10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q

☒ Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the quarterly period ended April 3, 2021

or

☐ Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the transition period from                      to                     

Commission File Number 0-7087

ASTRONICS CORPORATION

(Exact name of registrant as specified in its charter)

New York (State or other jurisdiction of incorporation or organization)	16-0959303 (IRS Employer Identification Number)
130 Commerce Way, East Aurora, New York (Address of principal executive offices)	14052 (Zip code)

(716) 805-1599

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act: None

Securities registered pursuant to Section 12(g) of the Act:

Title of each class	Trading Symbol	Name of each exchange on which registered
Common Stock, $.01 par value per share	ATRO	NASDAQ Stock Market

NOT APPLICABLE

(Former name, former address and former fiscal year, if changed since last report)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months, and (2) has been subject to such filing requirements for the past 90 days.    Yes  ý    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (Section 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  ý    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer. See definition of “large accelerated filer”, an “accelerated filer”, a “non-accelerated filer” and a “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer	☐	Accelerated filer	☒	Emerging growth company	☐
Non-accelerated filer	☐	Smaller Reporting Company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a)

of the Exchange Act. ¨

 Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ☐    No  ý

As of May 3, 2021, 30,925,071 shares of common stock were outstanding consisting of 24,478,464 shares of common stock ($.01 par value) and 6,446,607 shares of Class B common stock ($.01 par value).

TABLE OF CONTENTS

				PAGE
PART I	FINANCIAL INFORMATION
	Item 1	Financial Statements:
		•	Consolidated Condensed Balance Sheets as of April 3, 2021 and December 31, 2020	3
		•	Consolidated Condensed Statements of Operations for the Three Months Ended April 3, 2021 and March 28, 2020	4
		•	Consolidated Condensed Statements of Comprehensive (Loss) Income for the Three Months Ended April 3, 2021 and March 28, 2020	5
		•	Consolidated Condensed Statements of Cash Flows for the Three Months Ended April 3, 2021 and March 28, 2020	6
		•	Consolidated Condensed Statements of Shareholders' Equity for the Three Months Ended April 3, 2021 and March 28, 2020	7
		•	Notes to Consolidated Condensed Financial Statements	9
	Item 2	Management’s Discussion and Analysis of Financial Condition and Results of Operations		25
	Item 3	Quantitative and Qualitative Disclosures about Market Risk		31
	Item 4	Controls and Procedures		32
PART II	OTHER INFORMATION
	Item 1	Legal Proceedings		33
	Item 1a	Risk Factors		33
	Item 2	Unregistered Sales of Equity Securities and Use of Proceeds		33
	Item 3	Defaults Upon Senior Securities		33
	Item 4	Mine Safety Disclosures		33
	Item 5	Other Information		33
	Item 6	Exhibits		34
SIGNATURES				35

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Part I – Financial Information

Item 1. Financial Statements

ASTRONICS CORPORATION

Consolidated Condensed Balance Sheets

April 3, 2021 with Comparative Figures for December 31, 2020

(Unaudited)

(In thousands)

	April 3, 2021		December 31, 2020
Current Assets:
Cash and Cash Equivalents	$	30,729	$	40,412
Accounts Receivable, Net of Allowance for Estimated Credit Losses	98,701		93,056
Inventories	155,254		157,059
Prepaid Expenses and Other Current Assets	25,552		26,420
Total Current Assets	310,236		316,947
Property, Plant and Equipment, Net of Accumulated Depreciation	104,931		106,678
Operating Right-of-Use Assets	17,750		18,953
Other Assets	8,813		8,999
Intangible Assets, Net of Accumulated Amortization	105,930		109,886
Goodwill	58,297		58,282
Total Assets	$	605,957	$	619,745
Current Liabilities:
Accounts Payable	$	22,216	$	26,446
Current Operating Lease Liabilities	4,856		4,998
Accrued Expenses and Other Current Liabilities	40,723		37,721
Customer Advance Payments and Deferred Revenue	27,407		24,571
Total Current Liabilities	95,202		93,736
Long-term Debt	173,000		173,000
Long-term Operating Lease Liabilities	15,415		16,637
Other Liabilities	62,036		66,001
Total Liabilities	345,653		349,374
Shareholders’ Equity:
Common Stock	347		347
Accumulated Other Comprehensive Loss	(16,653)		(16,450)
Other Shareholders’ Equity	276,610		286,474
Total Shareholders’ Equity	260,304		270,371
Total Liabilities and Shareholders’ Equity	$	605,957	$	619,745

See notes to consolidated condensed financial statements.

3

ASTRONICS CORPORATION

Consolidated Condensed Statements of Operations

Three Months Ended April 3, 2021 With Comparative Figures for 2020

(Unaudited)

(In thousands, except per share data)

	Three Months Ended
	April 3, 2021		March 28, 2020
Sales	$	105,857	$	157,584
Cost of Products Sold	91,584		121,865
Gross Profit	14,273		35,719
Selling, General and Administrative Expenses	23,785		28,867
Impairment Loss	—		74,408
Loss from Operations	(9,512)		(67,556)
Other Expense, Net of Other Income	534		388
Interest Expense, Net of Interest Income	1,758		1,333
Loss Before Income Taxes	(11,804)		(69,277)
Provision for (Benefit from) Income Taxes	105		(2,314)
Net Loss	$	(11,909)	$	(66,963)
Loss Per Share:
Basic	$	(0.39)	$	(2.17)
Diluted	$	(0.39)	$	(2.17)

See notes to consolidated condensed financial statements.

4

ASTRONICS CORPORATION

Consolidated Condensed Statements of Comprehensive (Loss) Income

Three Months Ended April 3, 2021 With Comparative Figures for 2020

(Unaudited)

(In thousands)

	Three Months Ended
	April 3, 2021		March 28, 2020
Net Loss	$	(11,909)	$	(66,963)
Other Comprehensive (Loss) Income:
Foreign Currency Translation Adjustments	(637)		(2,304)
Retirement Liability Adjustment – Net of Tax	434		215
Total Other Comprehensive Loss	(203)		(2,089)
Comprehensive Loss	$	(12,112)	$	(69,052)

See notes to consolidated condensed financial statements.

5

ASTRONICS CORPORATION

Consolidated Condensed Statements of Cash Flows

Three Months Ended April 3, 2021 With Comparative Figures for 2020

(Unaudited, In thousands)	Three Months Ended
Cash Flows from Operating Activities:	April 3, 2021		March 28, 2020
Net Loss	$	(11,909)	$	(66,963)
Adjustments to Reconcile Net Loss to Cash Flows from Operating Activities:
Depreciation and Amortization	7,453		7,971
Provisions for Non-Cash Losses on Inventory and Receivables	1,269		872
Equity-based Compensation Expense	2,097		1,703
Deferred Tax (Benefit) Expense	(51)		2,050
Operating Lease Non-Cash Expense	1,185		1,210
Impairment Loss	—		74,408
Other	1,315		968
Cash Flows from Changes in Operating Assets and Liabilities:
Accounts Receivable	(6,010)		13,644
Inventories	430		(7,224)
Accounts Payable	(4,171)		6,295
Accrued Expenses	(685)		(5,730)
Other Current Assets and Liabilities	961		(557)
Customer Advance Payments and Deferred Revenue	2,915		(490)
Income Taxes	(246)		(3,591)
Operating Lease Liabilities	(1,307)		(1,217)
Supplemental Retirement and Other Liabilities	(109)		(99)
Cash Flows from Operating Activities	(6,863)		23,250
Cash Flows from Investing Activities:
Capital Expenditures	(1,905)		(2,793)
Cash Flows from Investing Activities	(1,905)		(2,793)
Cash Flows from Financing Activities:
Proceeds from Long-term Debt	—		150,000
Payments for Long-term Debt	—		(5,000)
Purchase of Outstanding Shares for Treasury	—		(7,732)
Stock Options Activity	(52)		33
Finance Lease Principal Payments	(501)		(461)
Cash Flows from Financing Activities	(553)		136,840
Effect of Exchange Rates on Cash	(362)		(839)
(Decrease) Increase in Cash and Cash Equivalents	(9,683)		156,458
Cash and Cash Equivalents at Beginning of Period	40,412		31,906
Cash and Cash Equivalents at End of Period	$	30,729	$	188,364

See notes to consolidated condensed financial statements.

6

ASTRONICS CORPORATION

Consolidated Condensed Statements of Shareholders' Equity

Three Months Ended April 3, 2021 With Comparative Figures for 2020

(Unaudited)

(In thousands)

	Three Months Ended
	April 3, 2021		March 28, 2020
Common Stock
Beginning of Period	$	278	$	269
Class B Stock Converted to Common Stock	1		2
End of Period	279		271
Convertible Class B Stock
Beginning of Period	69		76
Net Exercise of Stock Options	—		1
Class B Stock Converted to Common Stock	(1)		(2)
End of Period	68		75
Additional Paid in Capital
Beginning of Period	82,187		76,340
Net Exercise of Stock Options and Equity-based Compensation Expense	2,045		1,735
End of Period	84,232		78,075
Accumulated Comprehensive Loss
Beginning of Period	(16,450)		(15,628)
Foreign Currency Translation Adjustments	(637)		(2,304)
Retirement Liability Adjustment – Net of Taxes	434		215
End of Period	(16,653)		(17,717)
Retained Earnings
Beginning of Period	312,803		428,584
Net Loss	(11,909)		(66,963)
End of Period	300,894		361,621
Treasury Stock
Beginning of Period	(108,516)		(100,784)
Purchase of Shares	—		(7,732)
End of Period	(108,516)		(108,516)
Total Shareholders’ Equity	$	260,304	$	313,809

See notes to consolidated condensed financial statements.

7

ASTRONICS CORPORATION

Consolidated Condensed Statements of Shareholders' Equity, Continued

Three Months Ended April 3, 2021 With Comparative Figures for 2020

(Unaudited)

(In thousands)

	Three Months Ended
	April 3, 2021	March 28, 2020
Common Stock
Beginning of Period	27,825	26,874
Net Issuance from Exercise of Stock Options	19	25
Class B Stock Converted to Common Stock	53	189
End of Period	27,897	27,088
Convertible Class B Stock
Beginning of Period	6,877	7,650
Net Issuance from Exercise of Stock Options	13	15
Class B Stock Converted to Common Stock	(53)	(189)
End of Period	6,837	7,476
Treasury Stock
Beginning of Period	3,808	3,526
Purchase of Shares	—	282
End of Period	3,808	3,808

See notes to consolidated condensed financial statements.

8

ASTRONICS CORPORATION

Notes to Consolidated Condensed Financial Statements

April 3, 2021

(Unaudited)

1) Basis of Presentation

The accompanying unaudited statements have been prepared in accordance with U.S. generally accepted accounting principles for interim financial information. Accordingly, they do not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments, consisting of normal recurring accruals, considered necessary for a fair presentation have been included.

Operating Results

The results of operations for any interim period are not necessarily indicative of results for the full year. In addition, the COVID-19 pandemic has increased the volatility we experience in our financial results in recent periods and this could continue in future interim and annual periods. Operating results for the three months ended April 3, 2021 are not necessarily indicative of the results that may be expected for the year ending December 31, 2021.

The balance sheet at December 31, 2020 has been derived from the audited financial statements at that date, but does not include all of the information and footnotes required by U.S. generally accepted accounting principles (“GAAP”) for complete financial statements.

For further information, refer to the financial statements and footnotes thereto included in Astronics Corporation’s 2020 annual report on Form 10-K.

Description of the Business

Astronics Corporation (“Astronics” or the “Company”) is a leading provider of advanced technologies to the global aerospace, defense and electronics industries. Our products and services include advanced, high-performance electrical power generation, distribution and motion systems, lighting and safety systems, avionics products, systems and certification, aircraft structures and automated test systems.

We have principal operations in the United States (“U.S.”), Canada, France and England, as well as engineering offices in the Ukraine and India.

On February 13, 2019, the Company completed a divestiture of its semiconductor test business within the Test Systems segment. The transaction included two elements of contingent earnouts. The First Earnout is calculated based on a multiple of all future sales of existing and certain future derivative products to existing and future customers in each annual period from 2019 through 2022. The First Earnout may not exceed $35.0 million in total. The Second Earnout is calculated based on a multiple of future sales related to an existing product and program with an existing customer exceeding an annual threshold for each annual period from 2019 through 2022. The Second Earnout is not capped. For the Second Earnout, if the applicable sales in an annual period do not exceed the annual threshold, no amounts will be paid relative to such annual period; the sales in such annual period do not carry over to the next annual period. Due to the degree of uncertainty associated with estimating the future sales levels of the divested business and its underlying programs, and the lack of reliable predictive market information, the Company will recognize such earnout proceeds, if received, as additional gain on sale when such proceeds are realized or realizable.

In February 2021, the Company was notified by the buyer that they have calculated $10.7 million as being payable to the Company under the contingent earnouts related to the year ended December 31, 2020. In April 2021, the buyer provided a revised calculation, indicating, rather, that $7.1 million is payable to the Company for the 2020 earnout. The Company and the buyer are currently reviewing the calculations and underlying data and are engaged in negotiations. The Company expects to record the additional gain for whatever amount is realized on the sale when that review is complete and agreement is reached. The timing and amount of any amount realized is uncertain and subject to risks and uncertainties as we continue the review and negotiation process.

Impact of the COVID-19 Pandemic

In December 2019, a novel strain of coronavirus (“COVID-19”) surfaced in Wuhan, China, and has since spread to other countries, including the United States. On March 11, 2020, the World Health Organization classified the COVID-19 outbreak as a pandemic. The COVID-19 pandemic had a sudden and significant impact on the global economy, and particularly in the

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aerospace industry, resulting in the grounding of the majority of the global commercial transportation fleet and significant cost cutting and cash preservation actions by the global airlines. This in turn has resulted in a significant reduction in airlines spending for both new aircraft and on upgrading their existing fleet with the Company’s products. This low level of investment by the airlines has continued into 2021, and while the industry is seeing some improvement on rising vaccination rates and easing travel restrictions, the ultimate impact of COVID-19 on our business results of operations, financial condition and cash flows is dependent on future developments, including the duration of the pandemic, vaccination rates and efficacy and the related length of impact on the global economy and the aerospace industry, which are uncertain and cannot be predicted at this time.

In response to the global COVID-19 pandemic, we took immediate and aggressive action early in 2020 to minimize the spread of COVID-19 in our workplaces and reduce costs. Since the early days of the pandemic, we have been following guidance from the World Health Organization and the U.S. Center for Disease Control to protect employees and prevent the spread of the virus within all of our facilities globally. Some of the actions implemented include: social distancing; appropriate personal protective equipment; facility deep cleaning; flexible work-from-home scheduling; pre-shift temperature screenings, where allowed by law; and restrictions on facility visitors and unnecessary travel. Material actions to reduce costs included: (1) reducing our workforce to align operations with customer demand; (2) suspension of certain benefit programs; and (3) delaying non-essential capital projects and minimizing discretionary spending. At the same time, we addressed the ongoing needs of our business to continue to serve our customers. In addition to these measures, we amended our revolving credit facility in May 2020, as further described in Note 7. We are also monitoring the impacts of COVID-19 on the fair value of assets. Refer to Note 6 for a discussion of goodwill impairment charges recorded in the first quarter of 2020. Should future changes in sales, earnings and cash flows differ significantly from our expectations, long-lived assets to be held and used and goodwill could become impaired in the future.

The Company qualified for government subsidies from the Canadian and French governments as a result of the COVID-19 pandemic’s impact on our foreign operations. The Canadian and French subsidies are income-based grants intended to reimburse the Company for certain employee wages. The grants are recognized as income over the periods in which the Company recognizes as expenses the costs the grants are intended to defray. The Company recorded $0.6 million in COVID-19 related government assistance in the Consolidated Condensed Statements of Operations for the three months ended April 3, 2021, of which $0.5 million and $0.1 million was included in Cost of Products Sold and Selling, General and Administrative (“SG&A”) expenses, respectively.

Trade Accounts Receivable and Contract Assets

The allowance for estimated credit losses is based on the Company’s assessment of the collectability of customer accounts. The Company regularly reviews the allowance by considering factors such as the age of the receivable balances, historical experience, credit quality, current economic conditions, and reasonable and supportable forecasts of future economic conditions that may affect a customer’s ability to pay. The allowance for estimated credit losses balance was $3.5 million and $3.2 million at April 3, 2021 and December 31, 2020, respectively. The Company’s bad debt expense was $0.3 million during the three months ended April 3, 2021 and insignificant in the three months ended March 28, 2020. Total recoveries and writeoffs and charged against the allowance were insignificant in the three months ended April 3, 2021 and March 28, 2020.

The Company's exposure to credit losses may increase if its customers are adversely affected by global economic recessions, disruption associated with the current COVID-19 pandemic, industry conditions, or other customer-specific factors. Although the Company has historically not experienced significant credit losses, it is possible that there could be a material adverse impact from potential adjustments of the carrying amount of trade receivables and contract assets as airlines and other aerospace company’s cash flows are impacted by the COVID-19 pandemic.

Cost of Products Sold, Engineering and Development, Interest, and Selling, General and Administrative Expenses

Cost of products sold includes the costs to manufacture products such as direct materials and labor and manufacturing overhead as well as all engineering and development costs. The Company is engaged in a variety of engineering and design activities as well as basic research and development activities directed to the substantial improvement or new application of the Company’s existing technologies. These costs are expensed when incurred and included in cost of products sold. Research and development, design and related engineering amounted to $21.6 million and $26.2 million for the three months ended April 3, 2021 and March 28, 2020, respectively. Selling, general and administrative expenses include costs primarily related to our sales and marketing departments and administrative departments. Interest expense is shown net of interest income. Interest income was insignificant for the three months ended April 3, 2021 and March 28, 2020.

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Goodwill Impairment

The Company tests goodwill at the reporting unit level on an annual basis or more frequently if an event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount.

As a result of the qualitative factors related to the COVID-19 pandemic, as discussed above, we performed interim quantitative assessments for the reporting units which had goodwill as of March 28, 2020. Based on our quantitative assessment, the Company recorded goodwill impairment charges associated with four Aerospace reporting units, totaling $73.7 million within the Impairment Loss line in the Consolidated Condensed Statement of Operations in the three months ended March 28, 2020.

As of April 3, 2021, the Company concluded that no indicators of impairment relating to intangible assets or goodwill existed and an interim test was not performed in the three months then ended.

For additional information regarding the quantitative test and the related goodwill impairment see Note 6.

Valuation of Long-Lived Assets

Long-lived assets are evaluated for recoverability whenever adverse effects or changes in circumstances indicate that the carrying value may not be recoverable. The recoverability test consists of comparing the undiscounted projected cash flows with the carrying amount. Should the carrying amount exceed undiscounted projected cash flows, an impairment loss would be recognized to the extent the carrying amount exceeds fair value. In conjunction with the deteriorating economic conditions associated with the COVID-19 pandemic, we recorded an impairment charge to right-of-use (“ROU”) assets of approximately $0.7 million incurred in one reporting unit in the Aerospace segment within the Impairment Loss line in the Consolidated Condensed Statement of Operations in the three months ended March 28, 2020. As of April 3, 2021, the Company concluded that no indicators of additional impairment relating to long-lived assets existed.

Foreign Currency Translation

The aggregate foreign currency transaction gain or loss included in operations was insignificant for the three months ended April 3, 2021 and March 28, 2020.

Newly Adopted and Recent Accounting Pronouncements

Recent Accounting Pronouncements Adopted

Standard	Description	Financial Statement Effect or Other Significant Matters
ASU No. 2018-14 Compensation—Retirement Benefits—Defined Benefit Plans—General (Subtopic 715-20)	The standard includes updates to the disclosure requirements for defined benefit plans including several additions, deletions and modifications to the disclosure requirements. The provisions of this ASU are effective for years beginning after December 15, 2020, with early adoption permitted.	This ASU did not have a significant impact on our consolidated financial statements, as it only includes changes to disclosure requirements. Date of adoption: Q1 2021
ASU No. 2019-12 Income Taxes (Topic 740), Simplifying the Accounting for Income Taxes	The amendments in this update simplify the accounting for income taxes by removing certain exceptions to the general principles in Topic 740 and improve consistent application by clarifying and amending existing guidance. The amendments of this standard are effective for fiscal years beginning after December 15, 2020, including interim periods within those fiscal years. Early adoption is permitted, including adoption in any interim period for which financial statements have not been issued, with the amendments to be applied on a respective, modified retrospective or prospective basis, depending on the specific amendment.	This ASU simplifies the accounting for income taxes by, among other things, eliminating certain existing exceptions related to the general approach in ASC 740 relating to franchise taxes, reducing complexity in the interim-period accounting for year-to-date loss limitations and changes in tax laws, and clarifying the accounting for transactions outside of business combination that result in a step-up in the tax basis of goodwill. As we do not have any significant activity associated with these items, this ASU did not have a material impact on consolidated results or operations and financial condition. Date of adoption: Q1 2021

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Recent Accounting Pronouncements Not Yet Adopted

Standard	Description	Financial Statement Effect or Other Significant Matters
ASU No. 2020-04 Reference Rate Reform (Topic 848), Facilitation of the Effects of Reference Rate Reform on Financial Reporting	The amendments in Update 2020-04 are elective and apply to all entities that have contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued due to reference rate reform. The new guidance provides the following optional expedients: simplify accounting analyses under current U.S. GAAP for contract modifications, simplify the assessment of hedge effectiveness, allow hedging relationships affected by reference rate reform to continue and allow a one-time election to sell or transfer debt securities classified as held to maturity that reference a rate affected by reference rate reform.	The amendments are effective for all entities from the beginning of an interim period that includes the issuance date of the ASU. An entity may elect to apply the amendments prospectively through December 31, 2022. The administrator of LIBOR has announced it will consult on its intention to cease the publication of the one week and two month USD LIBOR settings immediately following the LIBOR publication on December 31, 2021, and the remaining USD LIBOR settings immediately following the LIBOR publication on June 30, 2023. Extending the publication of certain USD LIBOR tenors until June 30, 2023 would allow most legacy USD LIBOR contracts to mature before LIBOR experiences disruptions. The Company is currently evaluating the impact of adopting this guidance. Planned date of adoption: Before December 31, 2022

We consider the applicability and impact of all ASUs. ASUs not listed above were assessed and determined to be either not applicable, or had or are expected to have minimal impact on our financial statements and related disclosures.

