10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q

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

For the quarterly period ended April 1, 2017

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)

NOT APPLICABLE

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

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

$.01 par value Common Stock, $.01 par value Class B Stock

(Title of Class)

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	ý	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 April 1, 2017, 28,997,779 shares of common stock were outstanding consisting of 21,620,225 shares of common stock ($.01 par value) and 7,377,554 shares of Class B common stock ($.01 par value).

TABLE OF CONTENTS

			PAGE
PART I	FINANCIAL INFORMATION
	Item 1	Financial Statements:
		•      Consolidated Condensed Balance Sheets as of April 1, 2017 and December 31, 2016	3
		•      Consolidated Condensed Statements of Operations for the Three Months Ended April 1, 2017 and April 2, 2016	4
		•      Consolidated Condensed Statements of Comprehensive Income for the Three Months Ended April 1, 2017 and April 2, 2016	5
		•      Consolidated Condensed Statements of Cash Flows for the Three Months Ended April 1, 2017 and April 2, 2016	6
		•     Notes to Consolidated Condensed Financial Statements	7
	Item 2	Management’s Discussion and Analysis of Financial Condition and Results of Operations	17
	Item 3	Quantitative and Qualitative Disclosures about Market Risk	23
	Item 4	Controls and Procedures	23
PART II	OTHER INFORMATION
	Item 1	Legal Proceedings	24
	Item 1a	Risk Factors	24
	Item 2	Unregistered Sales of Equity Securities and Use of Proceeds	25
	Item 3	Defaults Upon Senior Securities	25
	Item 4	Mine Safety Disclosures	25
	Item 5	Other Information	25
	Item 6	Exhibits	25
SIGNATURES			26

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Part I – Financial Information

Item 1. Financial Statements

ASTRONICS CORPORATION

Consolidated Condensed Balance Sheets

April 1, 2017 with Comparative Figures for December 31, 2016

(In thousands)

	April 1, 2017			December 31, 2016
	(Unaudited)
Current Assets:
Cash and Cash Equivalents	$	10,763		$	17,901
Accounts Receivable, Net of Allowance for Doubtful Accounts	112,781			109,415
Inventories	122,184			116,597
Prepaid Expenses and Other Current Assets	10,674			11,160
Total Current Assets	256,402			255,073
Property, Plant and Equipment, Net of Accumulated Depreciation	122,159			122,812
Other Assets	13,902			13,149
Intangible Assets, Net of Accumulated Amortization	95,529			98,103
Goodwill	115,294			115,207
Total Assets	$	603,286		$	604,344
Current Liabilities:
Current Maturities of Long-term Debt	$	2,582		$	2,636
Accounts Payable	29,506			25,070
Accrued Expenses and Other Current Liabilities	30,100			35,686
Customer Advance Payments and Deferred Revenue	20,937			23,168
Total Current Liabilities	83,125			86,560
Long-term Debt	138,914			145,484
Other Liabilities	35,147			34,851
Total Liabilities	257,186			266,895
Shareholders’ Equity:
Common Stock	297			297
Accumulated Other Comprehensive Loss	(14,968		)	(15,494		)
Other Shareholders’ Equity	360,771			352,646
Total Shareholders’ Equity	346,100			337,449
Total Liabilities and Shareholders’ Equity	$	603,286		$	604,344

See notes to consolidated condensed financial statements.

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ASTRONICS CORPORATION

Consolidated Condensed Statements of Operations

Three Months Ended April 1, 2017 With Comparative Figures for 2016

(Unaudited)

(In thousands, except per share data)

	Three Months Ended
	April 1, 2017		April 2, 2016
Sales	$	152,396	$	159,530
Cost of Products Sold	114,079		120,047
Gross Profit	38,317		39,483
Selling, General and Administrative Expenses	21,693		21,884
Income from Operations	16,624		17,599
Interest Expense, Net of Interest Income	1,133		1,087
Income Before Income Taxes	15,491		16,512
Provision for Income Taxes	3,904		5,027
Net Income	$	11,587	$	11,485
Earnings Per Share:
Basic	$	0.40	$	0.39
Diluted	$	0.38	$	0.38

See notes to consolidated condensed financial statements.

4

ASTRONICS CORPORATION

Consolidated Condensed Statements of Comprehensive Income

Three Months Ended April 1, 2017 With Comparative Figures for 2016

(Unaudited)

(In thousands)

	Three Months Ended
	April 1, 2017		April 2, 2016
Net Income	$	11,587	$	11,485
Other Comprehensive Income:
Foreign Currency Translation Adjustments	395		1,816
Retirement Liability Adjustment – Net of Tax	131		131
Other Comprehensive Income	526		1,947
Comprehensive Income	$	12,113	$	13,432

See notes to consolidated condensed financial statements.

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ASTRONICS CORPORATION

Consolidated Condensed Statements of Cash Flows

Three Months Ended April 1, 2017

With Comparative Figures for 2016

(Unaudited)

(In thousands)

	Three Months Ended
	April 1, 2017			April 2, 2016
Cash Flows From Operating Activities:
Net Income	$	11,587		$	11,485
Adjustments to Reconcile Net Income to Cash Provided By Operating Activities:
Depreciation and Amortization	6,298			6,546
Provisions for Non-Cash Losses on Inventory and Receivables	535			563
Stock Compensation Expense	656			597
Deferred Tax Benefit	(516		)	(468		)
Other	(291		)	119
Cash Flows from Changes in Operating Assets and Liabilities:
Accounts Receivable	(3,268		)	(10,384		)
Inventories	(5,957		)	(3,117		)
Accounts Payable	4,397			2,755
Accrued Expenses	(8,477		)	(8,522		)
Other Current Assets and Liabilities	(942		)	214
Customer Advanced Payments and Deferred Revenue	(2,072		)	(3,831		)
Income Taxes	4,038			4,245
Supplemental Retirement and Other Liabilities	382			341
Cash Provided By Operating Activities	6,370			543
Cash Flows From Investing Activities:
Capital Expenditures	(2,767		)	(2,450		)
Cash Used For Investing Activities	(2,767		)	(2,450		)
Cash Flows From Financing Activities:
Proceeds from Long-term Debt	—			10,000
Payments for Long-term Debt	(6,657		)	(7,604		)
Purchase of Outstanding Shares for Treasury	(4,413		)	(4,261		)
Debt Acquisition Costs	—			(164		)
Proceeds from Exercise of Stock Options	295			451
Income Tax Benefit from Exercise of Stock Options	—			529
Cash Used For Financing Activities	(10,775		)	(1,049		)
Effect of Exchange Rates on Cash	34			186
Decrease in Cash and Cash Equivalents	(7,138		)	(2,770		)
Cash and Cash Equivalents at Beginning of Period	17,901			18,561
Cash and Cash Equivalents at End of Period	$	10,763		$	15,791

See notes to consolidated condensed financial statements.

6

ASTRONICS CORPORATION

Notes to Consolidated Condensed Financial Statements

April 1, 2017

(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.

All 2016 share quantities and per share data reported have been restated to reflect the impact of the three-for-twenty Class B stock distribution to shareholders of record on October 11, 2016.

Operating Results

The results of operations for any interim period are not necessarily indicative of results for the full year. Operating results for the three months ended April 1, 2017 are not necessarily indicative of the results that may be expected for the year ending December 31, 2017.

The balance sheet at December 31, 2016 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 for complete financial statements.

For further information, refer to the financial statements and footnotes thereto included in Astronics Corporation’s 2016 annual report on Form 10-K.

Description of the Business

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

We have operations in the United States (“U.S.”), Canada and France. We design and build our products through our wholly owned subsidiaries Armstrong Aerospace, Inc. (“Armstrong”); Astronics Advanced Electronic Systems Corp. (“AES”); Astronics AeroSat Corporation (“AeroSat”); Ballard Technology, Inc. (“Ballard”); Astronics DME LLC (“DME”); Luminescent Systems, Inc. (“LSI”); Luminescent Systems Canada, Inc. (“LSI Canada”); Max-Viz, Inc. (“Max-Viz”); Peco, Inc. (“Peco”); PGA Electronic s.a. (“PGA”) and Astronics Test Systems, Inc. (“ATS”). On April 3, 2017, Astronics Custom Control Concepts Inc. ("CCC") acquired all of the assets and certain liabilities of Custom Control Concepts LLC.

Cost of Products Sold, Engineering and Development 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 $22.9 million and $23.3 million for the three months ended April 1, 2017 and April 2, 2016, 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 1, 2017 and April 2, 2016.

Foreign Currency Translation

The aggregate transaction gain or loss included in operations was insignificant for the three months ended April 1, 2017 and April 2, 2016.

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Accounting Pronouncements Adopted in 2017

On January 1, 2017, the Company adopted Accounting Standards Update (“ASU”) No. 2016-09, Improvements to Employee Share-Based Payment Accounting. Prospectively, beginning January 1, 2017, excess tax benefits/deficiencies are reflected as income tax benefit/expense in the statement of income, resulting in a $0.3 million tax benefit in the quarter ended April 1, 2017. The extent of excess tax benefits/deficiencies is subject to variation in the Company’s stock price and timing/extent of employee stock option exercises. Under previous accounting guidance, when a share-based payment award such as a stock option was granted to an employee, the fair value of the award was generally recognized over the vesting period. However, the related deduction from taxes payable was based on the award’s intrinsic value at the time of exercise, which could be either greater (creating an excess tax benefit) or less (creating a tax deficiency) than the compensation cost recognized in the financial statements. Excess tax benefits were recognized in additional paid-in capital (“APIC”) within equity, while deficiencies were first recorded to APIC to the extent previously recognized excess tax benefits exist, after which time deficiencies were recorded to income tax expense. The Company’s adoption of this ASU also resulted in associated excess tax benefits being classified as an operating activity in the same manner as other cash flows related to income taxes in the statement of cash flows prospectively beginning January 1, 2017. Based on the adoption methodology applied, the statement of cash flows classification of prior periods has not changed.  As permitted by the ASU, the Company has elected to account for forfeitures as they occur.  None of the other provisions in this amended guidance had a significant impact on the Company’s consolidated financial statements.

In January 2017, the FASB issued ASU No. 2017-04, Simplifying the Test for Goodwill Impairment. Under the new standard, goodwill impairment would be measured as the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying value of goodwill. This ASU eliminates existing guidance that requires an entity to determine goodwill impairment by calculating the implied fair value of goodwill by hypothetically assigning the fair value of a reporting unit to all of its assets and liabilities as if that reporting unit had been acquired in a business combination. This ASU is effective prospectively to annual and interim impairment tests beginning after December 15, 2019, with early adoption permitted. The adoption of ASU 2017-04 on January 1, 2017 had no impact on the financial statements as of or for the three months ended April 1, 2017, as there was no impairment analysis performed during the period.

2) Inventories

Inventories are as follows:

(In thousands)	April 1, 2017		December 31, 2016
Finished Goods	$	29,095	$	28,792
Work in Progress	27,723		20,790
Raw Material	65,366		67,015
	$	122,184	$	116,597

3) Property, Plant and Equipment

The following table summarizes Property, Plant and Equipment as follows:

(In thousands)	April 1, 2017		December 31, 2016
Land	$	11,123	$	11,112
Buildings and Improvements	79,318		79,191
Machinery and Equipment	95,653		93,683
Construction in Progress	8,964		8,182
	195,058		192,168
Less Accumulated Depreciation	72,899		69,356
	$	122,159	$	122,812

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4) Intangible Assets

The following table summarizes acquired intangible assets as follows:

		April 1, 2017				December 31, 2016
(In thousands)	Weighted Average Life	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Patents	4 Years	$	2,146	$	1,497	$	2,146	$	1,450
Non-compete Agreement	3 Years	2,500		1,104		2,500		979
Trade Names	7 Years	10,199		3,387		10,189		3,153
Completed and Unpatented Technology	6 Years	24,135		9,830		24,118		9,221
Backlog	-	11,224		11,224		11,224		11,224
Customer Relationships	11 Years	97,075		24,708		97,046		23,093
Total Intangible Assets	6 Years	$	147,279	$	51,750	$	147,223	$	49,120

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 1, 2017		April 2, 2016
Amortization Expense	$	2,618	$	2,808

Amortization expense for acquired intangible assets expected for 2017 and for each of the next five years is summarized as follows:

(In thousands)
2017	$	10,450
2018	10,133
2019	9,754
2020	9,198
2021	9,152
2022	8,756

5) Goodwill

The following table summarizes the changes in the carrying amount of goodwill for the three months ended April 1, 2017:

(In thousands)	December 31, 2016		Acquisition		Foreign Currency Translation		April 1, 2017
Aerospace	$	115,207	$	—	$	87	$	115,294
Test Systems	—		—		—		—
	$	115,207	$	—	$	87	$	115,294

6) Long-term Debt and Notes Payable

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

The Company's Credit Agreement consists of a $350 million revolving credit line with the option to increase the line by up to $150 million. On January 13, 2016, the Company amended the Agreement to add a new lender and extend the maturity date of the credit facility from September 26, 2019 to January 13, 2021. At April 1, 2017, there was $130.0 million outstanding on the

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revolving credit facility and there remains $218.9 million available, net of outstanding letters of credit. The credit facility allocates up to $20 million of the $350 million revolving credit line for the issuance of letters of credit, including certain existing letters of credit. At April 1, 2017, outstanding letters of credit totaled $1.1 million.

