 April 2, 2016 Level 1 Level 2 Level 3 Total Cash equivalents: Money market securities $ 4,643 $ — $ — $ 4,643 Commercial paper — 12,140 — 12,140 Total cash equivalents $ 4,643 $ 12,140 $ — $ 16,783 Short term investments - available for sale: U.S. treasury fund $ 1,003 $ — $ — $ 1,003 Commercial paper — 997 — 997 Government agencies — 13,252 — 13,252 Total short-term investments - available for sale $ 1,003 $ 14,249 $ — $ 15,252 Forward purchase or (sale) contracts: Japanese Yen $ — $ (31 ) $ — $ (31 ) New Taiwan Dollar — 5 — 5 Korean Won — 129 — 129 Euro — (367 ) — (367 ) Chinese Renminbi — (1 ) — (1 ) Singapore Dollar — 20 — 20 Total forward contracts $ — $ (245 ) $ — $ (245 ) Deferred compensation plan assets:* Mutual funds and exchange traded funds $ 1,916 $ — $ — $ 1,916 Money market securities 588 — — 588 Total deferred compensation plan assets $ 2,504 $ — $ — $ 2,504
Investments	The Company’s investments at December 31, 2016 and April 2, 2016 were as follows (in thousands): Unrealized December 31, 2016 Cost Gain Loss Fair Value Available-for-sale securities (current): Government agencies $ 1,003 $ — $ — $ 1,003 Commercial paper 15,491 — — 15,491 Total investments (current) $ 16,494 $ — $ — $ 16,494 Available-for-sale securities (non-current): Mutual funds, exchange traded funds and money market securities* $ 3,046 $ 55 $ — $ 3,101 Total investments (non-current) $ 3,046 $ 55 $ — $ 3,101 Unrealized April 2, 2016 Cost Gain Loss Fair Value Available-for-sale securities (current): Commercial paper $ 13,137 $ — $ — $ 13,137 Government agencies 13,247 5 — 13,252 Total investments (current) $ 26,384 $ 5 $ — $ 26,389 Available-for-sale securities (non-current): Mutual funds, exchange traded funds and money market securities* $ 2,507 $ — $ (3 ) $ 2,504 Total investments (non-current) $ 2,507 $ — $ (3 ) $ 2,504

Share-Based Compensation Expens

Share-Based Compensation Expense (Tables)	9 Months Ended
	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]	hare-based compensation expense under the stock incentive plans is included in the Company’s Condensed Consolidated Statements of Operations as follows: Fiscal quarter ended Three fiscal quarters ended (In thousands) December 31, 2016 January 2, 2016 December 31, 2016 January 2, 2016 Cost of sales $ 142 $ 103 $ 398 $ 347 Selling, general and administrative 1,391 832 3,573 2,291 Research, development and engineering 285 188 656 613 Total share-based compensation expense $ 1,818 $ 1,123 $ 4,627 $ 3,251

Inventories (Tables)

Inventories (Tables)	9 Months Ended
	Dec. 31, 2016
Inventory Disclosure [Abstract]
Components of Inventories	Components of inventories were as follows: (In thousands) December 31, 2016 April 2, 2016 Raw materials and purchased parts $ 40,405 $ 38,957 Work-in-process 14,196 14,270 Finished goods 4,229 7,243 $ 58,830 $ 60,470

Other Current Assets (Tables)

Other Current Assets (Tables)	9 Months Ended
	Dec. 31, 2016
Disclosure Other Current Assets [Abstract]
Other Current Assets	Other current assets consisted of the following: (In thousands) December 31, 2016 April 2, 2016 Prepaid expenses $ 3,411 $ 2,747 Value added tax receivable 1,538 1,353 Other 954 1,240 $ 5,903 $ 5,340

Other Assets (Tables)

Other Assets (Tables)	9 Months Ended
	Dec. 31, 2016
Other Assets, Noncurrent Disclosure [Abstract]
Other Assets	Other assets consisted of the following: (In thousands) December 31, 2016 April 2, 2016 Consignment and demo equipment, net $ 11,130 $ 7,242 Long term deposits 2,627 2,543 Non-current trade accounts receivable, net 90 320 Other non-current assets 3,178 2,521 $ 17,025 $ 12,626

