Annual report pursuant to Section 13 and 15(d)

Related Party Transactions (Additional Information) (Detail)

v3.19.1
Related Party Transactions (Additional Information) (Detail) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Related Party Transactions Additional Information [Line Items]      
Related Party Transaction, Rate 8.00%    
Due to Officers or Stockholders $ 0 $ 327,469 $ 648,720
Interest Expense, Related Party 0 171,435 141,645
Officer [Member]      
Related Party Transactions Additional Information [Line Items]      
Interest Expense, Related Party $ 17,894 $ 52,221 $ 43,844