Acquisitions (Details 1) (USD $) In Thousands, unless otherwise specified	0 Months Ended				0 Months Ended
	Feb. 03, 2012 AHN Biotechnologie GmbH Acquisition [Member]	Dec. 31, 2012 AHN Biotechnologie GmbH Acquisition [Member]	Dec. 31, 2012 AHN Biotechnologie GmbH Acquisition [Member] Customer Relationships [Member]	Dec. 31, 2012 AHN Biotechnologie GmbH Acquisition [Member] Trade Names [Member]	May 31, 2012 Modular SFC Acquisition [Member]	May 31, 2012 Modular SFC Acquisition [Member] Unpatented Technology [Member]	May 31, 2012 Modular SFC Acquisition [Member] Customer Relationships [Member]	May 31, 2012 Modular SFC Acquisition [Member] Trade Names [Member]
Business Acquisition [Line Items]
Tangible Assets Acquired		$ 1,500			$ 30
Liabilities Assumed		(1,454)			0
Net Tangible Assets Acquired		46			30
Business Acquisition Purchase Price Allocation Intangible Assets [Abstract]
Purchase Price Allocation, Goodwill Amount		1,308			145
Purchase Price Allocation, Amortizable Intangible Assets			474	180		200	50	95
Business Acquisition Purchase Price Allocation Total Intangible Assets Amount Including Goodwill		1,962			490
Total Acquisition Purchase Price		2,008			520
Business Acquisition, Cost of Acquired Entity 1 [Abstract]
Cash Paid for Acquisition	2,000				500
Business Acquisition, Contingent Consideration, at Fair Value					20
Business Acquisition Cost Of Acquired Entity Purchase Price 1		$ 2,008			$ 520