Accrued Current Liabilities &30

Accrued Current Liabilities & Other Liabilities Other Liabilities Disclosure (Tables)	9 Months Ended
	Dec. 31, 2016
Other Liabilities Disclosure [Abstract]
Schedule of Accrued Liabilities [Table Text Block]	Accrued liabilities (current) consisted of the following: (In thousands) December 31, 2016 April 2, 2016 Payroll-related liabilities $ 4,860 $ 5,717 Product warranty accrual 4,136 3,666 Customer deposits 2,364 1,731 Purchase order commitments and receipts 1,256 2,588 Professional fees payable 914 1,052 Restructuring costs payable 620 757 Other current liabilities 1,865 2,823 $ 16,015 $ 18,334
Other Noncurrent Liabilities [Table Text Block]	(In thousands) December 31, 2016 April 2, 2016 Deferred compensation $ 3,101 $ 2,504 Product warranty accrual 775 2,068 Other non-current liabilities 2,209 3,229 $ 6,085 $ 7,801 Other non-current liabilities include long-term deferred revenue, income taxes payable, long-term deposits and other similar items.

Product Warranty (Tables)

Product Warranty (Tables)	9 Months Ended
	Dec. 31, 2016
Product Warranties Disclosures [Abstract]
Reconciliation of the Change in Aggregate Accrual for Product Warranty	The following is a reconciliation of the changes in the aggregate product warranty accrual: Fiscal quarter ended Three fiscal quarters ended (In thousands) December 31, 2016 January 2, 2016 December 31, 2016 January 2, 2016 Product warranty accrual, beginning $ 5,521 $ 4,451 $ 5,734 $ 3,342 Warranty charges incurred, net (1,674 ) (2,057 ) (4,988 ) (5,604 ) Provision for warranty charges 1,064 2,292 4,165 6,948 Product warranty accrual, ending $ 4,911 $ 4,686 $ 4,911 $ 4,686

Deferred Revenue (Tables)

Deferred Revenue (Tables)	9 Months Ended
	Dec. 31, 2016
Deferred Revenue Disclosure [Abstract]
Reconciliation of the Changes in Deferred Revenue	The following is a reconciliation of the changes in deferred revenue: Fiscal quarter ended Three fiscal quarters ended (In thousands) December 31, 2016 January 2, 2016 December 31, 2016 January 2, 2016 Deferred revenue, beginning $ 11,583 $ 12,662 $ 7,685 $ 12,376 Revenue deferred 9,075 13,868 28,547 47,459 Revenue recognized (9,440 ) (18,822 ) (25,014 ) (52,127 ) Deferred revenue, ending $ 11,218 $ 7,708 $ 11,218 $ 7,708 Of the total of $11.2 million in deferred revenue at December 31, 2016 , $0.4 million is non-current and is included in Other liabilities on the Condensed Consolidated Balance Sheets.

Earnings (Loss) Per Share (Tabl

Earnings (Loss) Per Share (Tables)	9 Months Ended
	Dec. 31, 2016
Earnings Per Share [Abstract]
Reconciliation of Weighted Average Shares Outstanding Used in Calculation of Basic and Diluted Earnings Per Share	The following is a reconciliation of weighted average shares outstanding used in the calculation of basic and diluted earnings (loss) per share: Fiscal quarter ended Three fiscal quarters ended (In thousands, except per share data) December 31, 2016 January 2, 2016 December 31, 2016 January 2, 2016 Net loss $ (9,693 ) $ (4,586 ) $ (19,486 ) $ (14,210 ) Weighted average shares used for basic earnings per share 32,919 31,495 32,379 31,355 Weighted average shares used for diluted earnings per share 32,919 31,495 32,379 31,355 Net loss per share: Basic $ (0.29 ) $ (0.15 ) $ (0.60 ) $ (0.45 ) Diluted $ (0.29 ) $ (0.15 ) $ (0.60 ) $ (0.45 )

