Annual report pursuant to Section 13 and 15(d)

Restructuring Charges - Schedule of Restructuring Charges (Detail)

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Restructuring Charges - Schedule of Restructuring Charges (Detail) - Symbio Tec Gmbh [Member]
12 Months Ended
Dec. 31, 2012
USD ($)
Restructuring Cost and Reserve [Line Items]  
Restructuring Charges $ 112,000
Facility Closing [Member]  
Restructuring Cost and Reserve [Line Items]  
Restructuring Charges 13,000
Employee Severance [Member]  
Restructuring Cost and Reserve [Line Items]  
Restructuring Charges $ 99,000