Annual report pursuant to Section 13 and 15(d)

Property and Equipment - Additional Information (Detail)

v3.8.0.1
Property and Equipment - Additional Information (Detail) - USD ($)
 1 Months Ended 12 Months Ended
Sep. 30, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Property, Plant and Equipment [Line Items]        
Depreciation   $ 700,000 $ 400,000 $ 26,000
Expected Cost of Construction [1]   3,500,000    
Expected Cost of Equipment   2,500,000    
National Holdings Corporation [Member]        
Property, Plant and Equipment [Line Items]        
Depreciation $ 36,000 $ 400,000    
[1] For build-out of Mustang’s cell processing facility in Worcester, MA. The total cost of the construction for the Worcester facility is expected to be $3.5 million. The cost of the equipment for the facility is expected to be $2.5 million