Quarterly report pursuant to Section 13 or 15(d)

Segment Information - Additional Information (Detail)

v3.5.0.2
Segment Information - Additional Information (Detail) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Segment Reporting Information [Line Items]        
Sales Revenue, Goods, Net $ 429,000 $ 0 $ 1,793,000 $ 0
Customer One [Member]        
Segment Reporting Information [Line Items]        
Sales Revenue, Goods, Net 200,000   800,000  
Accounts Receivable, Net 100,000   100,000  
Customer Two [Member]        
Segment Reporting Information [Line Items]        
Sales Revenue, Goods, Net 43,000   300,000  
Accounts Receivable, Net 71,000   71,000  
Customer Three [Member]        
Segment Reporting Information [Line Items]        
Sales Revenue, Goods, Net     300,000  
Accounts Receivable, Net $ 50,000   $ 50,000