Segment and Geographic Information - Schedule of Sales by Geographical Area (Detail) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net sales by geographical area $ 8,615 $ 8,989 $ 12,126 $ 9,410 $ 10,192 $ 12,179 $ 10,945 $ 14,517 $ 39,140 $ 47,833 $ 48,144
Central America [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net sales by geographical area                 10,883 8,223 15,887
South America [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net sales by geographical area                 4,849 9,879 12,767
Mexico [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net sales by geographical area                 15,128 13,339 8,063
U.S.-based Latin American Distributors [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net sales by geographical area                 6,992 11,853 7,240
United States [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net sales by geographical area                 1,276 4,511 2,582
Europe, Middle East and Africa ("EMEA") [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net sales by geographical area                     1,530
Asia Pacific ("APAC") [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net sales by geographical area                 $ 12 $ 28 $ 75