Intevac (IVAC) 10-Q 28 Apr 20 2020 Q1 Quarterly report Financial data

Cover Page

Cover Page - shares	3 Months Ended
	Mar. 28, 2020	Apr. 28, 2020
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Entity Interactive Data Current	Yes
Document Period End Date	Mar. 28, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Entity Registrant Name	INTEVAC INC
Entity Central Index Key	0001001902
Current Fiscal Year End Date	--01-02
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Trading Symbol	IVAC
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity File Number	0-26946
Entity Tax Identification Number	94-3125814
Entity Address, Address Line One	3560 Bassett Street
Entity Address, City or Town	Santa Clara
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95054
City Area Code	408
Local Phone Number	986-9888
Entity Small Business	true
Title of 12(b) Security	Common Stock
Entity Common Stock, Shares Outstanding		23,489,111
Security Exchange Name	NASDAQ

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 28, 2020	Dec. 28, 2019
Current assets:
Cash and cash equivalents	$ 21,450	$ 19,767
Short-term investments	16,441	16,720
Trade and other accounts receivable, net of allowances of $0 at both March 28, 2020 and at December 28, 2019	23,021	28,619
Inventories	27,208	24,907
Prepaid expenses and other current assets	1,897	1,504
Total current assets	90,017	91,517
Long-term investments	4,549	5,537
Restricted cash	787	787
Property, plant and equipment, net	12,038	11,598
Operating lease right-of-use assets	9,730	10,279
Intangible assets, net of accumulated amortization of $8,267 at March 28, 2020 and $8,113 at December 28, 2019	120	274
Deferred income taxes and other long-term assets	6,138	6,330
Total assets	123,379	126,322
Current liabilities:
Current operating lease liabilities	2,614	2,524
Accounts payable	4,747	4,199
Accrued payroll and related liabilities	4,030	6,488
Other accrued liabilities	2,651	3,593
Customer advances	4,696	4,007
Total current liabilities	18,738	20,811
Noncurrent liabilities:
Noncurrent operating lease liabilities	8,819	9,532
Other long-term liabilities	153	186
Total noncurrent liabilities	8,972	9,718
Stockholders' equity:
Common stock, $0.001 par value	23	23
Additional paid-in capital	189,876	188,290
Treasury stock, 5,087 shares at March 28, 2020 and 4,989 shares at December 28, 2019	(29,551)	(29,158)
Accumulated other comprehensive income	331	424
Accumulated deficit	(65,010)	(63,786)
Total stockholders' equity	95,669	95,793
Total liabilities and stockholders' equity	$ 123,379	$ 126,322

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 28, 2020	Dec. 28, 2019
Statement of Financial Position [Abstract]
Net of allowances of trade, note and other accounts receivable	$ 0	$ 0
Net of amortization of intangible assets	$ 8,267	$ 8,113
Common stock, par value	$ 0.001	$ 0.001
Treasury stock, shares	5,087	4,989

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Net revenues:
Total net revenues	$ 18,840	$ 24,827
Cost of net revenues:
Total cost of net revenues	10,684	17,588
Gross profit	8,156	7,239
Operating expenses:
Research and development	3,284	3,986
Selling, general and administrative	5,972	5,252
Total operating expenses	9,256	9,238
Loss from operations	(1,100)	(1,999)
Interest income and other income (expense), net	142	160
Loss before provision for income taxes	(958)	(1,839)
Provision for income taxes	266	553
Net loss	$ (1,224)	$ (2,392)
Net loss per share:
Basic and Diluted	$ (0.05)	$ (0.10)
Weighted average shares outstanding:
Basic and Diluted	23,483	22,855
Systems and components
Net revenues:
Total net revenues	$ 13,836	$ 21,637
Cost of net revenues:
Total cost of net revenues	7,767	15,100
Technology development
Net revenues:
Total net revenues	5,004	3,190
Cost of net revenues:
Total cost of net revenues	$ 2,917	$ 2,488

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (1,224)	$ (2,392)
Other comprehensive income, before tax:
Change in unrealized net gain (loss) on available-for-sale investments	2	45
Foreign currency translation gains and (losses)	(95)	61
Other comprehensive income (loss), before tax	(93)	106
Income tax provision related to items in other comprehensive income	0	0
Other comprehensive income (loss), net of tax	(93)	106
Comprehensive loss	$ (1,317)	$ (2,286)

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Operating activities
Net loss	$ (1,224)	$ (2,392)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation & amortization	858	1,036
Net amortization (accretion) of investment premiums and discounts	(19)	(16)
Equity-based compensation	672	756
Straight-line rent adjustment and amortization of lease incentives	(74)	(85)
Change in the fair value of acquisition-related contingent consideration	0	7
Deferred income taxes	114	332
Loss on disposal of equipment	0	45
Changes in operating assets and liabilities	786	1,286
Total adjustments	2,337	3,361
Net cash provided by operating activities	1,113	969
Investing activities
Purchase of investments	(4,242)	(5,045)
Proceeds from sales and maturities of investments	5,530	8,396
Purchase of leasehold improvements and equipment	(1,145)	(371)
Net cash provided by investing activities	143	2,980
Financing activities
Proceeds from issuance of common stock	950	1,021
Common stock repurchases	(393)	0
Taxes paid related to net share settlement	(36)	(28)
Payment of acquisition-related contingent consideration	0	(98)
Net cash provided by financing activities	521	895
Effect of exchange rate changes on cash and cash equivalents	(94)	63
Net increase in cash, cash equivalents and restricted cash in cash, cash equivalents and restricted cash	1,683	4,907
Cash, cash equivalents and restricted cash at beginning of period	20,554	19,884
Cash, cash equivalents and restricted cash at end of period	$ 22,237	$ 24,791

Description of Business and Bas

Description of Business and Basis of Presentation	3 Months Ended
	Mar. 28, 2020
Accounting Policies [Abstract]
Description of Business and Basis of Presentation	1. Description of Business and Basis of Presentation Intevac, Inc. (together with its subsidiaries “Intevac,” the “Company” or “we”) is a provider of vacuum deposition equipment for a wide variety of thin-film applications, and a leading provider of digital night-vision technologies and products to the defense industry. The Company leverages its core capabilities in high-volume manufacturing of small substrates to provide process manufacturing equipment solutions to the hard disk drive (“HDD”), display cover panel (“DCP”), and photovoltaic (“PV”) solar cell industries. Intevac also provides sensors, cameras and systems for government applications such as night vision. Intevac’s customers include manufacturers of hard disk media, DCPs and solar cells as well as the U.S. government and its agencies, allies and contractors. Intevac reports two segments: Thin-film Equipment (“TFE”) and Photonics. In the opinion of management, the unaudited interim condensed consolidated financial statements of Intevac included herein have been prepared on a basis consistent with the December 28, 2019 audited consolidated financial statements and include all material adjustments, consisting of normal recurring adjustments, necessary to fairly present the information set forth therein. The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make judgments, estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ materially from those estimates. In March 2020, the World Health Organization characterized the coronavirus (“COVID-19”) COVID-19 COVID-19,

