Goodwill and Other Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 24,048
Translation differences	(644)
Goodwill, ending balance	23,404		24,048
Accumulated impairment loss	0
Schedule of definite-lived intangible assets [Abstract]
Gross Amount beginning of period	11,981	12,189	12,189
Translation differences	(151)		(208)
Gross Amount end of period	11,830		11,981
Accumulated amortization	(3,894)		(3,644)
Net Book Value	7,936		8,337
Amortization expense	300	300
Estimated amortization expense for amortizable intangible assets [Abstract]
Last nine months of 2015	900
2016	1,200
2017	1,200
2018	1,200
2019	1,200
Thereafter	2,236
Net Book Value	7,936		8,337
Trademarks [Member]
Schedule of definite-lived intangible assets [Abstract]
Gross Amount beginning of period	5,692	5,772	5,772
Translation differences	(57)		(80)
Gross Amount end of period	5,635		5,692
Accumulated amortization	(1,855)		(1,731)
Net Book Value	3,780		3,961
Estimated amortization expense for amortizable intangible assets [Abstract]
Net Book Value	3,780		3,961
Customer Relationships [Member]
Schedule of definite-lived intangible assets [Abstract]
Gross Amount beginning of period	6,289	6,417	6,417
Translation differences	(94)		(128)
Gross Amount end of period	6,195		6,289
Accumulated amortization	(2,039)		(1,913)
Net Book Value	4,156		4,376
Estimated amortization expense for amortizable intangible assets [Abstract]
Net Book Value	4,156		4,376
Radiancy, Inc. [Member]
Goodwill [Line Items]
Definite-lived intangible assets recorded as a part of purchase price allocation	12,000
Goodwill [Roll Forward]
Goodwill, ending balance	$ 24,005