Annual report pursuant to Section 13 and 15(d)

Significant Accounting Policies - Additional Information (Detail)

v3.3.1.900
Significant Accounting Policies - Additional Information (Detail)
12 Months Ended
Dec. 31, 2015
USD ($)
Segment
Dec. 31, 2014
USD ($)
Significant Accounting Policies [Line Items]    
Marketable investments $ 0 $ 0
Restricted cash $ 36,375 13,728
Operating segments | Segment 1  
Valuation allowance 100.00%  
Uncertain tax position $ 0 0
Impairment charges $ 0 $ 0
Estimated useful life of all property and equipment 3 years  
Maximum [Member]    
Significant Accounting Policies [Line Items]    
Cash and cash equivalents maturity period 3 months  
Minimum [Member]    
Significant Accounting Policies [Line Items]    
Marketable investments maturity period 3 months