Astronics Corporation Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Equity - Summary of Changes in Shareholders' Equity (Details)

Shareholders' Equity - Summary of Changes in Shareholders' Equity (Details) - USD ($)		3 Months Ended			6 Months Ended		25 Months Ended
	Dec. 12, 2017	Jun. 30, 2018	Mar. 31, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017	Mar. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning of Period			$ 329,927,000		$ 329,927,000
Adoption of ASU 2018-02			1,400,000
Foreign Currency Translation Adjustment		$ (1,805,000)		$ 2,096,000	(1,572,000)	$ 2,491,000
Retirement Liability Adjustment – Net of Tax		215,000		131,000	430,000	262,000
Net Income		14,025,000		$ 7,685,000	17,319,000	$ 19,272,000
End of Period		$ 351,290,000			$ 351,290,000
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
End of Period (in shares)		21,544,000			21,544,000
Convertible Class B Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
End of Period (in shares)		6,558,000			6,558,000
COMMON STOCK
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning of Period			$ 297,000		$ 297,000
Conversion of Class B Shares to Common Shares					0
Exercise of Stock Options					1,000
End of Period		$ 298,000			$ 298,000
COMMON STOCK \| Common Stock
Class of Stock [Line Items]
Shares Authorized (in shares)		40,000,000			40,000,000
Share Par Value (in usd per share)		$ 0.01			$ 0.01
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning of Period (in shares)			22,861,000		22,861,000
Conversion of Class B Shares to Common Shares (in shares)					332,000
Exercise of Stock Options (in shares)					26,000
End of Period (in shares)		23,219,000			23,219,000
COMMON STOCK \| Convertible Class B Stock
Class of Stock [Line Items]
Shares Authorized (in shares)		15,000,000			15,000,000
Share Par Value (in usd per share)		$ 0.01			$ 0.01
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning of Period (in shares)			6,852,000		6,852,000
Conversion of Class B Shares to Common Shares (in shares)					(332,000)
Exercise of Stock Options (in shares)					38,000
End of Period (in shares)		6,558,000			6,558,000
ADDITIONAL PAID IN CAPITAL
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning of Period			$ 67,791,000		$ 67,791,000
Exercise of Stock Options					280,000
Stock Compensation Expense					1,637,000
End of Period		$ 69,708,000			69,708,000
ACCUMULATED OTHER COMPREHENSIVE LOSS
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning of Period			(13,352,000)		(13,352,000)
Adoption of ASU 2018-02					(1,373,000)
Foreign Currency Translation Adjustment					(1,572,000)
Retirement Liability Adjustment – Net of Tax					430,000
End of Period		(15,867,000)			(15,867,000)
RETAINED EARNINGS
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning of Period			325,191,000		325,191,000
Adoption of ASU 2018-02					1,373,000
Net Income					17,319,000
End of Period		347,151,000			347,151,000
RETAINED EARNINGS \| Accounting Standards Update 2014-09
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of ASU 2014-09								$ 3,300,000	$ 3,268,000
TREASURY STOCK
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning of Period			$ (50,000,000)		$ (50,000,000)
Beginning of Period (in shares)			(1,675,000)		(1,675,000)
Purchase	$ (50,000,000)				$ 0
Purchase (in shares)					0		1,675,000
End of Period		$ (50,000,000)			$ (50,000,000)
End of Period (in shares)		(1,675,000)			(1,675,000)