v2.4.0.8
Geographic Information - Schedule of Sales by Geographical Area (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales by geographical area $ 10,445 $ 8,342 $ 22,069 $ 16,163
Central America [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales by geographical area 4,205 3,960 8,042 8,875
South America [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales by geographical area 2,470 2,159 7,097 3,355
Mexico [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales by geographical area 940 228 1,167 333
U.S.-based Latin American distributors [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales by geographical area 1,740 1,545 3,534 2,995
United States [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales by geographical area 727 424 891 576
Europe, Middle East and Africa ("EMEA") [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales by geographical area 353 14 1,282 17
Asia Pacific ("APAC") [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales by geographical area $ 10 $ 12 $ 56 $ 12