Segment and Geographic Inform34

Segment and Geographic Information (Tables)	9 Months Ended
	Dec. 31, 2016
Segment and Geographic Information [Abstract]
Net Sales by Segments [Table Text Block]	Net sales by segment were as follows: Fiscal quarter ended Three fiscal quarters ended (In thousands) December 31, 2016 January 2, 2016 December 31, 2016 January 2, 2016 Component Processing $ 28,084 $ 37,511 $ 96,952 $ 108,549 Micromachining 5,695 5,831 14,153 24,356 $ 33,779 $ 43,342 $ 111,105 $ 132,905
Gross profit by Segments [Table Text Block]	Gross profits by segment were as follows: Fiscal quarter ended Three fiscal quarters ended (In thousands) December 31, 2016 January 2, 2016 December 31, 2016 January 2, 2016 Component Processing $ 11,234 $ 17,969 $ 45,004 $ 45,466 Micromachining 415 1,482 262 8,617 Corporate and other (201 ) (1,730 ) (2,030 ) (2,564 ) $ 11,448 $ 17,721 $ 43,236 $ 51,519
Net Sales by Geographic Areas [Table Text Block]	Net sales by geographic area, based on the location of the end user, were as follows: Fiscal quarter ended Three fiscal quarters ended (In thousands) December 31, 2016 January 2, 2016 December 31, 2016 January 2, 2016 Asia $ 26,015 $ 33,278 $ 92,184 $ 103,843 Americas 6,210 7,589 11,464 20,750 Europe 1,554 2,475 7,457 8,312 $ 33,779 $ 43,342 $ 111,105 $ 132,905

Restructuring and Cost Manage35

Restructuring and Cost Management Plans (Tables)	9 Months Ended
	Dec. 31, 2016
Restructuring and Related Activities [Abstract]
Amounts Related to Restructuring Costs Payable	The following table presents the amounts related to restructuring costs payable (in thousands): Restructuring & cost management amounts payable as of April 2, 2016 $ 757 Employee severance and related benefits: Cash payments (297 ) Restructuring & cost management amounts payable as of December 31, 2016 $ 460