Revenue

Revenue	3 Months Ended
	Mar. 28, 2020
Revenue from Contract with Customer [Abstract]
Revenue	2. Revenue The following tables represent a disaggregation of revenue from contracts with customers for the three months ended March 28, 2020 and March 30, 2019 along with the reportable segment for each category. Major Products and Service Lines TFE Three Months Ended March 28, 2020 Three Months Ended March 30, 2019 (In thousands) HDD DCP PV Total HDD DCP PV Total Systems, upgrades and spare parts $ 6,361 $ — $ 208 $ 6,569 $ 11,050 $ — $ 6,373 $ 17,423 Field service 1,393 — — 1,393 1,522 — — 1,522 Total TFE net revenues $ 7,754 $ — $ 208 $ 7,962 $ 12,572 $ — $ 6,373 $ 18,945 Three Months Ended Photonics March 28, March 30, (In thousands) Products: Military products $ 5,365 $ 1,813 Commercial products 79 318 Repair and other services 430 561 Total Photonics product net revenues 5,874 2,692 Technology development: Firm Fixed Price (“FFP”) 4,430 1,692 Cost Plus Fixed Fee (“CPFF”) 574 1,496 Time and materials — 2 Total technology development net revenues 5,004 3,190 Total Photonics net revenues $ 10,878 $ 5,882 Primary Geographical Markets Three Months Ended March 28, 2020 March 30, 2019 (In thousands) TFE Photonics Total TFE Photonics Total United States $ 519 $ 10,856 $ 11,375 $ 161 $ 5,716 $ 5,877 Asia 7,443 — 7,443 18,784 — 18,784 Europe — 22 22 — 166 166 Total net revenues $ 7,962 $ 10,878 $ 18,840 $ 18,945 $ 5,882 $ 24,827 Timing of Revenue Recognition Three Months Ended March 28, 2020 March 30, 2019 (In thousands) TFE Photonics Total TFE Photonics Total Products transferred at a point in time $ 7,962 $ 430 $ 8,392 $ 18,945 $ 561 $ 19,506 Products and services transferred over time — 10,448 10,448 — 5,321 5,321 $ 7,962 $ 10,878 $ 18,840 $ 18,945 $ 5,882 $ 24,827 The following table reflects the changes in our contract assets, which we classify as accounts receivable, unbilled or retainage, and our contract liabilities, which we classify as deferred revenue and customer advances, for the three months ended March 28 2020. March 28, December 28, Three Months Change (In thousands) TFE: Contract assets: Accounts receivable, unbilled $ — $ 760 $ (760 ) Contract liabilities: Deferred revenue $ 486 $ 320 $ 166 Customer advances 4,696 4,007 689 $ 5,182 $ 4,327 $ 855 Photonics: Contract assets: Accounts receivable, unbilled $ 6,187 $ 3,210 $ 2,977 Retainage 103 99 4 $ 6,290 $ 3,309 $ 2,981 Accounts receivable, unbilled in our TFE segment represents a contract asset for revenue that has been recognized in advance of billing the customer. For our system and certain upgrade sales, our TFE customers generally pay in three installments, with a portion of the system price billed upon receipt of an order, a portion of the price billed upon shipment, and the balance of the price due upon completion of installation and acceptance of the system at the customer’s factory. Accounts receivable, unbilled in our TFE segment generally represents the balance of the system price that is due upon completion of installation and acceptance less, the amount that has been deferred as revenue for the performance of the installation tasks. During the three months ended March 28, 2020, contract assets in our TFE segment decreased by $760,000 primarily due to the recognition of revenue for the installation portion of revenue for two systems that completed installation and acceptance during the quarter. Customer advances in our TFE segment generally represent a contract liability for amounts billed to the customer prior to transferring goods. The Company has elected to use the practical expedient to disregard the effect of the time value of money in a significant financing component when its payment terms are less than one year. These contract advances are liquidated when revenue is recognized. Deferred revenue in our TFE segment generally represents a contract liability for amounts billed to a customer for completed systems at the customer site that are undergoing installation and acceptance testing where transfer of control has not yet occurred as Intevac does not yet have a demonstrated history of meeting the acceptance criteria upon the customer’s receipt of product. During the three months ended March 28, 2020, we recognized revenue in our TFE segment of $155,000 and $21,000 that was included in customer advances and deferred revenue, respectively, at the beginning of the period. Accounts receivable, unbilled in our Photonics segment represents a contract asset for revenue that has been recognized in advance of billing the customer, which is common for contracts in the defense industry. In our Photonics segment, amounts are billed as work progresses in accordance with agreed-upon contractual terms, either at periodic intervals (e.g., monthly) or upon achievement of contractual milestones. Generally, billing occurs subsequent to revenue recognition, resulting in contract assets. Our contracts with the U.S. government may also contain retainage provisions. Retainage represents a contract asset for the portion of the contract price earned by us for work performed, but held for payment by the U.S. government as a form of security until satisfactory completion of the contract. The retainage is billable upon completion of the contract performance and approval of final indirect expense rates by the government. During the three months ended March 28, 2020, contract assets in our Photonics segment increased by $3.0 million primarily due to the accrual of revenue for incurred costs under FFP and CPFF contracts. On March 28, 2020 we had $87.2 million of remaining performance obligations, which we also refer to as total backlog. Backlog at March 28, 2020 consisted of $22.4 million of TFE backlog and $64.8 million of Photonics backlog. We expect to recognize approximately 59% of our remaining performance obligations as revenue in 2020, 21% in 2021, 13% in 2022 and 7% in 2023.

Inventories

Inventories	3 Months Ended
	Mar. 28, 2020
Inventory Disclosure [Abstract]
Inventories	3. Inventories Inventories are stated at the lower of average cost or net realizable value and consist of the following: March 28, December 28, (In thousands) Raw materials $ 13,502 $ 15,286 Work-in-progress 7,272 4,748 Finished goods 6,434 4,873 $ 27,208 $ 24,907 Finished goods inventory at March 28, 2020 and at December 28, 2019 included one VERTEX SPECTRA system for DCP under evaluation at a customer’s factory and one MATRIX PVD system for advanced semiconductor packaging under evaluation at a customer’s factory.

Equity-Based Compensation

Equity-Based Compensation	3 Months Ended
	Mar. 28, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Equity-Based Compensation	4. Equity-Based Compensation At March 28, 2020, Intevac had equity-based awards outstanding under the 2012 Equity Incentive Plan and the 2004 Equity Incentive Plan (together, the “Plans”) and the 2003 Employee Stock Purchase Plan (the “ESPP”). Intevac’s stockholders approved all of these plans. The Plans permit the grant of incentive or non-statutory The ESPP provides that eligible employees may purchase Intevac’s common stock through payroll deductions at a price equal to 85% of the lower of the fair market value at the entry date of the applicable offering period or at the end of each applicable purchase interval. Offering periods are generally two years in length, and consist of a series of six-month six-month Compensation Expense The effect of recording equity-based compensation for the three-month periods ended March 28, 2020 and March 30, 2019 was as follows: Three Months Ended March 28, 2020 March 30, 2019 (In thousands) Equity-based compensation by type of award: Stock options $ 215 $ 206 RSUs 366 291 Employee stock purchase plan 91 259 Total equity-based compensation $ 672 $ 756 Stock Options and ESPP The fair value of stock options and ESPP awards is estimated at the grant date using the Black-Scholes option valuation model. The determination of fair value of stock options and ESPP awards on the date of grant using an option-pricing model is affected by Intevac’s stock price as well as assumptions regarding a number of highly complex and subjective variables. These variables include, but are not limited to, our expected stock price volatility over the term of the awards, and actual employee stock option exercise behavior. Option activity as of March 28, 2020 and changes during the three months ended March 28, 2020 were as follows: Shares Weighted-Average Options outstanding at December 28, 2019 2,096,610 $ 6.63 Options granted 6,000 $ 4.88 Options cancelled and forfeited (2,998 ) $ 6.70 Options exercised (41,214 ) $ 4.74 Options outstanding at March 28, 2020 2,058,398 $ 6.66 Options exercisable at March 28, 2020 1,304,343 $ 6.77 Intevac issued 189,833 shares of common stock under the ESPP during the three months ended March 28, 2020. Intevac estimated the weighted-average fair value of stock options and ESPP purchase rights using the following weighted-average assumptions: Three Months Ended March 28, 2020 March 30, 2019 Stock Options: Weighted-average fair value of grants per share $ 1.82 $ 2.28 Expected volatility 46.06 % 43.40 % Risk-free interest rate 0.44 % 2.21 % Expected term of options (in years) 4.39 4.32 Dividend yield None None ESPP Purchase Rights: Weighted-average fair value of grants per share $ 1.66 $ 1.89 Expected volatility 36.69 % 50.00 % Risk-free interest rate 1.56 % 2.53 % Expected term of purchase rights (in years) 0.5 1.0 Dividend yield None None The computation of the expected volatility assumptions used in the Black-Scholes calculations for new stock option grants and ESPP purchase rights is based on the historical volatility of Intevac’s stock price, measured over a period equal to the expected term of the stock option grant or purchase right. The risk-free interest rate is based on the yield available on U.S. Treasury Strips with an equivalent remaining term. The expected term of employee stock options represents the weighted-average period that the stock options are expected to remain outstanding and was determined based on historical experience of similar awards, giving consideration to the contractual terms of the equity-based awards and vesting schedules. The expected term of purchase rights represents the period of time remaining in the current offering period. The dividend yield assumption is based on Intevac’s history of not paying dividends and the assumption of not paying dividends in the future. Intevac accounts for forfeitures as they occur, rather than by estimating expected forfeitures. RSUs A summary of the RSU activity is as follows: Shares Weighted-Average Grant Date Fair Value Non-vested 553,355 $ 6.15 Granted 15,625 $ 5.09 Vested (15,611 ) $ 6.33 Cancelled and forfeited (248 ) $ 6.94 Non-vested 553,121 $ 6.11 Time-based RSUs are converted into shares of Intevac common stock upon vesting on a one-for-one

Purchased Intangible Assets

Purchased Intangible Assets	3 Months Ended
	Mar. 28, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Purchased Intangible Assets	5. Purchased Intangible Assets Details of finite-lived intangible assets by segment as of March 28, 2020, are as follows: March 28, 2020 Gross Accumulated Net (In thousands) TFE $ 7,172 $ (7,077 ) $ 95 Photonics 1,215 (1,190 ) 25 $ 8,387 $ (8,267 ) $ 120 Total amortization expense of finite-lived intangibles for the three months ended March 28, 2020 was $154,000. As of March 28, 2020, future amortization expense is expected to be as follows: (In thousands) 2020 $ 120

Acquisition-Related Contingent

Acquisition-Related Contingent Consideration	3 Months Ended
	Mar. 28, 2020
Business Combinations [Abstract]
Contingent Consideration	6. Acquisition-Related Contingent Consideration In connection with the acquisition of Solar Implant Technologies, Inc. (“SIT”), Intevac agreed to pay to the selling shareholders in cash a revenue earnout on Intevac’s net revenues from commercial sales of certain products over a specified period up to an aggregate of $9.0 million. The earnout period terminated on June 30, 2019. There is no remaining contingent consideration obligation associated with the earnout agreement at March 28, 2020. The following table represents a reconciliation of the change in the fair value measurement of the contingent consideration liability for the three-month period ended March 30, 2019. Three Months Ended March 30, 2019 (In thousands) Opening balance $ 223 Changes in fair value 7 Cash payments made (98 ) Closing balance $ 132