The maximum permitted leverage ratio of funded debt to Adjusted EBITDA (as defined in the Agreement) is 3.5 to 1, increasing to 4.0 to 1 for up to two fiscal quarters following the closing of an acquisition permitted under the Agreement. The Company will pay interest on the unpaid principal amount of the facility at a rate equal to one-, three- or six-month LIBOR plus between 137.5 basis points and 225 basis points based upon the Company’s leverage ratio. The Company will also pay a commitment fee to the lenders in an amount equal to between 17.5 basis points and 35 basis points on the undrawn portion of the credit facility, based upon the Company’s leverage ratio. The Company must also maintain a minimum interest coverage ratio (Adjusted EBITDA to interest expense) of 3.0 to 1 for the term of the Agreement. The Company’s interest coverage ratio was 28.6 to 1 at April 1, 2017. The Company’s leverage ratio was 1.34 to 1 at April 1, 2017.

In the event of voluntary or involuntary bankruptcy of the Company or any subsidiary, all unpaid principal and other amounts owing under the Agreement 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.

7) 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 12 to 60 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 1, 2017			April 2, 2016
Balance at Beginning of Period	$	4,675		$	5,741
Warranties Issued	467			661
Warranties Settled	(707		)	(885		)
Reassessed Warranty Exposure	(78		)	(395		)
Balance at End of Period	$	4,357		$	5,122

8) Income Taxes

The effective tax rates were approximately 25.2% and 30.4% for the three months ended April 1, 2017 and April 2, 2016, respectively. The first quarter 2017 tax rate was favorably impacted relative to the statutory rate by excess tax benefits associated with the exercise of stock options, decreases in foreign tax rates, and from the federal research and development tax credit.

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9) Shareholders’ Equity

The changes in shareholders’ equity for the three months ended April 1, 2017 are summarized as follows:

				Number of Shares
(Dollars and Shares in thousands)	Amount			Common Stock			Convertible Class B Stock
Shares Authorized				40,000			15,000
Share Par Value				$	0.01		$	0.01
COMMON STOCK
Beginning of Period	$	297		21,955			7,665
Conversion of Class B Shares to Common Shares	—			320			(320		)
Exercise of Stock Options	—			16			33
End of Period	$	297		22,291			7,378
ADDITIONAL PAID IN CAPITAL
Beginning of Period	$	64,752
Stock Compensation Expense	656
Exercise of Stock Options	295
End of Period	$	65,703
ACCUMULATED OTHER COMPREHENSIVE LOSS
Beginning of Period	$	(15,494	)
Foreign Currency Translation Adjustment	395
Retirement Liability Adjustment – Net of Tax	131
End of Period	$	(14,968	)
RETAINED EARNINGS
Beginning of Period	$	305,512
Net Income	11,587
End of Period	$	317,099
TREASURY STOCK
Beginning of Period	$	(17,618	)	(523		)
Purchase	(4,413		)	(148		)
End of Period	$	(22,031	)	(671		)
TOTAL SHAREHOLDERS’ EQUITY
Beginning of Period	$	337,449
End of Period	$	346,100		21,620			7,378

On February 24, 2016, the Company’s Board of Directors authorized the repurchase of up to $50 million of common stock (the “Buyback Program”). The Buyback Program 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. The Buyback Program may be suspended or discontinued at any time. Under this program, the Company has repurchased approximately 671,000 shares for $22.0 million.

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10) Earnings Per Share

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

	Three Months Ended
(In thousands)	April 1, 2017	April 2, 2016
Weighted Average Shares - Basic	29,102	29,395
Net Effect of Dilutive Stock Options	1,080	964
Weighted Average Shares - Diluted	30,182	30,359

The 2016 information above has been adjusted to reflect the impact of the three-for-twenty Class B stock distribution to shareholders of record on October 11, 2016.

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 at April 1, 2017 was approximately 474,000 shares.

11) Accumulated Other Comprehensive Loss and Other Comprehensive Loss

The components of accumulated other comprehensive loss are as follows:

(In thousands)	April 1, 2017			December 31, 2016
Foreign Currency Translation Adjustments	$	(8,202	)	$	(8,597	)
Retirement Liability Adjustment – Before Tax	(10,409		)	(10,611		)
Tax Benefit	3,643			3,714
Retirement Liability Adjustment – After Tax	(6,766		)	(6,897		)
Accumulated Other Comprehensive Loss	$	(14,968	)	$	(15,494	)

The components of other comprehensive income are as follows:

	Three Months Ended
(In thousands)	April 1, 2017			April 2, 2016
Foreign Currency Translation Adjustments	$	395		$	1,816
Retirement Liability Adjustments:
Reclassifications to General and Administrative Expense:
Amortization of Prior Service Cost	101			110
Amortization of Net Actuarial Losses	101			91
Tax Benefit	(71		)	(70		)
Retirement Liability Adjustment	131			131
Other Comprehensive Income	$	526		$	1,947

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12) 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 1, 2017		April 2, 2016
Service Cost	$	46	$	44
Interest Cost	224		225
Amortization of Prior Service Cost	97		104
Amortization of Net Actuarial Losses	93		86
Net Periodic Cost	$	460	$	459

Participants in the SERP are entitled to paid medical, dental and long-term care insurance benefits upon retirement under the plan. The following table sets forth information regarding the net periodic cost recognized for those benefits:

	Three Months Ended
(In thousands)	April 1, 2017		April 2, 2016
Service Cost	$	2	$	1
Interest Cost	10		11
Amortization of Prior Service Cost	4		6
Amortization of Net Actuarial Losses	8		5
Net Periodic Cost	$	24	$	23

13) Sales to Major Customers

The Company has a significant concentration of business with two major customers, each in excess of 10% of consolidated sales. The loss of either of these customers would significantly, negatively impact our sales and earnings.

Sales to these two customers represented 24% and 18% of consolidated sales for the three months April 1, 2017. Sales to these customers were in the Aerospace segment. Accounts receivable from these customers at April 1, 2017 was approximately $39.8 million. Sales to these two customers represented 22% and 15% of consolidated sales for the three months ended April 2, 2016.

14) Legal Proceedings

The Company is subject to various legal proceedings, claims, and litigation arising in the ordinary course of business. While the outcome of these matters is currently not determinable, we do not expect these matters will have a material adverse effect on our business, financial position, results of operations, or cash flows. However, the results of these matters cannot be predicted with certainty. Should the Company fail to prevail in any legal matter or should several legal matters be resolved against the Company in the same reporting period, then the financial results of that particular reporting period could be materially adversely affected.

On December 29, 2010, Lufthansa Technik AG (“Lufthansa”) filed a Statement of Claim in the Regional State Court of Mannheim, Germany. Lufthansa’s claim asserts that our subsidiary, AES sold, marketed and brought into use in Germany a power supply system that infringes upon a German patent held by Lufthansa. The relief sought by Lufthansa includes requiring AES to stop selling and marketing the allegedly infringing power supply system, a recall of allegedly infringing products sold to commercial customers since November 26, 2003 and compensation for damages. The claim does not specify an estimate of damages and a damages claim will be made by Lufthansa only if it receives a favorable ruling on the determination of infringement.

On February 6, 2015, the Regional State Court of Mannheim, Germany rendered its decision that the patent was infringed. The judgment does not require AES to recall products that are already installed in aircraft or have been sold to other end users.  On July 15, 2015, Lufthansa advised AES of their intention to enforce the accounting provisions of the decision, which required AES to provide certain financial information regarding sales of the infringing product to enable Lufthansa to make an estimate

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of requested damages. Additionally, if Lufthansa provides the required bank guarantee specified in the decision, the Company may be required to offer a recall of products that are in the distribution channels in Germany. No such bank guarantee has been issued to date. As of April 1, 2017, there are no products in the distribution channels in Germany.

The Company appealed to the Higher Regional Court of Karlsruhe.  On November 15, 2016, the Court issued its ruling and upheld the lower court’s decision.  The Company has submitted a petition to grant AES leave for appeal to the Federal Supreme Court. The Company believes it has valid defenses to refute the decision.  Should the Federal Supreme Court decide to hear the case, the appeal process is estimated to extend up to two years. We estimate AES’s potential exposure related to this matter to be approximately $1 million to $3 million. As loss exposure is not probable at this time, the Company has not recorded any liability with respect to this litigation as of April 1, 2017.

On November 26, 2014, Lufthansa filed a complaint in the United States District for the Western District of Washington. Lufthansa’s complaint in this action alleges that AES manufactures, uses, sells and offers for sale a power supply system that infringes upon a U.S. patent held by Lufthansa. The patent at issue in the U.S. action is based on technology similar to that involved in the German action. On April 25, 2016, the Court issued its ruling on claim construction, holding that the sole independent claim in the patent is indefinite, rendering all claims in the patent indefinite. Based on this ruling, AES filed a motion for summary judgment on the grounds that the Court’s ruling that the patent is indefinite renders the patent invalid and unenforceable. On July 20, 2016, the U.S. District Court granted the motion for summary judgment and issued an order dismissing all claims against AES with prejudice. Lufthansa has filed an appeal with the United States Court of Appeals for the Federal Circuit. The Company believes that it has valid defenses to Lufthansa’s claims and will vigorously contest the appeal. As loss exposure is neither probable nor estimable at this time, the Companyhas not recorded any liability with respect to this litigation as of April 1, 2017.

15) Segment Information

Below are the sales and operating profit by segment for the three months ended April 1, 2017 and April 2, 2016 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
(Dollars in thousands)	April 1, 2017			April 2, 2016
Sales
Aerospace	$	136,827		$	138,649
Less Intersegment Sales	—			(340		)
Total Aerospace Sales	136,827			138,309
Total Test Systems Sales	15,569			21,221
Total Consolidated Sales	$	152,396		$	159,530
Operating Profit and Margins
Aerospace	$	19,754		$	18,691
	14.4		%	13.5		%
Test Systems	318			2,210
	2.0		%	10.4		%
Total Operating Profit	20,072			20,901
	13.2		%	13.1		%
Deductions from Operating Profit
Interest Expense, Net of Interest Income	1,133			1,087
Corporate Expenses and Other	3,448			3,302
Income Before Income Taxes	$	15,491		$	16,512

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Total Assets:

(In thousands)	April 1, 2017		December 31, 2016
Aerospace	$	511,105	$	500,892
Test Systems	74,138		76,575
Corporate	18,043		26,877
Total Assets	$	603,286	$	604,344

16) 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. The financial liabilities carried at fair value measured on a recurring basis consisted of contingent consideration related to a prior acquisition, valued at zero at December 31, 2016, determined using Level 3 inputs. This arrangement has expired and as of April 1, 2017 there are no financial liabilities carried at fair value measured on a recurring basis. There were no financial assets carried at fair value measured on a recurring basis at December 31, 2016 or April 1, 2017.

On a Non-recurring Basis:

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 Company utilizes a discounted cash flow analysis to estimate the fair value of reporting units utilizing unobservable inputs. The fair value measurement of the reporting unit under the step-one and step-two analysis of the quantitative goodwill impairment test are classified as Level 3 inputs.

Intangible assets that are amortized 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. For the Company’s indefinite-lived intangible asset, the impairment test consists of comparing the fair value, determined using the relief from royalty method, with its carrying amount. An impairment loss would be recognized for the carrying amount in excess of its fair value.

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. As of April 1, 2017, the Company concluded that no indicators of impairment relating to intangible assets or goodwill existed and an interim test was not performed.

17) Recent Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2014-9, Revenue from Contracts with Customers. This new standard is effective for reporting periods beginning after December 15, 2017, pursuant to the issuance of ASU 2015-14, Revenue from Contracts with Customers: Deferral of Effective Date issued in August 2015. The comprehensive new standard will supersede existing revenue recognition guidance and require revenue to be recognized when promised goods or services are transferred to customers in amounts that reflect the consideration to which the company expects to be entitled in exchange for those goods or services. Adoption of the new rules could affect the timing of revenue recognition for certain

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transactions. The guidance permits two implementation approaches, one requiring retrospective application of the new standard with restatement of prior years and one requiring prospective application of the new standard with disclosure of results under old standards. The Company will adopt the new standard on January 1, 2018, using the modified retrospective transition method.

The adoption of this amendment may require us to accelerate the recognition of revenue as compared to current standards, for certain customers, in cases where we produce products unique to those customers; and for which we would have an enforceable right of payment for production completed to date. The Company has identified its revenue streams, reviewed the initial impacts of adopting the new standard on those revenue streams, and appointed a project management leader. The Company continues to evaluate the quantitative and qualitative impacts of the standard.

In February 2016, the FASB issued ASU No. 2016 - 02, Leases. The new standard is effective for reporting periods beginning after December 15, 2018. Early adoption is permitted. The standard will require lessees to report most leases as assets and liabilities on the balance sheet, while lessor accounting will remain substantially unchanged. The standard requires a modified retrospective transition approach for existing leases, whereby the new rules will be applied to the earliest year presented.  The adoption of the standard is not expected to have a material effect on the Company’s financial position, results of operations or cash flows.

In August 2016, the FASB issued ASU No. 2016-15, Classification of Certain Cash Receipts and Cash Payments, which is intended to reduce diversity in practice in how certain cash receipts and payments are presented and classified in the statement of cash flows. The standard provides guidance in a number of situations including, among others, settlement of zero-coupon bonds, contingent consideration payments made after a business combination, proceeds from the settlement of insurance claims, and distributions received from equity method investees. The ASU also provides guidance for classifying cash receipts and payments that have aspects of more than one class of cash flows. This ASU is effective for fiscal years beginning after December 15, 2017, with early adoption permitted. The standard requires application using a retrospective transition method. This ASU is not expected to have a material impact on the Company’s consolidated results of operations and financial condition.

