Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Additional Information (Details)

v3.8.0.1
Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Mar. 31, 2018
Mar. 31, 2018
Dec. 31, 2017
Mar. 31, 2018
Sep. 30, 2018
Schedule Of Significant Accounting Policies [Line Items]          
Offering costs charged to stockholders' equity upon completion of offering       $ 3,252,058  
Number of shares of common stock underlying restricted stock award subject to forfeiture 65,000        
Unrecognized tax benefits $ 0 $ 0   0  
Amount accrued for payment of interest and penalties 0 $ 0   0  
U.S. Statutory tax rate   21.00% 35.00%    
Scenario Plan          
Schedule Of Significant Accounting Policies [Line Items]          
U.S. Statutory tax rate         24.25%
Offering and Private Placement | Warrants          
Schedule Of Significant Accounting Policies [Line Items]          
Warrants sold to purchase common stock $ 11,154,942 $ 11,154,942   $ 11,154,942  
Offering and Private Placement | Rights          
Schedule Of Significant Accounting Policies [Line Items]          
Rights sold for conversion into common stock 1,487,326