XML 71 R51.htm IDEA: XBRL DOCUMENT v3.5.0.2
Accrued Wind-down Expenses - Additional Information (Detail)
 3 Months Ended 6 Months Ended
Jun. 30, 2016
USD ($)
Jun. 30, 2016
USD ($)
Aug. 01, 2016
Employees
Restructuring Cost and Reserve [Line Items]      
Total wind-down expense $ 3,803,448 $ 3,803,448  
Total accrued wind-down expense $ 3,943,310 $ 3,943,310  
Subsequent Events [Member]      
Restructuring Cost and Reserve [Line Items]      
Number of impacted employees due to work force reduction | Employees     50