Goodwill and Other Intangible Assets (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Goodwill [Line Items]
Impairment of Intangible Assets, Finite-lived		$ 1,200,000
Goodwill	49,988,000	50,630,000
Indefinite-Lived Trademarks	2,165,000	2,165,000
Goodwill [Roll Forward]
Goodwill, Balance beginning of period	96,251,000
Accumulated Impairment Loss	(43,252,000)	(45,621,000)
Additions	0
Translation and purchase accounting djustments	(642,000)
Goodwill, Balance end of period	93,240,000	96,251,000
GETS [Member]
Goodwill [Line Items]
Goodwill, Impairment Loss		10,900,000
Goodwill [Roll Forward]
Goodwill, Balance beginning of period	35,713,000
Accumulated Impairment Loss	(11,051,000)	(11,051,000)
Additions	0
Translation and purchase accounting djustments	0
Goodwill, Balance end of period	35,713,000	35,713,000
PSS [Member]
Goodwill [Roll Forward]
Goodwill, Balance beginning of period	44,298,000
Accumulated Impairment Loss	(25,860,000)	(27,904,000)
Additions	0
Translation and purchase accounting djustments	(525,000)
Goodwill, Balance end of period	41,729,000
MRI [Member]
Goodwill [Roll Forward]
Goodwill, Balance beginning of period	16,240,000
Accumulated Impairment Loss	(6,341,000)	(6,666,000)
Additions	0
Translation and purchase accounting djustments	(117,000)
Goodwill, Balance end of period	$ 15,798,000