Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Commitments - Additional Information (Detail)

v3.5.0.2
Commitments - Additional Information (Detail) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2016
Jun. 30, 2015
Contractual Obligation [Line Items]      
Agreement for purchase of equipment   $ 2,585,000 $ 3,400,000
Laboratory and Computer Equipment [Member]      
Contractual Obligation [Line Items]      
Agreement for purchase of equipment $ 2,200,000 $ 2,400,000  
Interest rate 1.40% 1.40%  
Laboratory and Computer Equipment [Member] | 36 Month Term [Member]      
Contractual Obligation [Line Items]      
Lease term period   36 months  
Buyout option $ 1.00 $ 1.00  
Interest rate 13.70% 13.70%