Fair Value Measurements - Fair

Fair Value Measurements - Fair Value Hierarchy for Financial Assets Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands		Dec. 31, 2016	Apr. 02, 2016
Cash Equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		$ 14,566	$ 16,783
Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		3,370	4,643
Cash Equivalents [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		11,196	12,140
Cash Equivalents [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		0	0
Cash Equivalents [Member] | Money Market Instruments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		3,370	4,643
Cash Equivalents [Member] | Money Market Instruments [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		3,370	4,643
Cash Equivalents [Member] | Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		11,196	12,140
Cash Equivalents [Member] | Commercial Paper [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure			0
Cash Equivalents [Member] | Commercial Paper [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		11,196	12,140
Short-term Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		6,301	15,252
Short-term Investments [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		1,003	1,003
Short-term Investments [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		5,298	14,249
Short-term Investments [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		0	0
Short-term Investments [Member] | Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		4,295	997
Short-term Investments [Member] | Commercial Paper [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		0	0
Short-term Investments [Member] | Commercial Paper [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		4,295	997
Short-term Investments [Member] | Commercial Paper [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		0	0
Short-term Investments [Member] | US Treasury and Government [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		1,003
Short-term Investments [Member] | US Treasury and Government [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		0
Short-term Investments [Member] | US Treasury and Government [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		1,003
Short-term Investments [Member] | US Treasury and Government [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		0
Short-term Investments [Member] | Corporate Bond Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure			13,252
Short-term Investments [Member] | Corporate Bond Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure			0
Short-term Investments [Member] | Corporate Bond Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure			13,252
Short-term Investments [Member] | Corporate Bond Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure			0
Short-term Investments [Member] | US Treasury Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		1,003	1,003
Short-term Investments [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		1,003	1,003
Short-term Investments [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		0	0
Short-term Investments [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		0	0
Foreign Exchange Forward [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Obligations, Fair Value Disclosure			245
Foreign Exchange Forward [Member] | Forward Contracts [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure			0
Foreign Exchange Forward [Member] | Forward Contracts [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Obligations, Fair Value Disclosure			245
Foreign Exchange Forward [Member] | Forward Contracts [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure			0
Foreign Exchange Forward [Member] | Forward Contracts [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Obligations, Fair Value Disclosure		159
Foreign Exchange Forward [Member] | Forward Contracts [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		0
Foreign Exchange Forward [Member] | Forward Contracts [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Obligations, Fair Value Disclosure		159
Foreign Exchange Forward [Member] | Forward Contracts [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		0
Foreign Exchange Forward [Member] | Japan, Yen | Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Obligations, Fair Value Disclosure		2	31
Foreign Exchange Forward [Member] | Japan, Yen | Forward Contracts [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Obligations, Fair Value Disclosure		2	31
Foreign Exchange Forward [Member] | Taiwan, New Dollars | Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure			5
Obligations, Fair Value Disclosure		12
Foreign Exchange Forward [Member] | Taiwan, New Dollars | Forward Contracts [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure			5
Obligations, Fair Value Disclosure		12
Foreign Exchange Forward [Member] | Korea (South), Won | Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		48	129
Foreign Exchange Forward [Member] | Korea (South), Won | Forward Contracts [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		48	129
Foreign Exchange Forward [Member] | Euro Member Countries, Euro | Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		158
Obligations, Fair Value Disclosure			367
Foreign Exchange Forward [Member] | Euro Member Countries, Euro | Forward Contracts [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		158
Obligations, Fair Value Disclosure			367
Foreign Exchange Forward [Member] | United Kingdom, Pounds | Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Obligations, Fair Value Disclosure		33
Foreign Exchange Forward [Member] | United Kingdom, Pounds | Forward Contracts [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Obligations, Fair Value Disclosure		33
Foreign Exchange Forward [Member] | China, Yuan Renminbi | Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Obligations, Fair Value Disclosure		1	1
Foreign Exchange Forward [Member] | China, Yuan Renminbi | Forward Contracts [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Obligations, Fair Value Disclosure		1	1
Foreign Exchange Forward [Member] | Singapore, Dollars | Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure			20
Foreign Exchange Forward [Member] | Singapore, Dollars | Forward Contracts [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure			20
Foreign Exchange Forward [Member] | Singapore, Dollars | Forward Contracts [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		1
Foreign Exchange Forward [Member] | Singapore, Dollars | Forward Contracts [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		1
Deferred Compensation Plan Asset [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred Compensation Plan Assets		3,101	2,504
Deferred Compensation Plan Asset [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred Compensation Plan Assets		3,101	2,504
Deferred Compensation Plan Asset [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred Compensation Plan Assets		0	0
Deferred Compensation Plan Asset [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred Compensation Plan Assets		0	0
Deferred Compensation Plan Asset [Member] | Exchange Traded Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred Compensation Plan Assets		2,316	1,916
Deferred Compensation Plan Asset [Member] | Exchange Traded Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred Compensation Plan Assets	[1]	2,316	1,916
Deferred Compensation Plan Asset [Member] | Exchange Traded Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred Compensation Plan Assets	[1]	0	0
Deferred Compensation Plan Asset [Member] | Exchange Traded Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred Compensation Plan Assets	[1]	0	0
Deferred Compensation Plan Asset [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred Compensation Plan Assets		785	588
Deferred Compensation Plan Asset [Member] | Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred Compensation Plan Assets		785	588
Deferred Compensation Plan Asset [Member] | Money Market Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred Compensation Plan Assets		0	0
Deferred Compensation Plan Asset [Member] | Money Market Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred Compensation Plan Assets		$ 0	$ 0
[1]	*These investments represent assets held in trust for the deferred compensation plan

Share-Based Compensation - Expe

Share-Based Compensation - Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Dec. 31, 2016	Jan. 02, 2016
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total share-based compensation expense	$ 1,818	$ 1,123	$ 4,627	$ 3,251
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition			1 year 10 months 2 days
Cost of Sales
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total share-based compensation expense	142	103	$ 398	347
Selling, General and Administrative Expenses
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total share-based compensation expense	1,391	832	3,573	2,291
Research and Development Expense
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total share-based compensation expense	285	$ 188	$ 656	$ 613
Performance Shares [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			90,000
Stock Options
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized	$ 10,600		$ 10,600
Service-based [Member] [Domain] | Restricted Stock Units (RSUs) [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			943,445
Market-based [Member] | Restricted Stock Units (RSUs) [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			443,565

