Business Segment Information (Details)	3 Months Ended			6 Months Ended
	Jun. 30, 2016 USD ($)		Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) segment		Jun. 30, 2015 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment				2
Information about reported segments on the basis used internally to evaluate segment performance [Abstract]
Net sales	$ 83,993,000		$ 97,550,000	$ 171,324,000		$ 190,025,000
Income from operations	(24,841,000)		5,860,000	(21,411,000)		10,174,000
Aerostructures [Member]
Information about reported segments on the basis used internally to evaluate segment performance [Abstract]
Net sales	75,458,000		85,297,000	152,413,000		164,542,000
Income from operations	4,061,000		6,089,000	7,526,000		11,145,000
Engineering Services [Member]
Segment Reporting Information [Line Items]
Goodwill, Impairment Loss	24,302,000			23,402,000
Information about reported segments on the basis used internally to evaluate segment performance [Abstract]
Net sales	8,706,000		12,488,000	19,765,000		25,992,000
Income from operations	(28,850,000)	[1]	(233,000)	(28,659,000)	[1]	(997,000)
Impairment of Intangible Assets, Finite-lived	4,066,000			4,066,000
Eliminations [Member]
Information about reported segments on the basis used internally to evaluate segment performance [Abstract]
Net sales	(171,000)		(235,000)	(854,000)		(509,000)
Income from operations	$ (52,000)		$ 4,000	$ (278,000)		$ 26,000

[1] The three and six months ended June 30, 2016 include a charge of $23,402 related to goodwill impairment and a charge of $4,066 related to intangible asset impairment. (See Note 4, Goodwill and Intangible Assets, to the Consolidated Financial Statements)