Warranty

Warranty	3 Months Ended
	Mar. 28, 2020
Guarantees [Abstract]
Warranty	7. Warranty Intevac provides for the estimated cost of warranty when revenue is recognized. Intevac’s warranty is subject to contract terms and, for its HDD manufacturing, DCP manufacturing and solar cell manufacturing systems, the warranty typically ranges between 12 and 24 months from customer acceptance. During this warranty period any defective non-consumable On the condensed consolidated balance sheets, the short-term portion of the warranty provision is included in other accrued liabilities, while the long-term portion is included in other long-term liabilities. The expense associated with product warranties issued or adjusted is included in cost of net revenues on the condensed consolidated statements of operations. The following table displays the activity in the warranty provision account for the three-month periods ended March 28, 2020 and March 30, 2019. Three Months Ended March 28, 2020 March 30, 2019 (In thousands) Opening balance $ 1,022 $ 997 Expenditures incurred under warranties (120 ) (167 ) Accruals for product warranties issued during the reporting period 25 324 Adjustments to previously existing warranty accruals (202 ) 143 Closing balance $ 725 $ 1,297 The following table displays the balance sheet classification of the warranty provision account at March 28 20 March 28 , December 28, 2020 2019 (In thousands) Other accrued liabilities $ 582 $ 846 Other long-term liabilities 143 176 Total warranty provision $ 725 $ 1,022

Guarantees

Guarantees	3 Months Ended
	Mar. 28, 2020
Guarantees [Abstract]
Guarantees	8. Guarantees Officer and Director Indemnifications As permitted or required under Delaware law and to the maximum extent allowable under that law, Intevac has certain obligations to indemnify its current and former officers and directors for certain events or occurrences while the officer or director is, or was, serving at Intevac’s request in such capacity. These indemnification obligations are valid as long as the director or officer acted in good faith and in a manner the person reasonably believed to be in or not opposed to the best interests of the Company and, with respect to any criminal action or proceeding, had no reasonable cause to believe his or her conduct was unlawful. The maximum potential amount of future payments Intevac could be required to make under these indemnification obligations is unlimited; however, Intevac has a director and officer insurance policy that mitigates Intevac’s exposure and enables Intevac to recover a portion of any future amounts paid. As a result of Intevac’s insurance policy coverage, Intevac believes the estimated fair value of these indemnification obligations is not material. Other Indemnifications As is customary in Intevac’s industry, many of Intevac’s contracts provide remedies to certain third parties such as defense, settlement, or payment of judgments for intellectual property claims related to the use of its products. Such indemnification obligations may not be subject to maximum loss clauses. Historically, payments made related to these indemnifications have been immaterial. Letters of Credit As of March 28, 2020, we had letters of credit and bank guarantees outstanding totaling $787,000, including the standby letter of credit outstanding under the Santa Clara, California facility lease and various other guarantees with our bank. These letters of credit and bank guarantees are collateralized by $787,000 of restricted cash.

Cash, Cash Equivalents and Inve

Cash, Cash Equivalents and Investments	3 Months Ended
	Mar. 28, 2020
Investments Debt And Equity Securities [Abstract]
Cash, Cash Equivalents and Investments	9. Cash, Cash Equivalents and Investments Cash and cash equivalents, short-term investments and long-term investments consist of: March 28, 2020 Amortized Cost Unrealized Unrealized Fair Value (In thousands) Cash and cash equivalents: Cash $ 17,782 $ — $ — $ 17,782 Money market funds 3,168 — — 3,168 Certificates of deposit 500 — — 500 Total cash and cash equivalents $ 21,450 $ — $ — $ 21,450 Short-term investments: Certificates of deposit $ 3,800 $ 5 $ 9 $ 3,796 Commercial paper 1,894 1 1 1,894 Corporate bonds and medium-term notes 7,309 5 8 7,306 U.S. treasury and agency securities 3,433 12 — 3,445 Total short-term investments $ 16,436 $ 23 $ 18 $ 16,441 Long-term investments: Certificates of deposit $ 999 $ 2 $ 14 $ 987 Corporate bonds and medium-term notes 1,015 3 — 1,018 U.S. treasury and agency securities 2,495 49 — 2,544 Total long-term investments $ 4,509 $ 54 $ 14 $ 4,549 Total cash, cash equivalents, and investments $ 42,395 $ 77 $ 32 $ 42,440 December 28, 2019 Amortized Cost Unrealized Unrealized Fair Value (in thousands) Cash and cash equivalents: Cash $ 16,512 $ — $ — $ 16,512 Money market funds 3,255 — — 3,255 Total cash and cash equivalents $ 19,767 $ — $ — $ 19,767 Short-term investments: Certificates of deposit $ 3,000 $ 1 $ — $ 3,001 Commercial paper 1,891 2 — 1,893 Corporate bonds and medium-term notes 6,383 25 — 6,408 U.S. treasury and agency securities 5,417 1 — 5,418 Total short-term investments $ 16,691 $ 29 $ — $ 16,720 Long-term investments: Certificates of deposit $ 499 $ 1 $ — $ 500 Corporate bonds and medium-term notes 2,530 12 — 2,542 U.S. treasury and agency securities 2,494 1 — 2,495 Total long-term investments $ 5,523 $ 14 $ — $ 5,537 Total cash, cash equivalents, and investments $ 41,981 $ 43 $ — $ 42,024 The contractual maturities of available-for-sale Amortized Cost Fair Value (In thousands) Due in one year or less $ 20,104 $ 20,109 Due after one through five years 4,509 4,549 $ 24,613 $ 24,658 The following table provides the fair market value of Intevac’s investments with unrealized losses that are not deemed to be other-than temporarily impaired as of March 28, 2020. March 28, 2020 In Loss Position for Less than 12 Months In Loss Position for Greater than 12 Months Fair Value Gross Unrealized Fair Value Gross Unrealized (In thousands) Certificates of deposit $ 2,176 $ 23 $ — $ — Commercial paper 896 1 — — Corporate bonds and medium-term notes 3,915 8 — — $ 6,987 $ 32 $ — $ — All prices for the fixed maturity securities including U.S. treasury and agency securities, certificates of deposit, commercial paper, corporate bonds, asset backed securities and municipal bonds are received from independent pricing services utilized by Intevac’s outside investment manager. This investment manager performs a review of the pricing methodologies and inputs utilized by the independent pricing services for each asset type priced by the vendor. In addition, on at least an annual basis, the investment manager conducts due diligence visits and interviews with each pricing vendor to verify the inputs utilized for each asset class. The due diligence visits include a review of the procedures performed by each vendor to ensure that pricing evaluations are representative of the price that would be received if a security were sold in an orderly transaction. Any pricing where the input is based solely on a broker price is deemed to be a Level 3 price. Intevac uses the pricing data obtained from its outside investment manager as the primary input to make its assessments and determinations as to the ultimate valuation of the above-mentioned securities and has not made, during the periods presented, any material adjustments to such inputs. The following table represents the fair value hierarchy of Intevac’s available-for-sale Fair Value Measurements at March 28, 2020 Total Level 1 Level 2 (In thousands) Recurring fair value measurements: Available-for-sale Money market funds $ 3,168 $ 3,168 $ — U.S. treasury and agency securities 5,989 5,989 — Certificates of deposit 5,283 — 5,283 Commercial paper 1,894 — 1,894 Corporate bonds and medium-term notes 8,324 — 8,324 Total recurring fair value measurements $ 24,658 $ 9,157 $ 15,501

Derivative Instruments

Derivative Instruments	3 Months Ended
	Mar. 28, 2020
Derivative Instrument Detail [Abstract]
Derivative Instruments	10. Derivative Instruments The Company uses foreign currency forward contracts to mitigate variability in gains and losses generated from the re-measurement re-measurement The following table summarizes the Company’s outstanding derivative instruments on a gross basis as recorded in its condensed consolidated balance sheets as of March 28, 2020 and December 28, 2019. Notional Amounts Derivative Liabilities Derivative Instrument March 28, December 28, March 28, December 28, Balance Sheet Line Fair Value Balance Sheet Line Fair Value (In thousands) Undesignated Hedges: Forward Foreign Currency Contracts $ 911 1,035 * $ — * $ 4 Total Hedges $ 911 1,035 $ — $ 4 * Other accrued liabilities

Equity

Equity	3 Months Ended
	Mar. 28, 2020
Equity [Abstract]
Equity	11. Equity Condensed Consolidated Statements of Changes in Equity The changes in stockholders’ equity by component for the three months ended March 28, 2020 and March 30, 2019, are as follows (in thousands): Three Months Ended March 28, 2020 Common Paid-in Treasury Accumulated Accumulated Total Balance at December 28, 2019 $ 188,313 $ (29,158 ) $ 424 $ (63,786 ) $ 95,793 Common stock issued under employee plans 914 — — — 914 Equity-based compensation expense 672 — — — 672 Net loss — — — (1,224 ) (1,224 ) Other comprehensive loss — — (93 ) — (93 ) Common stock repurchases — (393 ) — — (393 ) Balance at March 28, 2020 $ 189,899 $ (29,551 ) $ 331 $ (65,010 ) $ 95,669 Three Months Ended March 30, 2019 Common Paid-in Treasury Accumulated Accumulated Total Balance at December 29, 2018 $ 183,227 $ (29,047 ) $ 378 $ (64,934 ) $ 89,624 Common stock issued under employee plans 993 — — — 993 Equity-based compensation expense 756 — — — 756 Net loss — — — (2,392 ) (2,392 ) Other comprehensive income — — 106 — 106 Balance at March 30, 2019 $ 184,976 $ (29,047 ) $ 484 $ (67,326 ) $ 89,087 Accumulated Other Comprehensive Income The changes in accumulated other comprehensive income by component for the three months ended March 30, 2019 and March 31, 2019, are as follows: Three Months Ended March 28, 2020 March 30, 2019 Foreign Unrealized available- for-sale Total Foreign Unrealized available- for-sale Total (In thousands) Beginning balance $ 381 $ 43 $ 424 $ 405 $ (27 ) $ 378 Other comprehensive income (loss) before reclassification (95 ) 2 (93 ) 61 45 106 Amounts reclassified from other comprehensive income (loss) — — — — — — Net current-period other comprehensive income (loss) (95 ) 2 (93 ) 61 45 106 Ending balance $ 286 $ 45 $ 331 $ 466 $ 18 $ 484 Stock Repurchase Program On November 21, 2013, Intevac’s Board of Directors approved a stock repurchase program authorizing up to $30.0 million in repurchases. On August 15, 201 8 The following table summarizes Intevac’s stock repurchases: Three Months Ended March 28, 2020 March 30, 2019 (In thousands, except per share amounts) Shares of common stock repurchased 98 — Cost of stock repurchased $ 393 $ — Average price paid per share share $ 3.97 $ — Intevac records treasury stock purchases under the cost method using the first-in, first-out paid-in paid-in

Net Loss Per Share

Net Loss Per Share	3 Months Ended
	Mar. 28, 2020
Earnings Per Share [Abstract]
Net Loss Per Share	12. Net Loss Per Share The following table sets forth the computation of basic and diluted net loss per share. Three Months Ended March 28, 2020 March 30, 2019 (In thousands) Net loss $ (1,224 ) $ (2,392 ) Weighted-average shares – basic 23,483 22,855 Effect of dilutive potential common shares — — Weighted-average shares – diluted 23,483 22,855 Net loss per share – basic and diluted $ (0.05 ) $ (0.10 ) As the Company is in a net loss position, all of the Company’s equity instruments are considered antidilutive.