2) Revenue

Revenue is recognized when, or as, the Company transfers control of promised products or services to a customer in an amount that reflects the consideration the Company expects to be entitled in exchange for transferring those products or services. Sales shown on the Company's Consolidated Condensed Statements of Operations are from contracts with customers.

Payment terms and conditions vary by contract, although terms generally include a requirement of payment within a range from 30 to 90 days after the performance obligation has been satisfied; or in certain cases, up-front deposits. In circumstances where the timing of revenue recognition differs from the timing of invoicing, the Company has determined that the Company's contracts generally do not include a significant financing component. Taxes collected from customers, which are subsequently remitted to governmental authorities, are excluded from sales.

The Company recognizes an asset for the incremental, material costs of obtaining a contract with a customer if the Company expects the benefit of those costs to be longer than one year and the costs are expected to be recovered. These incremental costs include, but are not limited to, sales commissions incurred to obtain a contract with a customer. As of April 3, 2021, the Company does not have material incremental costs on any open contracts with an original expected duration of greater than one year.

The Company recognizes an asset for certain, material costs to fulfill a contract if it is determined that the costs relate directly to a contract or an anticipated contract that can be specifically identified, generate or enhance resources that will be used in satisfying performance obligations in the future, and are expected to be recovered. Such costs are amortized on a systematic basis that is consistent with the transfer to the customer of the goods to which the asset relates. Start-up costs are expensed as incurred. Capitalized fulfillment costs are included in Inventories in the accompanying Consolidated Condensed Balance Sheets. Should future orders not materialize or it is determined the costs are no longer probable of recovery, the capitalized costs are written off. As of April 3, 2021, the Company does not have material capitalized fulfillment costs.

A performance obligation is a promise in a contract to transfer a distinct good or service to the customer, and is the unit of account. The majority of our contracts have a single performance obligation as the promise to transfer the individual goods or services is not separately identifiable from other promises in the contracts which are, therefore, not distinct. Thus, the contract's transaction price is the revenue recognized when or as that performance obligation is satisfied. Promised goods or services that are immaterial in the context of the contract are not separately assessed as performance obligations.

Some of our contracts have multiple performance obligations, most commonly due to the contract covering multiple phases of the product lifecycle (development, production, maintenance and support). For contracts with multiple performance obligations, the contract’s transaction price is allocated to each performance obligation using our best estimate of the standalone selling price of each distinct good or service in the contract. The primary method used to estimate standalone selling price is the expected cost plus margin approach, under which expected costs are forecast to satisfy a performance obligation and then an

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appropriate margin is added for that distinct good or service. Shipping and handling activities that occur after the customer has obtained control of the good are considered fulfillment activities, not performance obligations.

Some of our contracts offer price discounts or free units after a specified volume has been purchased. The Company evaluates these options to determine whether they provide a material right to the customer, representing a separate performance obligation. If the option provides a material right to the customer, revenue is allocated to these rights and recognized when those future goods or services are transferred, or when the option expires.

Contract modifications are routine in the performance of our contracts. Contracts are often modified to account for changes in contract specifications or requirements. In most instances, contract modifications are for goods or services that are distinct, and, therefore, are accounted for as new contracts. The effect of modifications has been reflected when identifying the satisfied and unsatisfied performance obligations, determining the transaction price and allocating the transaction price.

The majority of the Company’s revenue from contracts with customers is recognized at a point in time, when the customer obtains control of the promised product, which is generally upon delivery and acceptance by the customer. These contracts may provide credits or incentives, which may be accounted for as variable consideration. Variable consideration is estimated at the most likely amount to predict the consideration to which the Company will be entitled, and only to the extent it is probable that a subsequent change in estimate will not result in a significant revenue reversal when estimating the amount of revenue to recognize. Variable consideration is treated as a change to the sales transaction price and based on an assessment of all information (i.e., historical, current and forecasted) that is reasonably available to the Company, and estimated at contract inception and updated at the end of each reporting period as additional information becomes available. Most of our contracts do not contain rights to return product; where this right does exist, it is evaluated as possible variable consideration.

For contracts that are subject to the requirement to accrue anticipated losses, the Company recognizes the entire anticipated loss in the period that the loss becomes probable.

For contracts with customers in which the Company promises to provide a product to the customer that has no alternative use to the Company and the Company has enforceable rights to payment for progress completed to date inclusive of profit, the Company satisfies the performance obligation and recognizes revenue over time, using costs incurred to date relative to total estimated costs at completion to measure progress toward satisfying our performance obligations. Incurred cost represents work performed, which corresponds with, and thereby best depicts, the transfer of control to the customer. Contract costs include labor, material and overhead.

The Company also recognizes revenue from service contracts (including service-type warranties) over time. The Company recognizes revenue over time during the term of the agreement as the customer is simultaneously receiving and consuming the benefits provided throughout the Company’s performance. The Company typically recognizes revenue on a straight-line basis throughout the contract period.

On April 3, 2021, we had $297.5 million of remaining performance obligations, which we refer to as total backlog. We expect to recognize approximately $217.2 million of our remaining performance obligations as revenue in 2021.

Costs in excess of billings includes unbilled amounts resulting from revenues under contracts with customers that are satisfied over time and when the cost-to-cost measurement method of revenue recognition is utilized and revenue recognized exceeds the amount billed to the customer, and right to payment is not just subject to the passage of time. Amounts may not exceed their net realizable value. Costs in excess of billings are classified as current assets, within Accounts Receivable, Net of Allowance for Estimated Credit Losses on our Consolidated Condensed Balance Sheets.

Billings in excess of cost includes billings in excess of revenue recognized as well as other elements of deferred revenue, which includes advanced payments, up-front payments, and progress billing payments. Billings in excess of cost are reported in our Consolidated Condensed Balance Sheets, classified as current liabilities, within Customer Advance Payments and Deferred Revenue, and non-current liabilities, within Other Liabilities. To determine the revenue recognized in the period from the beginning balance of billings in excess of cost, the contract liability as of the beginning of the period is recognized as revenue on a contract-by-contract basis when the Company satisfies the performance obligation related to the individual contract. Once the beginning contract liability balance for an individual contract has been fully recognized as revenue, any additional payments received in the period are recognized as revenue once the related costs have been incurred.

We recognized $8.3 million and $8.7 million for the three months ended April 3, 2021 and March 28, 2020, respectively, in revenues that were included in the contract liability balance at the beginning of the period.

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The Company's contract assets and contract liabilities consist primarily of costs and profits in excess of billings and billings in excess of cost and profits, respectively. The following table presents the beginning and ending balances of contract assets and contract liabilities during the three months ended April 3, 2021:

(In thousands)	Contract Assets		Contract Liabilities
Beginning Balance, January 1, 2021	$	17,697	$	28,641
Ending Balance, April 3, 2021	$	25,510	$	31,285

The following table presents our revenue disaggregated by Market Segments as follows:

	Three Months Ended
(In thousands)	April 3, 2021		March 28, 2020
Aerospace Segment
Commercial Transport	$	38,208	$	102,775
Military	20,982		18,113
Business Jet	14,028		15,006
Other	8,198		5,176
Aerospace Total	81,416		141,070
Test Systems Segment
Semiconductor	—		1,634
Aerospace & Defense	24,441		14,880
Test Systems Total	24,441		16,514
Total	$	105,857	$	157,584

The following table presents our revenue disaggregated by Product Lines as follows:

	Three Months Ended
(In thousands)	April 3, 2021		March 28, 2020
Aerospace Segment
Electrical Power & Motion	$	29,344	$	69,456
Lighting & Safety	27,100		37,922
Avionics	14,843		22,143
Systems Certification	878		3,331
Structures	1,053		3,042
Other	8,198		5,176
Aerospace Total	81,416		141,070
Test Systems	24,441		16,514
Total	$	105,857	$	157,584

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3) Inventories

Inventories consisted of the following:

(In thousands)	April 3, 2021		December 31, 2020
Finished Goods	$	26,691	$	26,964
Work in Progress	24,777		21,987
Raw Material	103,786		108,108
	$	155,254	$	157,059

The Company has evaluated the carrying value of existing inventories and believe they are properly reflected at their lower of carrying value or net realizable value. Future changes in demand or other market developments could result in future inventory charges. The Company is actively managing inventories and aligning them to meet known current and future demand.

4) Property, Plant and Equipment

Property, Plant and Equipment consisted of the following:

(In thousands)	April 3, 2021		December 31, 2020
Land	$	9,848	$	9,891
Buildings and Improvements	75,540		75,493
Machinery and Equipment	120,629		119,444
Construction in Progress	5,770		5,843
	211,787		210,671
Less Accumulated Depreciation	106,856		103,993
	$	104,931	$	106,678

5) Intangible Assets

The following table summarizes acquired intangible assets as follows: 

		April 3, 2021				December 31, 2020
(In thousands)	Weighted Average Life	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Patents	11 years	$	2,146	$	1,913	$	2,146	$	1,891
Non-compete Agreement	4 years	11,082		10,212		11,082		10,085
Trade Names	10 years	11,476		7,784		11,512		7,537
Completed and Unpatented Technology	9 years	47,982		26,939		48,043		25,766
Customer Relationships	15 years	142,367		62,275		142,478		60,096
Total Intangible Assets	12 years	$	215,053	$	109,123	$	215,261	$	105,375

All acquired intangible assets other than goodwill and one trade name are being amortized. Amortization expense for acquired intangibles is summarized as follows: 

	Three Months Ended
(In thousands)	April 3, 2021		March 28, 2020
Amortization Expense	$	3,855	$	4,265

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Amortization expense for acquired intangible assets expected for 2021 and for each of the next five years is summarized as follows:

(In thousands)
2021	$	15,356
2022	$	14,911
2023	$	13,878
2024	$	12,856
2025	$	10,935
2026	$	9,533

6) Goodwill

The following table summarizes the changes in the carrying amount of goodwill for the three months ended April 3, 2021:

(In thousands)	December 31, 2020		Foreign Currency Translation		April 3, 2021
Aerospace	$	36,648	$	15	$	36,663
Test Systems	21,634		—		21,634
	$	58,282	$	15	$	58,297

The Company tests goodwill at the reporting unit level on an annual basis or more frequently if an event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount.

Beginning in the first quarter of 2020 the COVID-19 pandemic negatively impacted the global economy and aerospace industry. Management considered these qualitative factors and the impact to each reporting unit’s revenue and earnings, and determined that it was more likely than not that the fair value of several reporting units was less than its carrying value. Therefore, we performed a quantitative test for all eight reporting units with goodwill as of March 28, 2020. Based on our quantitative assessments, the Company recorded non-cash goodwill impairment charges associated with four Aerospace reporting units, totaling approximately $73.7 million within the Impairment Loss line in the Consolidated Condensed Statement of Operations in the three months ended March 28, 2020.

As of April 3, 2021, the Company concluded that no indicators of additional impairment relating to intangible assets or goodwill existed and an interim test was not performed in the three months then ended.

7) Long-term Debt and Notes Payable

The Company's Fifth Amended and Restated Credit Agreement (the “Agreement”) provided for a $500 million revolving credit line with the option to increase the line by up to $150 million. The maturity date of the loans under the Agreement is February 16, 2023. The maximum leverage ratio of funded debt, net of cash to Adjusted EBITDA (as defined in the Agreement) was 3.75 to 1, increasing to 4.50 to 1 for up to four fiscal quarters following the closing of an acquisition permitted under the Agreement, subject to limitations. The Company paid interest on the unpaid principal amount of the facility at a rate equal to one-, three- or six-month LIBOR plus between 1.00% and 1.50% based upon the Company’s leverage ratio. The Company also paid a commitment fee to the lenders in an amount equal to between 0.10% and 0.20% on the undrawn portion of the credit facility, based upon the Company’s leverage ratio.

In May 2020, the Company executed an amendment to the Agreement (the “Amended Facility”), which reduced the revolving credit line from $500 million to $375 million. The Amended Facility suspends the application of the leverage ratio up through and including the second quarter of 2021 (the “suspension period”). The maximum net leverage ratio will be 6.00 to 1 for the third quarter of 2021, 5.50 to 1 for the fourth quarter of 2021, 4.50 to 1 for the first quarter of 2022, and return to 3.75 to 1 for each quarter thereafter.

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At April 3, 2021, there was $173.0 million outstanding on the revolving credit facility and there remained $200.9 million available subject to the minimum liquidity covenant discussed below, net of outstanding letters of credit. The credit facility allocates up to $20 million of the $375 million revolving credit line for the issuance of letters of credit, including certain existing letters of credit. At April 3, 2021, outstanding letters of credit totaled $1.1 million.

Through the third quarter of 2021, the Amended Facility requires the Company to maintain minimum liquidity, defined as unrestricted cash plus the unused revolving credit commitments, of $180 million at all times. Through the second quarter of 2021, the Company is required to maintain a minimum interest coverage ratio of 1.75x on a quarterly basis, except for the first quarter of 2021, which was set at 1.50x. The Company was in compliance with its financial covenants at April 3, 2021. During the suspension period, the Company will pay interest on the unpaid principal amount of the Amended Facility at a rate equal to one-, three- or six-month LIBOR (which shall be at least 1.00%) plus 2.25%. The Company will also pay a commitment fee to the lenders in an amount equal to 0.35% on the undrawn portion of the Amended Facility. After the suspension period, the Company will pay interest on the unpaid principal amount of the Amended Facility at a rate equal to one-, three- or six-month LIBOR (which shall be at least 1.00%) plus between 1.00% to 2.25% based upon the Company’s leverage ratio. The Company will also pay a commitment fee to the lenders in an amount equal to 0.10% to 0.35% on the undrawn portion of the Amended Facility, based upon the Company’s leverage ratio. The Amended Facility provided for the payment of a consent fee of 15 basis points of the commitment for each consenting lender.

The Amended Facility also temporarily restricts certain activities, including acquisitions and share repurchases, and requires mandatory prepayments during the suspension period when the Company’s cash balance exceeds $100 million. The Company has not made any prepayments during the three months ended April 3, 2021.

The Company’s obligations under the Amended Facility are jointly and severally guaranteed by each domestic subsidiary of the Company other than non-material subsidiaries. The obligations are secured by a first priority lien on substantially all of the Company’s and the guarantors’ assets.

In the event of voluntary or involuntary bankruptcy of the Company or any subsidiary, all unpaid principal and other amounts owing under the Amended Facility automatically become due and payable. Other events of default, such as failure to make payments as they become due and breach of financial and other covenants, change of control, judgments over a certain amount, and cross default under other agreements give the agent the option to declare all such amounts immediately due and payable.

8) Product Warranties

In the ordinary course of business, the Company warrants its products against defects in design, materials and workmanship typically over periods ranging from twelve to sixty months. The Company determines warranty reserves needed by product line based on experience and current facts and circumstances. Activity in the warranty accrual is summarized as follows: 

	Three Months Ended
(In thousands)	April 3, 2021		March 28, 2020
Balance at Beginning of Period	$	7,018	$	7,660
Warranties Issued	808		877
Warranties Settled	(685)		(691)
Reassessed Warranty Exposure	(299)		(724)
Balance at End of Period	$	6,842	$	7,122

9) Leases

The Company has operating and finance leases for leased office and manufacturing facilities and equipment leases. We have concluded that when an agreement grants us the right to substantially all of the economic benefits associated with an identified asset, and we are able to direct the use of that asset throughout the term of the agreement, the agreement contains a lease. We lease certain facilities and office equipment under finance leases, and we lease certain production facilities, office equipment and vehicles under operating leases. Some of our leases include options to extend or terminate the leases and these options have been included in the relevant lease term to the extent that they are reasonably certain to be exercised.

The weighted-average remaining term for the Company's operating and financing leases are approximately 6 and 1, respectively. The weighted-average discount rates for the Company's operating and financing leases are approximately 3.3% and 5.1%, respectively.

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The following is a summary of the Company's ROU assets and liabilities:

(In thousands)	April 3, 2021		December 31, 2020
Operating Leases:
Operating Right-of-Use Assets, Gross	$	28,458	$	28,678
Less Accumulated Right-of-Use Asset Impairment	1,710		1,710
Less Accumulated Amortization	8,998		8,015
Operating Right-of-Use Assets, Net	$	17,750	$	18,953
Short-term Operating Lease Liabilities	$	4,856	$	4,998
Long-term Operating Lease Liabilities	15,415		16,637
Operating Lease Liabilities	$	20,271	$	21,635
Finance Leases:
Finance Right-of-Use Assets, Gross	$	3,585	$	3,484
Less Accumulated Amortization	2,282		2,039
Finance Right-of-Use Assets, Net — Included in Other Assets	$	1,303	$	1,445
Short-term Finance Lease Liabilities — Included in Accrued Expenses and Other Current Liabilities	$	2,196	$	2,081
Long-term Finance Lease Liabilities — Included in Other Liabilities	232		734
Finance Lease Liabilities	$	2,428	$	2,815

The following is a summary of the Company's total lease costs:

	Three Months Ended
(In thousands)	April 3, 2021		March 28, 2020
Finance Lease Cost:
Amortization of Right-of-Use Assets	$	254	$	255
Interest on Lease Liabilities	35		63
Total Finance Lease Cost	289		318
Operating Lease Cost	1,359		1,448
Right-of-Use Asset Impairment	—		691
Variable Lease Cost	391		272
Short-term Lease Cost (excluding month-to-month)	47		67
Less Sublease and Rental (Income) Expense	(309)		(331)
Total Operating Lease Cost	1,488		2,147
Total Net Lease Cost	$	1,777	$	2,465

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The following is a summary of the Company's maturity of lease liabilities:

(In thousands)	Operating Leases		Finance Leases
Remainder of 2021	$	4,120	$	1,701
2022	5,171		800
2023	3,800		—
2024	2,858		—
2025	2,809		—
Thereafter	3,361		—
Total Lease Payments	22,119		2,501
Less: Interest	1,848		73
Total Lease Liability	$	20,271	$	2,428

10) Income Taxes

The effective tax rates were approximately (0.9)% and 3.3% for the three months ended April 3, 2021 and March 28, 2020, respectively. The tax rate in the 2021 period was impacted by State and Foreign income taxes as well as changes in the valuation allowance previously recorded against federal deferred tax assets. As discussed below, the tax rate in the 2020 period was impacted primarily by the initial recording of a valuation allowance against federal deferred tax assets.

As a result of the COVID-19 pandemic and its adverse effects on the global economy and aerospace industry that began to take shape in the first quarter of fiscal 2020, through April 3, 2021 the Company is continuing to forecast that it will generate a taxable loss in 2021. The Company records a valuation allowance against the deferred tax assets if and to the extent it is more likely than not that the Company will not recover the deferred tax assets. In evaluating the need for a valuation allowance, the Company weights all relevant positive and negative evidence, and considers among other factors, historical financial performance, projected future taxable income, scheduled reversals of deferred tax liabilities, the overall business environment, and tax planning strategies. Losses in recent periods and cumulative pre-tax losses in the three-year period ending with the current year, combined with the significant uncertainty brought about by the COVID-19 pandemic, is collectively considered significant negative evidence under ASC 740 when assessing whether an entity can use projected income as a basis for concluding that deferred tax assets are realizable on a more-likely-than not basis. For purposes of assessing the recoverability of deferred tax assets, in the first quarter of 2020 the Company determined that it could not include future projected earnings in the analysis due to recent history of losses and therefore had insufficient objective positive evidence that the Company will generate sufficient future pre-tax income to overcome the negative evidence of cumulative losses. As a result, the Company recorded a valuation allowance against its U.S. federal deferred tax assets in the first quarter of 2020 and continues to maintain the valuation allowance against its U.S. federal deferred tax assets as of April 3, 2021.

On March 11, 2021, the American Rescue Plan Act, or ARPA, was signed into law. The ARPA enacted certain provisions that are relevant to corporate income tax. These provisions did not have a material impact on our income tax provision for the three months ended April 3, 2021.

11) Earnings Per Share

Basic and diluted weighted-average shares outstanding are as follows: 

	Three Months Ended
(In thousands)	April 3, 2021	March 28, 2020
Weighted Average Shares - Basic	30,903	30,814
Net Effect of Dilutive Stock Options	—	—
Weighted Average Shares - Diluted	30,903	30,814

Stock options with exercise prices greater than the average market price of the underlying common shares are excluded from the computation of diluted earnings per share because they are out-of-the-money and the effect of their inclusion would be anti-dilutive. The number of common shares covered by out-of-the-money stock options was approximately 652,000 shares as of April 3, 2021 and 785,000 shares as of March 28, 2020. Further, due to our net loss in the three month periods ended April 3,

19

2021 and March 28, 2020, the assumed exercise of stock compensation had an antidilutive effect and therefore was excluded from the computation of diluted loss per share.

12) Shareholders' Equity

Share Buyback Program

The Company’s Board of Directors from time to time authorizes the repurchase of common stock, which allows the Company to purchase shares of its common stock in accordance with applicable securities laws on the open market or through privately negotiated transactions. Most recently, on September 17, 2019, the Company’s Board of Directors authorized a repurchase of up to $50 million. Approximately 282,000 shares were repurchased in the first quarter of 2020 at a cost of $7.7 million before the 10b5-1 plan associated with the share repurchase program was terminated on February 3, 2020. Under its current credit agreement, and as described further in Note 7, the Company is currently restricted from further stock repurchases.