Fair Value Measurements - Inves

Fair Value Measurements - Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Apr. 02, 2016
Available For Sale Securities Current [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities	$ 16,494	$ 26,389
Available-for-sale Securities, Amortized Cost Basis	16,494	26,384
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	0	5
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	0	0
Available For Sale Securities Current [Member] | US Government Agencies Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities	1,003	13,252
Available-for-sale Securities, Amortized Cost Basis	1,003	13,247
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	0	5
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	0	0
Available For Sale Securities Current [Member] | Commercial Paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities	15,491	13,137
Available-for-sale Securities, Amortized Cost Basis	15,491	13,137
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	0	0
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	0	0
Available For Sale Securities Non Current [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities	3,101	2,504
Available-for-sale Securities, Amortized Cost Basis	3,046	2,507
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	55	0
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	0	3
Available For Sale Securities Non Current [Member] | Exchange traded funds and money market securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities	3,101	2,504
Available-for-sale Securities, Amortized Cost Basis	3,046	2,507
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	55	0
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	$ 0	$ 3

Business Acquisitions - Allocat

Business Acquisitions - Allocation of Purchase Price of Assets Acquired and Liabilities Assumed Based on the Fair Value (Details) - USD ($)	Aug. 01, 2016	Jan. 15, 2015	Dec. 31, 2016	Jan. 02, 2016	Dec. 31, 2016	Jan. 02, 2016	Mar. 28, 2015	Apr. 02, 2016
Business Acquisition [Line Items]
Business Combination, Contingent Consideration Arrangements, Shares Issued or Issuable		374,472
Business Combination, Contingent Consideration Arrangements, Shares Issued - Non-Contingent			212,217		212,217
Shares grant as compensation		513,328
Value of shares grant as compensation		$ 2,000,000
Cash compensation		200,000
Allocated acquisition related compensation expenses - share based			$ 1,400,000		$ 1,400,000
Shares Granted As Consideration - Contingent			0		0
Shares Granted As Consideration - non-contingent			145,427		145,427
Goodwill			9,352,000		9,352,000			$ 7,445,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill								4,900,000
Business Combination, Integration Related Costs			$ 31,000	$ 0	$ 366,000	$ 194,000	$ 200,000
Business Combination Contingent Consideration Arrangements Shares Recovered			63,114		63,114
Business Combination Contingent Consideration Arrangement Shares Recovered price per share			$ 6.30		$ 6.30
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets Receivables Allowance		268,000
Visicon [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables	$ 391,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory	2,056,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	6,500,000
Payments to Acquire Businesses, Gross	116,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	$ 642,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	637,082
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned	$ 4,500,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	3,300,000
Goodwill	1,907,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	(1,952,000)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets	$ 26,000
Topwin [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables		454,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory		544,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net		10,500,000
Payments to Acquire Businesses, Gross		295,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment		23,000
Business Combination, Bargain Purchase, Total Gain		$ 3,600,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares		748,944
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned		$ 2,900,000
Business Combination, Non-Contingent Consideration Arrangements, Shares Issued or Issuable		374,472
Business Combination, Non-Contingent Consideration, Liability		$ 2,500,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares, Issuance Period		3 years
Business Combination, Contingent Consideration, Liability		$ 400,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles								$ 3,500,000
Business Combination, Bargain Purchase, Tax		7,400,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities		$ (1,900,000)
Maximum [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		10 years
Minimum [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		1 year