Segment Reporting

Segment Reporting	3 Months Ended
	Mar. 28, 2020
Segment Reporting [Abstract]
Segment Reporting	13. Segment Reporting Intevac’s two Each reportable segment is separately managed and has separate financial results that are reviewed by Intevac’s chief operating decision-maker. Each reportable segment contains closely related products that are unique to the particular segment. Segment operating profit is determined based upon internal performance measures used by the chief operating decision-maker. Intevac derives the segment results from its internal management reporting system. The accounting policies Intevac uses to derive reportable segment results are substantially the same as those used for external reporting purposes. Management measures the performance of each reportable segment based upon several metrics, including orders, net revenues and operating income. Management uses these results to evaluate the performance of, and to assign resources to, each of the reportable segments. Intevac manages certain operating expenses separately at the corporate level. Intevac allocates certain of these corporate expenses to the segments in an amount equal to 3 The TFE segment designs, develops and markets vacuum process equipment solutions for high-volume manufacturing of small substrates with precise thin-film properties, such as for the hard drive, solar cell and DCP industries, as well as other adjacent thin-film markets. The Photonics segment develops compact, cost-effective, high-sensitivity digital-optical products for the capture and display of low-light Information for each reportable segment for the three months ended March 28, 2020 and March 30, 2019 is as follows: Net Revenues Three Months Ended March 28, 2020 March 30, 2019 (In thousands) TFE $ 7,962 $ 18,945 Photonics 10,878 5,882 Total segment net revenues $ 18,840 $ 24,827 Operating Income (Loss) Three Months Ended March 28, 2020 March 30, 2019 (In thousands) TFE $ (2,531 ) $ (603 ) Photonics 2,912 (640 ) Total segment operating income (loss) 381 (1,243 ) Unallocated costs (1,481 ) (756 ) Loss from operations (1,100 ) (1,999 ) Interest income and other income (expense), net 142 160 Loss before provision for income taxes $ (958 ) $ (1,839 ) Total assets for each reportable segment as of March 28, 2020 and December 28, 2019 are as follows: Assets March 28, 2020 December 28, 2019 (In thousands) TFE $ 46,007 $ 51,153 Photonics 23,487 22,071 Total segment assets 69,494 73,244 Cash, cash equivalents and investments 42,440 42,024 Restricted cash 787 787 Deferred income taxes 6,138 6,252 Other current assets 1,195 752 Common property, plant and equipment 1,531 1,307 Common operating lease right-of-use 1,794 1,898 Other assets — 78 Consolidated total assets $ 123,379 $ 126,322

Income Taxes

Income Taxes	3 Months Ended
	Mar. 28, 2020
Income Tax Disclosure [Abstract]
Income Taxes	14. Income Taxes Intevac recorded income tax provisions of $266,000 for the three months ended March 28, 2020 and $553,000 for the three months ended March 30, 2019. The income tax provisions for the three month periods are based upon estimates of annual income (loss), annual permanent differences and statutory tax rates in the various jurisdictions in which Intevac operates. For the three-month period ended March 28, 2020 Intevac recorded a $165,000 income tax provision on earnings of its international subsidiaries and recorded $101,000 for withholding taxes on royalties paid to the United States from Intevac’s Singapore subsidiary as a discrete item. For the three-month period ended March 30, 2019 Intevac recorded a $362,000 income tax provision on earnings of its international subsidiaries and recorded $191,000 for withholding taxes on royalties paid to the United States from Intevac’s Singapore subsidiary as a discrete item. For all periods presented Intevac utilized net operating loss carry-forwards to offset the impact of the global intangible low-taxed The Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”) was enacted on March 27, 2020 in the United States. The CARES Act includes several significant provisions for corporations, including the usage of net operating losses and payroll benefits. Several foreign (non-U.S.) non-U.S.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 28, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	15. Commitments and Contingencies From time to time, Intevac may have certain contingent liabilities that arise in the ordinary course of its business activities. Intevac accounts for contingent liabilities when it is probable that future expenditures will be made and such expenditures can be reasonably estimated.

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 28, 2020
Subsequent Events [Abstract]
Subsequent Events	16. Subsequent Events On April 27, 2020, the Singapore government directed the Company to suspend all onsite activities at its factory in Singapore and remain closed until at least June 1, 2020. While this business disruption is expected to be temporary, the current circumstances are dynamic and the impacts of COVID-19 on the Company’s business operations, including the duration of disruptions to the Company’s operations, cannot be reasonably estimated at this time. The closure of its factory in Singapore significantly curtails the Company’s ability to meet its production demand and shipments for its TFE HDD customers during this closure period. Although these restrictions are currently scheduled to expire on June 1, 2020, there can be no assurance they will not be extended. The Company is currently petitioning the Singapore government for an exemption from these restrictions as an essential business.

Revenue (Tables)

Revenue (Tables)	3 Months Ended
	Mar. 28, 2020
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue from Contracts with Customers	The following tables represent a disaggregation of revenue from contracts with customers for the three months ended March 28, 2020 and March 30, 2019 along with the reportable segment for each category. Major Products and Service Lines TFE Three Months Ended March 28, 2020 Three Months Ended March 30, 2019 (In thousands) HDD DCP PV Total HDD DCP PV Total Systems, upgrades and spare parts $ 6,361 $ — $ 208 $ 6,569 $ 11,050 $ — $ 6,373 $ 17,423 Field service 1,393 — — 1,393 1,522 — — 1,522 Total TFE net revenues $ 7,754 $ — $ 208 $ 7,962 $ 12,572 $ — $ 6,373 $ 18,945 Three Months Ended Photonics March 28, March 30, (In thousands) Products: Military products $ 5,365 $ 1,813 Commercial products 79 318 Repair and other services 430 561 Total Photonics product net revenues 5,874 2,692 Technology development: Firm Fixed Price (“FFP”) 4,430 1,692 Cost Plus Fixed Fee (“CPFF”) 574 1,496 Time and materials — 2 Total technology development net revenues 5,004 3,190 Total Photonics net revenues $ 10,878 $ 5,882 Primary Geographical Markets Three Months Ended March 28, 2020 March 30, 2019 (In thousands) TFE Photonics Total TFE Photonics Total United States $ 519 $ 10,856 $ 11,375 $ 161 $ 5,716 $ 5,877 Asia 7,443 — 7,443 18,784 — 18,784 Europe — 22 22 — 166 166 Total net revenues $ 7,962 $ 10,878 $ 18,840 $ 18,945 $ 5,882 $ 24,827 Timing of Revenue Recognition Three Months Ended March 28, 2020 March 30, 2019 (In thousands) TFE Photonics Total TFE Photonics Total Products transferred at a point in time $ 7,962 $ 430 $ 8,392 $ 18,945 $ 561 $ 19,506 Products and services transferred over time — 10,448 10,448 — 5,321 5,321 $ 7,962 $ 10,878 $ 18,840 $ 18,945 $ 5,882 $ 24,827
Changes in Contract Assets and Contract Liabilities	The following table reflects the changes in our contract assets, which we classify as accounts receivable, unbilled or retainage, and our contract liabilities, which we classify as deferred revenue and customer advances, for the three months ended March 28 2020. March 28, December 28, Three Months Change (In thousands) TFE: Contract assets: Accounts receivable, unbilled $ — $ 760 $ (760 ) Contract liabilities: Deferred revenue $ 486 $ 320 $ 166 Customer advances 4,696 4,007 689 $ 5,182 $ 4,327 $ 855 Photonics: Contract assets: Accounts receivable, unbilled $ 6,187 $ 3,210 $ 2,977 Retainage 103 99 4 $ 6,290 $ 3,309 $ 2,981

Inventories (Tables)

Inventories (Tables)	3 Months Ended
	Mar. 28, 2020
Inventory Disclosure [Abstract]
Summary of Inventories	Inventories are stated at the lower of average cost or net realizable value and consist of the following: March 28, December 28, (In thousands) Raw materials $ 13,502 $ 15,286 Work-in-progress 7,272 4,748 Finished goods 6,434 4,873 $ 27,208 $ 24,907