Comprehensive Loss and Accumulated Other Comprehensive Loss

The components of accumulated other comprehensive loss are as follows: 

(In thousands)	April 3, 2021		December 31, 2020
Foreign Currency Translation Adjustments	$	(5,105)	$	(4,468)
Retirement Liability Adjustment – Before Tax	(13,830)		(14,264)
Tax Benefit of Retirement Liability Adjustment	2,282		2,282
Retirement Liability Adjustment – After Tax	(11,548)		(11,982)
Accumulated Other Comprehensive Loss	$	(16,653)	$	(16,450)

The components of other comprehensive (loss) income are as follows: 

	Three Months Ended
(In thousands)	April 3, 2021		March 28, 2020
Foreign Currency Translation Adjustments	$	(637)	$	(2,304)
Retirement Liability Adjustments:
Reclassifications to General and Administrative Expense:
Amortization of Prior Service Cost	101		101
Amortization of Net Actuarial Losses	333		171
Tax Benefit	—		(57)
Retirement Liability Adjustment	434		215
Other Comprehensive Loss	$	(203)	$	(2,089)

13) Supplemental Retirement Plan and Related Post Retirement Benefits

The Company has two non-qualified supplemental retirement defined benefit plans (“SERP” and “SERP II”) for certain executive officers. The following table sets forth information regarding the net periodic pension cost for the plans. 

	Three Months Ended
(In thousands)	April 3, 2021		March 28, 2020
Service Cost	$	49	$	55
Interest Cost	191		209
Amortization of Prior Service Cost	97		97
Amortization of Net Actuarial Losses	323		162
Net Periodic Cost	$	660	$	523

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Participants in the SERP are entitled to paid medical, dental and long-term care insurance benefits upon retirement under the plan. The net periodic cost was insignificant for the three months ended April 3, 2021 and March 28, 2020.

The service cost component of net periodic benefit costs above is recorded in Selling, General and Administrative Expenses within the Consolidated Condensed Statements of Operations, while the remaining components are recorded in Other Expense, Net of Other Income.

14) Sales to Major Customers

The loss of major customers or a significant reduction in business with a major customer would significantly, negatively impact our sales and earnings. In the three months ended April 3, 2021, the Company had no customer in excess of 10% of consolidated sales. Sales to one customer in the Aerospace segment represented 17% of consolidated sales for the three months ended March 28, 2020.

15) Legal Proceedings

Lufthansa

One of the Company’s subsidiaries is involved in numerous patent infringement actions brought by Lufthansa Technik AG (“Lufthansa”) in Germany, UK and France. The Company is vigorously defending all such litigation and proceedings. Additional information about these legal proceedings can be found in Note 19 “Legal Proceedings” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020. There were no significant developments in any of these matters during the quarter ended April 3, 2021. The reserve for the German indirect claim was approximately $16.8 million at April 3, 2021, which included an additional $0.1 million in interest accrued during the quarter then ended. We currently believe it is unlikely that the appeals process will be completed and the damages and related interest will be paid within the next twelve months. Therefore, the liability related to this matter is classified within Other Liabilities (non-current) in the Consolidated Condensed Balance Sheets at April 3, 2021 and December 31, 2020.

Other

On March 23, 2020, Teradyne, Inc. filed a complaint against the Company and its subsidiary, Astronics Test Systems (“ATS”) (together, “the Defendants”) in the United States District Court for the Central District of California alleging patent and copyright infringement, and certain other related claims. The Defendants moved to dismiss certain claims from the case. On November 6, 2020, the Court dismissed the Company from the case, and also dismissed a number of claims, though the patent and copyright infringement claims remain. The case is currently in discovery. In addition, on December 21, 2020, ATS filed a petition with the US Patent Trial and Appeal Board (“PTAB”), seeking to invalidate the subject patent. The parties are waiting to learn whether the PTAB will institute the proceeding. The District Court scheduled a claims construction hearing on the patent for June 2021. Fact discovery has begun on both the patent and copyright claims. We will not have a trial date until 2022 at the earliest. No amounts have been accrued for this matter in the April 3, 2021 financial statements, as loss exposure is neither probable nor estimable at this time.

Other than these proceedings, we are not party to any significant pending legal proceedings that management believes will result in a material adverse effect on our financial condition or results of operations.

21

16) Segment Information

Below are the sales and operating profit by segment for the three and three months ended April 3, 2021 and March 28, 2020 and a reconciliation of segment operating profit to income before income taxes. Operating profit is net sales less cost of products sold and other operating expenses excluding interest and corporate expenses. Cost of products sold and other operating expenses are directly identifiable to the respective segment. 

	Three Months Ended
(In thousands)	April 3, 2021			March 28, 2020
Sales:
Aerospace	$	81,430		$	141,137
Less Inter-segment Sales	(14)			(67)
Total Aerospace Sales	81,416			141,070
Test Systems	24,745			16,553
Less Inter-segment Sales	(304)			(39)
Total Test Systems Sales	24,441			16,514
Total Consolidated Sales	$	105,857		$	157,584
Segment Measure of Operating (Loss) Profit and Margins
Aerospace	$	(5,563)		$	(63,145)
	(6.8)		%	(44.8)		%
Test Systems	1,189			722
	4.9		%	4.4		%
Total Segment Measure of Operating (Loss) Profit	(4,374)			(62,423)
	(4.1)		%	(39.6)		%
Additions/Deductions from Segment Measure of Operating (Loss) Profit
Interest Expense, Net of Interest Income	1,758			1,333
Corporate Expenses and Other	5,672			5,521
Loss Before Income Taxes	$	(11,804)		$	(69,277)

Total Assets: 

(In thousands)	April 3, 2021		December 31, 2020
Aerospace	$	481,134	$	484,885
Test Systems	102,138		105,079
Corporate	22,685		29,781
Total Assets	$	605,957	$	619,745

17) Fair Value

A fair value measurement assumes that the transaction to sell an asset or transfer a liability occurs in the principal market for the asset or liability or, in the absence of a principal market, the most advantageous market for the asset or liability. Fair value is based upon an exit price model. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and involves consideration of factors specific to the asset or liability.

The Company follows a valuation hierarchy for disclosure of the inputs to valuation used to measure fair value. This hierarchy prioritizes the inputs into three broad levels as follows:

Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities.

Level 2 inputs are quoted prices for similar assets and liabilities in active markets or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument.

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Level 3 inputs are unobservable inputs based on our own assumptions used to measure assets and liabilities at fair value.

On a Recurring Basis:

A financial asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement.

On October 4, 2019, the Company acquired the stock of the primary operating subsidiaries as well as certain other assets from mass transit and defense market test solution provider, Diagnosys Test Systems Limited for $7.0 million in cash, plus an earn-out estimated at a fair value of $2.5 million at the time of acquisition. The terms of the Diagnosys acquisition allow for a potential earn-out of up to an additional $13.0 million over the three years post-acquisition based on achievement of new order levels of over $72.0 million during that period. The fair value of this contingent consideration is estimated at $2.2 million as of April 3, 2021. The fair value assigned to the earnout is determined using the real options method, which requires Level 3 inputs such as new order forecasts, discount rate, volatility factors, and other market variables to assess the probability of Diagnosys achieving certain order levels over the period.

There were no other financial assets or liabilities carried at fair value measured on a recurring basis at December 31, 2020 or April 3, 2021.

On a Non-recurring Basis:

The Company tests goodwill at the reporting unit level on an annual basis or more frequently if an event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount. In accordance with the provisions of ASC Topic 350, Intangibles – Goodwill and Other, the Company estimates the fair value of reporting units, utilizing unobservable Level 3 inputs. Level 3 inputs require significant management judgment due to the absence of quoted market prices or observable inputs for assets of a similar nature. The inputs underlying the fair value measurement of the reporting unit under the step-one analysis of the quantitative goodwill impairment test are classified as Level 3 inputs.

As further discussed in Note 6, we performed interim quantitative assessments for the reporting units which had goodwill as of March 28, 2020. Based on our quantitative assessments, the Company recorded non-cash goodwill impairment charges associated with four Aerospace reporting units, totaling approximately $73.7 million within the Impairment Loss line in the Consolidated Condensed Statement of Operations in the three months ended March 28, 2020. The impairment loss was calculated as the difference between the fair value of the reporting unit (which was calculated using level 3 inputs) and the carrying value of the reporting unit. As of April 3, 2021, the Company concluded that no indicators of additional impairment relating to intangible assets or goodwill existed and an interim test was not performed in the three months then ended.

Long-lived assets are evaluated for recoverability whenever adverse effects or changes in circumstances indicate that the carrying value may not be recoverable. The recoverability test consists of comparing the undiscounted projected cash flows of the asset or asset group (which are Level 3 inputs) with the asset of asset group’s carrying amount. Should the carrying amount exceed undiscounted projected cash flows, an impairment loss would be recognized to the extent the carrying amount exceeds fair value. In conjunction with the deteriorating economic conditions associated with the COVID-19 pandemic, we recorded an impairment charge to ROU assets of approximately $0.7 million incurred in the Aerospace segment within the Impairment Loss line in the Consolidated Condensed Statement of Operations in the three months ended March 28, 2020. As of April 3, 2021, the Company concluded that no indicators of additional impairment relating to long-lived assets existed.

Due to their short-term nature, the carrying value of cash and equivalents, accounts receivable, accounts payable, and notes payable approximate fair value. The carrying value of the Company’s variable rate long-term debt instruments also approximates fair value due to the variable rate feature of these instruments.

18) Restructuring Charges

The COVID-19 pandemic has significantly impacted the global economy, and particularly the aerospace industry, resulting in reduced expectations of the Company’s anticipated future operating results. As a result, the Company executed restructuring activities in the form of workforce reduction, primarily in the second quarter of 2020, to align capacity with expected demand. There were no additional restructuring charges associated with this initiative recorded in the three months ended April 3, 2021.

In the fourth quarter of 2019, in an effort to reduce the significant operating losses at our AeroSat business, the Company initiated a restructuring plan to reduce costs and minimize losses of our AeroSat antenna business. The Company incurred $0.3 million in additional restructuring charges associated with severance at AeroSat during the three months ended March 28, 2020.

23

The following tables reconcile the beginning and ending liability for restructuring charges:

	2021
Balance as of January 1	$	5,631
Restructuring Charges	—
Cash Paid	(981)
Balance as of April 3	$	4,650

The liability is within Accrued Expenses and Other Current Liabilities and is comprised of employee termination benefits expected to be paid within the next 12 months as well as the current portions of payments to be made under AeroSat’s non-cancelable inventory purchase commitments. The non-cancelable purchase commitments are for inventory in the future which is not expected to be purchased prior to the expiration date of such agreements as a result of the restructuring plan.

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Item 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(The following should be read in conjunction with Management’s Discussion and Analysis of Financial Condition and Results of Operations contained in the Company’s Form 10-K for the year ended December 31, 2020.)

OVERVIEW

Astronics Corporation (“Astronics” or the “Company”) is a leading supplier of advanced technologies and products to the global aerospace and defense industries. Our products and services include advanced, high-performance electrical power generation and distribution systems, seat motion solutions, lighting and safety systems, avionics products, aircraft structures, systems certification, and automated test systems.

Our Aerospace segment designs and manufactures products for the global aerospace industry. Product lines include lighting and safety systems, electrical power generation, distribution and seat motions systems, aircraft structures, avionics products, systems certification, and other products. Our primary Aerospace customers are the airframe manufacturers (“OEM”) that build aircraft for the commercial, military and general aviation markets, suppliers to those OEM’s, aircraft operators such as airlines, suppliers to the aircraft operators, and branches of the U.S. Department of Defense. Our Test Systems segment designs, develops, manufactures and maintains automated test systems that support the aerospace and defense, communications and mass transit industries as well as training and simulation devices for both commercial and military applications. In the Test Systems segment, Astronics’ products are sold to a global customer base including OEM's and prime government contractors for both electronics and military products.

Our strategy is to increase our value by developing technologies and capabilities, either internally or through acquisition, and using those capabilities to provide innovative solutions to our targeted markets where our technology can be beneficial.

Important factors affecting our growth and profitability are the ongoing impacts of the COVID-19 pandemic and the timing and extent of recovery (as discussed more fully below), the rate at which new aircraft are produced, government funding of military programs, our ability to have our products designed into new aircraft and the rates at which aircraft owners, including commercial airlines, refurbish or install upgrades to their aircraft. New aircraft build rates and aircraft owners spending on upgrades and refurbishments is cyclical and dependent on the strength of the global economy. Once designed into a new aircraft, the spare parts business is frequently retained by the Company. Future growth and profitability of the test business is dependent on developing and procuring new and follow-on business. The nature of our Test Systems business is such that it pursues large, often multi-year, projects. There can be significant periods of time between orders in this business which may result in large fluctuations of sales and profit levels and backlog from period to period. Test Systems segment customers include the Department of Defense, prime contractors to the Department of Defense, mass transit operators and prime contractors to mass transit operators.

On February 13, 2019, the Company completed a divestiture of its semiconductor test business within the Test Systems segment. The total proceeds of the divestiture amounted to $103.8 million plus certain contingent purchase consideration (“earn-out”).

The transaction included two elements of contingent earnouts. The First Earnout is calculated based on a multiple of all future sales of existing and certain future derivative products to existing and future customers in each annual period from 2019 through 2022. The First Earnout may not exceed $35.0 million in total. The Second Earnout is calculated based on a multiple of future sales related to an existing product and program with an existing customer exceeding an annual threshold for each annual period from 2019 through 2022. The Second Earnout is not capped. For the Second Earnout, if the applicable sales in an annual period do not exceed the annual threshold, no amounts will be paid relative to such annual period; the sales in such annual period do not carry over to the next annual period. Due to the degree of uncertainty associated with estimating the future sales levels of the divested business and its underlying programs, and the lack of reliable predictive market information, the Company will recognize such earnout proceeds, if received, as additional gain on sale when such proceeds are realized or realizable. No amounts were payable for the year ended December 31, 2019.

In February 2021, the Company was notified by the buyer that they have calculated $10.7 million as being payable to the Company under the contingent earnouts related to the year ended December 31, 2020. In April 2021, the buyer provided a revised calculation, indicating, rather, that $7.1 million is payable to the Company for the 2020 earnout. The Company and the buyer are currently reviewing the calculations and underlying data and are engaged in negotiations. The Company expects to record the additional gain for whatever amount is realized on the sale when that review is complete and agreement is reached.

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The timing and amount of any amount realized is uncertain and subject to risks and uncertainties as we continue the review and negotiation process.

CONSOLIDATED RESULTS OF OPERATIONS AND OUTLOOK 

	Three Months Ended
($ in thousands)	April 3, 2021			March 28, 2020
Sales	$	105,857		$	157,584
Gross Profit (sales less cost of products sold)	$	14,273		$	35,719
Gross Margin	13.5		%	22.7		%
Selling, General and Administrative Expenses	$	23,785		$	28,867
SG&A Expenses as a Percentage of Sales	22.5		%	18.3		%
Impairment Loss	$	—		$	74,408
Interest Expense, Net of Interest Income	$	1,758		$	1,333
Effective Tax Rate	(0.9)		%	3.3		%
Net (Loss) Income	$	(11,909)		$	(66,963)

A discussion by segment can be found at “Segment Results of Operations and Outlook” in this MD&A.

CONSOLIDATED FIRST QUARTER RESULTS

Consolidated sales were down $51.7 million compared with the first quarter of 2020. Aerospace sales were down $59.7 million from the 2020 first quarter, which had been largely unaffected by the COVID pandemic. Test System sales increased $7.9 million.

Consolidated cost of products sold in the first quarter of 2021 was $91.6 million, compared with $121.9 million in the prior-year period. The decrease was primarily due to low volume related to the continued impacts of the COVID-19 pandemic on the global aerospace industry, coupled with the associated workforce and other cost reduction measures discussed further below. Gross margin declined from 22.7% to 13.5% due to leverage lost on lower volumes.

Selling, general and administrative (“SG&A”) expenses were $23.8 million in the first quarter of 2021 compared with $28.9 million in the prior-year period. Contributing to the decrease in SG&A in 2021 were workforce reduction activities and cost reduction measures which were not put into effect primarily until the second quarter of 2020.

Further, non-cash goodwill and other asset impairment charges of $74.4 million in the Aerospace segment were recognized in the first quarter of 2020 due to revised expectations regarding future operating results as the COVID-19 pandemic took hold.

Interest expense has increased due to the higher interest rate upon the amendment of the credit facility in May 2020.

The effective tax rate for the quarter was (0.9)%, compared with 3.3% in the first quarter of 2020. The 2021 tax rate was impacted by changes in the valuation allowance recorded against federal deferred tax assets as well as State and Foreign income taxes. The 2020 tax rate was impacted primarily by the initial recording of a valuation allowance against federal deferred tax assets.

Consolidated net loss was $11.9 million, or $0.39 per diluted share, compared with net loss of $67.0 million, or $2.17 per diluted share, in the prior year. The after tax impact of the prior year impairment was $68.8 million, or $2.23 per diluted share.

Bookings were $120.0 million, for a book-to-bill ratio of 1.13:1. Backlog at the end of the quarter was $297.5 million. Approximately $217.2 million, or 73%, of backlog is expected to ship in the remainder of 2021.

Impact of COVID-19 and Operational Adjustments

As previously discussed, we face risks related to outbreaks of infectious diseases, including the ongoing COVID-19 pandemic. The challenges posed by the COVID-19 pandemic on the global economy, and more profoundly on the aerospace industry, increased significantly as 2020 progressed, and has continued into 2021. COVID-19 has caused disruption and volatility in the global capital markets, and has authored an economic slowdown in the Aerospace industry in particular. In response to COVID-19, national and local governments around the world have instituted certain measures, including travel bans, prohibitions on group events and gatherings, shutdowns of certain businesses, curfews, shelter-in-place orders and recommendations to practice social distancing. While these actions and restrictions are easing in some geographies, there

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remains continued impact. Although our operations have been deemed essential and we follow the COVID-19 guidelines from the Centers for Disease Control (“CDC”) concerning the health and safety of our personnel, these measures have resulted in attenuating activity and, in some cases, required temporary closures of certain of our facilities, among other impacts. The duration of these measures is unknown, may be extended and additional measures may be imposed.

In response to the global COVID-19 pandemic, we implemented actions to maintain the health of our employees as well as our financial health and liquidity. These actions, which began in 2020, included:

•Implementing social distancing measures, the use of masks, restricting visitors and unnecessary travel, and working from home whenever possible;

•Workforce reduction activities to align capacity with expected demand, reducing headcount by approximately 20% to approximately 2,100 employees currently;

•Eliminated consultants and temporary labor where possible;

•Implemented significant cost conservation measures;

•Suspending cash bonus plans and certain benefit programs;

•Amended our revolving credit facility on May 4, 2020, as further described in the “Liquidity and Capital Resources” section below;

•Suspending share repurchases;

•Reducing capital spending where possible; and

•Restrictions on marketing, trade shows, travel and discretionary spending.

Analysis of Impact on Demand and Market Trends

The Company evaluates three revenue streams to monitor demand and analyze the impact of the pandemic to its business. These are (1) the commercial aircraft market, which includes OEM line fit and airline aftermarket business, (2) defense and other government markets, and (3) general aviation.

Commercial aerospace has been heavily impacted by the pandemic and contributed $38.2 million, or 36% of consolidated revenue in the quarter, compared to $102.8 million or 65% of consolidated revenue in the first quarter of 2020. Airframe manufacturers adjusted to current market conditions by reducing planned production rates for new aircraft. Driven by the production rate reductions, the Company also experienced a slow-down in orders related to destocking in the supply chain. Narrow body aircraft build rates are expected to improve through 2021 from current levels as production of the 737 MAX picks up. The aftermarket is expected to strengthen over the course of the year as aircraft utilization and load factors increase.

Defense and government markets have remained relatively strong through the pandemic. Sales to these markets were $45.4 million, or 43% of first quarter consolidated revenue in 2021, up from $33.0 million, or 21% in the comparative period of 2020. This includes our military aircraft programs and our Test business, excluding the divested semiconductor business.

General aviation, which consists of our business jet market, were $14.0 million, representing 13% of the first quarter revenue in 2021. This compares with $15.0 million, or 10% of revenue in the comparator period. Most of general aviation revenue is line fit production driven by the manufacture of new aircraft, although there is some amount of aftermarket business as well. Demand for private aircraft has recovered quickly and is expected to in result in higher aircraft production rates in the near future.

Additionally, Astronics has pursued business opportunities from other markets, taking advantage of its technical design expertise and manufacturing capabilities, which are currently underutilized. Other revenue was approximately 8% of revenue in the first quarter of 2021. These opportunities can be meaningful, and some are directly related to the fight against COVID-19, such as the Xenex® program, whereby Astronics is providing manufacturing support to Xenex for the production of its unique LightStrike robots, which use patented pulsed xenon ultraviolet (“UV”) light disinfection technology to neutralize SARS-CoV-2, the virus that causes COVID-19.

Outlook

We are pleased with the continued strong demand for our Test business, which had core sales up 64% over last year. We also are encouraged by the consistent sequential ramping of Aerospace bookings since the second quarter of last year. We are optimistic that demand will strengthen as 2021 progresses, but it is too early to forecast results confidently. However, we expect our revenue in the second quarter to be about $115 million. Our goals remain to generate cash and reduce debt. Evidence suggests that our largest market, which is dependent upon the health of the commercial airline industry, will recover when and where the pandemic comes under control. While we are making strides in the U.S., we look forward to progress in this regard worldwide through the remainder of this year.

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Our expectation for capital expenditures for 2021 remains unchanged at $10 million to $11 million.

Consolidated backlog at April 3, 2021 was $297.5 million. Approximately 73% of the backlog is expected to be recognized as revenue in 2021.

The ultimate impact of COVID-19 on our business results of operations, financial condition and cash flows is dependent on future developments, including the duration of the pandemic, vaccination rates and efficacy and the related length of impact on the global economy and specifically on the markets we are active in, which is uncertain and cannot be predicted at this time.

