v3.19.1
Geographic Information - Schedule of Sales by Geographical Area (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net sales by geographical area $ 24,177 $ 13,615
Central America [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net sales by geographical area 784 828
South America [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net sales by geographical area 9,571 4,462
Caribbean [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net sales by geographical area 3,940 1,291
Mexico [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net sales by geographical area   17
Canada [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net sales by geographical area   14
United States [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net sales by geographical area 9,874 6,707
EMEA [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net sales by geographical area $ 8 $ 296