Equity-Based Compensation (Tabl

Equity-Based Compensation (Tables)	3 Months Ended
	Mar. 28, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Effect of Recording Equity-Based Compensation	The effect of recording equity-based compensation for the three-month periods ended March 28, 2020 and March 30, 2019 was as follows: Three Months Ended March 28, 2020 March 30, 2019 (In thousands) Equity-based compensation by type of award: Stock options $ 215 $ 206 RSUs 366 291 Employee stock purchase plan 91 259 Total equity-based compensation $ 672 $ 756
Summary of Stock Option Activity	Option activity as of March 28, 2020 and changes during the three months ended March 28, 2020 were as follows: Shares Weighted-Average Options outstanding at December 28, 2019 2,096,610 $ 6.63 Options granted 6,000 $ 4.88 Options cancelled and forfeited (2,998 ) $ 6.70 Options exercised (41,214 ) $ 4.74 Options outstanding at March 28, 2020 2,058,398 $ 6.66 Options exercisable at March 28, 2020 1,304,343 $ 6.77
Employee Stock Options Weighted-Average Assumptions	Intevac estimated the weighted-average fair value of stock options and ESPP purchase rights using the following weighted-average assumptions: Three Months Ended March 28, 2020 March 30, 2019 Stock Options: Weighted-average fair value of grants per share $ 1.82 $ 2.28 Expected volatility 46.06 % 43.40 % Risk-free interest rate 0.44 % 2.21 % Expected term of options (in years) 4.39 4.32 Dividend yield None None ESPP Purchase Rights: Weighted-average fair value of grants per share $ 1.66 $ 1.89 Expected volatility 36.69 % 50.00 % Risk-free interest rate 1.56 % 2.53 % Expected term of purchase rights (in years) 0.5 1.0 Dividend yield None None
Summary of Restricted Stock Units Activity	A summary of the RSU activity is as follows: Shares Weighted-Average Grant Date Fair Value Non-vested 553,355 $ 6.15 Granted 15,625 $ 5.09 Vested (15,611 ) $ 6.33 Cancelled and forfeited (248 ) $ 6.94 Non-vested 553,121 $ 6.11

Purchased Intangible Assets (Ta

Purchased Intangible Assets (Tables)	3 Months Ended
	Mar. 28, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Information Regarding Other Acquisition Related Intangible Assets	Details of finite-lived intangible assets by segment as of March 28, 2020, are as follows: March 28, 2020 Gross Accumulated Net (In thousands) TFE $ 7,172 $ (7,077 ) $ 95 Photonics 1,215 (1,190 ) 25 $ 8,387 $ (8,267 ) $ 120
Estimated Future Amortization Expense Related to Finite-Lived Purchased Intangible Assets	As of March 28, 2020, future amortization expense is expected to be as follows: (In thousands) 2020 $ 120

Acquisition-Related Contingen_2

Acquisition-Related Contingent Consideration (Tables)	3 Months Ended
	Mar. 28, 2020
Business Combinations [Abstract]
Reconciliation of Change in Fair Value Measurement of Contingent Consideration Liability	The following table represents a reconciliation of the change in the fair value measurement of the contingent consideration liability for the three-month period ended March 30, 2019. Three Months Ended March 30, 2019 (In thousands) Opening balance $ 223 Changes in fair value 7 Cash payments made (98 ) Closing balance $ 132

Warranty (Tables)

Warranty (Tables)	3 Months Ended
	Mar. 28, 2020
Guarantees [Abstract]
Schedule of Product Warranty Liability	The following table displays the activity in the warranty provision account for the three-month periods ended March 28, 2020 and March 30, 2019. Three Months Ended March 28, 2020 March 30, 2019 (In thousands) Opening balance $ 1,022 $ 997 Expenditures incurred under warranties (120 ) (167 ) Accruals for product warranties issued during the reporting period 25 324 Adjustments to previously existing warranty accruals (202 ) 143 Closing balance $ 725 $ 1,297 The following table displays the balance sheet classification of the warranty provision account at March 28 20 March 28 , December 28, 2020 2019 (In thousands) Other accrued liabilities $ 582 $ 846 Other long-term liabilities 143 176 Total warranty provision $ 725 $ 1,022

Cash, Cash Equivalents and In_2

Cash, Cash Equivalents and Investments (Tables)	3 Months Ended
	Mar. 28, 2020
Investments, All Other Investments [Abstract]
Cash, Cash Equivalents and Short-Term Investments and Long-Term Investments	Cash and cash equivalents, short-term investments and long-term investments consist of: March 28, 2020 Amortized Cost Unrealized Unrealized Fair Value (In thousands) Cash and cash equivalents: Cash $ 17,782 $ — $ — $ 17,782 Money market funds 3,168 — — 3,168 Certificates of deposit 500 — — 500 Total cash and cash equivalents $ 21,450 $ — $ — $ 21,450 Short-term investments: Certificates of deposit $ 3,800 $ 5 $ 9 $ 3,796 Commercial paper 1,894 1 1 1,894 Corporate bonds and medium-term notes 7,309 5 8 7,306 U.S. treasury and agency securities 3,433 12 — 3,445 Total short-term investments $ 16,436 $ 23 $ 18 $ 16,441 Long-term investments: Certificates of deposit $ 999 $ 2 $ 14 $ 987 Corporate bonds and medium-term notes 1,015 3 — 1,018 U.S. treasury and agency securities 2,495 49 — 2,544 Total long-term investments $ 4,509 $ 54 $ 14 $ 4,549 Total cash, cash equivalents, and investments $ 42,395 $ 77 $ 32 $ 42,440 December 28, 2019 Amortized Cost Unrealized Unrealized Fair Value (in thousands) Cash and cash equivalents: Cash $ 16,512 $ — $ — $ 16,512 Money market funds 3,255 — — 3,255 Total cash and cash equivalents $ 19,767 $ — $ — $ 19,767 Short-term investments: Certificates of deposit $ 3,000 $ 1 $ — $ 3,001 Commercial paper 1,891 2 — 1,893 Corporate bonds and medium-term notes 6,383 25 — 6,408 U.S. treasury and agency securities 5,417 1 — 5,418 Total short-term investments $ 16,691 $ 29 $ — $ 16,720 Long-term investments: Certificates of deposit $ 499 $ 1 $ — $ 500 Corporate bonds and medium-term notes 2,530 12 — 2,542 U.S. treasury and agency securities 2,494 1 — 2,495 Total long-term investments $ 5,523 $ 14 $ — $ 5,537 Total cash, cash equivalents, and investments $ 41,981 $ 43 $ — $ 42,024
Contractual Maturities of Available-for-Sale Securities	The contractual maturities of available-for-sale Amortized Cost Fair Value (In thousands) Due in one year or less $ 20,104 $ 20,109 Due after one through five years 4,509 4,549 $ 24,613 $ 24,658
Fair Market Value of Investments with Unrealized Losses Not Deemed to be Other-Than Temporarily Impaired	The following table provides the fair market value of Intevac’s investments with unrealized losses that are not deemed to be other-than temporarily impaired as of March 28, 2020. March 28, 2020 In Loss Position for Less than 12 Months In Loss Position for Greater than 12 Months Fair Value Gross Unrealized Fair Value Gross Unrealized (In thousands) Certificates of deposit $ 2,176 $ 23 $ — $ — Commercial paper 896 1 — — Corporate bonds and medium-term notes 3,915 8 — — $ 6,987 $ 32 $ — $ —
Fair Value Hierarchy of Available-for-Sale Securities Measured at Fair Value on Recurring Basis	The following table represents the fair value hierarchy of Intevac’s available-for-sale Fair Value Measurements at March 28, 2020 Total Level 1 Level 2 (In thousands) Recurring fair value measurements: Available-for-sale Money market funds $ 3,168 $ 3,168 $ — U.S. treasury and agency securities 5,989 5,989 — Certificates of deposit 5,283 — 5,283 Commercial paper 1,894 — 1,894 Corporate bonds and medium-term notes 8,324 — 8,324 Total recurring fair value measurements $ 24,658 $ 9,157 $ 15,501

Derivative Instruments (Tables)

Derivative Instruments (Tables)	3 Months Ended
	Mar. 28, 2020
Derivative Instrument Detail [Abstract]
Summary of Outstanding Derivative Instruments on Gross Basis as Recorded in Consolidated Balance Sheets	The following table summarizes the Company’s outstanding derivative instruments on a gross basis as recorded in its condensed consolidated balance sheets as of March 28, 2020 and December 28, 2019. Notional Amounts Derivative Liabilities Derivative Instrument March 28, December 28, March 28, December 28, Balance Sheet Line Fair Value Balance Sheet Line Fair Value (In thousands) Undesignated Hedges: Forward Foreign Currency Contracts $ 911 1,035 * $ — * $ 4 Total Hedges $ 911 1,035 $ — $ 4 * Other accrued liabilities

Equity (Tables)

