Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details Narrative)

v3.19.2
Commitments and Contingencies (Details Narrative)
3 Months Ended 6 Months Ended
Feb. 26, 2019
USD ($)
ft²
Sep. 20, 2018
USD ($)
Aug. 21, 2017
USD ($)
ft²
Jun. 30, 2019
USD ($)
Sep. 30, 2018
USD ($)
Jun. 30, 2018
USD ($)
Jun. 30, 2019
USD ($)
Jun. 30, 2018
USD ($)
Jan. 02, 2019
USD ($)
Dec. 31, 2018
USD ($)
Commitment And Contingencies [Line Items]                    
Operating lease liability       $ 7,619,563     $ 7,619,563      
Operating lease, right of use asset       5,695,689     5,695,689    
Leasehold improvements reimbursement             990,759      
Total lease expense       307,182   $ 147,752 507,344 $ 294,743    
Research and Development Expense [Member]                    
Commitment And Contingencies [Line Items]                    
Upfront cash payment         $ 250,000          
Potential milestone payments             18,400,000      
ASU 2016-02 [Member]                    
Commitment And Contingencies [Line Items]                    
Operating lease liability                 $ 3,800,000  
Operating lease, right of use asset                 $ 2,400,000  
August 2017 Lease Agreement [Member]                    
Commitment And Contingencies [Line Items]                    
Area of office space | ft²     32,733              
Operating lease, term     7 years              
Leasehold improvements     $ 1,080,189              
Irrevocable letter of credit     400,000              
Unsecured letter of credit     $ 400,000              
Incurred interest expense       $ 2,877   $ 1,774 $ 4,714 $ 3,549    
Percentage of incremental borrowing rate from present value of lease     9.00%              
August 2017 Lease Agreement [Member] | First Year [Member]                    
Commitment And Contingencies [Line Items]                    
Rent expense     $ 470,000              
August 2017 Lease Agreement [Member] | Seventh Year [Member]                    
Commitment And Contingencies [Line Items]                    
Rent expense     908,000              
August 2017 Lease Agreement [Member] | Third Anniversary [Member]                    
Commitment And Contingencies [Line Items]                    
Irrevocable letter of credit     300,000              
August 2017 Lease Agreement [Member] | Fourth Anniversary [Member]                    
Commitment And Contingencies [Line Items]                    
Irrevocable letter of credit     $ 200,000              
February 2019 Lease Agreement [Member]                    
Commitment And Contingencies [Line Items]                    
Irrevocable letter of credit $ 369,900                  
Operating lease liability 855,000                  
Operating lease, right of use asset $ 855,000                  
Percentage of incremental borrowing rate from present value of lease 9.00%                  
Operating lease, extended term 20 months                  
Leasehold improvements reimbursement $ 990,759                  
February 2019 Lease Agreement [Member] | New Premises [Member]                    
Commitment And Contingencies [Line Items]                    
Area of office space | ft² 30,023                  
Operating lease liability $ 2,700,000                  
Operating lease, right of use asset $ 2,700,000                  
February 2019 Lease Agreement [Member] | Total Premises [Member]                    
Commitment And Contingencies [Line Items]                    
Area of office space | ft² 62,756                  
February 2019 Lease Agreement [Member] | Third Anniversary [Member]                    
Commitment And Contingencies [Line Items]                    
Irrevocable letter of credit $ 277,425                  
February 2019 Lease Agreement [Member] | Fourth Anniversary [Member]                    
Commitment And Contingencies [Line Items]                    
Irrevocable letter of credit $ 184,950                  
Jenrin Agreement [Member]                    
Commitment And Contingencies [Line Items]                    
Upfront cash payment   $ 250,000                
Potential milestone payments   $ 18,400,000