SEGMENT RESULTS OF OPERATIONS AND OUTLOOK

Operating profit, as presented below, is sales less cost of products sold and other operating expenses, excluding interest expense and other corporate expenses. Cost of products sold and other operating expenses are directly identifiable to the respective segment. Operating profit is reconciled to earnings before income taxes in Note 16 of the Notes to Consolidated Condensed Financial Statements included in this report.

AEROSPACE SEGMENT

	Three Months Ended
(In thousands)	April 3, 2021			March 28, 2020
Sales	$	81,430		$	141,137
Less Inter-segment Sales	(14)			(67)
Total Aerospace Sales	$	81,416		$	141,070
Operating Loss	$	(5,563)		$	(63,145)
Operating Margin	(6.8)		%	(44.8)		%
Aerospace Sales by Market
(In thousands)
Commercial Transport	$	38,208		$	102,775
Military	20,982			18,113
Business Jet	14,028			15,006
Other	8,198			5,176
	$	81,416		$	141,070
Aerospace Sales by Product Line
(In thousands)
Electrical Power & Motion	$	29,344		$	69,456
Lighting & Safety	27,100			37,922
Avionics	14,843			22,143
Systems Certification	878			3,331
Structures	1,053			3,042
Other	8,198			5,176
	$	81,416		$	141,070

(In thousands)	April 3, 2021		December 31, 2020
Total Assets	$	481,134	$	484,885
Backlog	$	210,153	$	191,081

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AEROSPACE FIRST QUARTER RESULTS

Aerospace segment sales decreased $59.7 million, or 42.3%, to $81.4 million. Sales continued to be negatively affected by low commercial aircraft build rates and a weak commercial aircraft aftermarket as airlines have reduced spending and grounded aircraft due to the global COVID-19 pandemic.

Electrical Power and Motion sales were down $40.1 million compared with the prior-year period. Lighting & Safety sales decreased $10.8 million. Additionally, Avionics sales were down $7.3 million compared with the prior-year period.

Aerospace segment operating loss was $5.6 million compared with operating loss of $63.1 million for the same period last year. Leverage lost on reduced sales significantly impacted operating results. Aerospace operating profit in the prior-year period was impacted by goodwill and other asset impairment charges of $74.4 million, as previously discussed.

AEROSPACE OUTLOOK

Aerospace bookings in the first quarter of 2021 were $100.5 million, for a book-to-bill ratio of 1.23:1. The Aerospace segment’s backlog at the end of the first quarter of 2021 was $210.2 million with approximately $178.0 million expected to be recognized as revenue over the remaining part of 2021 and $185.3 million scheduled over the next 12 months.

TEST SYSTEMS SEGMENT 

	Three Months Ended
(In thousands)	April 3, 2021			March 28, 2020
Sales	$	24,745		$	16,553
Less Inter-segment Sales	(304)			(39)
Total Test Systems Sales	$	24,441		$	16,514
Operating profit	$	1,189		$	722
Operating Margin	4.9		%	4.4		%
Test Systems Sales by Market
(In thousands)
Semiconductor	$	—		$	1,634
Aerospace & Defense	24,441			14,880
	$	24,441		$	16,514

(In thousands)	April 3, 2021		December 31, 2020
Total Assets	$	102,138	$	105,079
Backlog	$	87,393	$	92,337

TEST SYSTEMS FIRST QUARTER RESULTS

Test Systems segment sales were $24.4 million, up $7.9 million compared to the prior-year period. Volumes have increased, as defense and government markets have been largely unaffected by the pandemic.

Test Systems operating profit was $1.2 million, or 4.9% of sales, compared with $0.7 million, or 4.4% of sales, in the first quarter of 2020. Operating profit in the first quarter of 2021 was negatively affected by $0.9 million in legal fees related to infringement claims. Operating results in 2020 benefited from $1.6 million in semiconductor warranty revenue.

TEST SYSTEMS OUTLOOK

Bookings for the Test Systems segment in the quarter were $19.5 million, for a book-to-bill ratio of 0.80:1 for the quarter. The Test Systems segment’s backlog at the end of the first quarter of 2021 was $87.4 million, with approximately $39.2 million expected to be recognized as revenue over the remaining part 2021 and approximately $46.8 million scheduled over the next 12 months.

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LIQUIDITY AND CAPITAL RESOURCES

Operating Activities:

Cash used for operating activities totaled $6.9 million for the first three months of 2021, as compared with $23.3 million cash provided by operating activities during the same period in 2020. Cash flow from operating activities decreased compared with the same period of 2020 primarily due to lower net income adjusted for non-cash expenses and income in 2021 compared with 2020 due to the impacts of the COVID-19 pandemic on our business, coupled with changes in net operating assets.

Investing Activities:

Cash used for investing activities was $1.9 million for the first three months of 2021 compared with $2.8 million in cash used for investing activities in the same period of 2020 due to a decrease in capital expenditures. The Company expects capital spending in 2021 to be in the range of $10 million and $11 million.

Financing Activities:

Cash used for financing activities totaled $0.6 million for the first three months of 2021, as compared with $136.8 million cash provided by financing activities during the same period in 2020. Cash flow from financing activities decreased compared with the same period of 2020 due to net proceeds on our senior credit facility of $145.0 million in the first three months of 2020, partially offset by $7.7 million of share repurchases before the 10b-5 plan associated with the share repurchase program was terminated.

The Company's Fifth Amended and Restated Credit Agreement (the “Agreement”) provided for a $500 million revolving credit line with the option to increase the line by up to $150 million. The maturity date of the loans under the Agreement is February 16, 2023. The maximum leverage ratio of funded debt, net of cash to Adjusted EBITDA (as defined in the Agreement) was 3.75 to 1, increasing to 4.50 to 1 for up to four fiscal quarters following the closing of an acquisition permitted under the Agreement, subject to limitations. The Company paid interest on the unpaid principal amount of the facility at a rate equal to one-, three- or six-month LIBOR plus between 1.00% and 1.50% based upon the Company’s leverage ratio. The Company also paid a commitment fee to the lenders in an amount equal to between 0.10% and 0.20% on the undrawn portion of the credit facility, based upon the Company’s leverage ratio.

In May 2020, the Company executed an amendment to the Agreement (the “Amended Facility”), which reduced the revolving credit line from $500 million to $375 million. The Amended Facility suspends the application of the leverage ratio up through and including the second quarter of 2021 (the “suspension period”). The maximum net leverage ratio will be 6.00 to 1 for the third quarter of 2021, 5.50 to 1 for the fourth quarter of 2021, 4.50 to 1 for the first quarter of 2022, and return to 3.75 to 1 for each quarter thereafter.

At April 3, 2021, there was $173.0 million outstanding on the revolving credit facility and there remained $200.9 million available subject to the minimum liquidity covenant discussed below, net of outstanding letters of credit. The credit facility allocates up to $20 million of the $375 million revolving credit line for the issuance of letters of credit, including certain existing letters of credit. At April 3, 2021, outstanding letters of credit totaled $1.1 million.

Through the third quarter of 2021, the Amended Facility requires the Company to maintain minimum liquidity, defined as unrestricted cash plus the unused revolving credit commitments, of $180 million at all times. Through the second quarter of 2021, the Company is required to maintain a minimum interest coverage ratio of 1.75x on a quarterly basis, except for the first quarter of 2021, which was set at 1.50x. The Company was in compliance with its financial covenants at April 3, 2021. During the suspension period, the Company will pay interest on the unpaid principal amount of the Amended Facility at a rate equal to one-, three- or six-month LIBOR (which shall be at least 1.00%) plus 2.25%. The Company will also pay a commitment fee to the lenders in an amount equal to 0.35% on the undrawn portion of the Amended Facility. After the suspension period, the Company will pay interest on the unpaid principal amount of the Amended Facility at a rate equal to one-, three- or six-month LIBOR (which shall be at least 1.00%) plus between 1.00% to 2.25% based upon the Company’s leverage ratio. The Company will also pay a commitment fee to the lenders in an amount equal to 0.10% to 0.35% on the undrawn portion of the Amended Facility, based upon the Company’s leverage ratio. The Amended Facility provided for the payment of a consent fee of 15 basis points of the commitment for each consenting lender.

The Amended Facility also temporarily restricts certain activities, including acquisitions and share repurchases, and requires mandatory prepayments during the suspension period when the Company’s cash balance exceeds $100 million. The Company has not made any prepayments during the three months ended April 3, 2021.

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The Company’s obligations under the Amended Facility are jointly and severally guaranteed by each domestic subsidiary of the Company other than non-material subsidiaries. The obligations are secured by a first priority lien on substantially all of the Company’s and the guarantors’ assets.

In the event of voluntary or involuntary bankruptcy of the Company or any subsidiary, all unpaid principal and other amounts owing under the Amended Facility automatically become due and payable. Other events of default, such as failure to make payments as they become due and breach of financial and other covenants, change of control, judgments over a certain amount, and cross default under other agreements give the agent the option to declare all such amounts immediately due and payable.

OFF BALANCE SHEET ARRANGEMENTS

We do not have any material off balance sheet arrangements that have or are reasonably likely to have a material future effect on our results of operations or financial condition.

BACKLOG

The Company’s backlog at April 3, 2021 was $297.5 million compared with $283.4 million at December 31, 2020 and $369.4 million at March 28, 2020.

CONTRACTUAL OBLIGATIONS AND COMMITMENTS

Our contractual obligations and commitments have not changed materially from the disclosures in our 2020 Annual Report on Form 10-K.

MARKET RISK

The Company believes that there have been no material changes in the current year regarding the market risk information for its exposure to interest rate fluctuations. Although the majority of our sales, expenses and cash flows are transacted in U.S. dollars, we have exposure to changes in foreign currency exchange rates related primarily to the Euro and the Canadian dollar. The Company believes that the impact of changes in foreign currency exchange rates in 2021 have not been significant.

CRITICAL ACCOUNTING POLICIES

Refer to Note 2 of the Notes to Consolidated Condensed Financial Statements included in this report for the Company’s critical accounting policies with respect to revenue recognition. For a complete discussion of the Company’s other critical accounting policies, refer to the Company’s annual report on Form 10-K for the year ended December 31, 2020.

RECENT ACCOUNTING PRONOUNCEMENTS

Refer to Note 1 of the Notes to Consolidated Condensed Financial Statements included in this report.

FORWARD-LOOKING STATEMENTS

Information included in this report that does not consist of historical facts, including statements accompanied by or containing words such as “may,” “will,” “should,” “believes,” “expects,” “expected,” “intends,” “plans,” “projects,” “approximate,” “estimates,” “predicts,” “potential,” “outlook,” “forecast,” “anticipates,” “presume” and “assume,” are forward-looking statements. Such forward-looking statements are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. These statements are not guarantees of future performance and are subject to several factors, risks and uncertainties, the impact or occurrence of which could cause actual results to differ materially from the expected results described in the forward-looking statements. Certain of these factors, risks and uncertainties are discussed in the sections of this report entitled “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations.” New factors, risks and uncertainties may emerge from time to time that may affect the forward-looking statements made herein. Given these factors, risks and uncertainties, investors should not place undue reliance on forward-looking statements as predictive of future results. We disclaim any obligation to update the forward-looking statements made in this report.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

See Market Risk in Item 2, above.

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Item 4. Controls and Procedures

a.Evaluation of Disclosure Controls and Procedures

The Company’s management, with the participation of the Company’s Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of the Company’s disclosure controls and procedures as of April 3, 2021. Based on that evaluation, the Company’s Chief Executive Officer and Chief Financial Officer concluded that the Company’s disclosure controls and procedures were effective as of April 3, 2021.

b.Changes in Internal Control over Financial Reporting

There have been no changes in our internal control over financial reporting during the most recent fiscal quarter that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II - OTHER INFORMATION

Item 1. Legal Proceedings

Currently, we are involved in legal proceedings relating to an allegation of patent infringement and based on rulings to date we have concluded that losses related to these proceedings are probable. For a discussion of contingencies related to legal proceedings, see Note 15 of the Notes to Consolidated Condensed Financial Statements.

Item 1a. Risk Factors

In addition to other information set forth in this report, you should carefully consider the factors discussed in Part 1, Item 1A. “Risk Factors,” in our Annual Report on Form 10-K for the year ended December 31, 2020, which could materially affect our business, financial condition or results of operations. The risks described in our Annual Report on Form 10-K are not the only risks facing us. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition and/or results of operations.

Item 2. Unregistered sales of equity securities and use of proceeds

c. The following table summarizes our purchases of our common stock for the quarter ended April 3, 2021.

Period	(a) Total Number of Shares Purchased	(b) Average Price Paid Per Share	(c) Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	(d) Maximum Dollar Value of Shares that may yet be Purchased Under the Program (1)
January 1, 2021 - April 3, 2021	—	—	—	$41,483,815

In connection with the exercise of stock options, we accept, from time to time, delivery of shares to pay the exercise price of stock options.

(1) On September 17, 2019, the Company’s Board of Directors authorized an additional repurchase of up to $50 million. Approximately 310,000 shares were repurchased at a cost of $8.5 million before the 10b5-1 plan associated with the share repurchase program was terminated on February 3, 2020.

Item 3. Defaults Upon Senior Securities

None.

Item 4. Mine Safety Disclosures

None.

Item 5. Other Information

None.

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Item 6. Exhibits

Exhibit 31.1	Section 302 Certification - Chief Executive Officer
Exhibit 31.2	Section 302 Certification - Chief Financial Officer
Exhibit 32	Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
Exhibit 101.1*	Instance Document
Exhibit 101.2*	Schema Document
Exhibit 101.3*	Calculation Linkbase Document
Exhibit 101.4*	Labels Linkbase Document
Exhibit 101.5*	Presentation Linkbase Document
Exhibit 101.6*	Definition Linkbase Document

* Submitted electronically herewith.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

		ASTRONICS CORPORATION
		(Registrant)
Date:	May 10, 2021	By:	/s/ David C. Burney
			David C. Burney Executive Vice President and Chief Financial Officer (Principal Financial Officer)

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EX-31.1

Exhibit 31.1

SECTION 302 CERTIFICATION

Certification of Chief Executive Officer pursuant to Exchange Act rule 13a-14(a) as adopted pursuant to

Section 302 of the Sarbanes-Oxley Act of 2002

I, Peter J. Gundermann, President and Chief Executive Officer, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Astronics Corporation;

1.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

1.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

1.The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

a.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

a.Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

a.Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

1.The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of registrant's board of directors (or persons performing equivalent functions):

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

a.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: 5/10/2021

/s/ Peter J. Gundermann

Peter J. Gundermann

President and Chief Executive Officer

EX-31.2

Exhibit 31.2

SECTION 302 CERTIFICATION

Certification of Chief Financial Officer pursuant to Exchange Act Rule 13a-14(a) as adopted pursuant to

Section 302 of the Sarbanes-Oxley Act of 2002

I, David C. Burney, Chief Financial Officer, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Astronics Corporation;

1.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

1.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

1.The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

a.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

a.Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

a.Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

1.The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of registrant's board of directors (or persons performing equivalent functions):

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

a.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: 5/10/2021

/s/ David C. Burney

David C. Burney

Chief Financial Officer

EX-32

Exhibit 32

Certification pursuant to

18 U.S.C. Section 1350,

as adopted pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officers of Astronics Corporation (the "Company") hereby certify that:

The Company's Quarterly Report on Form 10-Q for the quarter ended April 3, 2021 fully complies with the requirements of section 13(a) or 15(d) of the Securities and Exchange Act of 1934 and the information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Company.

May 10, 2021	/s/ Peter J. Gundermann
	Peter J. Gundermann
	Title:	Chief Executive Officer
May 10, 2021	/s/ David C. Burney
	David C. Burney
	Title:	Chief Financial Officer

This certification shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liability of that section. This certification shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except to the extent specifically incorporated by the Company into such filing.

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Cover - shares	3 Months Ended
	Apr. 03, 2021	May 03, 2021
Document Information
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Apr. 03, 2021
Document Transition Report	false
Entity File Number	0-7087
Entity Registrant Name	ASTRONICS CORPORATION
Entity Incorporation, State or Country Code	NY
Entity Tax Identification Number	16-0959303
Entity Address, Address Line One	130 Commerce Way
Entity Address, City or Town	East Aurora
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	14052
City Area Code	716
Local Phone Number	805-1599
Title of 12(b) Security	Common Stock, $.01 par value per share
Trading Symbol	ATRO
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity Central Index Key	0000008063
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Filer Category	Accelerated Filer
Common Class Undefined
Document Information
Entity Common Stock, Shares Outstanding (in shares)		24,478,464
Convertible Class B Stock
Document Information
Entity Common Stock, Shares Outstanding (in shares)		6,446,607

XML

Consolidated Condensed Balance Sheets - USD ($) $ in Thousands	Apr. 03, 2021	Dec. 31, 2020
Current Assets:
Cash and Cash Equivalents	$ 30,729	$ 40,412
Accounts Receivable, Net of Allowance for Estimated Credit Losses	98,701	93,056
Inventories	155,254	157,059
Prepaid Expenses and Other Current Assets	25,552	26,420
Total Current Assets	310,236	316,947
Property, Plant and Equipment, Net of Accumulated Depreciation	104,931	106,678
Operating Right-of-Use Assets	17,750	18,953
Other Assets	8,813	8,999
Intangible Assets, Net of Accumulated Amortization	105,930	109,886
Goodwill	58,297	58,282
Total Assets	605,957	619,745
Current Liabilities:
Accounts Payable	22,216	26,446
Current Operating Lease Liabilities	4,856	4,998
Accrued Expenses and Other Current Liabilities	40,723	37,721
Customer Advance Payments and Deferred Revenue	27,407	24,571
Total Current Liabilities	95,202	93,736
Long-term Debt	173,000	173,000
Long-term Operating Lease Liabilities	15,415	16,637
Other Liabilities	62,036	66,001
Total Liabilities	345,653	349,374
Shareholders’ Equity:
Common Stock	347	347
Accumulated Other Comprehensive Loss	(16,653)	(16,450)
Other Shareholders’ Equity	276,610	286,474
Total Shareholders’ Equity	260,304	270,371
Total Liabilities and Shareholders’ Equity	$ 605,957	$ 619,745

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Consolidated Condensed Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Income Statement [Abstract]
Sales	$ 105,857	$ 157,584
Cost of Products Sold	91,584	121,865
Gross Profit	14,273	35,719
Selling, General and Administrative Expenses	23,785	28,867
Impairment Loss	0	74,408
Loss from Operations	(9,512)	(67,556)
Other Expense, Net of Other Income	534	388
Interest Expense, Net of Interest Income	1,758	1,333
Loss Before Income Taxes	(11,804)	(69,277)
Provision for (Benefit from) Income Taxes	105	(2,314)
Net Loss	$ (11,909)	$ (66,963)
Loss Per Share:
Basic (in usd per share)	$ (0.39)	$ (2.17)
Diluted (in usd per share)	$ (0.39)	$ (2.17)

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Consolidated Condensed Statements of Comprehensive (Loss) Income - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Statement of Comprehensive Income [Abstract]
Net Loss	$ (11,909)	$ (66,963)
Other Comprehensive (Loss) Income:
Foreign Currency Translation Adjustments	(637)	(2,304)
Retirement Liability Adjustment – Net of Tax	434	215
Total Other Comprehensive Loss	(203)	(2,089)
Comprehensive Loss	$ (12,112)	$ (69,052)

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Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Cash Flows from Operating Activities:
Net Loss	$ (11,909)	$ (66,963)
Adjustments to Reconcile Net Loss to Cash Flows from Operating Activities:
Depreciation and Amortization	7,453	7,971
Provisions for Non-Cash Losses on Inventory and Receivables	1,269	872
Equity-based Compensation Expense	2,097	1,703
Deferred Tax (Benefit) Expense	(51)	2,050
Operating Lease Non-Cash Expense	1,185	1,210
Impairment Loss	0	74,408
Other	1,315	968
Cash Flows from Changes in Operating Assets and Liabilities:
Accounts Receivable	(6,010)	13,644
Inventories	430	(7,224)
Accounts Payable	(4,171)	6,295
Accrued Expenses	(685)	(5,730)
Other Current Assets and Liabilities	961	(557)
Customer Advance Payments and Deferred Revenue	2,915	(490)
Income Taxes	(246)	(3,591)
Operating Lease Liabilities	(1,307)	(1,217)
Supplemental Retirement and Other Liabilities	(109)	(99)
Cash Flows from Operating Activities	(6,863)	23,250
Cash Flows from Investing Activities:
Capital Expenditures	(1,905)	(2,793)
Cash Flows from Investing Activities	(1,905)	(2,793)
Cash Flows from Financing Activities:
Proceeds from Long-term Debt	0	150,000
Payments for Long-term Debt	0	(5,000)
Purchase of Outstanding Shares for Treasury	0	(7,732)
Finance Lease Principal Payments	(501)	(461)
Cash Flows from Financing Activities	(553)	136,840
Effect of Exchange Rates on Cash	(362)	(839)
(Decrease) Increase in Cash and Cash Equivalents	(9,683)	156,458
Cash and Cash Equivalents at Beginning of Period	40,412	31,906
Cash and Cash Equivalents at End of Period	30,729	188,364
Proceeds of Stock Options Exercised, Net Of Taxes Remitted	$ (52)	$ 33

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Consolidated Condensed Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock Common Class Undefined	Common Stock Convertible Class B Stock	Additional Paid in Capital	Accumulated Comprehensive Loss	Retained Earnings	Treasury Stock
Beginning of Period at Dec. 31, 2019		$ 269	$ 76	$ 76,340	$ (15,628)	$ 428,584	$ (100,784)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Exercise of Stock Options			1	1,735
Class B Stock Converted to Common Stock		2	(2)
Foreign Currency Translation Adjustments					(2,304)
Retirement Liability Adjustment – Net of Tax	$ 215				215
Net Loss	(66,963)					(66,963)
Purchase of Shares							(7,732)
End of Period at Mar. 28, 2020	313,809	$ 271	$ 75	78,075	(17,717)	361,621	$ (108,516)
Beginning of Period (in shares) at Dec. 31, 2019		26,874	7,650				3,526
Increase (Decrease) in Stockholders' Equity (in shares)
Net Issuance from Exercise of Stock Options (in shares)		25	15
Conversion of Class B Shares to Common Shares (in shares)		189	(189)
Purchase of shares (in shares)							282
End of Period (in shares) at Mar. 28, 2020		27,088	7,476				3,808
Beginning of Period at Dec. 31, 2020	270,371	$ 278	$ 69	82,187	(16,450)	312,803	$ (108,516)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Exercise of Stock Options			0	2,045
Class B Stock Converted to Common Stock		1	(1)
Foreign Currency Translation Adjustments					(637)
Retirement Liability Adjustment – Net of Tax	434				434
Net Loss	(11,909)					(11,909)
Purchase of Shares							0
End of Period at Apr. 03, 2021	$ 260,304	$ 279	$ 68	$ 84,232	$ (16,653)	$ 300,894	$ (108,516)
Beginning of Period (in shares) at Dec. 31, 2020		27,825	6,877				3,808
Increase (Decrease) in Stockholders' Equity (in shares)
Net Issuance from Exercise of Stock Options (in shares)		19	13
Conversion of Class B Shares to Common Shares (in shares)		53	(53)
Purchase of shares (in shares)							0
End of Period (in shares) at Apr. 03, 2021		27,897	6,837				3,808

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Basis of Presentation

3 Months Ended

Apr. 03, 2021

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

The accompanying unaudited statements have been prepared in accordance with U.S. generally accepted accounting principles for interim financial information. Accordingly, they do not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments, consisting of normal recurring accruals, considered necessary for a fair presentation have been included.

