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Convertible Notes (Details) - USD ($)
$ / shares in Units, $ in Millions
Mar. 17, 2020
Jan. 03, 2020
Convertible Preferred Stock    
Short-term Debt [Line Items]    
Shares issued 2,545,277  
Offering price per share $ 4.712  
Proceeds from issuance of convertible preferred stock, net of issuance costs $ 12.0  
Number of shares debt converted 638,270  
2020 Notes    
Short-term Debt [Line Items]    
Principal amount   $ 3.0
Interest rate   1.21%
Debt converted $ 3.0  
Unamortized debt discount 0.4  
Beneficial conversion feature 2.6 $ 1.1
Gain on extinguishment of the debt $ 1.5