Stockholders' Equity (Details) $ / shares in Units, $ in Thousands	1 Months Ended			12 Months Ended
	Jun. 30, 2021 USD ($) $ / shares shares	Jan. 31, 2021 USD ($) $ / shares shares	Aug. 31, 2020 USD ($) shares	Dec. 31, 2021 USD ($) Vote $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares	Mar. 31, 2020 USD ($) $ / shares shares
Class of Stock [Line Items]
Preferred stock, shares authorized | shares				10,000,000	10,000,000
Preferred stock, shares outstanding | shares				0	0
Common stock, shares authorized | shares				100,000,000	100,000,000
Common stock, par value (in dollars per share) | $ / shares				$ 0.00001	$ 0.00001
Common stock, shares issued | shares				61,228,446	45,109,314
Common stock, shares outstanding | shares				61,228,446	45,109,314
Number of votes per share | Vote				1
Dividends declared				$ 0
Payments of stock offering costs					$ 211
January 2021 Public Offering
Class of Stock [Line Items]
Shares, issued | shares		6,306,271
Shares issued, price per share | $ / shares		$ 17.50
Aggregate gross proceeds		$ 110,400
Underwriting discounts and commissions		6,600
Payments of stock offering costs		400
Proceeds from common stock		$ 103,300
June 2021 Public Offering
Class of Stock [Line Items]
Shares, issued | shares	8,098,592
Shares issued, price per share | $ / shares	$ 17.75
Aggregate gross proceeds	$ 143,800
Underwriting discounts and commissions	8,600
Payments of stock offering costs	300
Proceeds from common stock	$ 134,900
Lincoln Park Capital Fund, LLC | Purchase Agreement
Class of Stock [Line Items]
Common stock sell			$ 15,000
Purchase agreement term			36 months
Common stock shares issued | shares			121,584
Aggregate fair value			$ 300
Common stock, sold | shares					2,111,170
Proceeds from common stock					$ 7,700
SVB
Class of Stock [Line Items]
Common stock warrants | shares		388,119				460,251
Initial exercise price | $ / shares						$ 0.956
Fair value of warrants						$ 400