Equity (Tables)	3 Months Ended
	Mar. 28, 2020
Equity [Abstract]
Schedule of Changes in Stockholders' Equity	The changes in stockholders’ equity by component for the three months ended March 28, 2020 and March 30, 2019, are as follows (in thousands): Three Months Ended March 28, 2020 Common Paid-in Treasury Accumulated Accumulated Total Balance at December 28, 2019 $ 188,313 $ (29,158 ) $ 424 $ (63,786 ) $ 95,793 Common stock issued under employee plans 914 — — — 914 Equity-based compensation expense 672 — — — 672 Net loss — — — (1,224 ) (1,224 ) Other comprehensive loss — — (93 ) — (93 ) Common stock repurchases — (393 ) — — (393 ) Balance at March 28, 2020 $ 189,899 $ (29,551 ) $ 331 $ (65,010 ) $ 95,669 Three Months Ended March 30, 2019 Common Paid-in Treasury Accumulated Accumulated Total Balance at December 29, 2018 $ 183,227 $ (29,047 ) $ 378 $ (64,934 ) $ 89,624 Common stock issued under employee plans 993 — — — 993 Equity-based compensation expense 756 — — — 756 Net loss — — — (2,392 ) (2,392 ) Other comprehensive income — — 106 — 106 Balance at March 30, 2019 $ 184,976 $ (29,047 ) $ 484 $ (67,326 ) $ 89,087
Changes in Accumulated Other Comprehensive Income by Component	The changes in accumulated other comprehensive income by component for the three months ended March 30, 2019 and March 31, 2019, are as follows: Three Months Ended March 28, 2020 March 30, 2019 Foreign Unrealized available- for-sale Total Foreign Unrealized available- for-sale Total (In thousands) Beginning balance $ 381 $ 43 $ 424 $ 405 $ (27 ) $ 378 Other comprehensive income (loss) before reclassification (95 ) 2 (93 ) 61 45 106 Amounts reclassified from other comprehensive income (loss) — — — — — — Net current-period other comprehensive income (loss) (95 ) 2 (93 ) 61 45 106 Ending balance $ 286 $ 45 $ 331 $ 466 $ 18 $ 484
Schedule of Stock Repurchases	The following table summarizes Intevac’s stock repurchases: Three Months Ended March 28, 2020 March 30, 2019 (In thousands, except per share amounts) Shares of common stock repurchased 98 — Cost of stock repurchased $ 393 $ — Average price paid per share share $ 3.97 $ —

Net Loss Per Share (Tables)

Net Loss Per Share (Tables)	3 Months Ended
	Mar. 28, 2020
Earnings Per Share [Abstract]
Computation of Basic and Diluted Net Income Per Share	The following table sets forth the computation of basic and diluted net loss per share. Three Months Ended March 28, 2020 March 30, 2019 (In thousands) Net loss $ (1,224 ) $ (2,392 ) Weighted-average shares – basic 23,483 22,855 Effect of dilutive potential common shares — — Weighted-average shares – diluted 23,483 22,855 Net loss per share – basic and diluted $ (0.05 ) $ (0.10 )

Segment Reporting (Tables)

Segment Reporting (Tables)	3 Months Ended
	Mar. 28, 2020
Segment Reporting [Abstract]
Information for Each Reportable Segment	Information for each reportable segment for the three months ended March 28, 2020 and March 30, 2019 is as follows: Net Revenues Three Months Ended March 28, 2020 March 30, 2019 (In thousands) TFE $ 7,962 $ 18,945 Photonics 10,878 5,882 Total segment net revenues $ 18,840 $ 24,827 Operating Income (Loss) Three Months Ended March 28, 2020 March 30, 2019 (In thousands) TFE $ (2,531 ) $ (603 ) Photonics 2,912 (640 ) Total segment operating income (loss) 381 (1,243 ) Unallocated costs (1,481 ) (756 ) Loss from operations (1,100 ) (1,999 ) Interest income and other income (expense), net 142 160 Loss before provision for income taxes $ (958 ) $ (1,839 )
Segment Assets	Total assets for each reportable segment as of March 28, 2020 and December 28, 2019 are as follows: Assets March 28, 2020 December 28, 2019 (In thousands) TFE $ 46,007 $ 51,153 Photonics 23,487 22,071 Total segment assets 69,494 73,244 Cash, cash equivalents and investments 42,440 42,024 Restricted cash 787 787 Deferred income taxes 6,138 6,252 Other current assets 1,195 752 Common property, plant and equipment 1,531 1,307 Common operating lease right-of-use 1,794 1,898 Other assets — 78 Consolidated total assets $ 123,379 $ 126,322

Revenue -Disaggregation of Reve

Revenue -Disaggregation of Revenue from Contracts with Customers (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Disaggregation of Revenue [Line Items]
Total net revenues	$ 18,840	$ 24,827
TFE
Disaggregation of Revenue [Line Items]
Total net revenues	7,962	18,945
TFE | Systems, Upgrades and Spare Parts
Disaggregation of Revenue [Line Items]
Total net revenues	6,569	17,423
TFE | Field Service
Disaggregation of Revenue [Line Items]
Total net revenues	1,393	1,522
Photonics
Disaggregation of Revenue [Line Items]
Total net revenues	10,878	5,882
HDD | TFE
Disaggregation of Revenue [Line Items]
Total net revenues	7,754	12,572
HDD | TFE | Systems, Upgrades and Spare Parts
Disaggregation of Revenue [Line Items]
Total net revenues	6,361	11,050
HDD | TFE | Field Service
Disaggregation of Revenue [Line Items]
Total net revenues	1,393	1,522
DCP | TFE
Disaggregation of Revenue [Line Items]
Total net revenues
DCP | TFE | Systems, Upgrades and Spare Parts
Disaggregation of Revenue [Line Items]
Total net revenues
DCP | TFE | Field Service
Disaggregation of Revenue [Line Items]
Total net revenues
PV | TFE
Disaggregation of Revenue [Line Items]
Total net revenues	208	6,373
PV | TFE | Systems, Upgrades and Spare Parts
Disaggregation of Revenue [Line Items]
Total net revenues	208	6,373
PV | TFE | Field Service
Disaggregation of Revenue [Line Items]
Total net revenues
Military Products | Photonics
Disaggregation of Revenue [Line Items]
Total net revenues	5,365	1,813
Commercial Products | Photonics
Disaggregation of Revenue [Line Items]
Total net revenues	79	318
Repair and Other Services | Photonics
Disaggregation of Revenue [Line Items]
Total net revenues	430	561
Product | Photonics
Disaggregation of Revenue [Line Items]
Total net revenues	5,874	2,692
Firm Fixed Price [Member] | Photonics
Disaggregation of Revenue [Line Items]
Total net revenues	4,430	1,692
Cost Plus Fixed Fee [Member] | Photonics
Disaggregation of Revenue [Line Items]
Total net revenues	574	1,496
Times and Materials | Photonics
Disaggregation of Revenue [Line Items]
Total net revenues		2
Technology Development | Photonics
Disaggregation of Revenue [Line Items]
Total net revenues	$ 5,004	$ 3,190

Revenue - Primary Geography Mar

Revenue - Primary Geography Markets (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Disaggregation of Revenue [Line Items]
Total net revenues	$ 18,840	$ 24,827
Products Transferred at a Point in Time
Disaggregation of Revenue [Line Items]
Total net revenues	8,392	19,506
Products and Services Transferred Over Time
Disaggregation of Revenue [Line Items]
Total net revenues	10,448	5,321
United States
Disaggregation of Revenue [Line Items]
Total net revenues	11,375	5,877
Asia
Disaggregation of Revenue [Line Items]
Total net revenues	7,443	18,784
Europe
Disaggregation of Revenue [Line Items]
Total net revenues	22	166
TFE
Disaggregation of Revenue [Line Items]
Total net revenues	7,962	18,945
TFE | Products Transferred at a Point in Time
Disaggregation of Revenue [Line Items]
Total net revenues	7,962	18,945
TFE | United States
Disaggregation of Revenue [Line Items]
Total net revenues	519	161
TFE | Asia
Disaggregation of Revenue [Line Items]
Total net revenues	7,443	18,784
Photonics
Disaggregation of Revenue [Line Items]
Total net revenues	10,878	5,882
Photonics | Products Transferred at a Point in Time
Disaggregation of Revenue [Line Items]
Total net revenues	430	561
Photonics | Products and Services Transferred Over Time
Disaggregation of Revenue [Line Items]
Total net revenues	10,448	5,321
Photonics | United States
Disaggregation of Revenue [Line Items]
Total net revenues	10,856	5,716
Photonics | Asia
Disaggregation of Revenue [Line Items]
Total net revenues
Photonics | Europe
Disaggregation of Revenue [Line Items]
Total net revenues	$ 22	$ 166

Revenue - Changes in Contract A

Revenue - Changes in Contract Assets and Contract Liabilities (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 28, 2020	Dec. 28, 2019
TFE
Contract liabilities:
Contract liabilities	$ 5,182	$ 4,327
Contract liabilities:
Change in contract liabilities	855
TFE | Accounts Receivable, Unbilled
Contract assets:
Contract assets		760
Contract assets:
Change in contract assets	(760)
TFE | Deferred Revenue
Contract liabilities:
Contract liabilities	486	320
Contract liabilities:
Change in contract liabilities	166
TFE | Customer Advances
Contract liabilities:
Contract liabilities	4,696	4,007
Contract liabilities:
Change in contract liabilities	689
Photonics
Contract assets:
Contract assets	6,290	3,309
Contract assets:
Change in contract assets	2,981
Photonics | Accounts Receivable, Unbilled
Contract assets:
Contract assets	6,187	3,210
Contract assets:
Change in contract assets	2,977
Photonics | Retainage
Contract assets:
Contract assets	103	$ 99
Contract assets:
Change in contract assets	$ 4

Revenue - Additional Informatio

Revenue - Additional Information (Detail)	3 Months Ended
	Mar. 28, 2020USD ($)Installment
Revenue From Contract With Customers [Line Items]
Revenue remaining performance obligation	$ 87,200,000
TFE
Revenue From Contract With Customers [Line Items]
Revenue remaining performance obligation	$ 22,400,000
TFE | Accounts Receivable, Unbilled
Revenue From Contract With Customers [Line Items]
Number of installments | Installment	3
Change in contract assets	$ (760,000)
TFE | Customer Advances
Revenue From Contract With Customers [Line Items]
Contract with customer liability revenue recognized	155,000
TFE | Deferred Revenue
Revenue From Contract With Customers [Line Items]
Contract with customer liability revenue recognized	21,000
Photonics
Revenue From Contract With Customers [Line Items]
Change in contract assets	2,981,000
Revenue remaining performance obligation	64,800,000
Photonics | Accounts Receivable, Unbilled
Revenue From Contract With Customers [Line Items]
Change in contract assets	$ 2,977,000