Business Acquisitions Business

Business Acquisitions Business Acquisition details (Details) - USD ($)	Aug. 01, 2016	Jan. 15, 2015	Dec. 31, 2016	Apr. 02, 2016
Business Acquisition [Line Items]
Shares Granted As Consideration - Contingent			$ 0
Business Combination Contingent Consideration Arrangements Shares Recovered			63,114
Business Combination Contingent Consideration Arrangement Shares Recovered price per share			$ 6.30
Visicon [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 3,300,000
Business Combination, Separately Recognized Transactions, Additional Disclosures, Acquisition Costs	1,200,000
Acquisition Costs, Period Cost	500,000
Payments to Acquire Businesses, Gross	$ 2,000,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	637,082
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned	$ 4,500,000
Business Acquisition Equity Interests Issued Or Issuable Number Of Shares Issued in Escrow	33,143
Topwin [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles				$ 3,500,000
Business Combination, Bargain Purchase, Total Gain		$ 3,600,000
Payments to Acquire Businesses, Gross		$ 7,600,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares		748,944
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned		$ 2,900,000
Developed Technology Rights [Member] | Visicon [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 2,000,000

Inventories - Components of Inv

Inventories - Components of Inventories (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Apr. 02, 2016
Inventory Disclosure [Abstract]
Raw materials and purchased parts	$ 40,405	$ 38,957
Work-in-process	14,196	14,270
Finished goods	4,229	7,243
Inventories	$ 58,830	$ 60,470

Trade Accounts Receivable (Deta

Trade Accounts Receivable (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Apr. 02, 2016
Trade Accounts Receivable [Abstract]
Accounts Receivable, Net, Noncurrent	$ 90	$ 320
Accounts Receivable, Net, Current	27,644	42,770
Accounts Receivable, Net	$ 27,734	$ 43,090

Other Current Assets (Details)

Other Current Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Apr. 02, 2016
Disclosure Other Current Assets [Abstract]
Prepaid expenses	$ 3,411	$ 2,747
Value added tax receivable	1,538	1,353
Other	954	1,240
Other current assets	$ 5,903	$ 5,340

Other Assets (Details)

Other Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Dec. 31, 2016	Jan. 02, 2016	Apr. 02, 2016
Other Assets, Noncurrent Disclosure [Abstract]
Demo equipment depreciation expense	$ 100	$ 200	$ 300	$ 400
Consignment and demo equipment, net	11,130		11,130		$ 7,242
Long term deposits	2,627		2,627		2,543
Accounts Receivable, Net, Noncurrent	90		90		320
Accounts Receivable, Net	27,734		27,734		43,090
Other	3,178		3,178		2,521
Other assets	$ 17,025		$ 17,025		$ 12,626

Other Assets Other assets other

Other Assets Other assets other details (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Dec. 31, 2016	Jan. 02, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Demo equipment depreciation expense	$ 0.1	$ 0.2	$ 0.3	$ 0.4

Accrued Liabilities (Details)

Accrued Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Apr. 02, 2016
Disclosure Accrued Liabilities [Abstract]
Payroll-related liabilities	$ 4,860	$ 5,717
Product Warranty Accrual, Current	4,136	3,666
Customer Deposits, Current	2,364	1,731
Purchase order commitments and receipts	1,256	2,588
Accrued Professional Fees, Current	914	1,052
Restructuring Reserve	620	757
Other	1,865	2,823
Accrued liabilities	16,015	18,334
Payables and Accruals [Abstract]
Deferred Compensation Liability, Classified, Noncurrent	3,101	2,504
Product Warranty Accrual, Noncurrent	775	2,068
Other Sundry Liabilities, Noncurrent	2,209	3,229
Liabilities, Other than Long-term Debt, Noncurrent	$ 6,085	$ 7,801

Product Warranty (Details)

Product Warranty (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Dec. 31, 2016	Jan. 02, 2016	Apr. 02, 2016
Product Warranty
Document Period End Date			Dec. 31, 2016
Product warranty accrual, beginning	$ 5,521	$ 4,451	$ 5,734	$ 3,342
Warranty charges incurred, net	(1,674)	(2,057)	(4,988)	(5,604)
Provision for warranty charges	1,064	2,292	4,165	6,948
Product warranty accrual, ending	4,911	$ 4,686	4,911	$ 4,686
Product Warranty Accrual, Noncurrent	$ 775		$ 775		$ 2,068

Deferred Revenue (Details)

