Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Additional Information (Details)

v3.10.0.1
Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2018
Dec. 31, 2017
Sep. 30, 2018
Sep. 30, 2018
Schedule Of Significant Accounting Policies [Line Items]        
Offering costs charged to stockholders' equity upon completion of offering       $ 3,252,059
Number of shares of common stock underlying restricted stock award subject to forfeiture 60,000      
Unrecognized tax benefits $ 0   $ 0 0
Amount accrued for payment of interest and penalties 0   $ 0 $ 0
U.S. Statutory tax rate   35.00% 21.00% 24.30%
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