Quarterly report pursuant to Section 13 or 15(d)

Property and Equipment - Additional Information (Detail)

v3.5.0.2
Property and Equipment - Additional Information (Detail) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
Jan. 31, 2016
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Property Plant And Equipment [Line Items]          
Depreciation   $ 82,000 $ 5,000 $ 86,000 $ 11,000
Leasehold Improvements [Member]          
Property Plant And Equipment [Line Items]          
Impairment of Long-Lived Assets Held-for-use $ 12,000