Restructuring (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2014	Dec. 31, 2013
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining		$ 0
Restructuring activities, total expense to be incurred		2,740
Precise Machine [Member]
Restructuring Cost and Reserve [Line Items]
Integration expense resulting from reorganization activities		364
Relocation of Machining Operations from Savannah Facility [Member]
Restructuring Cost and Reserve [Line Items]
Integration expense resulting from reorganization activities		500
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	253	1,441
Employee Severance [Member] | Precise Machine [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining		0
Restructuring activities, total expense to be incurred		615
Employee Severance [Member] | Relocation of Machining Operations from Savannah Facility [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining		0
Restructuring activities, total expense to be incurred		47
Employee Severance [Member] | Other Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining		0
Restructuring activities, total expense to be incurred		1,954
Lease Termination [Member] | Precise Machine [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining		0
Restructuring activities, total expense to be incurred		124
Selling, General and Administrative Expenses [Member] | Employee Severance [Member] | Precise Machine [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring related expenses	(18)	287	453
Selling, General and Administrative Expenses [Member] | Employee Severance [Member] | Relocation of Machining Operations from Savannah Facility [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring related expenses	0	47
Selling, General and Administrative Expenses [Member] | Employee Severance [Member] | Other Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring related expenses	$ 783	$ 1,954