The Company and Nature of Business (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended	12 Months Ended
	Oct. 31, 2020	Mar. 31, 2020	Dec. 31, 2020
First follow-on public offering
Subsidiary, Sale of Stock [Line Items]
Net proceeds from sale of stock		$ 63.0
Number of shares issued (in shares)		2,490,053
Public offering price (in dollars per share)		$ 21.50
Allocated public offering costs		$ 0.4
First follow-on public offering and secondary offering
Subsidiary, Sale of Stock [Line Items]
Number of shares in transaction, including shares in secondary offering (in shares)		4,300,000
Underwriters option
Subsidiary, Sale of Stock [Line Items]
Number of shares issued (in shares)	478,507	645,000
Second follow-on public offering
Subsidiary, Sale of Stock [Line Items]
Net proceeds from sale of stock	$ 71.6
Number of shares issued (in shares)	3,000,000
Public offering price (in dollars per share)	$ 22.00
Secondary offering by selling shareholders
Subsidiary, Sale of Stock [Line Items]
Number of shares issued (in shares)	190,053
Public offering price (in dollars per share)	$ 22.00
Allocated public offering costs			$ 0.2