In January 2017, the FASB issued ASU No. 2017-01, Clarifying the Definition of a Business, which narrows the existing definition of a business and provides a framework for evaluating whether a transaction should be accounted for as an acquisition (or disposal) of assets or a business. The ASU requires an entity to evaluate if substantially all of the fair value of the gross assets acquired is concentrated in a single identifiable asset or a group of similar identifiable assets; if so, the set of transferred assets and activities (collectively, the set) is not a business. To be considered a business, the set would need to include an input and a substantive process that together significantly contribute to the ability to create outputs. The standard also narrows the definition of outputs. The definition of a business affects areas of accounting such as acquisitions, disposals and goodwill. Under the new guidance, fewer acquired sets are expected to be considered businesses. This ASU is effective for fiscal years beginning after December 15, 2017 on a prospective basis with early adoption permitted. The Company would apply this guidance to applicable transactions after the adoption date.

In March 2017, the FASB issued ASU 2017-07, Compensation-Retirement Benefits(Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, which requires employers to include only the service cost component of net periodic pension cost and net periodic postretirement benefit cost in operating expenses. The other components of net benefit cost, including amortization of prior service cost/credit and net actuarial gains/losses, and settlement and curtailment effects, are to be included in non-operating expenses. The ASU also stipulates that only the service cost component of net benefit cost is eligible for capitalization. The effective date for adoption of this guidance begins on January 1, 2018, with early adoption permitted. The Company is currently evaluating the effect that this standard will have on the consolidated financial statements.

18) Subsequent Events

Custom Control Concepts LLC

On April 3, 2017, Astronics Custom Control Concepts Inc., a wholly owned subsidiary of the Company acquired substantially all the assets and certain liabilities of Custom Control Concepts LLC (“CCC”), located in Kent, Washington. CCC is a provider of cabin management and in-flight entertainment systems for a range of aircraft. The total consideration for the transaction was approximately $11 million in cash. All of the goodwill and purchased intangible assets are expected to be deductible for tax purposes over 15 years. The purchase price allocation for this acquisition has not been finalized. CCC will be included in our Aerospace segment.

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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, 2016.)

OVERVIEW

Astronics Corporation (“Astronics” or the “Company”) is a leading supplier of products to the global aerospace, defense, electronics and semiconductor industries. Our products and services include advanced, high-performance electrical power generation, distribution and motion systems, lighting & 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 & safety systems, electrical power generation, distribution and motion systems, aircraft structures, avionics products, systems certification and other products. Our 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 and branches of the U.S. Department of Defense as well as the Federal Aviation Administration and airport operators. Our Test Systems segment designs, develops, manufactures and maintains automated test systems that support the semiconductor, aerospace, communications and weapons test systems 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 the aerospace and defense, semiconductor and other markets where our technology can be beneficial.

Important factors affecting our growth and profitability are 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 Systems business is dependent on developing and procuring new and follow-on business in commercial electronics and semiconductor markets as well as with the military. The nature of our Test Systems business is such that it pursues large 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.

ACQUISITIONS

On April 3, 2017, Astronics Custom Control Concepts Inc., a wholly owned subsidiary of the Company acquired substantially all the assets and certain liabilities of Custom Control Concepts LLC (“CCC”), located in Kent, Washington. CCC is a provider of cabin management and in-flight entertainment (IFE) systems for a range of aircraft. The total consideration for the transaction was approximately $11 million in cash. CCC will be included in our Aerospace segment.

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CONSOLIDATED RESULTS OF OPERATIONS AND OUTLOOK

	Three Months Ended
(Dollars in thousands)	April 1, 2017			April 2, 2016
Sales	$	152,396		$	159,530
Gross Profit (sales less cost of products sold)	$	38,317		$	39,483
Gross Margin	25.1		%	24.7		%
Selling, General and Administrative Expenses	$	21,693		$	21,884
SG&A Expenses as a Percentage of Sales	14.2		%	13.7		%
Interest Expense, Net of Interest Income	$	1,133		$	1,087
Effective Tax Rate	25.2		%	30.4		%
Net Income	$	11,587		$	11,485

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 $7.1 million from the same period last year. Aerospace segment sales of $136.8 million were down $1.5 million and Test Systems segment sales of $15.6 million were down $5.7 million.

Consolidated cost of products sold in the first quarter of 2017 decreased $5.9 million to $114.1 million compared with $120.0 million in the first quarter of 2016. The decrease was the result of lower sales volume coupled with improved operational efficiencies and product mix. Engineering and Development (“E&D”) costs were $22.9 million in the quarter, down slightly from $23.3 million of E&D costs in last year’s first quarter. As a percent of sales, E&D was 15.0% and 14.6% in the first quarters of 2017 and 2016, respectively.

Selling, general and administrative (“SG&A”) expenses were $21.7 million, or 14.2% of sales, in the first quarter of 2017 compared with $21.9 million, or 13.7% of sales, in the same period last year.

The effective tax rate for the quarter was 25.2%, compared with 30.4% in the first quarter of 2016. The first quarter 2017 tax rate was favorably impacted by excess tax benefits associated with the exercise of stock options. With the implementation of Accounting Standards Update No. 2016-09 on January 1, 2017, excess tax benefits are now recognized as income tax benefit upon exercise. The effective tax rate for the first quarter of 2017 also benefited from decreases in foreign tax rates.

Net income for the quarter was $11.6 million, compared to $11.5 million in the first quarter of the prior year. Diluted earnings per share was $0.38 cents in the first quarters of 2017 and 2016.

CONSOLIDATED OUTLOOK

Consolidated sales in 2017 are forecasted to be in the range of $635 million to $690 million, which represents a decline from the high end of the previous range. Approximately $545 million to $580 million of revenue is expected from the Aerospace segment and $90 million to $110 million from the Test Systems segment.

Consolidated backlog at April 1, 2017 was $252.7 million, of which approximately $218.7 million is expected to ship in 2017.

Assuming no change in the federal statutory rate, the effective tax rate for 2017 is expected to be in the range of 28% to 31%.

Capital equipment spending in 2017 is expected to be in the range of $21 million to $25 million.

E&D costs are expected to be in the range of $93 million to $95 million excluding the engineering costs from the acquired Custom Control Concepts business.

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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 15 of the Notes to Consolidated Condensed Financial Statements included in this report.

AEROSPACE SEGMENT

	Three Months Ended
(In thousands)	April 1, 2017			April 2, 2016
Sales
Aerospace	$	136,827		$	138,649
Less Intersegment Sales	—			(340		)
Total Aerospace Sales	$	136,827		$	138,309
Operating Profit	$	19,754		$	18,691
Operating Margin	14.4		%	13.5		%
Aerospace Sales by Market
(In thousands)
Commercial Transport	$	109,723		$	113,396
Military	15,146			12,280
Business Jet	7,536			6,525
Other	4,422			6,108
	$	136,827		$	138,309
Aerospace Sales by Product Line
(In thousands)
Electrical Power & Motion	$	72,444		$	75,392
Lighting & Safety	42,670			40,566
Avionics	9,136			7,474
Systems Certification	2,159			4,606
Structures	5,996			4,163
Other	4,422			6,108
	$	136,827		$	138,309

(In thousands)	April 1, 2017		December 31, 2016
Total Assets	$	511,105	$	500,892
Backlog	$	205,155	$	219,146

AEROSPACE FIRST QUARTER RESULTS

Aerospace segment sales decreased by $1.5 million, or 1.1%, when compared with the prior year’s first quarter to $136.8 million.

Electrical Power & Motion sales decreased $2.9 million, or 3.9%, largely driven by lower sales of in-seat and cabin power products. Systems Certification sales decreased by $2.4 million on lower project activity. These decreases were partially offset by a $2.1 million increase in sales of Lighting & Safety products and a $1.7 million increase in Avionics products sales.

Aerospace operating profit for the first quarter of 2017 was $19.8 million, or 14.4% of sales, compared with $18.7 million, or 13.5% of sales, in the same period last year. Aerospace E&D costs remained consistent when compared with the same period last year at $20.3 million.

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Aerospace orders in the first quarter of 2017 were $122.8 million. Backlog was $205.2 million at the end of the first quarter of 2017.

AEROSPACE OUTLOOK

We expect 2017 sales for our Aerospace segment to be in the range of $545 million to $580 million. The Aerospace segment’s backlog at the end of the first quarter of 2017 was $205.2 million with approximately $179.7 million expected to be shipped over the remaining part of 2017 and $188.5 million is expected to ship over the next 12 months.

TEST SYSTEMS SEGMENT

	Three Months Ended
(In thousands)	April 1, 2017			April 2, 2016
Sales	$	15,569		$	21,221
Operating profit (loss)	$	318		$	2,210
Operating Margin	2.0		%	10.4		%
Test Systems Sales by Market
(In thousands)
Semiconductor	$	4,631		$	7,137
Aerospace & Defense	10,938			14,084
	$	15,569		$	21,221

(In thousands)	April 1, 2017		December 31, 2016
Total Assets	$	74,138	$	76,575
Backlog	$	47,554	$	38,887

TEST SYSTEMS FIRST QUARTER RESULTS

Sales in the first quarter of 2017decreased approximately $5.7 million to $15.6 million compared with the same period in 2016, a decrease of 26.6%. Sales to the Semiconductor market decreased$2.5 million and sales to the Aerospace and Defense market decreased $3.2 million compared with the same period in 2016.

Operating profit was $0.3 million, or 2.0% of sales, compared with $2.2 million, or 10.4% of sales, in last year’s first quarter. The decrease in operating profit was the result of lower volumes. E&D costs were $2.5 million, down from $3.0 million in the first quarter of 2016.

Orders for the Test Systems segment in the quarter were $24.2 million, for a book-to-bill ratio of 1.56 for the quarter. Backlog was $47.6 million at the end of the first quarter of 2017.

TEST SYSTEMS OUTLOOK

We expect sales for the Test Systems segment for 2017 to be in the range of $90 million to $110 million. The Test Systems segment’s backlog at the end of the first quarter of 2017 was $47.6 million with approximately $39.1 million expected to be shipped over the remaining part of 2017 and approximately $42.6 million scheduled to ship over the next 12 months.

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LIQUIDITY AND CAPITAL RESOURCES

Operating Activities:

Cash provided by operating activities totaled $6.4 million for the first three months of 2017, as compared with $0.5 million during the same period in 2016. Cash flow from operating activities increased compared with the same period of 2016 primarily due to the impact of lower increases in net operating assets for the first three months of 2017 when compared with the first three months of 2016.

Investing Activities:

Cash used for investing activities, comprised entirely of capital expenditures, was $2.8 million for the first three months of 2017 compared with $2.5 million used in the same period of 2016. The Company expects capital spending in 2017 to be in the range of $21 million to $25 million.

Financing Activities:

The primary financing activities in 2017 relate to payments on our senior credit facility to fund operations, and purchases of treasury stock as part of the buyback program announced on February 24, 2016, under which the Board of Directors authorized the repurchase of up to $50 million of common stock.

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

The Company's Credit Agreement consists of a $350 million revolving credit line with the option to increase the line by up to $150 million. On January 13, 2016, the Company amended the Agreement to add a new lender and extend the maturity date of the credit facility from September 26, 2019 to January 13, 2021. At April 1, 2017 there was $130.0 million outstanding on the revolving credit facility and there remains $218.9 million available, net of outstanding letters of credit. The credit facility allocates up to $20 million of the $350 million revolving credit line for the issuance of letters of credit, including certain existing letters of credit. At April 1, 2017, outstanding letters of credit totaled $1.1 million.

The maximum permitted leverage ratio of funded debt to Adjusted EBITDA (as defined in the Agreement) is 3.5 to 1, increasing to 4.0 to 1 for up to two fiscal quarters following the closing of an acquisition permitted under the Agreement. The Company will pay interest on the unpaid principal amount of the facility at a rate equal to one-, three- or six-month LIBOR plus between 137.5 basis points and 225 basis points based upon the Company’s leverage ratio. The Company will also pay a commitment fee to the lenders in an amount equal to between 17.5 basis points and 35 basis points on the undrawn portion of the credit facility, based upon the Company’s leverage ratio. The Company must also maintain a minimum interest coverage ratio (Adjusted EBITDA to interest expense) of 3.0 to 1 for the term of the Agreement. The Company’s interest coverage ratio was 28.6 to 1 at April 1, 2017. The Company’s leverage ratio was 1.34 to 1 at April 1, 2017.

In the event of voluntary or involuntary bankruptcy of the Company or any subsidiary, all unpaid principal and other amounts owing under the Agreement 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.

BACKLOG

The Company’s backlog at April 1, 2017 was $252.7 million compared with $258.0 million at December 31, 2016 and $276.8 million at April 2, 2016.

CONTRACTUAL OBLIGATIONS AND COMMITMENTS

The Company's contractual obligations and commercial commitments have not changed materially from those disclosed in the Company's Form 10-K for the year ended December 31, 2016.

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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 to the Euro and the Canadian dollar. The Company believes that the impact of changes in foreign currency exchange rates in 2017 have not been significant.

CRITICAL ACCOUNTING POLICIES

Refer to the Company’s annual report on Form 10-K for the year ended December 31, 2016 for a complete discussion of the Company’s critical accounting policies.