Operating Results

The results of operations for any interim period are not necessarily indicative of results for the full year. In addition, the COVID-19 pandemic has increased the volatility we experience in our financial results in recent periods and this could continue in future interim and annual periods. Operating results for the three months ended April 3, 2021 are not necessarily indicative of the results that may be expected for the year ending December 31, 2021.

The balance sheet at December 31, 2020 has been derived from the audited financial statements at that date, but does not include all of the information and footnotes required by U.S. generally accepted accounting principles (“GAAP”) for complete financial statements.

For further information, refer to the financial statements and footnotes thereto included in Astronics Corporation’s 2020 annual report on Form 10-K.

Description of the Business

Astronics Corporation (“Astronics” or the “Company”) is a leading provider of advanced technologies to the global aerospace, defense and electronics industries. Our products and services include advanced, high-performance electrical power generation, distribution and motion systems, lighting and safety systems, avionics products, systems and certification, aircraft structures and automated test systems.

We have principal operations in the United States (“U.S.”), Canada, France and England, as well as engineering offices in the Ukraine and India.

On February 13, 2019, the Company completed a divestiture of its semiconductor test business within the Test Systems segment. The transaction included two elements of contingent earnouts. The First Earnout is calculated based on a multiple of all future sales of existing and certain future derivative products to existing and future customers in each annual period from 2019 through 2022. The First Earnout may not exceed $35.0 million in total. The Second Earnout is calculated based on a multiple of future sales related to an existing product and program with an existing customer exceeding an annual threshold for each annual period from 2019 through 2022. The Second Earnout is not capped. For the Second Earnout, if the applicable sales in an annual period do not exceed the annual threshold, no amounts will be paid relative to such annual period; the sales in such annual period do not carry over to the next annual period. Due to the degree of uncertainty associated with estimating the future sales levels of the divested business and its underlying programs, and the lack of reliable predictive market information, the Company will recognize such earnout proceeds, if received, as additional gain on sale when such proceeds are realized or realizable.

In February 2021, the Company was notified by the buyer that they have calculated $10.7 million as being payable to the Company under the contingent earnouts related to the year ended December 31, 2020. In April 2021, the buyer provided a revised calculation, indicating, rather, that $7.1 million is payable to the Company for the 2020 earnout. The Company and the buyer are currently reviewing the calculations and underlying data and are engaged in negotiations. The Company expects to record the additional gain for whatever amount is realized on the sale when that review is complete and agreement is reached. The timing and amount of any amount realized is uncertain and subject to risks and uncertainties as we continue the review and negotiation process.

Impact of the COVID-19 Pandemic

In December 2019, a novel strain of coronavirus (“COVID-19”) surfaced in Wuhan, China, and has since spread to other countries, including the United States. On March 11, 2020, the World Health Organization classified the COVID-19 outbreak as a pandemic. The COVID-19 pandemic had a sudden and significant impact on the global economy, and particularly in the

aerospace industry, resulting in the grounding of the majority of the global commercial transportation fleet and significant cost cutting and cash preservation actions by the global airlines. This in turn has resulted in a significant reduction in airlines spending for both new aircraft and on upgrading their existing fleet with the Company’s products. This low level of investment by the airlines has continued into 2021, and while the industry is seeing some improvement on rising vaccination rates and easing travel restrictions, the ultimate impact of COVID-19 on our business results of operations, financial condition and cash flows is dependent on future developments, including the duration of the pandemic, vaccination rates and efficacy and the related length of impact on the global economy and the aerospace industry, which are uncertain and cannot be predicted at this time.

In response to the global COVID-19 pandemic, we took immediate and aggressive action early in 2020 to minimize the spread of COVID-19 in our workplaces and reduce costs. Since the early days of the pandemic, we have been following guidance from the World Health Organization and the U.S. Center for Disease Control to protect employees and prevent the spread of the virus within all of our facilities globally. Some of the actions implemented include: social distancing; appropriate personal protective equipment; facility deep cleaning; flexible work-from-home scheduling; pre-shift temperature screenings, where allowed by law; and restrictions on facility visitors and unnecessary travel. Material actions to reduce costs included: (1) reducing our workforce to align operations with customer demand; (2) suspension of certain benefit programs; and (3) delaying non-essential capital projects and minimizing discretionary spending. At the same time, we addressed the ongoing needs of our business to continue to serve our customers. In addition to these measures, we amended our revolving credit facility in May 2020, as further described in Note 7. We are also monitoring the impacts of COVID-19 on the fair value of assets. Refer to Note 6 for a discussion of goodwill impairment charges recorded in the first quarter of 2020. Should future changes in sales, earnings and cash flows differ significantly from our expectations, long-lived assets to be held and used and goodwill could become impaired in the future.

The Company qualified for government subsidies from the Canadian and French governments as a result of the COVID-19 pandemic’s impact on our foreign operations. The Canadian and French subsidies are income-based grants intended to reimburse the Company for certain employee wages. The grants are recognized as income over the periods in which the Company recognizes as expenses the costs the grants are intended to defray. The Company recorded $0.6 million in COVID-19 related government assistance in the Consolidated Condensed Statements of Operations for the three months ended April 3, 2021, of which $0.5 million and $0.1 million was included in Cost of Products Sold and Selling, General and Administrative (“SG&A”) expenses, respectively.

Trade Accounts Receivable and Contract Assets

The allowance for estimated credit losses is based on the Company’s assessment of the collectability of customer accounts. The Company regularly reviews the allowance by considering factors such as the age of the receivable balances, historical experience, credit quality, current economic conditions, and reasonable and supportable forecasts of future economic conditions that may affect a customer’s ability to pay. The allowance for estimated credit losses balance was $3.5 million and $3.2 million at April 3, 2021 and December 31, 2020, respectively. The Company’s bad debt expense was $0.3 million during the three months ended April 3, 2021 and insignificant in the three months ended March 28, 2020. Total recoveries and writeoffs and charged against the allowance were insignificant in the three months ended April 3, 2021 and March 28, 2020.

The Company's exposure to credit losses may increase if its customers are adversely affected by global economic recessions, disruption associated with the current COVID-19 pandemic, industry conditions, or other customer-specific factors. Although the Company has historically not experienced significant credit losses, it is possible that there could be a material adverse impact from potential adjustments of the carrying amount of trade receivables and contract assets as airlines and other aerospace company’s cash flows are impacted by the COVID-19 pandemic.

Cost of Products Sold, Engineering and Development, Interest, and Selling, General and Administrative Expenses

Cost of products sold includes the costs to manufacture products such as direct materials and labor and manufacturing overhead as well as all engineering and development costs. The Company is engaged in a variety of engineering and design activities as well as basic research and development activities directed to the substantial improvement or new application of the Company’s existing technologies. These costs are expensed when incurred and included in cost of products sold. Research and development, design and related engineering amounted to $21.6 million and $26.2 million for the three months ended April 3, 2021 and March 28, 2020, respectively. Selling, general and administrative expenses include costs primarily related to our sales and marketing departments and administrative departments. Interest expense is shown net of interest income. Interest income was insignificant for the three months ended April 3, 2021 and March 28, 2020.

Goodwill Impairment

The Company tests goodwill at the reporting unit level on an annual basis or more frequently if an event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount.

As a result of the qualitative factors related to the COVID-19 pandemic, as discussed above, we performed interim quantitative assessments for the reporting units which had goodwill as of March 28, 2020. Based on our quantitative assessment, the Company recorded goodwill impairment charges associated with four Aerospace reporting units, totaling $73.7 million within the Impairment Loss line in the Consolidated Condensed Statement of Operations in the three months ended March 28, 2020.

As of April 3, 2021, the Company concluded that no indicators of impairment relating to intangible assets or goodwill existed and an interim test was not performed in the three months then ended.

For additional information regarding the quantitative test and the related goodwill impairment see Note 6.

Valuation of Long-Lived Assets

Long-lived assets are evaluated for recoverability whenever adverse effects or changes in circumstances indicate that the carrying value may not be recoverable. The recoverability test consists of comparing the undiscounted projected cash flows with the carrying amount. Should the carrying amount exceed undiscounted projected cash flows, an impairment loss would be recognized to the extent the carrying amount exceeds fair value. In conjunction with the deteriorating economic conditions associated with the COVID-19 pandemic, we recorded an impairment charge to right-of-use (“ROU”) assets of approximately $0.7 million incurred in one reporting unit in the Aerospace segment within the Impairment Loss line in the Consolidated Condensed Statement of Operations in the three months ended March 28, 2020. As of April 3, 2021, the Company concluded that no indicators of additional impairment relating to long-lived assets existed.

Foreign Currency Translation

The aggregate foreign currency transaction gain or loss included in operations was insignificant for the three months ended April 3, 2021 and March 28, 2020.

Newly Adopted and Recent Accounting Pronouncements

Recent Accounting Pronouncements Adopted

Standard	Description	Financial Statement Effect or Other Significant Matters
ASU No. 2018-14 Compensation—Retirement Benefits—Defined Benefit Plans—General (Subtopic 715-20)	The standard includes updates to the disclosure requirements for defined benefit plans including several additions, deletions and modifications to the disclosure requirements. The provisions of this ASU are effective for years beginning after December 15, 2020, with early adoption permitted.	This ASU did not have a significant impact on our consolidated financial statements, as it only includes changes to disclosure requirements. Date of adoption: Q1 2021
ASU No. 2019-12 Income Taxes (Topic 740), Simplifying the Accounting for Income Taxes	The amendments in this update simplify the accounting for income taxes by removing certain exceptions to the general principles in Topic 740 and improve consistent application by clarifying and amending existing guidance. The amendments of this standard are effective for fiscal years beginning after December 15, 2020, including interim periods within those fiscal years. Early adoption is permitted, including adoption in any interim period for which financial statements have not been issued, with the amendments to be applied on a respective, modified retrospective or prospective basis, depending on the specific amendment.	This ASU simplifies the accounting for income taxes by, among other things, eliminating certain existing exceptions related to the general approach in ASC 740 relating to franchise taxes, reducing complexity in the interim-period accounting for year-to-date loss limitations and changes in tax laws, and clarifying the accounting for transactions outside of business combination that result in a step-up in the tax basis of goodwill. As we do not have any significant activity associated with these items, this ASU did not have a material impact on consolidated results or operations and financial condition. Date of adoption: Q1 2021

Recent Accounting Pronouncements Not Yet Adopted

Standard	Description	Financial Statement Effect or Other Significant Matters
ASU No. 2020-04 Reference Rate Reform (Topic 848), Facilitation of the Effects of Reference Rate Reform on Financial Reporting	The amendments in Update 2020-04 are elective and apply to all entities that have contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued due to reference rate reform. The new guidance provides the following optional expedients: simplify accounting analyses under current U.S. GAAP for contract modifications, simplify the assessment of hedge effectiveness, allow hedging relationships affected by reference rate reform to continue and allow a one-time election to sell or transfer debt securities classified as held to maturity that reference a rate affected by reference rate reform.	The amendments are effective for all entities from the beginning of an interim period that includes the issuance date of the ASU. An entity may elect to apply the amendments prospectively through December 31, 2022. The administrator of LIBOR has announced it will consult on its intention to cease the publication of the one week and two month USD LIBOR settings immediately following the LIBOR publication on December 31, 2021, and the remaining USD LIBOR settings immediately following the LIBOR publication on June 30, 2023. Extending the publication of certain USD LIBOR tenors until June 30, 2023 would allow most legacy USD LIBOR contracts to mature before LIBOR experiences disruptions. The Company is currently evaluating the impact of adopting this guidance. Planned date of adoption: Before December 31, 2022

We consider the applicability and impact of all ASUs. ASUs not listed above were assessed and determined to be either not applicable, or had or are expected to have minimal impact on our financial statements and related disclosures.

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Revenue

3 Months Ended

Apr. 03, 2021

Revenue from Contract with Customer [Abstract]

Revenue

Revenue

Revenue is recognized when, or as, the Company transfers control of promised products or services to a customer in an amount that reflects the consideration the Company expects to be entitled in exchange for transferring those products or services. Sales shown on the Company's Consolidated Condensed Statements of Operations are from contracts with customers.

Payment terms and conditions vary by contract, although terms generally include a requirement of payment within a range from 30 to 90 days after the performance obligation has been satisfied; or in certain cases, up-front deposits. In circumstances where the timing of revenue recognition differs from the timing of invoicing, the Company has determined that the Company's contracts generally do not include a significant financing component. Taxes collected from customers, which are subsequently remitted to governmental authorities, are excluded from sales.

The Company recognizes an asset for the incremental, material costs of obtaining a contract with a customer if the Company expects the benefit of those costs to be longer than one year and the costs are expected to be recovered. These incremental costs include, but are not limited to, sales commissions incurred to obtain a contract with a customer. As of April 3, 2021, the Company does not have material incremental costs on any open contracts with an original expected duration of greater than one year.

The Company recognizes an asset for certain, material costs to fulfill a contract if it is determined that the costs relate directly to a contract or an anticipated contract that can be specifically identified, generate or enhance resources that will be used in satisfying performance obligations in the future, and are expected to be recovered. Such costs are amortized on a systematic basis that is consistent with the transfer to the customer of the goods to which the asset relates. Start-up costs are expensed as incurred. Capitalized fulfillment costs are included in Inventories in the accompanying Consolidated Condensed Balance Sheets. Should future orders not materialize or it is determined the costs are no longer probable of recovery, the capitalized costs are written off. As of April 3, 2021, the Company does not have material capitalized fulfillment costs.

A performance obligation is a promise in a contract to transfer a distinct good or service to the customer, and is the unit of account. The majority of our contracts have a single performance obligation as the promise to transfer the individual goods or services is not separately identifiable from other promises in the contracts which are, therefore, not distinct. Thus, the contract's transaction price is the revenue recognized when or as that performance obligation is satisfied. Promised goods or services that are immaterial in the context of the contract are not separately assessed as performance obligations.

Some of our contracts have multiple performance obligations, most commonly due to the contract covering multiple phases of the product lifecycle (development, production, maintenance and support). For contracts with multiple performance obligations, the contract’s transaction price is allocated to each performance obligation using our best estimate of the standalone selling price of each distinct good or service in the contract. The primary method used to estimate standalone selling price is the expected cost plus margin approach, under which expected costs are forecast to satisfy a performance obligation and then an

appropriate margin is added for that distinct good or service. Shipping and handling activities that occur after the customer has obtained control of the good are considered fulfillment activities, not performance obligations.

Some of our contracts offer price discounts or free units after a specified volume has been purchased. The Company evaluates these options to determine whether they provide a material right to the customer, representing a separate performance obligation. If the option provides a material right to the customer, revenue is allocated to these rights and recognized when those future goods or services are transferred, or when the option expires.

Contract modifications are routine in the performance of our contracts. Contracts are often modified to account for changes in contract specifications or requirements. In most instances, contract modifications are for goods or services that are distinct, and, therefore, are accounted for as new contracts. The effect of modifications has been reflected when identifying the satisfied and unsatisfied performance obligations, determining the transaction price and allocating the transaction price.

The majority of the Company’s revenue from contracts with customers is recognized at a point in time, when the customer obtains control of the promised product, which is generally upon delivery and acceptance by the customer. These contracts may provide credits or incentives, which may be accounted for as variable consideration. Variable consideration is estimated at the most likely amount to predict the consideration to which the Company will be entitled, and only to the extent it is probable that a subsequent change in estimate will not result in a significant revenue reversal when estimating the amount of revenue to recognize. Variable consideration is treated as a change to the sales transaction price and based on an assessment of all information (i.e., historical, current and forecasted) that is reasonably available to the Company, and estimated at contract inception and updated at the end of each reporting period as additional information becomes available. Most of our contracts do not contain rights to return product; where this right does exist, it is evaluated as possible variable consideration.

For contracts that are subject to the requirement to accrue anticipated losses, the Company recognizes the entire anticipated loss in the period that the loss becomes probable.

For contracts with customers in which the Company promises to provide a product to the customer that has no alternative use to the Company and the Company has enforceable rights to payment for progress completed to date inclusive of profit, the Company satisfies the performance obligation and recognizes revenue over time, using costs incurred to date relative to total estimated costs at completion to measure progress toward satisfying our performance obligations. Incurred cost represents work performed, which corresponds with, and thereby best depicts, the transfer of control to the customer. Contract costs include labor, material and overhead.

The Company also recognizes revenue from service contracts (including service-type warranties) over time. The Company recognizes revenue over time during the term of the agreement as the customer is simultaneously receiving and consuming the benefits provided throughout the Company’s performance. The Company typically recognizes revenue on a straight-line basis throughout the contract period.

On April 3, 2021, we had $297.5 million of remaining performance obligations, which we refer to as total backlog. We expect to recognize approximately $217.2 million of our remaining performance obligations as revenue in 2021.

Costs in excess of billings includes unbilled amounts resulting from revenues under contracts with customers that are satisfied over time and when the cost-to-cost measurement method of revenue recognition is utilized and revenue recognized exceeds the amount billed to the customer, and right to payment is not just subject to the passage of time. Amounts may not exceed their net realizable value. Costs in excess of billings are classified as current assets, within Accounts Receivable, Net of Allowance for Estimated Credit Losses on our Consolidated Condensed Balance Sheets.

Billings in excess of cost includes billings in excess of revenue recognized as well as other elements of deferred revenue, which includes advanced payments, up-front payments, and progress billing payments. Billings in excess of cost are reported in our Consolidated Condensed Balance Sheets, classified as current liabilities, within Customer Advance Payments and Deferred Revenue, and non-current liabilities, within Other Liabilities. To determine the revenue recognized in the period from the beginning balance of billings in excess of cost, the contract liability as of the beginning of the period is recognized as revenue on a contract-by-contract basis when the Company satisfies the performance obligation related to the individual contract. Once the beginning contract liability balance for an individual contract has been fully recognized as revenue, any additional payments received in the period are recognized as revenue once the related costs have been incurred.

We recognized $8.3 million and $8.7 million for the three months ended April 3, 2021 and March 28, 2020, respectively, in revenues that were included in the contract liability balance at the beginning of the period.

