Quarterly report pursuant to Section 13 or 15(d)

Organization and Nature of Operations - Additional Information (Details)

v3.20.1
Organization and Nature of Operations - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]      
Common stock, par value $ 0.0001   $ 0.0001
Common stock, shares authorized 300,000,000   300,000,000
Preferred stock, par value $ 0.0001   $ 0.0001
Preferred stock, shares authorized 10,000,000   10,000,000
Accumulated deficit $ 124,858   $ 117,157
Net cash used in operating activities 7,043 $ 8,944 $ 33,200
Cash equivalents and short-term investments $ 23,400