Deferred Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Dec. 31, 2016	Jan. 02, 2016
Deferred Revenue Disclosure [Abstract]
Deferred Revenue, Noncurrent	$ 400		$ 400
Deferred Revenue; Beginning	11,583	$ 12,662	7,685	$ 12,376
Revenue deferred	9,075	13,868	28,547	47,459
Revenue recognized	(9,440)	(18,822)	(25,014)	(52,127)
Deferred Revenue; Ending	$ 11,218	$ 7,708	$ 11,218	$ 7,708

Earnings (Loss) Per Share - Rec

Earnings (Loss) Per Share - Reconciliation of Weighted Average Shares Outstanding Used in Calculation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Dec. 31, 2016	Jan. 02, 2016
Earnings Per Share [Abstract]
Net income (loss)	$ (9,693)	$ (4,586)	$ (19,486)	$ (14,210)
Weighted average number of shares - basic	32,919	31,495	32,379	31,355
Weighted average shares used for diluted earnings per share	32,919	31,495	32,379	31,355
Net (loss) income per share - basic	$ (0.29)	$ (0.15)	$ (0.60)	$ (0.45)
Net (loss) income per share - diluted	$ (0.29)	$ (0.15)	$ (0.60)	$ (0.45)

Earnings (Loss) Per Share - Add

Earnings (Loss) Per Share - Additional Information (Details) - shares shares in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Dec. 31, 2016	Jan. 02, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share
Number of shares that are not included in the calculation of diluted net earnings per share	2.8	2.9	2.5	2.6

Segment and Geographic Inform51

Segment and Geographic Information Net Sales by Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Dec. 31, 2016	Jan. 02, 2016
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	$ 33,779	$ 43,342	$ 111,105	$ 132,905
Component Processing [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	28,084	37,511	96,952	108,549
Micromachining [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	$ 5,695	$ 5,831	$ 14,153	$ 24,356

Segment and Geographic Inform52

Segment and Geographic Information Gross Profit by Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Dec. 31, 2016	Jan. 02, 2016
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Gross Profit	$ 11,448	$ 17,721	$ 43,236	$ 51,519
Component Processing [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Gross Profit	11,234	17,969	45,004	45,466
Micromachining [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Gross Profit	415	1,482	262	8,617
Corporate and Other [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Gross Profit	$ (201)	$ (1,730)	$ (2,030)	$ (2,564)

Segment and Geographic Inform53

Segment and Geographic Information Net Sales by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Dec. 31, 2016	Jan. 02, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 33,779	$ 43,342	$ 111,105	$ 132,905
Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	26,015	33,278	92,184	103,843
Americas [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	6,210	7,589	11,464	20,750
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 1,554	$ 2,475	$ 7,457	$ 8,312

Restructuring and Cost Manage54

Restructuring and Cost Management Plans - Amounts Related to Restructuring Costs Payable (Details) $ in Thousands	9 Months Ended
	Dec. 31, 2016USD ($)
Restructuring Reserve [Roll Forward]
Restructuring Reserve Start	$ 757
Other Restructuring Costs	297
Restructuring Reserve End	620
Restructuring, Settlement and Impairment Provisions	5,800
Restructuring, Settlement and Impairment Provisions	5,800
Chelmsford Plan [Domain]
Restructuring Reserve [Roll Forward]
Restructuring Reserve Start	757
Payments for Restructuring	297
Restructuring Reserve End	$ 460

Shareholders' Equity - Share re

Shareholders' Equity - Share repurchase (Details) $ in Millions	Dec. 09, 2011USD ($)
Statement of Stockholders' Equity [Abstract]
Stock Repurchase Program, Authorized Amount	$ 20

Subsequent Events (Details)

Subsequent Events (Details) - Facility Morgage Agreement Jan 9, 2017 [Member] - Mortgages [Member] - Subsequent Event [Member] - USD ($) $ in Millions	120 Months Ended
	Jan. 01, 2027	Jan. 09, 2017
Subsequent Event [Line Items]
Long-term Debt		$ 14
Debt Instrument, Interest Rate, Stated Percentage		5.00%
Debt Instrument, Term	20 years
Debt Instrument, Maturity Date	Jan. 1, 2027