RECENT ACCOUNTING PRONOUNCEMENTS

In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-9, Revenue from Contracts with Customers. This new standard is effective for reporting periods beginning after December 15, 2017, pursuant to the issuance of ASU 2015-14, Revenue from Contracts with Customers: Deferral of Effective Date issued in August 2015. The comprehensive new standard will supersede existing revenue recognition guidance and require revenue to be recognized when promised goods or services are transferred to customers in amounts that reflect the consideration to which the company expects to be entitled in exchange for those goods or services. Adoption of the new rules could affect the timing of revenue recognition for certain transactions. The guidance permits two implementation approaches, one requiring retrospective application of the new standard with restatement of prior years and one requiring prospective application of the new standard with disclosure of results under old standards. The Company will adopt the new standard on January 1, 2018, using the modified retrospective transition method.

The adoption of this amendment may require us to accelerate the recognition of revenue as compared to current standards, for certain customers, in cases where we produce products unique to those customers; and for which we would have an enforceable right of payment for production completed to date. The Company has identified its revenue streams, reviewed the initial impacts of adopting the new standard on those revenue streams, and appointed a project management leader. The Company continues to evaluate the quantitative and qualitative impacts of the standard.

In February 2016, the FASB issued ASU No. 2016 - 02, Leases. The new standard is effective for reporting periods beginning after December 15, 2018. Early adoption is permitted. The standard will require lessees to report most leases as assets and liabilities on the balance sheet, while lessor accounting will remain substantially unchanged. The standard requires a modified retrospective transition approach for existing leases, whereby the new rules will be applied to the earliest year presented.  The adoption of the standard is not expected to have a material effect on the Company’s financial position, results of operations or cash flows.

In August 2016, the FASB issued ASU No. 2016-15, Classification of Certain Cash Receipts and Cash Payments, which is intended to reduce diversity in practice in how certain cash receipts and payments are presented and classified in the statement of cash flows. The standard provides guidance in a number of situations including, among others, settlement of zero-coupon bonds, contingent consideration payments made after a business combination, proceeds from the settlement of insurance claims, and distributions received from equity method investees. The ASU also provides guidance for classifying cash receipts and payments that have aspects of more than one class of cash flows. This ASU is effective for fiscal years beginning after December 15, 2017, with early adoption permitted. The standard requires application using a retrospective transition method. This ASU is not expected to have a material impact on the Company’s consolidated results of operations and financial condition.

In January 2017, the FASB issued ASU No. 2017-01, Clarifying the Definition of a Business, which narrows the existing definition of a business and provides a framework for evaluating whether a transaction should be accounted for as an acquisition (or disposal) of assets or a business. The ASU requires an entity to evaluate if substantially all of the fair value of the gross assets acquired is concentrated in a single identifiable asset or a group of similar identifiable assets; if so, the set of transferred assets and activities (collectively, the set) is not a business. To be considered a business, the set would need to include an input and a substantive process that together significantly contribute to the ability to create outputs. The standard also narrows the definition of outputs. The definition of a business affects areas of accounting such as acquisitions, disposals and goodwill. Under the new guidance, fewer acquired sets are expected to be considered businesses. This ASU is effective for


fiscal years beginning after December 15, 2017 on a prospective basis with early adoption permitted. The Company would apply this guidance to applicable transactions after the adoption date.

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In March 2017, the FASB issued ASU 2017-07, Compensation-Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, which requires employers to include only the service cost component of net periodic pension cost and net periodic postretirement benefit cost in operating expenses. The other components of net benefit cost, including amortization of prior service cost/credit and net actuarial gains/losses, and settlement and curtailment effects, are to be included in non-operating expenses. The ASU also stipulates that only the service cost component of net benefit cost is eligible for capitalization. The effective date for adoption of this guidance begins on January 1, 2018, with early adoption permitted. The Company is currently evaluating the effect that this standard will have on the consolidated financial statements.

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.

Item 4. Controls and Procedures

a) 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 1, 2017. 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 1, 2017.

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.

23

PART II - OTHER INFORMATION

Item 1. Legal Proceedings

The Company is subject to various legal proceedings, claims, and litigation arising in the ordinary course of business. While the outcome of these matters is currently not determinable, we do not expect these matters will have a material adverse effect on our business, financial position, results of operations, or cash flows. However, the results of these matters cannot be predicted with certainty. Should the Company fail to prevail in any legal matter or should several legal matters be resolved against the Company in the same reporting period, then the financial results of that particular reporting period could be materially adversely affected.

On December 29, 2010, Lufthansa Technik AG (“Lufthansa”) filed a Statement of Claim in the Regional State Court of Mannheim, Germany. Lufthansa’s claim asserts that our subsidiary, AES sold, marketed and brought into use in Germany a power supply system that infringes upon a German patent held by Lufthansa. The relief sought by Lufthansa includes requiring AES to stop selling and marketing the allegedly infringing power supply system, a recall of allegedly infringing products sold to commercial customers since November 26, 2003 and compensation for damages. The claim does not specify an estimate of damages and a damages claim will be made by Lufthansa only if it receives a favorable ruling on the determination of infringement.

On February 6, 2015, the Regional State Court of Mannheim, Germany rendered its decision that the patent was infringed. The judgment does not require AES to recall products that are already installed in aircraft or have been sold to other end users.  On July 15, 2015, Lufthansa advised AES of their intention to enforce the accounting provisions of the decision, which required AES to provide certain financial information regarding sales of the infringing product to enable Lufthansa to make an estimate of requested damages. Additionally, if Lufthansa provides the required bank guarantee specified in the decision, the Company may be required to offer a recall of products that are in the distribution channels in Germany. No such bank guarantee has been issued to date. As of April 1, 2017 there are no products in the distribution channels in Germany.

The Company appealed to the Higher Regional Court of Karlsruhe.  On November 15, 2016, the Court issued its ruling and upheld the lower court’s decision.  The Company has submitted a petition to grant AES leave for appeal to the Federal Supreme Court. The Company believes it has valid defenses to refute the decision.  Should the Federal Supreme Court decide to hear the case, the appeal process is estimated to extend up to two years. We estimate AES’s potential exposure related to this matter to be approximately $1 million to $3 million. As loss exposure is not probable at this time, the Company has not recorded any liability with respect to this litigation as of April 1, 2017.

On November 26, 2014, Lufthansa filed a complaint in the United States District for the Western District of Washington. Lufthansa’s complaint in this action alleges that AES manufactures, uses, sells and offers for sale a power supply system that infringes upon a U.S. patent held by Lufthansa. The patent at issue in the U.S. action is based on technology similar to that involved in the German action. On April 25, 2016, the Court issued its ruling on claim construction, holding that the sole independent claim in the patent is indefinite, rendering all claims in the patent indefinite. Based on this ruling, AES filed a motion for summary judgment on the grounds that the Court’s ruling that the patent is indefinite renders the patent invalid and unenforceable. On July 20, 2016, the U.S. District Court granted the motion for summary judgment and issued an order dismissing all claims against AES with prejudice. Lufthansa has filed an appeal with the United States Court of Appeals for the Federal Circuit. The Company believes that it has valid defenses to Lufthansa’s claims and will vigorously contest the appeal. As loss exposure is neither probable nor estimable at this time, the Companyhas not recorded any liability with respect to this litigation as of April 1, 2017.

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

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, 2016, 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.

24

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 1, 2017.

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 29, 2017 - February 25, 2017 (2)	5,164	$34.06	—	$—
February 26, 2017 - March 31, 2017	148,069	$29.81	148,069	$27,969,000

(1) On February 24, 2016, the Company’s Board of Directors authorized the repurchase of up to $50 million of common stock.

(2) Shares transferred to us by employees in connection with the exercise of stock options.

Item 3. Defaults Upon Senior Securities

None.

Item 4. Mine Safety Disclosures

None.

Item 5. Other Information

None.

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.

25

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 5, 2017	By:	/s/ David C. Burney
			David C. Burney Executive Vice President and Chief Financial Officer (Principal Financial Officer)

26

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;

2. 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;

3. 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;

4. 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;

b. 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;

c. 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

d. 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

5. 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

b. 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: May 5, 2017

/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;

2. 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;

3. 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;

4. 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;

b. 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;

c. 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

d. 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

5. 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

b. 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: May 5, 2017

/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 1, 2017 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.

Dated: May 5, 2017	/s/ Peter J. Gundermann
	Peter J. Gundermann
	Title:	Chief Executive Officer
Dated: May 5, 2017	/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.

XML

Document and Entity Information	3 Months Ended
	Apr. 01, 2017 shares
Document Information
Entity Registrant Name	ASTRONICS CORP
Trading Symbol	ATRO
Entity Central Index Key	0000008063
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Apr. 01, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q1
Amendment Flag	false
Common Class Undefined
Document Information
Entity Common Stock, Shares Outstanding	21,620,225
Convertible Class B Stock
Document Information
Entity Common Stock, Shares Outstanding	7,377,554

XML

Consolidated Condensed Balance Sheets - USD ($) $ in Thousands	Apr. 01, 2017	Dec. 31, 2016
Current Assets:
Cash and Cash Equivalents	$ 10,763	$ 17,901
Accounts Receivable, Net of Allowance for Doubtful Accounts	112,781	109,415
Inventories	122,184	116,597
Prepaid Expenses and Other Current Assets	10,674	11,160
Total Current Assets	256,402	255,073
Property, Plant and Equipment, Net of Accumulated Depreciation	122,159	122,812
Other Assets	13,902	13,149
Intangible Assets, Net of Accumulated Amortization	95,529	98,103
Goodwill	115,294	115,207
Total Assets	603,286	604,344
Current Liabilities:
Current Maturities of Long-term Debt	2,582	2,636
Accounts Payable	29,506	25,070
Accrued Expenses and Other Current Liabilities	30,100	35,686
Customer Advance Payments and Deferred Revenue	20,937	23,168
Total Current Liabilities	83,125	86,560
Long-term Debt	138,914	145,484
Other Liabilities	35,147	34,851
Total Liabilities	257,186	266,895
Shareholders’ Equity:
Common Stock	297	297
Accumulated Other Comprehensive Loss	(14,968)	(15,494)
Other Shareholders’ Equity	360,771	352,646
Total Shareholders’ Equity	346,100	337,449
Total Liabilities and Shareholders’ Equity	$ 603,286	$ 604,344

XML

Consolidated Condensed Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Income Statement [Abstract]
Sales	$ 152,396	$ 159,530
Cost of Products Sold	114,079	120,047
Gross Profit	38,317	39,483
Selling, General and Administrative Expenses	21,693	21,884
Income from Operations	16,624	17,599
Interest Expense, Net of Interest Income	1,133	1,087
Income Before Income Taxes	15,491	16,512
Provision for Income Taxes	3,904	5,027
Net Income	$ 11,587	$ 11,485
Earnings Per Share:
Basic (in usd per share)	$ 0.40	$ 0.39
Diluted (in usd per share)	$ 0.38	$ 0.38

XML

Consolidated Condensed Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Statement of Comprehensive Income [Abstract]
Net Income	$ 11,587	$ 11,485
Other Comprehensive Income:
Foreign Currency Translation Adjustments	395	1,816
Retirement Liability Adjustment – Net of Tax	131	131
Other Comprehensive Income	526	1,947
Comprehensive Income	$ 12,113	$ 13,432

XML

Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Cash Flows From Operating Activities:
Net Income	$ 11,587	$ 11,485
Adjustments to Reconcile Net Income to Cash Provided By Operating Activities:
Depreciation and Amortization	6,298	6,546
Provisions for Non-Cash Losses on Inventory and Receivables	535	563
Stock Compensation Expense	656	597
Deferred Tax Benefit	(516)	(468)
Other	(291)	119
Cash Flows from Changes in Operating Assets and Liabilities:
Accounts Receivable	(3,268)	(10,384)
Inventories	(5,957)	(3,117)
Accounts Payable	4,397	2,755
Accrued Expenses	(8,477)	(8,522)
Other Current Assets and Liabilities	(942)	214
Customer Advanced Payments and Deferred Revenue	(2,072)	(3,831)
Income Taxes	4,038	4,245
Supplemental Retirement and Other Liabilities	382	341
Cash Provided By Operating Activities	6,370	543
Cash Flows From Investing Activities:
Capital Expenditures	(2,767)	(2,450)
Cash Used For Investing Activities	(2,767)	(2,450)
Cash Flows From Financing Activities:
Proceeds from Long-term Debt	0	10,000
Payments for Long-term Debt	(6,657)	(7,604)
Purchase of Outstanding Shares for Treasury	(4,413)	(4,261)
Debt Acquisition Costs	0	(164)
Proceeds from Exercise of Stock Options	295	451
Income Tax Benefit from Exercise of Stock Options	0	529
Cash Used For Financing Activities	(10,775)	(1,049)
Effect of Exchange Rates on Cash	34	186
Decrease in Cash and Cash Equivalents	(7,138)	(2,770)
Cash and Cash Equivalents at Beginning of Period	17,901	18,561
Cash and Cash Equivalents at End of Period	$ 10,763	$ 15,791

XML

Basis of Presentation

3 Months Ended

Apr. 01, 2017

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.

All 2016 share quantities and per share data reported have been restated to reflect the impact of the three-for-twenty Class B stock distribution to shareholders of record on October 11, 2016.

Operating Results

The results of operations for any interim period are not necessarily indicative of results for the full year. Operating results for the three months ended April 1, 2017 are not necessarily indicative of the results that may be expected for the year ending December 31, 2017.

The balance sheet at December 31, 2016 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 for complete financial statements.

