Goodwill and Intangible Assets (Details) (USD $)	12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended					12 Months Ended
	Dec. 31, 2013 item	Dec. 31, 2012	Dec. 31, 2013 Forkardt	May 09, 2013 Forkardt	Dec. 31, 2012 Usach	Dec. 20, 2012 Usach	Dec. 31, 2013 Forkardt Switzerland	Dec. 31, 2013 MMS	Dec. 31, 2013 MMS Usach	Dec. 31, 2012 MMS Usach	Dec. 31, 2013 ATA	Dec. 31, 2013 ATA Forkardt	Dec. 31, 2013 ATA Forkardt Switzerland
Goodwill and Intangible Assets
Number of reportable business segments	2
Summary of goodwill amount
Balance at the beginning of the period	$ 8,497,000			$ 5,678,000		$ 8,657,000		$ 8,497,000			$ 5,016,000
Acquisition			5,678,000		8,497,000					8,497,000		5,678,000
Impairment loss	(3,809,000)							(3,809,000)	(3,800,000)
Disposal							(662,000)						(662,000)
Other adjustments	160,000							160,000
Balance at the end of the period	9,864,000			5,678,000		8,657,000		4,848,000	8,700,000		5,016,000
Gross carrying value of goodwill	38,100,000	32,300,000
Accumulated impairment losses	$ 27,600,000	$ 23,800,000