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, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales by geographical area $ 8,138 $ 9,867 $ 30,207 $ 26,030
Central America [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales by geographical area 2,186 2,600 10,229 11,474
South America [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales by geographical area 1,952 3,864 9,049 7,220
Mexico [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales by geographical area 1,053 803 2,219 1,136
U.S.-based Latin American distributors [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales by geographical area 1,967 2,195 5,501 5,189
United States [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales by geographical area 874 67 1,765 643
Europe, Middle East and Africa ("EMEA") [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales by geographical area 106 202 1,388 219
Asia Pacific ("APAC") [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales by geographical area   $ 136 $ 56 $ 149