For further information, refer to the financial statements and footnotes thereto included in Astronics Corporation’s 2016 annual report on Form 10-K.

Description of the Business

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

We have operations in the United States (“U.S.”), Canada and France. We design and build our products through our wholly owned subsidiaries Armstrong Aerospace, Inc. (“Armstrong”); Astronics Advanced Electronic Systems Corp. (“AES”); Astronics AeroSat Corporation (“AeroSat”); Ballard Technology, Inc. (“Ballard”); Astronics DME LLC (“DME”); Luminescent Systems, Inc. (“LSI”); Luminescent Systems Canada, Inc. (“LSI Canada”); Max-Viz, Inc. (“Max-Viz”); Peco, Inc. (“Peco”); PGA Electronic s.a. (“PGA”) and Astronics Test Systems, Inc. (“ATS”). On April 3, 2017, Astronics Custom Control Concepts Inc. ("CCC") acquired all of the assets and certain liabilities of Custom Control Concepts LLC.

Cost of Products Sold, Engineering and Development 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 $22.9 million and $23.3 million for the three months ended April 1, 2017 and April 2, 2016, 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 1, 2017 and April 2, 2016.

Foreign Currency Translation

The aggregate transaction gain or loss included in operations was insignificant for the three months ended April 1, 2017 and April 2, 2016.

Accounting Pronouncements Adopted in 2017

On January 1, 2017, the Company adopted Accounting Standards Update (“ASU”) No. 2016-09, Improvements to Employee Share-Based Payment Accounting. Prospectively, beginning January 1, 2017, excess tax benefits/deficiencies are reflected as income tax benefit/expense in the statement of income, resulting in a $0.3 million tax benefit in the quarter ended April 1, 2017. The extent of excess tax benefits/deficiencies is subject to variation in the Company’s stock price and timing/extent of employee stock option exercises. Under previous accounting guidance, when a share-based payment award such as a stock option was granted to an employee, the fair value of the award was generally recognized over the vesting period. However, the related deduction from taxes payable was based on the award’s intrinsic value at the time of exercise, which could be either greater (creating an excess tax benefit) or less (creating a tax deficiency) than the compensation cost recognized in the financial statements. Excess tax benefits were recognized in additional paid-in capital (“APIC”) within equity, while deficiencies were first recorded to APIC to the extent previously recognized excess tax benefits exist, after which time deficiencies were recorded to income tax expense. The Company’s adoption of this ASU also resulted in associated excess tax benefits being classified as an operating activity in the same manner as other cash flows related to income taxes in the statement of cash flows prospectively beginning January 1, 2017. Based on the adoption methodology applied, the statement of cash flows classification of prior periods has not changed.  As permitted by the ASU, the Company has elected to account for forfeitures as they occur.  None of the other provisions in this amended guidance had a significant impact on the Company’s consolidated financial statements.

In January 2017, the FASB issued ASU No. 2017-04, Simplifying the Test for Goodwill Impairment. Under the new standard, goodwill impairment would be measured as the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying value of goodwill. This ASU eliminates existing guidance that requires an entity to determine goodwill impairment by calculating the implied fair value of goodwill by hypothetically assigning the fair value of a reporting unit to all of its assets and liabilities as if that reporting unit had been acquired in a business combination. This ASU is effective prospectively to annual and interim impairment tests beginning after December 15, 2019, with early adoption permitted. The adoption of ASU 2017-04 on January 1, 2017 had no impact on the financial statements as of or for the three months ended April 1, 2017, as there was no impairment analysis performed during the period.

XML

Inventories

3 Months Ended

Apr. 01, 2017

Inventory Disclosure [Abstract]

Inventories

Inventories

Inventories are as follows:

(In thousands)	April 1, 2017		December 31, 2016
Finished Goods	$	29,095	$	28,792
Work in Progress	27,723		20,790
Raw Material	65,366		67,015
	$	122,184	$	116,597

XML

Property, Plant and Equipment

3 Months Ended

Apr. 01, 2017

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, Plant and Equipment

The following table summarizes Property, Plant and Equipment as follows:

(In thousands)	April 1, 2017		December 31, 2016
Land	$	11,123	$	11,112
Buildings and Improvements	79,318		79,191
Machinery and Equipment	95,653		93,683
Construction in Progress	8,964		8,182
	195,058		192,168
Less Accumulated Depreciation	72,899		69,356
	$	122,159	$	122,812

XML

Intangible Assets

3 Months Ended

Apr. 01, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

Intangible Assets

The following table summarizes acquired intangible assets as follows:

		April 1, 2017				December 31, 2016
(In thousands)	Weighted Average Life	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Patents	4 Years	$	2,146	$	1,497	$	2,146	$	1,450
Non-compete Agreement	3 Years	2,500		1,104		2,500		979
Trade Names	7 Years	10,199		3,387		10,189		3,153
Completed and Unpatented Technology	6 Years	24,135		9,830		24,118		9,221
Backlog	-	11,224		11,224		11,224		11,224
Customer Relationships	11 Years	97,075		24,708		97,046		23,093
Total Intangible Assets	6 Years	$	147,279	$	51,750	$	147,223	$	49,120

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 1, 2017		April 2, 2016
Amortization Expense	$	2,618	$	2,808

Amortization expense for acquired intangible assets expected for 2017 and for each of the next five years is summarized as follows:

(In thousands)
2017	$	10,450
2018	10,133
2019	9,754
2020	9,198
2021	9,152
2022	8,756

XML

Goodwill

3 Months Ended

Apr. 01, 2017

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 1, 2017:

(In thousands)	December 31, 2016		Acquisition		Foreign Currency Translation		April 1, 2017
Aerospace	$	115,207	$	—	$	87	$	115,294
Test Systems	—		—		—		—
	$	115,207	$	—	$	87	$	115,294

XML

Long-term Debt and Notes Payable

3 Months Ended

Apr. 01, 2017

Debt Disclosure [Abstract]

Long-term Debt and Notes Payable

Long-term Debt and Notes Payable

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

The Company's Credit Agreement consists of a $350 million revolving credit line with the option to increase the line by up to $150 million. On January 13, 2016, the Company amended the Agreement to add a new lender and extend the maturity date of the credit facility from September 26, 2019 to January 13, 2021. At April 1, 2017, there was $130.0 million outstanding on the revolving credit facility and there remains $218.9 million available, net of outstanding letters of credit. The credit facility allocates up to $20 million of the $350 million revolving credit line for the issuance of letters of credit, including certain existing letters of credit. At April 1, 2017, outstanding letters of credit totaled $1.1 million.

The maximum permitted leverage ratio of funded debt to Adjusted EBITDA (as defined in the Agreement) is 3.5 to 1, increasing to 4.0 to 1 for up to two fiscal quarters following the closing of an acquisition permitted under the Agreement. The Company will pay interest on the unpaid principal amount of the facility at a rate equal to one-, three- or six-month LIBOR plus between 137.5 basis points and 225 basis points based upon the Company’s leverage ratio. The Company will also pay a commitment fee to the lenders in an amount equal to between 17.5 basis points and 35 basis points on the undrawn portion of the credit facility, based upon the Company’s leverage ratio. The Company must also maintain a minimum interest coverage ratio (Adjusted EBITDA to interest expense) of 3.0 to 1 for the term of the Agreement. The Company’s interest coverage ratio was 28.6 to 1 at April 1, 2017. The Company’s leverage ratio was 1.34 to 1 at April 1, 2017.

In the event of voluntary or involuntary bankruptcy of the Company or any subsidiary, all unpaid principal and other amounts owing under the Agreement 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.

XML

Product Warranties

3 Months Ended

Apr. 01, 2017

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 12 to 60 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 1, 2017			April 2, 2016
Balance at Beginning of Period	$	4,675		$	5,741
Warranties Issued	467			661
Warranties Settled	(707		)	(885		)
Reassessed Warranty Exposure	(78		)	(395		)
Balance at End of Period	$	4,357		$	5,122

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Income Taxes

3 Months Ended

Apr. 01, 2017

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The effective tax rates were approximately 25.2% and 30.4% for the three months ended April 1, 2017 and April 2, 2016, respectively. The first quarter 2017 tax rate was favorably impacted relative to the statutory rate by excess tax benefits associated with the exercise of stock options, decreases in foreign tax rates, and from the federal research and development tax credit.

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Shareholders' Equity

3 Months Ended

Apr. 01, 2017

Equity [Abstract]

Shareholders' Equity

Shareholders’ Equity

The changes in shareholders’ equity for the three months ended April 1, 2017 are summarized as follows:

				Number of Shares
(Dollars and Shares in thousands)	Amount			Common Stock			Convertible Class B Stock
Shares Authorized				40,000			15,000
Share Par Value				$	0.01		$	0.01
COMMON STOCK
Beginning of Period	$	297		21,955			7,665
Conversion of Class B Shares to Common Shares	—			320			(320		)
Exercise of Stock Options	—			16			33
End of Period	$	297		22,291			7,378
ADDITIONAL PAID IN CAPITAL
Beginning of Period	$	64,752
Stock Compensation Expense	656
Exercise of Stock Options	295
End of Period	$	65,703
ACCUMULATED OTHER COMPREHENSIVE LOSS
Beginning of Period	$	(15,494	)
Foreign Currency Translation Adjustment	395
Retirement Liability Adjustment – Net of Tax	131
End of Period	$	(14,968	)
RETAINED EARNINGS
Beginning of Period	$	305,512
Net Income	11,587
End of Period	$	317,099
TREASURY STOCK
Beginning of Period	$	(17,618	)	(523		)
Purchase	(4,413		)	(148		)
End of Period	$	(22,031	)	(671		)
TOTAL SHAREHOLDERS’ EQUITY
Beginning of Period	$	337,449
End of Period	$	346,100		21,620			7,378

On February 24, 2016, the Company’s Board of Directors authorized the repurchase of up to $50 million of common stock (the “Buyback Program”). The Buyback Program 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. The Buyback Program may be suspended or discontinued at any time. Under this program, the Company has repurchased approximately 671,000 shares for $22.0 million.

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Earnings Per Share

3 Months Ended

Apr. 01, 2017

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 1, 2017	April 2, 2016
Weighted Average Shares - Basic	29,102	29,395
Net Effect of Dilutive Stock Options	1,080	964
Weighted Average Shares - Diluted	30,182	30,359

The 2016 information above has been adjusted to reflect the impact of the three-for-twenty Class B stock distribution to shareholders of record on October 11, 2016.

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 at April 1, 2017 was approximately 474,000 shares.

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Accumulated Other Comprehensive Loss and Other Comprehensive Loss

3 Months Ended

Apr. 01, 2017

Equity [Abstract]

Accumulated Other Comprehensive Loss and Other Comprehensive Loss

Accumulated Other Comprehensive Loss and Other Comprehensive Loss

The components of accumulated other comprehensive loss are as follows:

(In thousands)	April 1, 2017			December 31, 2016
Foreign Currency Translation Adjustments	$	(8,202	)	$	(8,597	)
Retirement Liability Adjustment – Before Tax	(10,409		)	(10,611		)
Tax Benefit	3,643			3,714
Retirement Liability Adjustment – After Tax	(6,766		)	(6,897		)
Accumulated Other Comprehensive Loss	$	(14,968	)	$	(15,494	)

The components of other comprehensive income are as follows:

	Three Months Ended
(In thousands)	April 1, 2017			April 2, 2016
Foreign Currency Translation Adjustments	$	395		$	1,816
Retirement Liability Adjustments:
Reclassifications to General and Administrative Expense:
Amortization of Prior Service Cost	101			110
Amortization of Net Actuarial Losses	101			91
Tax Benefit	(71		)	(70		)
Retirement Liability Adjustment	131			131
Other Comprehensive Income	$	526		$	1,947

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Supplemental Retirement Plan and Related Post Retirement Benefits

3 Months Ended

Apr. 01, 2017

Compensation and Retirement Disclosure [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 1, 2017		April 2, 2016
Service Cost	$	46	$	44
Interest Cost	224		225
Amortization of Prior Service Cost	97		104
Amortization of Net Actuarial Losses	93		86
Net Periodic Cost	$	460	$	459

Participants in the SERP are entitled to paid medical, dental and long-term care insurance benefits upon retirement under the plan. The following table sets forth information regarding the net periodic cost recognized for those benefits:

	Three Months Ended
(In thousands)	April 1, 2017		April 2, 2016
Service Cost	$	2	$	1
Interest Cost	10		11
Amortization of Prior Service Cost	4		6
Amortization of Net Actuarial Losses	8		5
Net Periodic Cost	$	24	$	23

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Sales to Major Customers

3 Months Ended

Apr. 01, 2017

Risks and Uncertainties [Abstract]

Sales to Major Customers

Sales to Major Customers

The Company has a significant concentration of business with two major customers, each in excess of 10% of consolidated sales. The loss of either of these customers would significantly, negatively impact our sales and earnings.

Sales to these two customers represented 24% and 18% of consolidated sales for the three months April 1, 2017. Sales to these customers were in the Aerospace segment. Accounts receivable from these customers at April 1, 2017 was approximately $39.8 million. Sales to these two customers represented 22% and 15% of consolidated sales for the three months ended April 2, 2016.

