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Other Intangible Assets - Additional Information (Detail) - USD ($)
 3 Months Ended 12 Months Ended
Dec. 31, 2015
Dec. 31, 2015
Dec. 31, 2014
Nov. 30, 2014
Dec. 31, 2013
Acquired Finite-Lived Intangible Assets [Line Items]          
Other intangible assets, net $ 45,816 $ 45,816 $ 356,889    
Impairment amount of intangible asset 239,000 239,000 530,000    
Impairment of intangible asset   239,241   $ 530,100  
Amortization expense   $ 72,000 $ 299,000   $ 269,000
Patents and Licenses [Member]          
Acquired Finite-Lived Intangible Assets [Line Items]          
Impairment of intangible asset $ 239,000