Quarterly report pursuant to Section 13 or 15(d)

Concentrations - Additional Information (Detail)

v3.2.0.727
Concentrations - Additional Information (Detail) - Customer
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Sales Revenue, Net          
Concentration Risk [Line Items]          
Number of customers which represented more than 10% of the Company's revenue 0 0 0 0  
Account Receivable          
Concentration Risk [Line Items]          
Number of customers which represented more than 10% of the Company's accounts receivable     0   0