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Legal Proceedings

3 Months Ended

Apr. 01, 2017

Commitments and Contingencies Disclosure [Abstract]

Legal Proceedings

Legal Proceedings

The Company is subject to various legal proceedings, claims, and litigation arising in the ordinary course of business. While the outcome of these matters is currently not determinable, we do not expect these matters will have a material adverse effect on our business, financial position, results of operations, or cash flows. However, the results of these matters cannot be predicted with certainty. Should the Company fail to prevail in any legal matter or should several legal matters be resolved against the Company in the same reporting period, then the financial results of that particular reporting period could be materially adversely affected.

On December 29, 2010, Lufthansa Technik AG (“Lufthansa”) filed a Statement of Claim in the Regional State Court of Mannheim, Germany. Lufthansa’s claim asserts that our subsidiary, AES sold, marketed and brought into use in Germany a power supply system that infringes upon a German patent held by Lufthansa. The relief sought by Lufthansa includes requiring AES to stop selling and marketing the allegedly infringing power supply system, a recall of allegedly infringing products sold to commercial customers since November 26, 2003 and compensation for damages. The claim does not specify an estimate of damages and a damages claim will be made by Lufthansa only if it receives a favorable ruling on the determination of infringement.

On February 6, 2015, the Regional State Court of Mannheim, Germany rendered its decision that the patent was infringed. The judgment does not require AES to recall products that are already installed in aircraft or have been sold to other end users.  On July 15, 2015, Lufthansa advised AES of their intention to enforce the accounting provisions of the decision, which required AES to provide certain financial information regarding sales of the infringing product to enable Lufthansa to make an estimate of requested damages. Additionally, if Lufthansa provides the required bank guarantee specified in the decision, the Company may be required to offer a recall of products that are in the distribution channels in Germany. No such bank guarantee has been issued to date. As of April 1, 2017, there are no products in the distribution channels in Germany.

The Company appealed to the Higher Regional Court of Karlsruhe.  On November 15, 2016, the Court issued its ruling and upheld the lower court’s decision.  The Company has submitted a petition to grant AES leave for appeal to the Federal Supreme Court. The Company believes it has valid defenses to refute the decision.  Should the Federal Supreme Court decide to hear the case, the appeal process is estimated to extend up to two years. We estimate AES’s potential exposure related to this matter to be approximately $1 million to $3 million. As loss exposure is not probable at this time, the Company has not recorded any liability with respect to this litigation as of April 1, 2017.

On November 26, 2014, Lufthansa filed a complaint in the United States District for the Western District of Washington. Lufthansa’s complaint in this action alleges that AES manufactures, uses, sells and offers for sale a power supply system that infringes upon a U.S. patent held by Lufthansa. The patent at issue in the U.S. action is based on technology similar to that involved in the German action. On April 25, 2016, the Court issued its ruling on claim construction, holding that the sole independent claim in the patent is indefinite, rendering all claims in the patent indefinite. Based on this ruling, AES filed a motion for summary judgment on the grounds that the Court’s ruling that the patent is indefinite renders the patent invalid and unenforceable. On July 20, 2016, the U.S. District Court granted the motion for summary judgment and issued an order dismissing all claims against AES with prejudice. Lufthansa has filed an appeal with the United States Court of Appeals for the Federal Circuit. The Company believes that it has valid defenses to Lufthansa’s claims and will vigorously contest the appeal. As loss exposure is neither probable nor estimable at this time, the Companyhas not recorded any liability with respect to this litigation as of April 1, 2017.

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Segment Information

3 Months Ended

Apr. 01, 2017

Segment Reporting [Abstract]

Segment Information

Segment Information

Below are the sales and operating profit by segment for the three months ended April 1, 2017 and April 2, 2016 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
(Dollars in thousands)	April 1, 2017			April 2, 2016
Sales
Aerospace	$	136,827		$	138,649
Less Intersegment Sales	—			(340		)
Total Aerospace Sales	136,827			138,309
Total Test Systems Sales	15,569			21,221
Total Consolidated Sales	$	152,396		$	159,530
Operating Profit and Margins
Aerospace	$	19,754		$	18,691
	14.4		%	13.5		%
Test Systems	318			2,210
	2.0		%	10.4		%
Total Operating Profit	20,072			20,901
	13.2		%	13.1		%
Deductions from Operating Profit
Interest Expense, Net of Interest Income	1,133			1,087
Corporate Expenses and Other	3,448			3,302
Income Before Income Taxes	$	15,491		$	16,512

Total Assets:

(In thousands)	April 1, 2017		December 31, 2016
Aerospace	$	511,105	$	500,892
Test Systems	74,138		76,575
Corporate	18,043		26,877
Total Assets	$	603,286	$	604,344

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Fair Value

3 Months Ended

Apr. 01, 2017

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. The financial liabilities carried at fair value measured on a recurring basis consisted of contingent consideration related to a prior acquisition, valued at zero at December 31, 2016, determined using Level 3 inputs. This arrangement has expired and as of April 1, 2017 there are no financial liabilities carried at fair value measured on a recurring basis. There were no financial assets carried at fair value measured on a recurring basis at December 31, 2016 or April 1, 2017.

On a Non-recurring Basis:

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 Company utilizes a discounted cash flow analysis to estimate the fair value of reporting units utilizing unobservable inputs. The fair value measurement of the reporting unit under the step-one and step-two analysis of the quantitative goodwill impairment test are classified as Level 3 inputs.

Intangible assets that are amortized 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. For the Company’s indefinite-lived intangible asset, the impairment test consists of comparing the fair value, determined using the relief from royalty method, with its carrying amount. An impairment loss would be recognized for the carrying amount in excess of its fair value.

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. As of April 1, 2017, the Company concluded that no indicators of impairment relating to intangible assets or goodwill existed and an interim test was not performed.

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Recent Accounting Pronouncements

3 Months Ended

Apr. 01, 2017

Accounting Changes and Error Corrections [Abstract]

Recent Accounting Pronouncements

Recent Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2014-9, Revenue from Contracts with Customers. This new standard is effective for reporting periods beginning after December 15, 2017, pursuant to the issuance of ASU 2015-14, Revenue from Contracts with Customers: Deferral of Effective Date issued in August 2015. The comprehensive new standard will supersede existing revenue recognition guidance and require revenue to be recognized when promised goods or services are transferred to customers in amounts that reflect the consideration to which the company expects to be entitled in exchange for those goods or services. Adoption of the new rules could affect the timing of revenue recognition for certain transactions. The guidance permits two implementation approaches, one requiring retrospective application of the new standard with restatement of prior years and one requiring prospective application of the new standard with disclosure of results under old standards. The Company will adopt the new standard on January 1, 2018, using the modified retrospective transition method.

The adoption of this amendment may require us to accelerate the recognition of revenue as compared to current standards, for certain customers, in cases where we produce products unique to those customers; and for which we would have an enforceable right of payment for production completed to date. The Company has identified its revenue streams, reviewed the initial impacts of adopting the new standard on those revenue streams, and appointed a project management leader. The Company continues to evaluate the quantitative and qualitative impacts of the standard.

In February 2016, the FASB issued ASU No. 2016 - 02, Leases. The new standard is effective for reporting periods beginning after December 15, 2018. Early adoption is permitted. The standard will require lessees to report most leases as assets and liabilities on the balance sheet, while lessor accounting will remain substantially unchanged. The standard requires a modified retrospective transition approach for existing leases, whereby the new rules will be applied to the earliest year presented.  The adoption of the standard is not expected to have a material effect on the Company’s financial position, results of operations or cash flows.

In August 2016, the FASB issued ASU No. 2016-15, Classification of Certain Cash Receipts and Cash Payments, which is intended to reduce diversity in practice in how certain cash receipts and payments are presented and classified in the statement of cash flows. The standard provides guidance in a number of situations including, among others, settlement of zero-coupon bonds, contingent consideration payments made after a business combination, proceeds from the settlement of insurance claims, and distributions received from equity method investees. The ASU also provides guidance for classifying cash receipts and payments that have aspects of more than one class of cash flows. This ASU is effective for fiscal years beginning after December 15, 2017, with early adoption permitted. The standard requires application using a retrospective transition method. This ASU is not expected to have a material impact on the Company’s consolidated results of operations and financial condition.

In January 2017, the FASB issued ASU No. 2017-01, Clarifying the Definition of a Business, which narrows the existing definition of a business and provides a framework for evaluating whether a transaction should be accounted for as an acquisition (or disposal) of assets or a business. The ASU requires an entity to evaluate if substantially all of the fair value of the gross assets acquired is concentrated in a single identifiable asset or a group of similar identifiable assets; if so, the set of transferred assets and activities (collectively, the set) is not a business. To be considered a business, the set would need to include an input and a substantive process that together significantly contribute to the ability to create outputs. The standard also narrows the definition of outputs. The definition of a business affects areas of accounting such as acquisitions, disposals and goodwill. Under the new guidance, fewer acquired sets are expected to be considered businesses. This ASU is effective for fiscal years beginning after December 15, 2017 on a prospective basis with early adoption permitted. The Company would apply this guidance to applicable transactions after the adoption date.

In March 2017, the FASB issued ASU 2017-07, Compensation-Retirement Benefits(Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, which requires employers to include only the service cost component of net periodic pension cost and net periodic postretirement benefit cost in operating expenses. The other components of net benefit cost, including amortization of prior service cost/credit and net actuarial gains/losses, and settlement and curtailment effects, are to be included in non-operating expenses. The ASU also stipulates that only the service cost component of net benefit cost is eligible for capitalization. The effective date for adoption of this guidance begins on January 1, 2018, with early adoption permitted. The Company is currently evaluating the effect that this standard will have on the consolidated financial statements.

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Subsequent Events

3 Months Ended

Apr. 01, 2017

Business Combinations [Abstract]

Subsequent Events

Subsequent Events

Custom Control Concepts LLC

On April 3, 2017, Astronics Custom Control Concepts Inc., a wholly owned subsidiary of the Company acquired substantially all the assets and certain liabilities of Custom Control Concepts LLC (“CCC”), located in Kent, Washington. CCC is a provider of cabin management and in-flight entertainment systems for a range of aircraft. The total consideration for the transaction was approximately $11 million in cash. All of the goodwill and purchased intangible assets are expected to be deductible for tax purposes over 15 years. The purchase price allocation for this acquisition has not been finalized. CCC will be included in our Aerospace segment.

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Basis of Presentation (Policies)

3 Months Ended

Apr. 01, 2017

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

Operating Results

The results of operations for any interim period are not necessarily indicative of results for the full year. Operating results for the three months ended April 1, 2017 are not necessarily indicative of the results that may be expected for the year ending December 31, 2017.

The balance sheet at December 31, 2016 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 for complete financial statements.

Description of the Business

Description of the Business

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

We have operations in the United States (“U.S.”), Canada and France. We design and build our products through our wholly owned subsidiaries Armstrong Aerospace, Inc. (“Armstrong”); Astronics Advanced Electronic Systems Corp. (“AES”); Astronics AeroSat Corporation (“AeroSat”); Ballard Technology, Inc. (“Ballard”); Astronics DME LLC (“DME”); Luminescent Systems, Inc. (“LSI”); Luminescent Systems Canada, Inc. (“LSI Canada”); Max-Viz, Inc. (“Max-Viz”); Peco, Inc. (“Peco”); PGA Electronic s.a. (“PGA”) and Astronics Test Systems, Inc. (“ATS”). On April 3, 2017, Astronics Custom Control Concepts Inc. ("CCC") acquired all of the assets and certain liabilities of Custom Control Concepts LLC.

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

Cost of Products Sold, Engineering and Development 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.

Foreign Currency Translation

Foreign Currency Translation

The aggregate transaction gain or loss included in operations was insignificant for the three months ended April 1, 2017 and April 2, 2016.

Accounting Pronouncements Adopted in 2017 and Recent Accounting Pronouncements

Accounting Pronouncements Adopted in 2017

On January 1, 2017, the Company adopted Accounting Standards Update (“ASU”) No. 2016-09, Improvements to Employee Share-Based Payment Accounting. Prospectively, beginning January 1, 2017, excess tax benefits/deficiencies are reflected as income tax benefit/expense in the statement of income, resulting in a $0.3 million tax benefit in the quarter ended April 1, 2017. The extent of excess tax benefits/deficiencies is subject to variation in the Company’s stock price and timing/extent of employee stock option exercises. Under previous accounting guidance, when a share-based payment award such as a stock option was granted to an employee, the fair value of the award was generally recognized over the vesting period. However, the related deduction from taxes payable was based on the award’s intrinsic value at the time of exercise, which could be either greater (creating an excess tax benefit) or less (creating a tax deficiency) than the compensation cost recognized in the financial statements. Excess tax benefits were recognized in additional paid-in capital (“APIC”) within equity, while deficiencies were first recorded to APIC to the extent previously recognized excess tax benefits exist, after which time deficiencies were recorded to income tax expense. The Company’s adoption of this ASU also resulted in associated excess tax benefits being classified as an operating activity in the same manner as other cash flows related to income taxes in the statement of cash flows prospectively beginning January 1, 2017. Based on the adoption methodology applied, the statement of cash flows classification of prior periods has not changed.  As permitted by the ASU, the Company has elected to account for forfeitures as they occur.  None of the other provisions in this amended guidance had a significant impact on the Company’s consolidated financial statements.

In January 2017, the FASB issued ASU No. 2017-04, Simplifying the Test for Goodwill Impairment. Under the new standard, goodwill impairment would be measured as the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying value of goodwill. This ASU eliminates existing guidance that requires an entity to determine goodwill impairment by calculating the implied fair value of goodwill by hypothetically assigning the fair value of a reporting unit to all of its assets and liabilities as if that reporting unit had been acquired in a business combination. This ASU is effective prospectively to annual and interim impairment tests beginning after December 15, 2019, with early adoption permitted. The adoption of ASU 2017-04 on January 1, 2017 had no impact on the financial statements as of or for the three months ended April 1, 2017, as there was no impairment analysis performed during the period.