The Company's contract assets and contract liabilities consist primarily of costs and profits in excess of billings and billings in excess of cost and profits, respectively. The following table presents the beginning and ending balances of contract assets and contract liabilities during the three months ended April 3, 2021:

(In thousands)	Contract Assets		Contract Liabilities
Beginning Balance, January 1, 2021	$	17,697	$	28,641
Ending Balance, April 3, 2021	$	25,510	$	31,285

The following table presents our revenue disaggregated by Market Segments as follows:

	Three Months Ended
(In thousands)	April 3, 2021		March 28, 2020
Aerospace Segment
Commercial Transport	$	38,208	$	102,775
Military	20,982		18,113
Business Jet	14,028		15,006
Other	8,198		5,176
Aerospace Total	81,416		141,070
Test Systems Segment
Semiconductor	—		1,634
Aerospace & Defense	24,441		14,880
Test Systems Total	24,441		16,514
Total	$	105,857	$	157,584

The following table presents our revenue disaggregated by Product Lines as follows:

	Three Months Ended
(In thousands)	April 3, 2021		March 28, 2020
Aerospace Segment
Electrical Power & Motion	$	29,344	$	69,456
Lighting & Safety	27,100		37,922
Avionics	14,843		22,143
Systems Certification	878		3,331
Structures	1,053		3,042
Other	8,198		5,176
Aerospace Total	81,416		141,070
Test Systems	24,441		16,514
Total	$	105,857	$	157,584

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Inventories

3 Months Ended

Apr. 03, 2021

Inventory Disclosure [Abstract]

Inventories

Inventories

Inventories consisted of the following:

(In thousands)	April 3, 2021		December 31, 2020
Finished Goods	$	26,691	$	26,964
Work in Progress	24,777		21,987
Raw Material	103,786		108,108
	$	155,254	$	157,059

The Company has evaluated the carrying value of existing inventories and believe they are properly reflected at their lower of carrying value or net realizable value. Future changes in demand or other market developments could result in future inventory charges. The Company is actively managing inventories and aligning them to meet known current and future demand

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Property, Plant and Equipment

3 Months Ended

Apr. 03, 2021

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, Plant and Equipment

Property, Plant and Equipment consisted of the following:

(In thousands)	April 3, 2021		December 31, 2020
Land	$	9,848	$	9,891
Buildings and Improvements	75,540		75,493
Machinery and Equipment	120,629		119,444
Construction in Progress	5,770		5,843
	211,787		210,671
Less Accumulated Depreciation	106,856		103,993
	$	104,931	$	106,678

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Intangible Assets

3 Months Ended

Apr. 03, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

Intangible Assets

The following table summarizes acquired intangible assets as follows: 

		April 3, 2021				December 31, 2020
(In thousands)	Weighted Average Life	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Patents	11 years	$	2,146	$	1,913	$	2,146	$	1,891
Non-compete Agreement	4 years	11,082		10,212		11,082		10,085
Trade Names	10 years	11,476		7,784		11,512		7,537
Completed and Unpatented Technology	9 years	47,982		26,939		48,043		25,766
Customer Relationships	15 years	142,367		62,275		142,478		60,096
Total Intangible Assets	12 years	$	215,053	$	109,123	$	215,261	$	105,375

All acquired intangible assets other than goodwill and one trade name are being amortized. Amortization expense for acquired intangibles is summarized as follows: 

	Three Months Ended
(In thousands)	April 3, 2021		March 28, 2020
Amortization Expense	$	3,855	$	4,265

Amortization expense for acquired intangible assets expected for 2021 and for each of the next five years is summarized as follows:

(In thousands)
2021	$	15,356
2022	$	14,911
2023	$	13,878
2024	$	12,856
2025	$	10,935
2026	$	9,533

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Goodwill

3 Months Ended

Apr. 03, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

Goodwill

The following table summarizes the changes in the carrying amount of goodwill for the three months ended April 3, 2021:

(In thousands)	December 31, 2020		Foreign Currency Translation		April 3, 2021
Aerospace	$	36,648	$	15	$	36,663
Test Systems	21,634		—		21,634
	$	58,282	$	15	$	58,297

The Company tests goodwill at the reporting unit level on an annual basis or more frequently if an event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount.

Beginning in the first quarter of 2020 the COVID-19 pandemic negatively impacted the global economy and aerospace industry. Management considered these qualitative factors and the impact to each reporting unit’s revenue and earnings, and determined that it was more likely than not that the fair value of several reporting units was less than its carrying value. Therefore, we performed a quantitative test for all eight reporting units with goodwill as of March 28, 2020. Based on our quantitative assessments, the Company recorded non-cash goodwill impairment charges associated with four Aerospace reporting units, totaling approximately $73.7 million within the Impairment Loss line in the Consolidated Condensed Statement of Operations in the three months ended March 28, 2020.

As of April 3, 2021, the Company concluded that no indicators of additional impairment relating to intangible assets or goodwill existed and an interim test was not performed in the three months then ended.

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Long-Term Debt and Notes Payable

3 Months Ended

Apr. 03, 2021

Debt Disclosure [Abstract]

Long-term Debt and Notes Payable

Long-term Debt and Notes Payable

The Company's Fifth Amended and Restated Credit Agreement (the “Agreement”) provided for a $500 million revolving credit line with the option to increase the line by up to $150 million. The maturity date of the loans under the Agreement is February 16, 2023. The maximum leverage ratio of funded debt, net of cash to Adjusted EBITDA (as defined in the Agreement) was 3.75 to 1, increasing to 4.50 to 1 for up to four fiscal quarters following the closing of an acquisition permitted under the Agreement, subject to limitations. The Company paid interest on the unpaid principal amount of the facility at a rate equal to one-, three- or six-month LIBOR plus between 1.00% and 1.50% based upon the Company’s leverage ratio. The Company also paid a commitment fee to the lenders in an amount equal to between 0.10% and 0.20% on the undrawn portion of the credit facility, based upon the Company’s leverage ratio.

In May 2020, the Company executed an amendment to the Agreement (the “Amended Facility”), which reduced the revolving credit line from $500 million to $375 million. The Amended Facility suspends the application of the leverage ratio up through and including the second quarter of 2021 (the “suspension period”). The maximum net leverage ratio will be 6.00 to 1 for the third quarter of 2021, 5.50 to 1 for the fourth quarter of 2021, 4.50 to 1 for the first quarter of 2022, and return to 3.75 to 1 for each quarter thereafter.

At April 3, 2021, there was $173.0 million outstanding on the revolving credit facility and there remained $200.9 million available subject to the minimum liquidity covenant discussed below, net of outstanding letters of credit. The credit facility allocates up to $20 million of the $375 million revolving credit line for the issuance of letters of credit, including certain existing letters of credit. At April 3, 2021, outstanding letters of credit totaled $1.1 million.

Through the third quarter of 2021, the Amended Facility requires the Company to maintain minimum liquidity, defined as unrestricted cash plus the unused revolving credit commitments, of $180 million at all times. Through the second quarter of 2021, the Company is required to maintain a minimum interest coverage ratio of 1.75x on a quarterly basis, except for the first quarter of 2021, which was set at 1.50x. The Company was in compliance with its financial covenants at April 3, 2021. During the suspension period, the Company will pay interest on the unpaid principal amount of the Amended Facility at a rate equal to one-, three- or six-month LIBOR (which shall be at least 1.00%) plus 2.25%. The Company will also pay a commitment fee to the lenders in an amount equal to 0.35% on the undrawn portion of the Amended Facility. After the suspension period, the Company will pay interest on the unpaid principal amount of the Amended Facility at a rate equal to one-, three- or six-month LIBOR (which shall be at least 1.00%) plus between 1.00% to 2.25% based upon the Company’s leverage ratio. The Company will also pay a commitment fee to the lenders in an amount equal to 0.10% to 0.35% on the undrawn portion of the Amended Facility, based upon the Company’s leverage ratio. The Amended Facility provided for the payment of a consent fee of 15 basis points of the commitment for each consenting lender.

The Amended Facility also temporarily restricts certain activities, including acquisitions and share repurchases, and requires mandatory prepayments during the suspension period when the Company’s cash balance exceeds $100 million. The Company has not made any prepayments during the three months ended April 3, 2021.

The Company’s obligations under the Amended Facility are jointly and severally guaranteed by each domestic subsidiary of the Company other than non-material subsidiaries. The obligations are secured by a first priority lien on substantially all of the Company’s and the guarantors’ assets.

In the event of voluntary or involuntary bankruptcy of the Company or any subsidiary, all unpaid principal and other amounts owing under the Amended Facility automatically become due and payable. Other events of default, such as failure to make payments as they become due and breach of financial and other covenants, change of control, judgments over a certain amount, and cross default under other agreements give the agent the option to declare all such amounts immediately due and payable.

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Product Warranties

3 Months Ended

Apr. 03, 2021

Product Warranties Disclosures [Abstract]

Product Warranties

Product Warranties

In the ordinary course of business, the Company warrants its products against defects in design, materials and workmanship typically over periods ranging from twelve to sixty months. The Company determines warranty reserves needed by product line based on experience and current facts and circumstances. Activity in the warranty accrual is summarized as follows: 

	Three Months Ended
(In thousands)	April 3, 2021		March 28, 2020
Balance at Beginning of Period	$	7,018	$	7,660
Warranties Issued	808		877
Warranties Settled	(685)		(691)
Reassessed Warranty Exposure	(299)		(724)
Balance at End of Period	$	6,842	$	7,122

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Leases

3 Months Ended

Apr. 03, 2021

Leases [Abstract]

Leases

Leases

The Company has operating and finance leases for leased office and manufacturing facilities and equipment leases. We have concluded that when an agreement grants us the right to substantially all of the economic benefits associated with an identified asset, and we are able to direct the use of that asset throughout the term of the agreement, the agreement contains a lease. We lease certain facilities and office equipment under finance leases, and we lease certain production facilities, office equipment and vehicles under operating leases. Some of our leases include options to extend or terminate the leases and these options have been included in the relevant lease term to the extent that they are reasonably certain to be exercised.

The weighted-average remaining term for the Company's operating and financing leases are approximately 6 and 1, respectively. The weighted-average discount rates for the Company's operating and financing leases are approximately 3.3% and 5.1%, respectively.

The following is a summary of the Company's ROU assets and liabilities:

(In thousands)	April 3, 2021		December 31, 2020
Operating Leases:
Operating Right-of-Use Assets, Gross	$	28,458	$	28,678
Less Accumulated Right-of-Use Asset Impairment	1,710		1,710
Less Accumulated Amortization	8,998		8,015
Operating Right-of-Use Assets, Net	$	17,750	$	18,953
Short-term Operating Lease Liabilities	$	4,856	$	4,998
Long-term Operating Lease Liabilities	15,415		16,637
Operating Lease Liabilities	$	20,271	$	21,635
Finance Leases:
Finance Right-of-Use Assets, Gross	$	3,585	$	3,484
Less Accumulated Amortization	2,282		2,039
Finance Right-of-Use Assets, Net — Included in Other Assets	$	1,303	$	1,445
Short-term Finance Lease Liabilities — Included in Accrued Expenses and Other Current Liabilities	$	2,196	$	2,081
Long-term Finance Lease Liabilities — Included in Other Liabilities	232		734
Finance Lease Liabilities	$	2,428	$	2,815

The following is a summary of the Company's total lease costs:

	Three Months Ended
(In thousands)	April 3, 2021		March 28, 2020
Finance Lease Cost:
Amortization of Right-of-Use Assets	$	254	$	255
Interest on Lease Liabilities	35		63
Total Finance Lease Cost	289		318
Operating Lease Cost	1,359		1,448
Right-of-Use Asset Impairment	—		691
Variable Lease Cost	391		272
Short-term Lease Cost (excluding month-to-month)	47		67
Less Sublease and Rental (Income) Expense	(309)		(331)
Total Operating Lease Cost	1,488		2,147
Total Net Lease Cost	$	1,777	$	2,465

The following is a summary of the Company's maturity of lease liabilities:

(In thousands)	Operating Leases		Finance Leases
Remainder of 2021	$	4,120	$	1,701
2022	5,171		800
2023	3,800		—
2024	2,858		—
2025	2,809		—
Thereafter	3,361		—
Total Lease Payments	22,119		2,501
Less: Interest	1,848		73
Total Lease Liability	$	20,271	$	2,428

Leases

Leases

The Company has operating and finance leases for leased office and manufacturing facilities and equipment leases. We have concluded that when an agreement grants us the right to substantially all of the economic benefits associated with an identified asset, and we are able to direct the use of that asset throughout the term of the agreement, the agreement contains a lease. We lease certain facilities and office equipment under finance leases, and we lease certain production facilities, office equipment and vehicles under operating leases. Some of our leases include options to extend or terminate the leases and these options have been included in the relevant lease term to the extent that they are reasonably certain to be exercised.

The weighted-average remaining term for the Company's operating and financing leases are approximately 6 and 1, respectively. The weighted-average discount rates for the Company's operating and financing leases are approximately 3.3% and 5.1%, respectively.

The following is a summary of the Company's ROU assets and liabilities:

(In thousands)	April 3, 2021		December 31, 2020
Operating Leases:
Operating Right-of-Use Assets, Gross	$	28,458	$	28,678
Less Accumulated Right-of-Use Asset Impairment	1,710		1,710
Less Accumulated Amortization	8,998		8,015
Operating Right-of-Use Assets, Net	$	17,750	$	18,953
Short-term Operating Lease Liabilities	$	4,856	$	4,998
Long-term Operating Lease Liabilities	15,415		16,637
Operating Lease Liabilities	$	20,271	$	21,635
Finance Leases:
Finance Right-of-Use Assets, Gross	$	3,585	$	3,484
Less Accumulated Amortization	2,282		2,039
Finance Right-of-Use Assets, Net — Included in Other Assets	$	1,303	$	1,445
Short-term Finance Lease Liabilities — Included in Accrued Expenses and Other Current Liabilities	$	2,196	$	2,081
Long-term Finance Lease Liabilities — Included in Other Liabilities	232		734
Finance Lease Liabilities	$	2,428	$	2,815

The following is a summary of the Company's total lease costs:

	Three Months Ended
(In thousands)	April 3, 2021		March 28, 2020
Finance Lease Cost:
Amortization of Right-of-Use Assets	$	254	$	255
Interest on Lease Liabilities	35		63
Total Finance Lease Cost	289		318
Operating Lease Cost	1,359		1,448
Right-of-Use Asset Impairment	—		691
Variable Lease Cost	391		272
Short-term Lease Cost (excluding month-to-month)	47		67
Less Sublease and Rental (Income) Expense	(309)		(331)
Total Operating Lease Cost	1,488		2,147
Total Net Lease Cost	$	1,777	$	2,465

The following is a summary of the Company's maturity of lease liabilities:

(In thousands)	Operating Leases		Finance Leases
Remainder of 2021	$	4,120	$	1,701
2022	5,171		800
2023	3,800		—
2024	2,858		—
2025	2,809		—
Thereafter	3,361		—
Total Lease Payments	22,119		2,501
Less: Interest	1,848		73
Total Lease Liability	$	20,271	$	2,428

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Income Taxes

3 Months Ended

Apr. 03, 2021

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The effective tax rates were approximately (0.9)% and 3.3% for the three months ended April 3, 2021 and March 28, 2020, respectively. The tax rate in the 2021 period was impacted by State and Foreign income taxes as well as changes in the valuation allowance previously recorded against federal deferred tax assets. As discussed below, the tax rate in the 2020 period was impacted primarily by the initial recording of a valuation allowance against federal deferred tax assets.

As a result of the COVID-19 pandemic and its adverse effects on the global economy and aerospace industry that began to take shape in the first quarter of fiscal 2020, through April 3, 2021 the Company is continuing to forecast that it will generate a taxable loss in 2021. The Company records a valuation allowance against the deferred tax assets if and to the extent it is more likely than not that the Company will not recover the deferred tax assets. In evaluating the need for a valuation allowance, the Company weights all relevant positive and negative evidence, and considers among other factors, historical financial performance, projected future taxable income, scheduled reversals of deferred tax liabilities, the overall business environment, and tax planning strategies. Losses in recent periods and cumulative pre-tax losses in the three-year period ending with the current year, combined with the significant uncertainty brought about by the COVID-19 pandemic, is collectively considered significant negative evidence under ASC 740 when assessing whether an entity can use projected income as a basis for concluding that deferred tax assets are realizable on a more-likely-than not basis. For purposes of assessing the recoverability of deferred tax assets, in the first quarter of 2020 the Company determined that it could not include future projected earnings in the analysis due to recent history of losses and therefore had insufficient objective positive evidence that the Company will generate sufficient future pre-tax income to overcome the negative evidence of cumulative losses. As a result, the Company recorded a valuation allowance against its U.S. federal deferred tax assets in the first quarter of 2020 and continues to maintain the valuation allowance against its U.S. federal deferred tax assets as of April 3, 2021.

On March 11, 2021, the American Rescue Plan Act, or ARPA, was signed into law. The ARPA enacted certain provisions that are relevant to corporate income tax. These provisions did not have a material impact on our income tax provision for the three months ended April 3, 2021.

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Earnings Per Share

3 Months Ended

Apr. 03, 2021

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

Basic and diluted weighted-average shares outstanding are as follows: 

	Three Months Ended
(In thousands)	April 3, 2021	March 28, 2020
Weighted Average Shares - Basic	30,903	30,814
Net Effect of Dilutive Stock Options	—	—
Weighted Average Shares - Diluted	30,903	30,814

Stock options with exercise prices greater than the average market price of the underlying common shares are excluded from the computation of diluted earnings per share because they are out-of-the-money and the effect of their inclusion would be anti-dilutive. The number of common shares covered by out-of-the-money stock options was approximately 652,000 shares as of April 3, 2021 and 785,000 shares as of March 28, 2020. Further, due to our net loss in the three month periods ended April 3,

2021 and March 28, 2020, the assumed exercise of stock compensation had an antidilutive effect and therefore was excluded from the computation of diluted loss per share.

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Shareholders' Equity

3 Months Ended

Apr. 03, 2021

Equity [Abstract]

Shareholders' Equity

Shareholders' Equity

Share Buyback Program

The Company’s Board of Directors from time to time authorizes the repurchase of common stock, which allows the Company to purchase shares of its common stock in accordance with applicable securities laws on the open market or through privately negotiated transactions. Most recently, on September 17, 2019, the Company’s Board of Directors authorized a repurchase of up to $50 million. Approximately 282,000 shares were repurchased in the first quarter of 2020 at a cost of $7.7 million before the 10b5-1 plan associated with the share repurchase program was terminated on February 3, 2020. Under its current credit agreement, and as described further in Note 7, the Company is currently restricted from further stock repurchases.

Comprehensive Loss and Accumulated Other Comprehensive Loss

The components of accumulated other comprehensive loss are as follows: 

(In thousands)	April 3, 2021		December 31, 2020
Foreign Currency Translation Adjustments	$	(5,105)	$	(4,468)
Retirement Liability Adjustment – Before Tax	(13,830)		(14,264)
Tax Benefit of Retirement Liability Adjustment	2,282		2,282
Retirement Liability Adjustment – After Tax	(11,548)		(11,982)
Accumulated Other Comprehensive Loss	$	(16,653)	$	(16,450)

The components of other comprehensive (loss) income are as follows: 

	Three Months Ended
(In thousands)	April 3, 2021		March 28, 2020
Foreign Currency Translation Adjustments	$	(637)	$	(2,304)
Retirement Liability Adjustments:
Reclassifications to General and Administrative Expense:
Amortization of Prior Service Cost	101		101
Amortization of Net Actuarial Losses	333		171
Tax Benefit	—		(57)
Retirement Liability Adjustment	434		215
Other Comprehensive Loss	$	(203)	$	(2,089)

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Supplemental Retirement Plan and Related Post Retirement Benefits

3 Months Ended

Apr. 03, 2021

Retirement Benefits [Abstract]

Supplemental Retirement Plan and Related Post Retirement Benefits

Supplemental Retirement Plan and Related Post Retirement Benefits

The Company has two non-qualified supplemental retirement defined benefit plans (“SERP” and “SERP II”) for certain executive officers. The following table sets forth information regarding the net periodic pension cost for the plans. 

	Three Months Ended
(In thousands)	April 3, 2021		March 28, 2020
Service Cost	$	49	$	55
Interest Cost	191		209
Amortization of Prior Service Cost	97		97
Amortization of Net Actuarial Losses	323		162
Net Periodic Cost	$	660	$	523

Participants in the SERP are entitled to paid medical, dental and long-term care insurance benefits upon retirement under the plan. The net periodic cost was insignificant for the three months ended April 3, 2021 and March 28, 2020.

The service cost component of net periodic benefit costs above is recorded in Selling, General and Administrative Expenses within the Consolidated Condensed Statements of Operations, while the remaining components are recorded in Other Expense, Net of Other Income.

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Sales to Major Customers	3 Months Ended
	Apr. 03, 2021
Risks and Uncertainties [Abstract]
Sales to Major Customers	Sales to Major CustomersThe loss of major customers or a significant reduction in business with a major customer would significantly, negatively impact our sales and earnings. In the three months ended April 3, 2021, the Company had no customer in excess of 10% of consolidated sales. Sales to one customer in the Aerospace segment represented 17% of consolidated sales for the three months ended March 28, 2020.

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Legal Proceedings

3 Months Ended

Apr. 03, 2021

Commitments and Contingencies Disclosure [Abstract]

Legal Proceedings

Legal Proceedings

Lufthansa

One of the Company’s subsidiaries is involved in numerous patent infringement actions brought by Lufthansa Technik AG (“Lufthansa”) in Germany, UK and France. The Company is vigorously defending all such litigation and proceedings. Additional information about these legal proceedings can be found in Note 19 “Legal Proceedings” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020. There were no significant developments in any of these matters during the quarter ended April 3, 2021. The reserve for the German indirect claim was approximately $16.8 million at April 3, 2021, which included an additional $0.1 million in interest accrued during the quarter then ended. We currently believe it is unlikely that the appeals process will be completed and the damages and related interest will be paid within the next twelve months. Therefore, the liability related to this matter is classified within Other Liabilities (non-current) in the Consolidated Condensed Balance Sheets at April 3, 2021 and December 31, 2020.

Other

On March 23, 2020, Teradyne, Inc. filed a complaint against the Company and its subsidiary, Astronics Test Systems (“ATS”) (together, “the Defendants”) in the United States District Court for the Central District of California alleging patent and copyright infringement, and certain other related claims. The Defendants moved to dismiss certain claims from the case. On November 6, 2020, the Court dismissed the Company from the case, and also dismissed a number of claims, though the patent and copyright infringement claims remain. The case is currently in discovery. In addition, on December 21, 2020, ATS filed a petition with the US Patent Trial and Appeal Board (“PTAB”), seeking to invalidate the subject patent. The parties are waiting to learn whether the PTAB will institute the proceeding. The District Court scheduled a claims construction hearing on the patent for June 2021. Fact discovery has begun on both the patent and copyright claims. We will not have a trial date until 2022 at the earliest. No amounts have been accrued for this matter in the April 3, 2021 financial statements, as loss exposure is neither probable nor estimable at this time.

Other than these proceedings, we are not party to any significant pending legal proceedings that management believes will result in a material adverse effect on our financial condition or results of operations.

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Segment Information

3 Months Ended

Apr. 03, 2021

Segment Reporting [Abstract]

Segment Information

Segment Information

Below are the sales and operating profit by segment for the three and three months ended April 3, 2021 and March 28, 2020 and a reconciliation of segment operating profit to income before income taxes. Operating profit is net sales less cost of products sold and other operating expenses excluding interest and corporate expenses. Cost of products sold and other operating expenses are directly identifiable to the respective segment. 

