Quarterly report pursuant to Section 13 or 15(d)

Short-Term Notes Payable - Additional Information (Detail)

v3.10.0.1
Short-Term Notes Payable - Additional Information (Detail) - USD ($)
Mar. 10, 2018
Jul. 24, 2017
Mar. 10, 2017
Jul. 24, 2016
Mar. 01, 2016
Jun. 30, 2018
Dec. 31, 2017
Short-term Debt [Line Items]              
Short term notes payable for financing insurance policies           $ 20,912 $ 80,478
Product Liability Insurance Financing [Member] | Short Term Note Payable [Member]              
Short-term Debt [Line Items]              
Debt instrument face amount $ 28,915   $ 31,985   $ 49,395    
Interest rate on short-term note 5.09%   6.18%   5.93%    
Principal and interest first required payment date Apr. 10, 2018   Apr. 10, 2017   Apr. 10, 2016    
Short-term notes payable amortization period 11 months   10 months   10 months    
Final payment date of short-term note payable Feb. 10, 2019   Jan. 02, 2018   Jan. 04, 2017    
Directors' and Officers' Liability Insurance Financing [Member] | Short Term Note Payable [Member]              
Short-term Debt [Line Items]              
Debt instrument face amount   $ 140,062   $ 111,730      
Interest rate on short-term note   5.09%   4.89%      
Principal and interest first required payment date   Aug. 24, 2017   Aug. 24, 2016      
Short-term notes payable amortization period   11 months   11 months      
Final payment date of short-term note payable   Jun. 25, 2018   Jun. 21, 2017