Revenue - Additional Informat_2

Revenue - Additional Information (Detail 1)	Dec. 28, 2023	Mar. 28, 2022	Mar. 28, 2021	Mar. 28, 2020
Revenue From Contract With Customers [Line Items]
Revenue, remaining performance obligation, percentage				59.00%
Scenario Forecast
Revenue From Contract With Customers [Line Items]
Revenue, remaining performance obligation, percentage	7.00%	13.00%	21.00%

Equity-Based Compensation - Add

Equity-Based Compensation - Additional information (Detail)	3 Months Ended
	Mar. 28, 2020shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase of common stock through payroll deductions	85.00%
Offering periods	2 years
Maximum employee salary withholdings for purchase of common stock under the terms of the ESPP	15.00%
Stock issued under Employee Stock Purchase Plans	189,833
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award, vesting period	4 years

Equity-Based Compensation - Eff

Equity-Based Compensation - Effect of Recording Equity-Based Compensation (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation	$ 672	$ 756
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation	215	206
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation	366	291
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation	$ 91	$ 259

Equity-Based Compensation - Wei

Equity-Based Compensation - Weighted-Average Fair Value of Stock Options and Employee Stock Purchase Rights using Weighted-Average Assumptions (Detail) - $ / shares	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value of grants per share	$ 1.82	$ 2.28
Expected volatility	46.06%	43.40%
Risk free interest rate	0.44%	2.21%
Expected term of options (in years)	4 years 4 months 20 days	4 years 3 months 25 days
Dividend yield	0.00%	0.00%
Stock Purchase Rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value of grants per share	$ 1.66	$ 1.89
Expected volatility	36.69%	50.00%
Risk free interest rate	1.56%	2.53%
Expected term of options (in years)	6 months	1 year
Dividend yield	0.00%	0.00%

Equity-Based Compensation - Opt

Equity-Based Compensation - Option Activity and Changes (Detail) - $ / shares	3 Months Ended
	Mar. 28, 2020	Dec. 28, 2019
Shares
Options outstanding at December 29, 2018	2,096,610
Options granted	6,000
Options cancelled and forfeited	(2,998)
Options exercised	(41,214)
Options outstanding at December 28, 2019	2,058,398
Options exercisable at December 28, 2019		1,304,343
Weighted-Average Exercise Price
Options outstanding at December 29, 2018	$ 6.63
Options granted	4.88
Options cancelled and forfeited	6.70
Options exercised	4.74
Options outstanding at December 28, 2019	$ 6.66
Options exercisable at December 28, 2019		$ 6.77

Equity-Based Compensation - Sum

Equity-Based Compensation - Summary of Restricted Stock Units Activity (Detail) - Restricted Stock Units (RSUs)	3 Months Ended
	Mar. 28, 2020$ / sharesshares
Shares
Non-vested RSUs at December 28, 2019 | shares	553,355
Granted | shares	15,625
Vested | shares	(15,611)
Cancelled | shares	(248)
Non-vested RSUs at March 28, 2020 | shares	553,121
Weighted Average Grant Date Fair Value
Non-vested RSUs at December 28, 2019 | $ / shares	$ 6.15
Granted | $ / shares	5.09
Vested | $ / shares	6.33
Cancelled | $ / shares	6.94
Non-vested RSUs at March 28, 2020 | $ / shares	$ 6.11

Inventories - Inventories State

Inventories - Inventories Stated at Lower of Average Cost or Net Realizable Value (Detail) - USD ($) $ in Thousands	Mar. 28, 2020	Dec. 28, 2019
Inventory Disclosure [Abstract]
Raw materials	$ 13,502	$ 15,286
Work-in-progress	7,272	4,748
Finished goods	6,434	4,873
Inventories	$ 27,208	$ 24,907

Purchased Intangible Assets - A

Purchased Intangible Assets - Additional Information (Detail)	3 Months Ended
	Mar. 28, 2020USD ($)
Business Combination Segment Allocation [Line Items]
Total amortization expense of finite-lived intangibles	$ 154,000

Purchased Intangible Assets - D

Purchased Intangible Assets - Details of Finite-lived Intangible Assets by Segment (Detail) - USD ($) $ in Thousands	Mar. 28, 2020	Dec. 28, 2019
Finite-Lived Intangible Assets [Line Items]
Finite Lived, Gross Carrying Amount	$ 8,387
Accumulated Amortization	(8,267)	$ (8,113)
Finite Lived, Net Carrying Amount	120	$ 274
TFE
Finite-Lived Intangible Assets [Line Items]
Finite Lived, Gross Carrying Amount	7,172
Accumulated Amortization	(7,077)
Finite Lived, Net Carrying Amount	95
Photonics
Finite-Lived Intangible Assets [Line Items]
Finite Lived, Gross Carrying Amount	1,215
Accumulated Amortization	(1,190)
Finite Lived, Net Carrying Amount	$ 25

Purchased Intangible Assets - F

Purchased Intangible Assets - Future Amortization Expense (Detail) $ in Thousands	Mar. 28, 2020USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2020	$ 120

Acquisition-Related Contingen_3

Acquisition-Related Contingent Consideration - Additional Information (Detail) $ in Millions	Nov. 19, 2010USD ($)
Solar Implant Technologies | Revenue Earnout
Business Acquisition [Line Items]
Maximum amount of cash potentially earned in contingent compensation arrangements	$ 9

Acquisition-Related Contingen_4

Acquisition-Related Contingent Consideration - Reconciliation of Change in Fair Value Measurement of Contingent Consideration Liability (Detail) $ in Thousands	3 Months Ended
	Mar. 28, 2020USD ($)
Business Combinations [Abstract]
Beginning balance	$ 223
Changes in fair value	7
Cash payments made	(98)
Ending balance	$ 132

Warranty - Additional Informati

Warranty - Additional Information (Detail)	3 Months Ended
	Mar. 28, 2020
Guarantees [Abstract]
Minimum product warranty range	12 months
Maximum product warranty range	24 months

Warranty - Balance Sheet Classi

Warranty - Balance Sheet Classification of Warranty Provision Account (Detail) - USD ($) $ in Thousands	Mar. 28, 2020	Dec. 28, 2019	Mar. 30, 2019	Dec. 29, 2018
Guarantees [Abstract]
Other accrued liabilities	$ 582	$ 846
Other long-term liabilities	143	176
Total warranty provision	$ 725	$ 1,022	$ 1,297	$ 997

Guarantees - Additional Informa

Guarantees - Additional Information (Detail)	Mar. 28, 2020USD ($)
Guarantees [Abstract]
Letters of credit and bank guarantees outstanding, amount	$ 787,000
Letters of credit and bank guarantees collateralized by restricted cash	$ 787,000

Cash, Cash Equivalents and In_3

Cash, Cash Equivalents and Investments - Cash, Cash Equivalents and Short-Term Investments and Long-Term Investments (Detail) - USD ($) $ in Thousands	Mar. 28, 2020	Dec. 28, 2019
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 42,395	$ 41,981
Unrealized Holding Gains	77	43
Unrealized Holding Losses	32	0
Fair Value	42,440	42,024
Cash and Cash Equivalents
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	21,450	19,767
Fair Value	21,450	19,767
Cash and Cash Equivalents | Cash
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	17,782	16,512
Fair Value	17,782	16,512
Cash and Cash Equivalents | Money market funds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	3,168	3,255
Fair Value	3,168	3,255
Cash and Cash Equivalents | Certificates of deposit
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	500
Fair Value	500
Short-term Investments
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	16,436	16,691
Unrealized Holding Gains	23	29
Unrealized Holding Losses	18	0
Fair Value	16,441	16,720
Short-term Investments | Corporate bonds and medium-term notes
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	7,309	6,383
Unrealized Holding Gains	5	25
Unrealized Holding Losses	8	0
Fair Value	7,306	6,408
Short-term Investments | U.S. treasury and agency securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	3,433	5,417
Unrealized Holding Gains	12	1
Fair Value	3,445	5,418
Short-term Investments | Certificates of deposit
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	3,800	3,000
Unrealized Holding Gains	5	1
Unrealized Holding Losses	9	0
Fair Value	3,796	3,001
Short-term Investments | Commercial paper
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,894	1,891
Unrealized Holding Gains	1	2
Unrealized Holding Losses	1	0
Fair Value	1,894	1,893
Long-term Investments
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	4,509	5,523
Unrealized Holding Gains	54	14
Unrealized Holding Losses	14	0
Fair Value	4,549	5,537
Long-term Investments | Corporate bonds and medium-term notes
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,015	2,530
Unrealized Holding Gains	3	12
Unrealized Holding Losses		0
Fair Value	1,018	2,542
Long-term Investments | U.S. treasury and agency securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	2,495	2,494
Unrealized Holding Gains	49	1
Unrealized Holding Losses	0	0
Fair Value	2,544	2,495
Long-term Investments | Certificates of deposit
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	999	499
Unrealized Holding Gains	2	1
Unrealized Holding Losses	14
Fair Value	$ 987	$ 500

