Quarterly report pursuant to Section 13 or 15(d)

2018 Stock Option and Grant Plan - Summary of Stock Option Activity (Details)

v3.19.3
2018 Stock Option and Grant Plan - Summary of Stock Option Activity (Details) - Stock Options - 2018 Plan - USD ($)
$ / shares in Units, $ in Thousands
9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Number of Shares    
Number of Shares, Beginning Balance 971,353  
Number of Shares, Granted 988,058 0
Number of Shares, Forfeited (17,000)  
Number of Shares, Ending Balance 1,942,411  
Number of Shares, Options Exercisable 108,378  
Weighted Average Exercise Price    
Weighted Average Exercise Price, Beginning Balance $ 1.01  
Weighted Average Exercise Price, Granted 7.11  
Weighted Average Exercise Price, Forfeited 1.01  
Weighted Average Exercise Price, Ending Balance 4.11  
Weighted Average Exercise Price, Options Exercisable $ 2.36  
Weighted Average Remaining Contractual Term (years)    
Term (years) 9 years 2 months 12 days  
Weighted Average Remaining Contractual Term (years), Options Exercisable 6 years 2 months 12 days  
Aggregate Intrinsic Value    
Aggregate Intrinsic Value, Ending Balance $ 10,547  
Aggregate Intrinsic Value, Options Exercisable $ 778