v2.4.0.8
Geographic Information - Schedule of Sales by Geographical Area (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales by geographical area $ 9,867 $ 5,373 $ 26,030 $ 25,842
Central America [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales by geographical area 2,600 1,636 11,474 6,228
South America [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales by geographical area 3,864 1,883 7,220 7,925
Mexico [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales by geographical area 803 78 1,136 1,647
U.S.- based Latin American distributors [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales by geographical area 2,195 1,075 5,189 4,859
United States [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales by geographical area 67 41 643 118
Europe, Middle East and Africa ("EMEA") [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales by geographical area 202 507 219 4,636
Asia Pacific ("APAC") [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales by geographical area $ 136 $ 153 $ 149 $ 429