Other Intangible Assets (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Finite-lived		$ 1,200,000
Accumulated Amortization		(6,263,000)
Goodwill, Gross	93,240,000	96,251,000
Finite-lived Intangible Assets [Roll Forward]
Gross finite-lived intangible assets, beginning of period	16,522,000
Indefinite-lived trademarks, beginning of period	2,165,000
Gross intangibles assets excluding goodwill, beginning of period	18,687,000
Accumulated amortization, beginning of period	(6,263,000)
Additions to intangible assets	0
Amortization of Intangible Assets	(308,000)
Gross finite-lived intangible assets, end of period	16,522,000	16,522,000
Indefinite-lived trademarks, end of period	2,165,000	2,165,000
Gross intangibles assets excluding goodwill, end of period	18,687,000	18,687,000
Accumulated amortization, end of period	(6,571,000)	(6,263,000)
Goodwill, Impaired, Accumulated Impairment Loss	(43,252,000)	(45,621,000)
Goodwill, Acquired During Period	0
Goodwill, Translation and Purchase Accounting Adjustments	(642,000)
Trademarks [Member]
Finite-lived Intangible Assets [Roll Forward]
Gross finite-lived intangible assets, beginning of period	5,100,000
Accumulated amortization, beginning of period	(680,000)
Additions to intangible assets	0
Amortization of Intangible Assets	(85,000)
Gross finite-lived intangible assets, end of period	5,100,000
Accumulated amortization, end of period	(765,000)
Customer Relationships [Member]
Finite-lived Intangible Assets [Roll Forward]
Gross finite-lived intangible assets, beginning of period	10,300,000
Accumulated amortization, beginning of period	(5,047,000)
Additions to intangible assets	0
Amortization of Intangible Assets	(191,000)
Gross finite-lived intangible assets, end of period	10,300,000
Accumulated amortization, end of period	(5,238,000)
Noncompete Agreements [Member]
Finite-lived Intangible Assets [Roll Forward]
Gross finite-lived intangible assets, beginning of period	150,000
Accumulated amortization, beginning of period	(135,000)
Additions to intangible assets	0
Amortization of Intangible Assets	(8,000)
Gross finite-lived intangible assets, end of period	150,000
Accumulated amortization, end of period	(143,000)
Franchise Rights [Member]
Finite-lived Intangible Assets [Roll Forward]
Gross finite-lived intangible assets, beginning of period	972,000
Accumulated amortization, beginning of period	(401,000)
Additions to intangible assets	0
Amortization of Intangible Assets	(24,000)
Gross finite-lived intangible assets, end of period	972,000
Accumulated amortization, end of period	(425,000)
Developed Technology Rights [Member]
Finite-lived Intangible Assets [Roll Forward]
Gross finite-lived intangible assets, beginning of period	0
Accumulated amortization, beginning of period	0
Additions to intangible assets	0
Amortization of Intangible Assets
Gross finite-lived intangible assets, end of period	0
Accumulated amortization, end of period	0
GETS [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill, Gross	35,713,000	35,713,000
Finite-lived Intangible Assets [Roll Forward]
Goodwill, Impaired, Accumulated Impairment Loss	(11,051,000)	(11,051,000)
Goodwill, Acquired During Period	0
Goodwill, Translation and Purchase Accounting Adjustments	0
PSS [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill, Gross	41,729,000	44,298,000
Finite-lived Intangible Assets [Roll Forward]
Goodwill, Impaired, Accumulated Impairment Loss	(25,860,000)	(27,904,000)
Goodwill, Acquired During Period	0
Goodwill, Translation and Purchase Accounting Adjustments	(525,000)
MRI [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill, Gross	15,798,000	16,240,000
Finite-lived Intangible Assets [Roll Forward]
Goodwill, Impaired, Accumulated Impairment Loss	(6,341,000)	(6,666,000)
Goodwill, Acquired During Period	0
Goodwill, Translation and Purchase Accounting Adjustments	$ (117,000)