	Three Months Ended
(In thousands)	April 3, 2021			March 28, 2020
Sales:
Aerospace	$	81,430		$	141,137
Less Inter-segment Sales	(14)			(67)
Total Aerospace Sales	81,416			141,070
Test Systems	24,745			16,553
Less Inter-segment Sales	(304)			(39)
Total Test Systems Sales	24,441			16,514
Total Consolidated Sales	$	105,857		$	157,584
Segment Measure of Operating (Loss) Profit and Margins
Aerospace	$	(5,563)		$	(63,145)
	(6.8)		%	(44.8)		%
Test Systems	1,189			722
	4.9		%	4.4		%
Total Segment Measure of Operating (Loss) Profit	(4,374)			(62,423)
	(4.1)		%	(39.6)		%
Additions/Deductions from Segment Measure of Operating (Loss) Profit
Interest Expense, Net of Interest Income	1,758			1,333
Corporate Expenses and Other	5,672			5,521
Loss Before Income Taxes	$	(11,804)		$	(69,277)

Total Assets: 

(In thousands)	April 3, 2021		December 31, 2020
Aerospace	$	481,134	$	484,885
Test Systems	102,138		105,079
Corporate	22,685		29,781
Total Assets	$	605,957	$	619,745

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Fair Value

3 Months Ended

Apr. 03, 2021

Fair Value Disclosures [Abstract]

Fair Value

Fair Value

A fair value measurement assumes that the transaction to sell an asset or transfer a liability occurs in the principal market for the asset or liability or, in the absence of a principal market, the most advantageous market for the asset or liability. Fair value is based upon an exit price model. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and involves consideration of factors specific to the asset or liability.

The Company follows a valuation hierarchy for disclosure of the inputs to valuation used to measure fair value. This hierarchy prioritizes the inputs into three broad levels as follows:

Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities.

Level 2 inputs are quoted prices for similar assets and liabilities in active markets or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument.

Level 3 inputs are unobservable inputs based on our own assumptions used to measure assets and liabilities at fair value.

On a Recurring Basis:

A financial asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement.

On October 4, 2019, the Company acquired the stock of the primary operating subsidiaries as well as certain other assets from mass transit and defense market test solution provider, Diagnosys Test Systems Limited for $7.0 million in cash, plus an earn-out estimated at a fair value of $2.5 million at the time of acquisition. The terms of the Diagnosys acquisition allow for a potential earn-out of up to an additional $13.0 million over the three years post-acquisition based on achievement of new order levels of over $72.0 million during that period. The fair value of this contingent consideration is estimated at $2.2 million as of April 3, 2021. The fair value assigned to the earnout is determined using the real options method, which requires Level 3 inputs such as new order forecasts, discount rate, volatility factors, and other market variables to assess the probability of Diagnosys achieving certain order levels over the period.

There were no other financial assets or liabilities carried at fair value measured on a recurring basis at December 31, 2020 or April 3, 2021.

On a Non-recurring Basis:

The Company tests goodwill at the reporting unit level on an annual basis or more frequently if an event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount. In accordance with the provisions of ASC Topic 350, Intangibles – Goodwill and Other, the Company estimates the fair value of reporting units, utilizing unobservable Level 3 inputs. Level 3 inputs require significant management judgment due to the absence of quoted market prices or observable inputs for assets of a similar nature. The inputs underlying the fair value measurement of the reporting unit under the step-one analysis of the quantitative goodwill impairment test are classified as Level 3 inputs.

As further discussed in Note 6, we performed interim quantitative assessments for the reporting units which had goodwill as of March 28, 2020. Based on our quantitative assessments, the Company recorded non-cash goodwill impairment charges associated with four Aerospace reporting units, totaling approximately $73.7 million within the Impairment Loss line in the Consolidated Condensed Statement of Operations in the three months ended March 28, 2020. The impairment loss was calculated as the difference between the fair value of the reporting unit (which was calculated using level 3 inputs) and the carrying value of the reporting unit. As of April 3, 2021, the Company concluded that no indicators of additional impairment relating to intangible assets or goodwill existed and an interim test was not performed in the three months then ended.

Long-lived assets are evaluated for recoverability whenever adverse effects or changes in circumstances indicate that the carrying value may not be recoverable. The recoverability test consists of comparing the undiscounted projected cash flows of the asset or asset group (which are Level 3 inputs) with the asset of asset group’s carrying amount. Should the carrying amount exceed undiscounted projected cash flows, an impairment loss would be recognized to the extent the carrying amount exceeds fair value. In conjunction with the deteriorating economic conditions associated with the COVID-19 pandemic, we recorded an impairment charge to ROU assets of approximately $0.7 million incurred in the Aerospace segment within the Impairment Loss line in the Consolidated Condensed Statement of Operations in the three months ended March 28, 2020. As of April 3, 2021, the Company concluded that no indicators of additional impairment relating to long-lived assets existed.

Due to their short-term nature, the carrying value of cash and equivalents, accounts receivable, accounts payable, and notes payable approximate fair value. The carrying value of the Company’s variable rate long-term debt instruments also approximates fair value due to the variable rate feature of these instruments.

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Restructuring Charges

3 Months Ended

Apr. 03, 2021

Restructuring and Related Activities [Abstract]

Restructuring Charges

Restructuring Charges

The COVID-19 pandemic has significantly impacted the global economy, and particularly the aerospace industry, resulting in reduced expectations of the Company’s anticipated future operating results. As a result, the Company executed restructuring activities in the form of workforce reduction, primarily in the second quarter of 2020, to align capacity with expected demand. There were no additional restructuring charges associated with this initiative recorded in the three months ended April 3, 2021.

In the fourth quarter of 2019, in an effort to reduce the significant operating losses at our AeroSat business, the Company initiated a restructuring plan to reduce costs and minimize losses of our AeroSat antenna business. The Company incurred $0.3 million in additional restructuring charges associated with severance at AeroSat during the three months ended March 28, 2020.

The following tables reconcile the beginning and ending liability for restructuring charges:

	2021
Balance as of January 1	$	5,631
Restructuring Charges	—
Cash Paid	(981)
Balance as of April 3	$	4,650

The liability is within Accrued Expenses and Other Current Liabilities and is comprised of employee termination benefits expected to be paid within the next 12 months as well as the current portions of payments to be made under AeroSat’s non-cancelable inventory purchase commitments. The non-cancelable purchase commitments are for inventory in the future which is not expected to be purchased prior to the expiration date of such agreements as a result of the restructuring plan.

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Basis of Presentation (Policies)

3 Months Ended

Apr. 03, 2021

Accounting Policies [Abstract]

Basis of Presentation

Basis of PresentationThe accompanying unaudited statements have been prepared in accordance with U.S. generally accepted accounting principles for interim financial information. Accordingly, they do not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments, consisting of normal recurring accruals, considered necessary for a fair presentation have been included

Operating Results

Operating Results

The results of operations for any interim period are not necessarily indicative of results for the full year. In addition, the COVID-19 pandemic has increased the volatility we experience in our financial results in recent periods and this could continue in future interim and annual periods. Operating results for the three months ended April 3, 2021 are not necessarily indicative of the results that may be expected for the year ending December 31, 2021.

The balance sheet at December 31, 2020 has been derived from the audited financial statements at that date, but does not include all of the information and footnotes required by U.S. generally accepted accounting principles (“GAAP”) for complete financial statements.

Trade Accounts Receivable and Contract Assets

Trade Accounts Receivable and Contract AssetsThe allowance for estimated credit losses is based on the Company’s assessment of the collectability of customer accounts. The Company regularly reviews the allowance by considering factors such as the age of the receivable balances, historical experience, credit quality, current economic conditions, and reasonable and supportable forecasts of future economic conditions that may affect a customer’s ability to pay.

Cost of Products Sold, Engineering and Development, Interest, and Selling, General and Administrative Expenses

Cost of Products Sold, Engineering and Development, Interest, and Selling, General and Administrative ExpensesCost of products sold includes the costs to manufacture products such as direct materials and labor and manufacturing overhead as well as all engineering and development costs. The Company is engaged in a variety of engineering and design activities as well as basic research and development activities directed to the substantial improvement or new application of the Company’s existing technologies. These costs are expensed when incurred and included in cost of products sold.

Selling, General and Administrative Expenses

Selling, general and administrative expenses include costs primarily related to our sales and marketing departments and administrative departments.

Goodwill Impairment

Goodwill Impairment

The Company tests goodwill at the reporting unit level on an annual basis or more frequently if an event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount.

Valuation of Long-Lived Assets

Valuation of Long-Lived AssetsLong-lived assets are evaluated for recoverability whenever adverse effects or changes in circumstances indicate that the carrying value may not be recoverable. The recoverability test consists of comparing the undiscounted projected cash flows with the carrying amount. Should the carrying amount exceed undiscounted projected cash flows, an impairment loss would be recognized to the extent the carrying amount exceeds fair value.

Newly Adopted and Recent Accounting Pronouncements

Newly Adopted and Recent Accounting Pronouncements

Recent Accounting Pronouncements Adopted

Standard	Description	Financial Statement Effect or Other Significant Matters
ASU No. 2018-14 Compensation—Retirement Benefits—Defined Benefit Plans—General (Subtopic 715-20)	The standard includes updates to the disclosure requirements for defined benefit plans including several additions, deletions and modifications to the disclosure requirements. The provisions of this ASU are effective for years beginning after December 15, 2020, with early adoption permitted.	This ASU did not have a significant impact on our consolidated financial statements, as it only includes changes to disclosure requirements. Date of adoption: Q1 2021
ASU No. 2019-12 Income Taxes (Topic 740), Simplifying the Accounting for Income Taxes	The amendments in this update simplify the accounting for income taxes by removing certain exceptions to the general principles in Topic 740 and improve consistent application by clarifying and amending existing guidance. The amendments of this standard are effective for fiscal years beginning after December 15, 2020, including interim periods within those fiscal years. Early adoption is permitted, including adoption in any interim period for which financial statements have not been issued, with the amendments to be applied on a respective, modified retrospective or prospective basis, depending on the specific amendment.	This ASU simplifies the accounting for income taxes by, among other things, eliminating certain existing exceptions related to the general approach in ASC 740 relating to franchise taxes, reducing complexity in the interim-period accounting for year-to-date loss limitations and changes in tax laws, and clarifying the accounting for transactions outside of business combination that result in a step-up in the tax basis of goodwill. As we do not have any significant activity associated with these items, this ASU did not have a material impact on consolidated results or operations and financial condition. Date of adoption: Q1 2021

Recent Accounting Pronouncements Not Yet Adopted

Standard	Description	Financial Statement Effect or Other Significant Matters
ASU No. 2020-04 Reference Rate Reform (Topic 848), Facilitation of the Effects of Reference Rate Reform on Financial Reporting	The amendments in Update 2020-04 are elective and apply to all entities that have contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued due to reference rate reform. The new guidance provides the following optional expedients: simplify accounting analyses under current U.S. GAAP for contract modifications, simplify the assessment of hedge effectiveness, allow hedging relationships affected by reference rate reform to continue and allow a one-time election to sell or transfer debt securities classified as held to maturity that reference a rate affected by reference rate reform.	The amendments are effective for all entities from the beginning of an interim period that includes the issuance date of the ASU. An entity may elect to apply the amendments prospectively through December 31, 2022. The administrator of LIBOR has announced it will consult on its intention to cease the publication of the one week and two month USD LIBOR settings immediately following the LIBOR publication on December 31, 2021, and the remaining USD LIBOR settings immediately following the LIBOR publication on June 30, 2023. Extending the publication of certain USD LIBOR tenors until June 30, 2023 would allow most legacy USD LIBOR contracts to mature before LIBOR experiences disruptions. The Company is currently evaluating the impact of adopting this guidance. Planned date of adoption: Before December 31, 2022

Fair Value

Fair Value

A fair value measurement assumes that the transaction to sell an asset or transfer a liability occurs in the principal market for the asset or liability or, in the absence of a principal market, the most advantageous market for the asset or liability. Fair value is based upon an exit price model. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and involves consideration of factors specific to the asset or liability.

The Company follows a valuation hierarchy for disclosure of the inputs to valuation used to measure fair value. This hierarchy prioritizes the inputs into three broad levels as follows:

Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities.

Level 2 inputs are quoted prices for similar assets and liabilities in active markets or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument.

Level 3 inputs are unobservable inputs based on our own assumptions used to measure assets and liabilities at fair value.

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Revenue (Tables)

3 Months Ended

Apr. 03, 2021

Revenue from Contract with Customer [Abstract]

Summary of Contract Assets and Liabilities

The following table presents the beginning and ending balances of contract assets and contract liabilities during the three months ended April 3, 2021:

(In thousands)	Contract Assets		Contract Liabilities
Beginning Balance, January 1, 2021	$	17,697	$	28,641
Ending Balance, April 3, 2021	$	25,510	$	31,285

Disaggregation of Revenue

The following table presents our revenue disaggregated by Market Segments as follows:

	Three Months Ended
(In thousands)	April 3, 2021		March 28, 2020
Aerospace Segment
Commercial Transport	$	38,208	$	102,775
Military	20,982		18,113
Business Jet	14,028		15,006
Other	8,198		5,176
Aerospace Total	81,416		141,070
Test Systems Segment
Semiconductor	—		1,634
Aerospace & Defense	24,441		14,880
Test Systems Total	24,441		16,514
Total	$	105,857	$	157,584

The following table presents our revenue disaggregated by Product Lines as follows:

	Three Months Ended
(In thousands)	April 3, 2021		March 28, 2020
Aerospace Segment
Electrical Power & Motion	$	29,344	$	69,456
Lighting & Safety	27,100		37,922
Avionics	14,843		22,143
Systems Certification	878		3,331
Structures	1,053		3,042
Other	8,198		5,176
Aerospace Total	81,416		141,070
Test Systems	24,441		16,514
Total	$	105,857	$	157,584

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Inventories (Tables)

3 Months Ended

Apr. 03, 2021

Inventory Disclosure [Abstract]

Summary of Inventories

Inventories consisted of the following:

(In thousands)	April 3, 2021		December 31, 2020
Finished Goods	$	26,691	$	26,964
Work in Progress	24,777		21,987
Raw Material	103,786		108,108
	$	155,254	$	157,059

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Property, Plant and Equipment (Tables)

3 Months Ended

Apr. 03, 2021

Property, Plant and Equipment [Abstract]

Summary of Property, Plant and Equipment

Property, Plant and Equipment consisted of the following:

(In thousands)	April 3, 2021		December 31, 2020
Land	$	9,848	$	9,891
Buildings and Improvements	75,540		75,493
Machinery and Equipment	120,629		119,444
Construction in Progress	5,770		5,843
	211,787		210,671
Less Accumulated Depreciation	106,856		103,993
	$	104,931	$	106,678

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Intangible Assets (Tables)

3 Months Ended

Apr. 03, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Acquired Intangible Assets

The following table summarizes acquired intangible assets as follows: 

		April 3, 2021				December 31, 2020
(In thousands)	Weighted Average Life	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Patents	11 years	$	2,146	$	1,913	$	2,146	$	1,891
Non-compete Agreement	4 years	11,082		10,212		11,082		10,085
Trade Names	10 years	11,476		7,784		11,512		7,537
Completed and Unpatented Technology	9 years	47,982		26,939		48,043		25,766
Customer Relationships	15 years	142,367		62,275		142,478		60,096
Total Intangible Assets	12 years	$	215,053	$	109,123	$	215,261	$	105,375

Summary of Amortization Expense for Acquired Intangibles

All acquired intangible assets other than goodwill and one trade name are being amortized. Amortization expense for acquired intangibles is summarized as follows: 

	Three Months Ended
(In thousands)	April 3, 2021		March 28, 2020
Amortization Expense	$	3,855	$	4,265

Summary of Amortization Expense for Intangible Assets for Each of Next Five Years

Amortization expense for acquired intangible assets expected for 2021 and for each of the next five years is summarized as follows:

(In thousands)
2021	$	15,356
2022	$	14,911
2023	$	13,878
2024	$	12,856
2025	$	10,935
2026	$	9,533

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Goodwill (Tables)

3 Months Ended

Apr. 03, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Changes in Carrying Amount of Goodwill

The following table summarizes the changes in the carrying amount of goodwill for the three months ended April 3, 2021:

(In thousands)	December 31, 2020		Foreign Currency Translation		April 3, 2021
Aerospace	$	36,648	$	15	$	36,663
Test Systems	21,634		—		21,634
	$	58,282	$	15	$	58,297

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Product Warranties (Tables)

3 Months Ended

Apr. 03, 2021

Product Warranties Disclosures [Abstract]

Summary of Activity in Warranty Accrual

The Company determines warranty reserves needed by product line based on experience and current facts and circumstances. Activity in the warranty accrual is summarized as follows: 

	Three Months Ended
(In thousands)	April 3, 2021		March 28, 2020
Balance at Beginning of Period	$	7,018	$	7,660
Warranties Issued	808		877
Warranties Settled	(685)		(691)
Reassessed Warranty Exposure	(299)		(724)
Balance at End of Period	$	6,842	$	7,122

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Leases (Tables)

3 Months Ended

Apr. 03, 2021

Leases [Abstract]

Summary of ROU Assets and Liabilities

The following is a summary of the Company's ROU assets and liabilities:

(In thousands)	April 3, 2021		December 31, 2020
Operating Leases:
Operating Right-of-Use Assets, Gross	$	28,458	$	28,678
Less Accumulated Right-of-Use Asset Impairment	1,710		1,710
Less Accumulated Amortization	8,998		8,015
Operating Right-of-Use Assets, Net	$	17,750	$	18,953
Short-term Operating Lease Liabilities	$	4,856	$	4,998
Long-term Operating Lease Liabilities	15,415		16,637
Operating Lease Liabilities	$	20,271	$	21,635
Finance Leases:
Finance Right-of-Use Assets, Gross	$	3,585	$	3,484
Less Accumulated Amortization	2,282		2,039
Finance Right-of-Use Assets, Net — Included in Other Assets	$	1,303	$	1,445
Short-term Finance Lease Liabilities — Included in Accrued Expenses and Other Current Liabilities	$	2,196	$	2,081
Long-term Finance Lease Liabilities — Included in Other Liabilities	232		734
Finance Lease Liabilities	$	2,428	$	2,815

Summary of Lease Costs and Cash Paid

The following is a summary of the Company's total lease costs:

	Three Months Ended
(In thousands)	April 3, 2021		March 28, 2020
Finance Lease Cost:
Amortization of Right-of-Use Assets	$	254	$	255
Interest on Lease Liabilities	35		63
Total Finance Lease Cost	289		318
Operating Lease Cost	1,359		1,448
Right-of-Use Asset Impairment	—		691
Variable Lease Cost	391		272
Short-term Lease Cost (excluding month-to-month)	47		67
Less Sublease and Rental (Income) Expense	(309)		(331)
Total Operating Lease Cost	1,488		2,147
Total Net Lease Cost	$	1,777	$	2,465

Summary of Maturity of Lease Liabilities, Operating Leases

The following is a summary of the Company's maturity of lease liabilities:

(In thousands)	Operating Leases		Finance Leases
Remainder of 2021	$	4,120	$	1,701
2022	5,171		800
2023	3,800		—
2024	2,858		—
2025	2,809		—
Thereafter	3,361		—
Total Lease Payments	22,119		2,501
Less: Interest	1,848		73
Total Lease Liability	$	20,271	$	2,428

Summary of Maturity of Lease Liabilities, Financing Leases

The following is a summary of the Company's maturity of lease liabilities:

(In thousands)	Operating Leases		Finance Leases
Remainder of 2021	$	4,120	$	1,701
2022	5,171		800
2023	3,800		—
2024	2,858		—
2025	2,809		—
Thereafter	3,361		—
Total Lease Payments	22,119		2,501
Less: Interest	1,848		73
Total Lease Liability	$	20,271	$	2,428

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Earnings Per Share (Tables)

3 Months Ended

Apr. 03, 2021

Earnings Per Share [Abstract]

Summary of Basic and Diluted Weighted-Average Shares Outstanding

Basic and diluted weighted-average shares outstanding are as follows: 

	Three Months Ended
(In thousands)	April 3, 2021	March 28, 2020
Weighted Average Shares - Basic	30,903	30,814
Net Effect of Dilutive Stock Options	—	—
Weighted Average Shares - Diluted	30,903	30,814

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Shareholders' Equity (Tables)

3 Months Ended

Apr. 03, 2021

Equity [Abstract]

Components of Accumulated Other Comprehensive Loss

The components of accumulated other comprehensive loss are as follows: 

(In thousands)	April 3, 2021		December 31, 2020
Foreign Currency Translation Adjustments	$	(5,105)	$	(4,468)
Retirement Liability Adjustment – Before Tax	(13,830)		(14,264)
Tax Benefit of Retirement Liability Adjustment	2,282		2,282
Retirement Liability Adjustment – After Tax	(11,548)		(11,982)
Accumulated Other Comprehensive Loss	$	(16,653)	$	(16,450)

Components of Other Comprehensive Income (Loss)

The components of other comprehensive (loss) income are as follows: 

	Three Months Ended
(In thousands)	April 3, 2021		March 28, 2020
Foreign Currency Translation Adjustments	$	(637)	$	(2,304)
Retirement Liability Adjustments:
Reclassifications to General and Administrative Expense:
Amortization of Prior Service Cost	101		101
Amortization of Net Actuarial Losses	333		171
Tax Benefit	—		(57)
Retirement Liability Adjustment	434		215
Other Comprehensive Loss	$	(203)	$	(2,089)

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Supplemental Retirement Plan and Related Post Retirement Benefits (Tables)

3 Months Ended

Apr. 03, 2021

Retirement Benefits [Abstract]

Summary of the Components of Net Periodic Cost

The following table sets forth information regarding the net periodic pension cost for the plans. 

