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Property and Equipment - Summary of Property and Equipment (Detail) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 544 $ 433
Less Accumulated Depreciation 388 296
Total 156 137
Machinery and Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 322 275
Tooling, Molds and Software [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 58 56
Furniture and Fixtures [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 164 $ 102