v2.4.0.8
Segment and Geographic Information - Schedule of Sales by Geographic Area (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net sales by geographical area $ 11,865 $ 9,867 $ 8,342 $ 7,821 $ 8,452 $ 5,373 $ 8,111 $ 12,358 $ 37,895 $ 34,294 $ 34,884
Central America [Member]
                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net sales by geographical area                 17,296 11,767 11,755
U.S.-based Distributors Selling to Latin America [Member]
                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net sales by geographical area                 6,422 6,295 5,321
South America [Member]
                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net sales by geographical area                 9,048 8,633 14,813
Asia Pacific [Member]
                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net sales by geographical area                 209 430 908
EMEA [Member]
                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net sales by geographical area                 961 4,799 1,090
Mexico [Member]
                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net sales by geographical area                 2,908 1,960 997
United States [Member]
                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net sales by geographical area                 $ 1,051 $ 410