	Three Months Ended
(In thousands)	April 3, 2021		March 28, 2020
Service Cost	$	49	$	55
Interest Cost	191		209
Amortization of Prior Service Cost	97		97
Amortization of Net Actuarial Losses	323		162
Net Periodic Cost	$	660	$	523

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Segment Information (Tables)

3 Months Ended

Apr. 03, 2021

Segment Reporting [Abstract]

Summary of Segment Reporting Information

Below are the sales and operating profit by segment for the three and three months ended April 3, 2021 and March 28, 2020 and a reconciliation of segment operating profit to income before income taxes. Operating profit is net sales less cost of products sold and other operating expenses excluding interest and corporate expenses. Cost of products sold and other operating expenses are directly identifiable to the respective segment. 

	Three Months Ended
(In thousands)	April 3, 2021			March 28, 2020
Sales:
Aerospace	$	81,430		$	141,137
Less Inter-segment Sales	(14)			(67)
Total Aerospace Sales	81,416			141,070
Test Systems	24,745			16,553
Less Inter-segment Sales	(304)			(39)
Total Test Systems Sales	24,441			16,514
Total Consolidated Sales	$	105,857		$	157,584
Segment Measure of Operating (Loss) Profit and Margins
Aerospace	$	(5,563)		$	(63,145)
	(6.8)		%	(44.8)		%
Test Systems	1,189			722
	4.9		%	4.4		%
Total Segment Measure of Operating (Loss) Profit	(4,374)			(62,423)
	(4.1)		%	(39.6)		%
Additions/Deductions from Segment Measure of Operating (Loss) Profit
Interest Expense, Net of Interest Income	1,758			1,333
Corporate Expenses and Other	5,672			5,521
Loss Before Income Taxes	$	(11,804)		$	(69,277)

Total Assets: 

(In thousands)	April 3, 2021		December 31, 2020
Aerospace	$	481,134	$	484,885
Test Systems	102,138		105,079
Corporate	22,685		29,781
Total Assets	$	605,957	$	619,745

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Restructuring Charges (Tables)

3 Months Ended

Apr. 03, 2021

Restructuring and Related Activities [Abstract]

Liabilities for Restructuring Charges

The following tables reconcile the beginning and ending liability for restructuring charges:

	2021
Balance as of January 1	$	5,631
Restructuring Charges	—
Cash Paid	(981)
Balance as of April 3	$	4,650

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Basis of Presentation (Details)	1 Months Ended		3 Months Ended
	Apr. 30, 2021 USD ($)	Feb. 28, 2021 USD ($)	Apr. 03, 2021 USD ($) reporting_unit element	Mar. 28, 2020 USD ($)	Dec. 31, 2020 USD ($)
Business Acquisition [Line Items]
Number of elements for contingent earnouts | element			2
COVID-19 related government assistance amount			$ 600,000
Allowance for doubtful accounts			3,500,000		$ 3,200,000
Bad debt expense			300,000
Research and development, design and related engineering			$ 21,600,000	$ 26,200,000
Number of reporting units impaired | reporting_unit			4
Right-of-use asset impairment			$ 0	$ 691,000
Cost of Products Sold
Business Acquisition [Line Items]
COVID-19 related government assistance amount			500,000
Selling, General and Administrative
Business Acquisition [Line Items]
COVID-19 related government assistance amount			100,000
Aerospace Segment
Business Acquisition [Line Items]
Impairment loss			73,700,000
Held for Sale | First Earnout
Business Acquisition [Line Items]
Maximum total earnout proceeds			35,000,000.0
Held for Sale | Second Earnout
Business Acquisition [Line Items]
Maximum total earnout proceeds			$ 0
Held for Sale | Test Systems Segment
Business Acquisition [Line Items]
Contingent earn-outs		$ 10,700,000
Held for Sale | Test Systems Segment | Subsequent Event
Business Acquisition [Line Items]
Contingent earn-outs	$ 7,100,000

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Revenue - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 297.5
Revenue recognized included in contract liability balance	8.3	$ 8.7
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-04
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 217.2
Period of recognition	9 months

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Revenue - Summary of Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	Apr. 03, 2021	Jan. 01, 2020
Revenue from Contract with Customer [Abstract]
Contract Assets	$ 25,510	$ 17,697
Contract Liabilities	$ 31,285	$ 28,641

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Revenue - Revenue Disaggregated by Market (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Disaggregation of Revenue [Line Items]
Sales	$ 105,857	$ 157,584
Commercial Transport
Disaggregation of Revenue [Line Items]
Sales	38,208	102,775
Military
Disaggregation of Revenue [Line Items]
Sales	20,982	18,113
Business Jet
Disaggregation of Revenue [Line Items]
Sales	14,028	15,006
Other
Disaggregation of Revenue [Line Items]
Sales	8,198	5,176
Aerospace Segment
Disaggregation of Revenue [Line Items]
Sales	81,416	141,070
Semiconductor
Disaggregation of Revenue [Line Items]
Sales	0	1,634
Aerospace & Defense
Disaggregation of Revenue [Line Items]
Sales	24,441	14,880
Test Systems Segment
Disaggregation of Revenue [Line Items]
Sales	$ 24,441	$ 16,514

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Revenue - Disaggregated by Product Lines (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Disaggregation of Revenue [Line Items]
Sales	$ 105,857	$ 157,584
Aerospace Segment
Disaggregation of Revenue [Line Items]
Sales	81,416	141,070
Test Systems Segment
Disaggregation of Revenue [Line Items]
Sales	24,441	16,514
Electrical Power & Motion
Disaggregation of Revenue [Line Items]
Sales	29,344	69,456
Lighting & Safety
Disaggregation of Revenue [Line Items]
Sales	27,100	37,922
Avionics
Disaggregation of Revenue [Line Items]
Sales	14,843	22,143
Systems Certification
Disaggregation of Revenue [Line Items]
Sales	878	3,331
Structures
Disaggregation of Revenue [Line Items]
Sales	1,053	3,042
Other
Disaggregation of Revenue [Line Items]
Sales	$ 8,198	$ 5,176

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Inventories - Summary of Inventories (Details) - USD ($) $ in Thousands	Apr. 03, 2021	Dec. 31, 2020
Inventory Disclosure [Abstract]
Finished Goods	$ 26,691	$ 26,964
Work in Progress	24,777	21,987
Raw Material	103,786	108,108
Inventory, net	$ 155,254	$ 157,059

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Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Apr. 03, 2021	Dec. 31, 2020
Property, Plant and Equipment
Property, plant and equipment, gross	$ 211,787	$ 210,671
Less Accumulated Depreciation	106,856	103,993
Property, plant and equipment, net	104,931	106,678
Land
Property, Plant and Equipment
Property, plant and equipment, gross	9,848	9,891
Buildings and Improvements
Property, Plant and Equipment
Property, plant and equipment, gross	75,540	75,493
Machinery and Equipment
Property, Plant and Equipment
Property, plant and equipment, gross	120,629	119,444
Construction in Progress
Property, Plant and Equipment
Property, plant and equipment, gross	$ 5,770	$ 5,843

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Intangible Assets - Summary of Acquired Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets
Weighted Average Life	12 years
Gross Carrying Amount	$ 215,053	$ 215,261
Accumulated Amortization	$ 109,123	105,375
Patents
Finite-Lived Intangible Assets
Weighted Average Life	11 years
Gross Carrying Amount	$ 2,146	2,146
Accumulated Amortization	$ 1,913	1,891
Non-compete Agreement
Finite-Lived Intangible Assets
Weighted Average Life	4 years
Gross Carrying Amount	$ 11,082	11,082
Accumulated Amortization	$ 10,212	10,085
Trade Names
Finite-Lived Intangible Assets
Weighted Average Life	10 years
Gross Carrying Amount	$ 11,476	11,512
Accumulated Amortization	$ 7,784	7,537
Completed and Unpatented Technology
Finite-Lived Intangible Assets
Weighted Average Life	9 years
Gross Carrying Amount	$ 47,982	48,043
Accumulated Amortization	$ 26,939	25,766
Customer Relationships
Finite-Lived Intangible Assets
Weighted Average Life	15 years
Gross Carrying Amount	$ 142,367	142,478
Accumulated Amortization	$ 62,275	$ 60,096

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Intangible Assets - Summary of Amortization Expense for Acquired Intangibles (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization Expense	$ 3,855	$ 4,265

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Intangible Assets - Summary of Future Amortization Expense for Intangible Assets (Details) $ in Thousands	Apr. 03, 2021 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2021	$ 15,356
2022	14,911
2023	13,878
2024	12,856
2025	10,935
2026	$ 9,533

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Goodwill - Summary of Changes in Carrying Amount of Goodwill (Details) $ in Thousands	3 Months Ended
	Apr. 03, 2021 USD ($)
Goodwill [Roll Forward]
Balance at beginning of period	$ 58,282
Foreign Currency Translation	15
Balance at end of period	58,297
Operating Segments | Aerospace Segment
Goodwill [Roll Forward]
Balance at beginning of period	36,648
Foreign Currency Translation	15
Balance at end of period	36,663
Operating Segments | Test Systems Segment
Goodwill [Roll Forward]
Balance at beginning of period	21,634
Foreign Currency Translation	0
Balance at end of period	$ 21,634

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Goodwill - Narrative (Details) $ in Millions	3 Months Ended
	Apr. 03, 2021 USD ($) reporting_unit	Mar. 28, 2020 reporting_unit
Goodwill
Number of reporting units		8
Number of reporting units impaired	4
Aerospace Segment
Goodwill
Impairment loss | $	$ 73.7

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Long-Term Debt and Notes Payable (Details)	3 Months Ended
	Oct. 02, 2021 USD ($)	Apr. 03, 2021 USD ($) fiscal_quarter	Dec. 31, 2022	Oct. 01, 2022	Jul. 02, 2022	Apr. 02, 2022	Dec. 31, 2021	Jul. 03, 2021	May 04, 2020 USD ($)
Debt Instrument
Minimum liquidity		$ 100,000,000
Amended and Restated Credit Agreement
Debt Instrument
Ratio of funded debt to Adjusted EBITDA		3.75
Duration of permitted leverage ratio following acquisition, number of fiscal quarters | fiscal_quarter		4
Amended and Restated Credit Agreement | Maximum
Debt Instrument
Ratio of funded debt to Adjusted EBITDA		4.50
Line of Credit | Forecast
Debt Instrument
Covenant, leverage ratio, maximum	6.00		3.75	3.75	3.75	4.50	5.50
Line of Credit | Revolving Credit Facility
Debt Instrument
Minimum interest coverage ratio on a quarterly basis		1.50
Commitment fee percentage		0.35%
Line of credit facility, consent fee percentage		0.15%
Line of Credit | Revolving Credit Facility | Forecast
Debt Instrument
Minimum liquidity	$ 180,000,000
Minimum interest coverage ratio on a quarterly basis								1.75
Line of Credit | Revolving Credit Facility | Minimum
Debt Instrument
Commitment fee percentage		0.10%
Line of Credit | Revolving Credit Facility | Maximum
Debt Instrument
Commitment fee percentage		0.35%
Line of Credit | Revolving Credit Facility | LIBOR
Debt Instrument
Basis points for variable interest rate		1.00%
Line of Credit | Revolving Credit Facility | LIBOR | Minimum
Debt Instrument
Basis points for variable interest rate		1.00%
Line of Credit | Revolving Credit Facility | LIBOR | Maximum
Debt Instrument
Basis points for variable interest rate		2.25%
Line of Credit | Fifth Amended and Restated Credit Agreement | Revolving Credit Facility
Debt Instrument
Maximum borrowing capacity		$ 500,000,000							$ 375,000,000
Line of credit facility increase amount		150,000,000
Credit facility outstanding		173,000,000.0
Revolving line of credit		200,900,000
Line of Credit | Fifth Amended and Restated Credit Agreement | Letter of Credit
Debt Instrument
Credit facility allocated (up to)		20,000,000
Outstanding letters of credit		$ 1,100,000
Line of Credit | Fourth Amended And Restated Credit Agreement | Revolving Credit Facility | Minimum
Debt Instrument
Basis points for commitment fee		0.10%
Line of Credit | Fourth Amended And Restated Credit Agreement | Revolving Credit Facility | Maximum
Debt Instrument
Basis points for commitment fee		0.20%
Line of Credit | Fourth Amended And Restated Credit Agreement | Revolving Credit Facility | LIBOR | Minimum
Debt Instrument
Basis points for variable interest rate		1.00%
Line of Credit | Fourth Amended And Restated Credit Agreement | Revolving Credit Facility | LIBOR | Maximum
Debt Instrument
Basis points for variable interest rate		1.50%

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Product Warranties - Summary of Activity in Warranty Accrual (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Movement in Standard Product Warranty Accrual [Roll Forward]
Balance at Beginning of Period	$ 7,018	$ 7,660
Warranties Issued	808	877
Warranties Settled	(685)	(691)
Reassessed Warranty Exposure	(299)	(724)
Balance at End of Period	$ 6,842	$ 7,122
Minimum
Product Liability Contingency [Line Items]
Product warranty period	12 months
Maximum
Product Liability Contingency [Line Items]
Product warranty period	60 months

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Leases - Narrative (Details)	Apr. 03, 2021
Leases [Abstract]
Operating leases, weighted-average remaining term	6 years
Financing leases, weighted-average remaining term	1 year
Operating leases, weighted-average discount rate	3.30%
Finance leases, weighted average discount rate	5.10%

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Leases - Summary of ROU Assets and Liabilities (Details) - USD ($) $ in Thousands	Apr. 03, 2021	Dec. 31, 2020
Operating Leases:
Operating Right-of-Use Assets, Gross	$ 28,458	$ 28,678
Less Accumulated Right-of-Use Asset Impairment	1,710	1,710
Less Accumulated Amortization	8,998	8,015
Operating Right-of-Use Assets, Net	17,750	18,953
Short-term Operating Lease Liabilities	4,856	4,998
Long-term Operating Lease Liabilities	15,415	16,637
Operating Lease Liabilities	20,271	21,635
Finance Leases:
Finance Right-of-Use Assets, Gross	3,585	3,484
Less Accumulated Amortization	2,282	2,039
Finance Right-of-Use Assets, Net — Included in Other Assets	1,303	1,445
Short-term Finance Lease Liabilities — Included in Accrued Expenses and Other Current Liabilities	2,196	2,081
Long-term Finance Lease Liabilities — Included in Other Liabilities	232	734
Finance Lease Liabilities	$ 2,428	$ 2,815
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssets	us-gaap:OtherAssets
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued Expenses and Other Current Liabilities	Accrued Expenses and Other Current Liabilities
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other Liabilities	Other Liabilities

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Leases - Summary of Lease Cost and Cash Paid (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Leases [Abstract]
Amortization of Right-of-Use Assets	$ 254	$ 255
Interest on Lease Liabilities	35	63
Total Finance Lease Cost	289	318
Operating Lease Cost	1,359	1,448
Right-of-Use Asset Impairment	0	691
Variable Lease Cost	391	272
Short-term Lease Cost (excluding month-to-month)	47	67
Less Sublease and Rental (Income) Expense	(309)	(331)
Total Operating Lease Cost	1,488	2,147
Total Net Lease Cost	$ 1,777	$ 2,465

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Leases - Summary of Maturity of Lease Liabilities (Details) - USD ($) $ in Thousands	Apr. 03, 2021	Dec. 31, 2020
Operating Leases
Remainder of 2021	$ 4,120
2022	5,171
2023	3,800
2024	2,858
2025	2,809
Thereafter	3,361
Total Lease Payments	22,119
Less: Interest	1,848
Total Lease Liability	20,271	$ 21,635
Finance Leases
Remainder of 2021	1,701
2022	800
2023	0
2024	0
2025	0
Thereafter	0
Total Lease Payments	2,501
Less: Interest	73
Total Lease Liability	$ 2,428	$ 2,815

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Income Taxes (Details)	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Income Tax Disclosure [Abstract]
Effective tax rate	(0.90%)	3.30%

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Earnings Per Share - Earnings Per Share Computations (Details) - shares shares in Thousands	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Earnings Per Share [Abstract]
Weighted Average Shares - Basic (in shares)	30,903	30,814
Net Effect of Dilutive Stock Options (in shares)	0	0
Weighted Average Shares - Diluted (in shares)	30,903	30,814
Stock Option
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Common shares excluded from computation	652	785

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Shareholders' Equity - Narrative (Details) - USD ($) shares in Thousands	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020	Sep. 17, 2019
Stockholders Equity
Authorized repurchase of common stock, amount			$ 50,000,000
Treasury Stock
Stockholders Equity
Purchase (in shares)	0	282
Value of shares repurchased	$ 0	$ 7,732,000

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Shareholders' Equity - Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	Apr. 03, 2021	Dec. 31, 2020	Mar. 28, 2020	Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income	$ 260,304	$ 270,371	$ 313,809
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income	(5,105)	(4,468)
Retirement Liability Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Retirement Liability Adjustment – Before Tax	(13,830)	(14,264)
Tax Benefit of Retirement Liability Adjustment	2,282	2,282
Accumulated other comprehensive income	(11,548)	(11,982)
Accumulated Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income	$ (16,653)	$ (16,450)	$ (17,717)	$ (15,628)

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Shareholders' Equity - Components of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Loss	$ (203)	$ (2,089)
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Loss	(637)	(2,304)
Amortization of Prior Service Cost
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification to General and Administrative Expense	101	101
Amortization of Net Actuarial Losses
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification to General and Administrative Expense	333	171
Retirement Liability Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Tax Benefit	0	(57)
Other Comprehensive Loss	$ 434	$ 215

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Supplemental Retirement Plan and Related Post Retirement Benefits - Summary of the Components of Net Periodic Cost (Details) $ in Thousands	3 Months Ended
	Apr. 03, 2021 USD ($) retirement_plan	Mar. 28, 2020 USD ($)
Retirement Benefits [Abstract]
Number of non-qualified supplemental retirement defined benefit plans | retirement_plan	2
SERP
Defined Benefit Plan Disclosure
Service Cost	$ 49	$ 55
Interest Cost	191	209
Amortization of Prior Service Cost	97	97
Amortization of Net Actuarial Losses	323	162
Net Periodic Cost	$ 660	$ 523

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Sales to Major Customers (Details) - customer	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Segment Reporting, Asset Reconciling Item
Number of major customers	0	1
Sales Revenue, Net | Customer Concentration Risk | Major Customer One
Segment Reporting, Asset Reconciling Item
Percent of consolidated revenue		17.00%

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Legal Proceedings (Details) - Germany - Indirect Sales - Patent Infringement - AES $ in Millions	3 Months Ended
	Apr. 03, 2021 USD ($)
Loss Contingencies [Line Items]
Non-cash litigation settlement	$ 16.8
Litigation settlement interest	$ 0.1

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Segment Information - Summary of Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020	Dec. 31, 2020
Segment Reporting Information
Sales	$ 105,857	$ 157,584
Segment Measure of Operating (Loss) Profit and Margins
Total Operating Profit	(9,512)	(67,556)
Additions/Deductions from Segment Measure of Operating (Loss) Profit
Interest Expense, Net of Interest Income	1,758	1,333
Loss Before Income Taxes	(11,804)	(69,277)
Total Assets	605,957		$ 619,745
Aerospace Segment
Segment Reporting Information
Sales	81,416	141,070
Test Systems Segment
Segment Reporting Information
Sales	24,441	16,514
Operating Segments
Segment Measure of Operating (Loss) Profit and Margins
Total Operating Profit	$ (4,374)	$ (62,423)
Operating margins, percentage	(4.10%)	(39.60%)
Operating Segments | Aerospace Segment
Segment Reporting Information
Sales	$ 81,430	$ 141,137
Segment Measure of Operating (Loss) Profit and Margins
Total Operating Profit	$ (5,563)	$ (63,145)
Operating margins, percentage	(6.80%)	(44.80%)
Additions/Deductions from Segment Measure of Operating (Loss) Profit
Total Assets	$ 481,134		484,885
Operating Segments | Test Systems Segment
Segment Reporting Information
Sales	24,745	$ 16,553
Segment Measure of Operating (Loss) Profit and Margins
Total Operating Profit	$ 1,189	$ 722
Operating margins, percentage	4.90%	4.40%
Additions/Deductions from Segment Measure of Operating (Loss) Profit
Total Assets	$ 102,138		105,079
Less Inter-segment Sales | Aerospace Segment
Segment Reporting Information
Sales	(14)	$ (67)
Less Inter-segment Sales | Test Systems Segment
Segment Reporting Information
Sales	(304)	(39)
Corporate Expenses and Other
Additions/Deductions from Segment Measure of Operating (Loss) Profit
Corporate Expenses and Other	5,672	$ 5,521
Total Assets	$ 22,685		$ 29,781

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Fair Value (Details)		3 Months Ended
	Oct. 04, 2019 USD ($)	Apr. 03, 2021 USD ($) reporting_unit	Mar. 28, 2020 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Number of reporting units impaired | reporting_unit		4
Right-of-use asset impairment		$ 0	$ 691,000
Aerospace Segment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Impairment loss		73,700,000
AeroSat
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Right-of-use asset impairment		700,000
Diagnosys
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash paid to acquire stock	$ 7,000,000.0
Fair value of contingent consideration	2,500,000	$ 2,200,000
Potential additional earn-out	$ 13,000,000.0
Achievement period	3 years
Earn-out achievement benchmark	$ 72,000,000.0

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Restructuring Charges - Narrative (Details) $ in Millions	3 Months Ended
	Apr. 03, 2021 USD ($)
Aerospace Segment
Restructuring Cost and Reserve [Line Items]
Restructuring, settlement and impairment provisions	$ 0.3

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Restructuring Charges - Beginning and Ending Liability for Restructuring Charges (Details) $ in Thousands	3 Months Ended
	Apr. 03, 2021 USD ($)
Restructuring Reserve [Roll Forward]
Beginning balance	$ 5,631
Restructuring Charges	0
Cash Paid	(981)
Ending balance	$ 4,650