Quarterly report pursuant to Section 13 or 15(d)

Management's Plans - Additional Information (Detail)

v3.10.0.1
Management's Plans - Additional Information (Detail)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2018
USD ($)
Jun. 30, 2017
USD ($)
Jun. 30, 2018
USD ($)
Jun. 30, 2017
USD ($)
Dec. 31, 2017
USD ($)
Employee
shares
Dec. 31, 2018
Employee
Financial Support For Nonconsolidated Legal Entity [Line Items]            
Cumulative operating losses $ 10,000,000   $ 10,000,000      
Gain (loss) on litigation 405,000 $ (505,000) 405,000 $ (505,000)    
Number of full time employees | Employee         19  
Promissory Notes [Member]            
Financial Support For Nonconsolidated Legal Entity [Line Items]            
Repayments of notes payable including accrued interest and other costs         $ 4,720,860  
Debt Instrument, due         2018-04  
Repayments of notes payable, in exchange of common shares | shares         2,953,189  
Repayments of notes         $ 717,500  
Senior Secured Convertible Note [Member]            
Financial Support For Nonconsolidated Legal Entity [Line Items]            
Principal amount $ 500,000   500,000      
Scenario, Forecast [Member]            
Financial Support For Nonconsolidated Legal Entity [Line Items]            
Number of full time employees | Employee           10
Litigation Reversal [Member]            
Financial Support For Nonconsolidated Legal Entity [Line Items]            
Gain (loss) on litigation     405,000      
Insurance Reimbursement for Legal Fees [Member]            
Financial Support For Nonconsolidated Legal Entity [Line Items]            
Gain (loss) on litigation     $ 200,000