Cash, Cash Equivalents and In_4

Cash, Cash Equivalents and Investments - Contractual Maturities of Available-For-Sale Securities (Detail) $ in Thousands	Mar. 28, 2020USD ($)
Investments Debt And Equity Securities [Abstract]
Amortized Cost, Due in one year or less	$ 20,104
Amortized Cost, Due after one through five years	4,509
Amortized Cost	24,613
Fair Value, Due in one year or less	20,109
Fair Value, Due after one through five years	4,549
Fair Value	$ 24,658

Cash, Cash Equivalents and In_5

Cash, Cash Equivalents and Investments - Fair Market Value of Investments with Unrealized Losses Not Deemed to be Other-Than Temporarily Impaired (Detail) $ in Thousands	Mar. 28, 2020USD ($)
Debt Securities, Available-for-sale [Line Items]
Unrealized Loss Position, Less than 12 Months, Fair Value	$ 6,987
Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	32
Unrealized Loss Position, Greater than 12 Months, Fair Value	0
Unrealized Loss Position, Greater than 12 Months, Gross Unrealized Losses	0
Certificates of deposit
Debt Securities, Available-for-sale [Line Items]
Unrealized Loss Position, Less than 12 Months, Fair Value	2,176
Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	23
Unrealized Loss Position, Greater than 12 Months, Fair Value	0
Unrealized Loss Position, Greater than 12 Months, Gross Unrealized Losses	0
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Unrealized Loss Position, Less than 12 Months, Fair Value	896
Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	1
Unrealized Loss Position, Greater than 12 Months, Fair Value	0
Unrealized Loss Position, Greater than 12 Months, Gross Unrealized Losses	0
Corporate bonds and medium-term notes
Debt Securities, Available-for-sale [Line Items]
Unrealized Loss Position, Less than 12 Months, Fair Value	3,915
Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	8
Unrealized Loss Position, Greater than 12 Months, Fair Value	0
Unrealized Loss Position, Greater than 12 Months, Gross Unrealized Losses	$ 0

Cash, Cash Equivalents and In_6

Cash, Cash Equivalents and Investments - Fair Value Hierarchy of Available-for-Sale Securities Measured at Fair Value on Recurring Basis (Detail) $ in Thousands	Mar. 28, 2020USD ($)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total recurring fair value measurements	$ 24,658
Fair Value, Measurements, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total recurring fair value measurements	24,658
Fair Value, Measurements, Recurring | Money market funds
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total recurring fair value measurements	3,168
Fair Value, Measurements, Recurring | Certificates of deposit
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total recurring fair value measurements	5,283
Fair Value, Measurements, Recurring | Commercial paper
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total recurring fair value measurements	1,894
Fair Value, Measurements, Recurring | U.S. treasury and agency securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total recurring fair value measurements	5,989
Fair Value, Measurements, Recurring | Corporate bonds and medium-term notes
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total recurring fair value measurements	8,324
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total recurring fair value measurements	9,157
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | Money market funds
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total recurring fair value measurements	3,168
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | U.S. treasury and agency securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total recurring fair value measurements	5,989
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total recurring fair value measurements	15,501
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Certificates of deposit
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total recurring fair value measurements	5,283
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Commercial paper
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total recurring fair value measurements	1,894
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Corporate bonds and medium-term notes
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total recurring fair value measurements	$ 8,324

Derivative Instruments - Additi

Derivative Instruments - Additional Information (Detail)	3 Months Ended
	Mar. 28, 2020
Derivative Instrument Detail [Abstract]
Maturity of foreign currency derivative	30 days

Derivative Instruments - Summar

Derivative Instruments - Summary of Outstanding Derivative Instruments on Gross Basis as Recorded in Consolidated Balance Sheets (Detail) - Undesignated Hedges - USD ($) $ in Thousands	Mar. 28, 2020	Dec. 28, 2019
Derivatives, Fair Value [Line Items]
Notional Amounts	$ 911	$ 1,035
Derivative Liabilities	0	4
Forward Foreign Currency Contracts
Derivatives, Fair Value [Line Items]
Notional Amounts	911	1,035
Derivative Liabilities	$ 0	$ 4

Equity - Schedule of Changes in

Equity - Schedule of Changes in Stockholders' Equity (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Class of Stock [Line Items]
Beginning balance	$ 95,793	$ 89,624
Common stock issued under employee plans	914	993
Equity-based compensation expense	672	756
Net loss	(1,224)	(2,392)
Other comprehensive loss	(93)	106
Common stock repurchases	(393)
Ending balance	95,669	89,087
Common Stock and Additional Paid-in Capital
Class of Stock [Line Items]
Beginning balance	188,313	183,227
Common stock issued under employee plans	914	993
Equity-based compensation expense	672	756
Ending balance	189,899	184,976
Treasury Stock
Class of Stock [Line Items]
Beginning balance	(29,158)	(29,047)
Common stock repurchases	(393)
Ending balance	(29,551)	(29,047)
Accumulated Other Comprehensive Income
Class of Stock [Line Items]
Beginning balance	424	378
Other comprehensive loss	(93)	106
Ending balance	331	484
Accumulated Deficit
Class of Stock [Line Items]
Beginning balance	(63,786)	(64,934)
Net loss	(1,224)	(2,392)
Ending balance	$ (65,010)	$ (67,326)

Equity - Changes in Accumulated

Equity - Changes in Accumulated Other Comprehensive Income by Component (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ 95,793	$ 89,624
Other comprehensive income (loss), net of tax	(93)	106
Ending balance	95,669	89,087
Foreign currency
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	381	405
Other comprehensive income (loss) before reclassification	(95)	61
Other comprehensive income (loss), net of tax	(95)	61
Ending balance	286	466
Unrealized holding gains (losses) on available- for-sale investments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	43	(27)
Other comprehensive income (loss) before reclassification	2	45
Other comprehensive income (loss), net of tax	2	45
Ending balance	45	18
Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	424	378
Other comprehensive income (loss) before reclassification	(93)	106
Other comprehensive income (loss), net of tax	(93)	106
Ending balance	$ 331	$ 484

Equity - Additional Information

Equity - Additional Information (Detail) - USD ($) $ in Millions	Aug. 15, 2018	Mar. 28, 2020	Nov. 21, 2013
Equity [Abstract]
Stock repurchase authorized amount	$ 40		$ 30
Increase in stock repurchase program	$ 10
Stock repurchase remained available for future stock repurchase		$ 10.4

Equity - Schedule of Stock Repu

Equity - Schedule of Stock Repurchases (Detail) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 28, 2020USD ($)$ / sharesshares
Equity [Abstract]
Shares of common stock repurchased | shares	98
Cost of stock repurchased | $	$ 393
Average price paid per share | $ / shares	$ 3.97

Net Loss Per Share - Computatio

Net Loss Per Share - Computation of Basic and Diluted Net Income Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Earnings Per Share [Abstract]
Net loss	$ (1,224)	$ (2,392)
Weighted-average shares – basic	23,483	22,855
Weighted-average shares – diluted	23,483	22,855
Net loss per share - basic and diluted	$ (0.05)	$ (0.10)

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Income Taxes [Line Items]
Provision for income taxes	$ 266	$ 553
Income tax provision on earnings of subsidiaries	165	362
Foreign Tax Authority | Singapore
Income Taxes [Line Items]
Income tax charge (benefit)	$ 101	$ 191

Warranty - Activity in Warranty

Warranty - Activity in Warranty Provision Account (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Guarantees [Abstract]
Opening balance	$ 1,022	$ 997
Expenditures incurred under warranties	(120)	(167)
Accruals for product warranties issued during the reporting period	25	324
Adjustments to previously existing warranty accruals	(202)	143
Closing balance	$ 725	$ 1,297

Segment Reporting - Additional

Segment Reporting - Additional Information (Detail)	3 Months Ended
	Mar. 28, 2020Segment
Segment Reporting [Abstract]
Number of reportable segments	2
Allocation of corporate expenses to the segments	3.00%

Segment Reporting - Information

Segment Reporting - Information for Each Reportable Segment (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Segment Reporting Information [Line Items]
Total segment net revenues	$ 18,840	$ 24,827
Operating income (loss)	(1,100)	(1,999)
Interest income	142	160
Income (loss) before income taxes	(958)	(1,839)
TFE
Segment Reporting Information [Line Items]
Total segment net revenues	7,962	18,945
Photonics
Segment Reporting Information [Line Items]
Total segment net revenues	10,878	5,882
Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)	381	(1,243)
Operating Segments | TFE
Segment Reporting Information [Line Items]
Operating income (loss)	(2,531)	(603)
Operating Segments | Photonics
Segment Reporting Information [Line Items]
Operating income (loss)	2,912	(640)
Unallocated Amount to Segment
Segment Reporting Information [Line Items]
Unallocated costs	$ (1,481)	$ (756)

Segment Reporting - Assets for

Segment Reporting - Assets for Each Reportable Segment (Detail) - USD ($) $ in Thousands	Mar. 28, 2020	Dec. 28, 2019
Segment Reporting, Asset Reconciling Item [Line Items]
Consolidated total assets	$ 123,379	$ 126,322
Cash and investments	42,440	42,024
Restricted cash	787	787
Deferred income taxes	6,138	6,252
Other current assets	1,195	752
Common property, plant and equipment	1,531	1,307
Common operating lease right-of-use assets	1,794	1,898
Other assets	0	78
Operating Segments
Segment Reporting, Asset Reconciling Item [Line Items]
Consolidated total assets	69,494	73,244
Operating Segments | TFE
Segment Reporting, Asset Reconciling Item [Line Items]
Consolidated total assets	46,007	51,153
Operating Segments | Photonics
Segment Reporting, Asset Reconciling Item [Line Items]
Consolidated total assets	$ 23,487	$ 22,071