Subsequent Event - Additional Information (Detail) (USD $)
12 Months Ended 0 Months Ended
Dec. 31, 2014
Feb. 23, 2015
Subsequent Event [Line Items]    
Expected lease commencement period 2015-05  
Lease agreement date Feb. 23, 2015  
Subsequent Event [Member]    
Subsequent Event [Line Items]    
Term of lease   61 months
Initial monthly base rent   $ 13,000
Area of leased warehouse distribution facility   14,384