Recent Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2014-9, Revenue from Contracts with Customers. This new standard is effective for reporting periods beginning after December 15, 2017, pursuant to the issuance of ASU 2015-14, Revenue from Contracts with Customers: Deferral of Effective Date issued in August 2015. The comprehensive new standard will supersede existing revenue recognition guidance and require revenue to be recognized when promised goods or services are transferred to customers in amounts that reflect the consideration to which the company expects to be entitled in exchange for those goods or services. Adoption of the new rules could affect the timing of revenue recognition for certain transactions. The guidance permits two implementation approaches, one requiring retrospective application of the new standard with restatement of prior years and one requiring prospective application of the new standard with disclosure of results under old standards. The Company will adopt the new standard on January 1, 2018, using the modified retrospective transition method.

The adoption of this amendment may require us to accelerate the recognition of revenue as compared to current standards, for certain customers, in cases where we produce products unique to those customers; and for which we would have an enforceable right of payment for production completed to date. The Company has identified its revenue streams, reviewed the initial impacts of adopting the new standard on those revenue streams, and appointed a project management leader. The Company continues to evaluate the quantitative and qualitative impacts of the standard.

In February 2016, the FASB issued ASU No. 2016 - 02, Leases. The new standard is effective for reporting periods beginning after December 15, 2018. Early adoption is permitted. The standard will require lessees to report most leases as assets and liabilities on the balance sheet, while lessor accounting will remain substantially unchanged. The standard requires a modified retrospective transition approach for existing leases, whereby the new rules will be applied to the earliest year presented.  The adoption of the standard is not expected to have a material effect on the Company’s financial position, results of operations or cash flows.

In August 2016, the FASB issued ASU No. 2016-15, Classification of Certain Cash Receipts and Cash Payments, which is intended to reduce diversity in practice in how certain cash receipts and payments are presented and classified in the statement of cash flows. The standard provides guidance in a number of situations including, among others, settlement of zero-coupon bonds, contingent consideration payments made after a business combination, proceeds from the settlement of insurance claims, and distributions received from equity method investees. The ASU also provides guidance for classifying cash receipts and payments that have aspects of more than one class of cash flows. This ASU is effective for fiscal years beginning after December 15, 2017, with early adoption permitted. The standard requires application using a retrospective transition method. This ASU is not expected to have a material impact on the Company’s consolidated results of operations and financial condition.

In January 2017, the FASB issued ASU No. 2017-01, Clarifying the Definition of a Business, which narrows the existing definition of a business and provides a framework for evaluating whether a transaction should be accounted for as an acquisition (or disposal) of assets or a business. The ASU requires an entity to evaluate if substantially all of the fair value of the gross assets acquired is concentrated in a single identifiable asset or a group of similar identifiable assets; if so, the set of transferred assets and activities (collectively, the set) is not a business. To be considered a business, the set would need to include an input and a substantive process that together significantly contribute to the ability to create outputs. The standard also narrows the definition of outputs. The definition of a business affects areas of accounting such as acquisitions, disposals and goodwill. Under the new guidance, fewer acquired sets are expected to be considered businesses. This ASU is effective for fiscal years beginning after December 15, 2017 on a prospective basis with early adoption permitted. The Company would apply this guidance to applicable transactions after the adoption date.

In March 2017, the FASB issued ASU 2017-07, Compensation-Retirement Benefits(Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, which requires employers to include only the service cost component of net periodic pension cost and net periodic postretirement benefit cost in operating expenses. The other components of net benefit cost, including amortization of prior service cost/credit and net actuarial gains/losses, and settlement and curtailment effects, are to be included in non-operating expenses. The ASU also stipulates that only the service cost component of net benefit cost is eligible for capitalization. The effective date for adoption of this guidance begins on January 1, 2018, with early adoption permitted. The Company is currently evaluating the effect that this standard will have on the consolidated financial statements.

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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Inventories (Tables)

3 Months Ended

Apr. 01, 2017

Inventory Disclosure [Abstract]

Summary of Inventories

Inventories are as follows:

(In thousands)	April 1, 2017		December 31, 2016
Finished Goods	$	29,095	$	28,792
Work in Progress	27,723		20,790
Raw Material	65,366		67,015
	$	122,184	$	116,597

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Property, Plant and Equipment (Tables)

3 Months Ended

Apr. 01, 2017

Property, Plant and Equipment [Abstract]

Summary of Property, Plant and Equipment

The following table summarizes Property, Plant and Equipment as follows:

(In thousands)	April 1, 2017		December 31, 2016
Land	$	11,123	$	11,112
Buildings and Improvements	79,318		79,191
Machinery and Equipment	95,653		93,683
Construction in Progress	8,964		8,182
	195,058		192,168
Less Accumulated Depreciation	72,899		69,356
	$	122,159	$	122,812

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Intangible Assets (Tables)

3 Months Ended

Apr. 01, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Acquired Intangible Assets

The following table summarizes acquired intangible assets as follows:

		April 1, 2017				December 31, 2016
(In thousands)	Weighted Average Life	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Patents	4 Years	$	2,146	$	1,497	$	2,146	$	1,450
Non-compete Agreement	3 Years	2,500		1,104		2,500		979
Trade Names	7 Years	10,199		3,387		10,189		3,153
Completed and Unpatented Technology	6 Years	24,135		9,830		24,118		9,221
Backlog	-	11,224		11,224		11,224		11,224
Customer Relationships	11 Years	97,075		24,708		97,046		23,093
Total Intangible Assets	6 Years	$	147,279	$	51,750	$	147,223	$	49,120

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 1, 2017		April 2, 2016
Amortization Expense	$	2,618	$	2,808

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

Amortization expense for acquired intangible assets expected for 2017 and for each of the next five years is summarized as follows:

(In thousands)
2017	$	10,450
2018	10,133
2019	9,754
2020	9,198
2021	9,152
2022	8,756

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Goodwill (Tables)

3 Months Ended

Apr. 01, 2017

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 1, 2017:

(In thousands)	December 31, 2016		Acquisition		Foreign Currency Translation		April 1, 2017
Aerospace	$	115,207	$	—	$	87	$	115,294
Test Systems	—		—		—		—
	$	115,207	$	—	$	87	$	115,294

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Product Warranties (Tables)

3 Months Ended

Apr. 01, 2017

Product Warranties Disclosures [Abstract]

Summary of Activity in Warranty Accrual

Activity in the warranty accrual is summarized as follows:

	Three Months Ended
(In thousands)	April 1, 2017			April 2, 2016
Balance at Beginning of Period	$	4,675		$	5,741
Warranties Issued	467			661
Warranties Settled	(707		)	(885		)
Reassessed Warranty Exposure	(78		)	(395		)
Balance at End of Period	$	4,357		$	5,122

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Shareholders' Equity (Tables)

3 Months Ended

Apr. 01, 2017

Equity [Abstract]

Summary of Changes in Shareholder's Equity

The changes in shareholders’ equity for the three months ended April 1, 2017 are summarized as follows:

				Number of Shares
(Dollars and Shares in thousands)	Amount			Common Stock			Convertible Class B Stock
Shares Authorized				40,000			15,000
Share Par Value				$	0.01		$	0.01
COMMON STOCK
Beginning of Period	$	297		21,955			7,665
Conversion of Class B Shares to Common Shares	—			320			(320		)
Exercise of Stock Options	—			16			33
End of Period	$	297		22,291			7,378
ADDITIONAL PAID IN CAPITAL
Beginning of Period	$	64,752
Stock Compensation Expense	656
Exercise of Stock Options	295
End of Period	$	65,703
ACCUMULATED OTHER COMPREHENSIVE LOSS
Beginning of Period	$	(15,494	)
Foreign Currency Translation Adjustment	395
Retirement Liability Adjustment – Net of Tax	131
End of Period	$	(14,968	)
RETAINED EARNINGS
Beginning of Period	$	305,512
Net Income	11,587
End of Period	$	317,099
TREASURY STOCK
Beginning of Period	$	(17,618	)	(523		)
Purchase	(4,413		)	(148		)
End of Period	$	(22,031	)	(671		)
TOTAL SHAREHOLDERS’ EQUITY
Beginning of Period	$	337,449
End of Period	$	346,100		21,620			7,378

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Earnings Per Share (Tables)

3 Months Ended

Apr. 01, 2017

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 1, 2017	April 2, 2016
Weighted Average Shares - Basic	29,102	29,395
Net Effect of Dilutive Stock Options	1,080	964
Weighted Average Shares - Diluted	30,182	30,359

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Accumulated Other Comprehensive Loss and Other Comprehensive Loss (Tables)

3 Months Ended

Apr. 01, 2017

Equity [Abstract]

Components of Accumulated Other Comprehensive Loss

The components of accumulated other comprehensive loss are as follows:

(In thousands)	April 1, 2017			December 31, 2016
Foreign Currency Translation Adjustments	$	(8,202	)	$	(8,597	)
Retirement Liability Adjustment – Before Tax	(10,409		)	(10,611		)
Tax Benefit	3,643			3,714
Retirement Liability Adjustment – After Tax	(6,766		)	(6,897		)
Accumulated Other Comprehensive Loss	$	(14,968	)	$	(15,494	)

Components of Other Comprehensive Income

The components of other comprehensive income are as follows:

	Three Months Ended
(In thousands)	April 1, 2017			April 2, 2016
Foreign Currency Translation Adjustments	$	395		$	1,816
Retirement Liability Adjustments:
Reclassifications to General and Administrative Expense:
Amortization of Prior Service Cost	101			110
Amortization of Net Actuarial Losses	101			91
Tax Benefit	(71		)	(70		)
Retirement Liability Adjustment	131			131
Other Comprehensive Income	$	526		$	1,947

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Supplemental Retirement Plan and Related Post Retirement Benefits (Tables)

3 Months Ended

Apr. 01, 2017

Compensation and Retirement Disclosure [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 1, 2017		April 2, 2016
Service Cost	$	46	$	44
Interest Cost	224		225
Amortization of Prior Service Cost	97		104
Amortization of Net Actuarial Losses	93		86
Net Periodic Cost	$	460	$	459

Participants in the SERP are entitled to paid medical, dental and long-term care insurance benefits upon retirement under the plan. The following table sets forth information regarding the net periodic cost recognized for those benefits:

	Three Months Ended
(In thousands)	April 1, 2017		April 2, 2016
Service Cost	$	2	$	1
Interest Cost	10		11
Amortization of Prior Service Cost	4		6
Amortization of Net Actuarial Losses	8		5
Net Periodic Cost	$	24	$	23

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Segment Information (Tables)

3 Months Ended

Apr. 01, 2017

Segment Reporting [Abstract]

Summary of Segment Reporting Information

Below are the sales and operating profit by segment for the three months ended April 1, 2017 and April 2, 2016 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
(Dollars in thousands)	April 1, 2017			April 2, 2016
Sales
Aerospace	$	136,827		$	138,649
Less Intersegment Sales	—			(340		)
Total Aerospace Sales	136,827			138,309
Total Test Systems Sales	15,569			21,221
Total Consolidated Sales	$	152,396		$	159,530
Operating Profit and Margins
Aerospace	$	19,754		$	18,691
	14.4		%	13.5		%
Test Systems	318			2,210
	2.0		%	10.4		%
Total Operating Profit	20,072			20,901
	13.2		%	13.1		%
Deductions from Operating Profit
Interest Expense, Net of Interest Income	1,133			1,087
Corporate Expenses and Other	3,448			3,302
Income Before Income Taxes	$	15,491		$	16,512

Total Assets:

(In thousands)	April 1, 2017		December 31, 2016
Aerospace	$	511,105	$	500,892
Test Systems	74,138		76,575
Corporate	18,043		26,877
Total Assets	$	603,286	$	604,344

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Basis of Presentation (Detail) $ in Millions		3 Months Ended
	Oct. 11, 2016	Apr. 01, 2017 USD ($)	Apr. 02, 2016 USD ($)
Business Acquisition
Research and development, design and related engineering		$ 22.9	$ 23.3
Excess tax benefit		$ 0.3
Convertible Class B Stock
Business Acquisition
Common stock conversion	0.15
Date of payment of dividend to shareholders		Oct. 11, 2016

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Inventories - Summary of Inventories (Detail) - USD ($) $ in Thousands	Apr. 01, 2017	Dec. 31, 2016
Inventory Disclosure [Abstract]
Finished Goods	$ 29,095	$ 28,792
Work in Progress	27,723	20,790
Raw Material	65,366	67,015
Inventory, net	$ 122,184	$ 116,597

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Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	Apr. 01, 2017	Dec. 31, 2016
Property, Plant and Equipment
Property, plant and equipment, gross	$ 195,058	$ 192,168
Less Accumulated Depreciation	72,899	69,356
Property, plant and equipment, net	122,159	122,812
Land
Property, Plant and Equipment
Property, plant and equipment, gross	11,123	11,112
Buildings and Improvements
Property, Plant and Equipment
Property, plant and equipment, gross	79,318	79,191
Machinery and Equipment
Property, Plant and Equipment
Property, plant and equipment, gross	95,653	93,683
Construction in Progress
Property, Plant and Equipment
Property, plant and equipment, gross	$ 8,964	$ 8,182

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Intangible Assets - Summary of Acquired Intangible Assets (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets
Weighted Average Life	6 years
Gross Carrying Amount	$ 147,279	$ 147,223
Accumulated Amortization	$ 51,750	49,120
Patents
Finite-Lived Intangible Assets
Weighted Average Life	4 years
Gross Carrying Amount	$ 2,146	2,146
Accumulated Amortization	$ 1,497	1,450
Non-compete Agreement
Finite-Lived Intangible Assets
Weighted Average Life	3 years
Gross Carrying Amount	$ 2,500	2,500
Accumulated Amortization	$ 1,104	979
Trade Names
Finite-Lived Intangible Assets
Weighted Average Life	7 years
Gross Carrying Amount	$ 10,199	10,189
Accumulated Amortization	$ 3,387	3,153
Completed and Unpatented Technology
Finite-Lived Intangible Assets
Weighted Average Life	6 years
Gross Carrying Amount	$ 24,135	24,118
Accumulated Amortization	$ 9,830	9,221
Backlog
Finite-Lived Intangible Assets
Weighted Average Life	0 years
Gross Carrying Amount	$ 11,224	11,224
Accumulated Amortization	$ 11,224	11,224
Customer Relationships
Finite-Lived Intangible Assets
Weighted Average Life	11 years
Gross Carrying Amount	$ 97,075	97,046
Accumulated Amortization	$ 24,708	$ 23,093

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Intangible Assets - Summary of Amortization Expense for Acquired Intangibles (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization Expense	$ 2,618	$ 2,808

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Intangible Assets - Summary of Amortization Expense for Intangible Assets for Each of Next Five Years (Detail) $ in Thousands	Apr. 01, 2017 USD ($)
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
2017	$ 10,450
2018	10,133
2019	9,754
2020	9,198
2021	9,152
2022	$ 8,756

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Goodwill - Summary of Changes in Carrying Amount of Goodwill (Detail) $ in Thousands	3 Months Ended
	Apr. 01, 2017 USD ($)
Goodwill [Roll Forward]
Balance at beginning of period	$ 115,207
Acquisition	0
Foreign Currency Translation	87
Balance at end of period	115,294
Operating Segments | Aerospace
Goodwill [Roll Forward]
Balance at beginning of period	115,207
Acquisition	0
Foreign Currency Translation	87
Balance at end of period	115,294
Operating Segments | Test Systems
Goodwill [Roll Forward]
Balance at beginning of period	0
Acquisition	0
Foreign Currency Translation	0
Balance at end of period	$ 0

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Long-Term Debt and Notes Payable (Detail)	3 Months Ended
	Apr. 01, 2017 USD ($) fiscal_quarter
Debt Instrument
Duration of permitted leverage ratio following acquisition, number of fiscal quarters | fiscal_quarter	2
Interest coverage ratio	28.6
Leverage ratio	1.34
Amended and Restated Credit Agreement
Debt Instrument
Maturity date of loans	Jan. 13, 2021
Ratio of funded debt to Adjusted EBITDA	3.5
Minimum interest coverage ratio	3.0
Amended and Restated Credit Agreement | Maximum
Debt Instrument
Ratio of funded debt to Adjusted EBITDA	4.0
Amended and Restated Credit Agreement | Line of Credit | Revolving Credit Facility
Debt Instrument
Maximum borrowing capacity	$ 350,000,000
Line of credit facility increase amount	150,000,000
Credit facility outstanding	130,000,000
Revolving credit facility remaining	$ 218,900,000
Amended and Restated Credit Agreement | Line of Credit | Revolving Credit Facility | Minimum
Debt Instrument
Basis points for commitment fee	0.175%
Amended and Restated Credit Agreement | Line of Credit | Revolving Credit Facility | Minimum | LIBOR
Debt Instrument
Basis points for variable interest rate	1.375%
Amended and Restated Credit Agreement | Line of Credit | Revolving Credit Facility | Maximum
Debt Instrument
Basis points for commitment fee	0.35%
Amended and Restated Credit Agreement | Line of Credit | Revolving Credit Facility | Maximum | LIBOR
Debt Instrument
Basis points for variable interest rate	2.25%
Amended and Restated Credit Agreement | Line of Credit | Letter of Credit
Debt Instrument
Credit facility allocated	$ 20,000,000
Outstanding letters of credit	$ 1,100,000

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Product Warranties - Summary of Activity in Warranty Accrual (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Movement in Standard Product Warranty Accrual [Roll Forward]
Balance at Beginning of Period	$ 4,675	$ 5,741
Warranties Issued	467	661
Warranties Settled	(707)	(885)
Reassessed Warranty Exposure	(78)	(395)
Balance at End of Period	$ 4,357	$ 5,122
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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Income Taxes (Detail)	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Income Tax Disclosure [Abstract]
Effective tax rate	25.20%	30.40%

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Shareholders' Equity - Summary of Changes in Shareholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Feb. 24, 2016	Apr. 01, 2017	Apr. 02, 2016
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning of Period		$ 337,449
Foreign Currency Translation Adjustment		395	$ 1,816
Retirement Liability Adjustment – Net of Tax		131	131
Net Income		11,587	$ 11,485
End of Period		$ 346,100
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
End of Period (in shares)		21,620,000
Convertible Class B Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
End of Period (in shares)		7,378,000
COMMON STOCK
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning of Period		$ 297
Conversion of Class B Shares to Common Shares		0
Exercise of Stock Options		0
End of Period		$ 297
COMMON STOCK | Common Stock
Class of Stock [Line Items]
Shares Authorized (in shares)		40,000,000
Share Par Value (in usd per share)		$ 0.01
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning of Period (in shares)		21,955,000
Conversion of Class B Shares to Common Shares (in shares)		320,000
Exercise of Stock Options (in shares)		16,000
End of Period (in shares)		22,291,000
COMMON STOCK | Convertible Class B Stock
Class of Stock [Line Items]
Shares Authorized (in shares)		15,000,000
Share Par Value (in usd per share)		$ 0.01
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning of Period (in shares)		7,665,000
Conversion of Class B Shares to Common Shares (in shares)		(320,000)
Exercise of Stock Options (in shares)		33,000
End of Period (in shares)		7,378,000
ADDITIONAL PAID IN CAPITAL
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning of Period		$ 64,752
Exercise of Stock Options		295
Stock Compensation Expense		656
End of Period		65,703
ACCUMULATED OTHER COMPREHENSIVE LOSS
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning of Period		(15,494)
Foreign Currency Translation Adjustment		395
Retirement Liability Adjustment – Net of Tax		131
End of Period		(14,968)
RETAINED EARNINGS
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning of Period		305,512
Net Income		11,587
End of Period		317,099
TREASURY STOCK
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning of Period		$ (17,618)
Beginning of Period (in shares)		523,000
Purchase	$ (22,000)	$ (4,413)
Purchase (in shares)	(671,000)	(148,000)
End of Period		$ (22,031)
End of Period (in shares)		671,000

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Shareholders' Equity (Details) - USD ($) shares in Thousands		3 Months Ended
	Feb. 24, 2016	Apr. 01, 2017
Class of Stock [Line Items]
Authorized repurchase of common stock, amount	$ 50,000,000
Treasury Stock
Class of Stock [Line Items]
Number of shares repurchased (in shares)	671	148
Repurchase of shares	$ 22,000,000	$ 4,413,000

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Earnings Per Share - Summary of Basic and Diluted Weighted-Average Shares Outstanding (Detail) - shares shares in Thousands	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Earnings Per Share [Abstract]
Weighted Average Shares - Basic (in shares)	29,102	29,395
Net Effect of Dilutive Stock Options (in shares)	1,080	964
Weighted Average Shares - Diluted (in shares)	30,182	30,359

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Earnings Per Share Earnings Per Share - Narrative (Details) shares in Thousands		3 Months Ended
	Oct. 11, 2016	Apr. 01, 2017 shares
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Number of shares out-of-the-money (in shares)		474
Convertible Class B Stock
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Common stock conversion	0.15
Date of payment of dividend to shareholders		Oct. 11, 2016

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Accumulated Other Comprehensive Loss and Other Comprehensive Loss - Components of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands	Apr. 01, 2017	Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total Shareholders’ Equity	$ 346,100	$ 337,449
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total Shareholders’ Equity	(8,202)	(8,597)
Retirement Liability Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Retirement Liability Adjustment – Before Tax	(10,409)	(10,611)
Tax Benefit	3,643	3,714
Total Shareholders’ Equity	(6,766)	(6,897)
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total Shareholders’ Equity	$ (14,968)	$ (15,494)

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Accumulated Other Comprehensive Loss and Other Comprehensive Loss - Components of Other Comprehensive Income (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income	$ 526	$ 1,947
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income	395	1,816
Amortization of Prior Service Cost
Reclassifications to General and Administrative Expense:
Reclassifications to General and Administrative Expense	101	110
Amortization of Net Actuarial Losses
Reclassifications to General and Administrative Expense:
Reclassifications to General and Administrative Expense	101	91
Retirement Liability Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income	131	131
Reclassifications to General and Administrative Expense:
Tax Benefit	$ (71)	$ (70)

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Supplemental Retirement Plan and Related Post Retirement Benefits - Summary of the Components of Net Periodic Cost (Detail) $ in Thousands	3 Months Ended
	Apr. 01, 2017 USD ($) retirement_plan	Apr. 02, 2016 USD ($)
Compensation and Retirement Disclosure [Abstract]
Number of non-qualified supplemental retirement defined benefit plans | retirement_plan	2
SERP
Defined Benefit Plan Disclosure
Service Cost	$ 46	$ 44
Interest Cost	224	225
Amortization of Prior Service Cost	97	104
Amortization of Net Actuarial Losses	93	86
Net Periodic Cost	460	459
SERP Medical
Defined Benefit Plan Disclosure
Service Cost	2	1
Interest Cost	10	11
Amortization of Prior Service Cost	4	6
Amortization of Net Actuarial Losses	8	5
Net Periodic Cost	$ 24	$ 23

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Sales to Major Customers (Detail) $ in Millions	3 Months Ended
	Apr. 01, 2017 USD ($) customer	Apr. 02, 2016 customer
Segment Reporting, Asset Reconciling Item
Number of major customers | customer	2	2
Sales Revenue, Net | Customer Concentration Risk | Major Customer One
Segment Reporting, Asset Reconciling Item
Percent of consolidated revenue	24.00%	22.00%
Sales Revenue, Net | Customer Concentration Risk | Major Customer Two
Segment Reporting, Asset Reconciling Item
Percent of consolidated revenue	18.00%	15.00%
Sales Revenue, Net | Customer Concentration Risk | Two Major Customers
Segment Reporting, Asset Reconciling Item
Accounts receivable from major customers | $	$ 39.8

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Legal Proceedings Legal Proceedings (Details) - Germany - Lufthansa Technik AG $ in Millions	3 Months Ended
	Apr. 01, 2017 USD ($) product
Loss Contingencies [Line Items]
Number of products in distribution channels | product	0
Patent Infringement
Loss Contingencies [Line Items]
Appeal process duration (in years, up to)	2 years
Patent Infringement | AES | Minimum
Loss Contingencies [Line Items]
Estimate of the value of the dispute	$ 1
Patent Infringement | AES | Maximum
Loss Contingencies [Line Items]
Estimate of the value of the dispute	$ 3

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Segment Information - Summary of Segment Reporting Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016	Dec. 31, 2016
Sales
Total Consolidated Sales	$ 152,396	$ 159,530
Operating Profit and Margins
Total Operating Profit	16,624	17,599
Deductions from Operating Profit
Interest Expense, Net of Interest Income	1,133	1,087
Income Before Income Taxes	15,491	16,512
Total Assets	603,286		$ 604,344
Aerospace
Sales
Total Consolidated Sales	136,827	138,309
Test Systems
Sales
Total Consolidated Sales	15,569	21,221
Operating Segments
Operating Profit and Margins
Total Operating Profit	$ 20,072	$ 20,901
Operating margins	13.20%	13.10%
Operating Segments | Aerospace
Sales
Total Consolidated Sales	$ 136,827	$ 138,649
Operating Profit and Margins
Total Operating Profit	$ 19,754	$ 18,691
Operating margins	14.40%	13.50%
Deductions from Operating Profit
Total Assets	$ 511,105		500,892
Operating Segments | Test Systems
Operating Profit and Margins
Total Operating Profit	$ 318	$ 2,210
Operating margins	2.00%	10.40%
Deductions from Operating Profit
Total Assets	$ 74,138		76,575
Intersegment Eliminations | Aerospace
Sales
Total Consolidated Sales	0	$ (340)
Corporate Expenses and Other
Deductions from Operating Profit
Corporate Expenses and Other	3,448	$ 3,302
Total Assets	$ 18,043		$ 26,877

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Fair Value - Financial Assets and Liabilities Carried at Fair Value Measured on Recurring Basis (Detail) - Recurring Basis - USD ($)	Apr. 01, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Financial liabilities carried at fair value	$ 0
Financial assets carried at fair value	$ 0	$ 0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Acquisition contingent consideration		$ 0

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Subsequent Events (Detail) - Custom Control Concepts LLC - Astronics Custom Control Concepts Inc. - Subsequent Event $ in Millions	Apr. 03, 2017 USD ($)
Subsequent Event [Line Items]
Business acquisition purchase price paid in cash	$ 11
Period goodwill and purchased intangible assets are expected to be deductible for tax purposes	15 years