Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Schedule of Common Stock Reserved for Future Issuance (Details)

v3.22.1
Stockholders' Equity - Schedule of Common Stock Reserved for Future Issuance (Details) - shares
Mar. 31, 2022
Dec. 31, 2021
Class Of Stock [Line Items]    
Common stock, reserved for future issuance 3,108,000 2,739,000
Stock Option Awards Issued and Outstanding    
Class Of Stock [Line Items]    
Common stock, reserved for future issuance 2,175,000 2,000,000
Authorized for Grants under the 2016 Equity Incentive Plan    
Class Of Stock [Line Items]    
Common stock, reserved for future issuance [1] 491,000 332,000
Authorized for grants under the 2016 Employee Stock Purchase Plan    
Class Of Stock [Line Items]    
Common stock, reserved for future issuance [2] 395,000 326,000
Authorized for Grants under the Inducement Plan    
Class Of Stock [Line Items]    
Common stock, reserved for future issuance [3] 47,000 81,000
[1] On January 1, 2022, the number of authorized shares in the 2016 Plan increased by 404,000 shares pursuant to the evergreen provisions of the 2016 Plan.
[2] On January 1, 2022, the number of authorized shares in the 2016 Employee Stock Purchase Plan increased by 100,000 shares pursuant to the evergreen provisions of the 2016 Employee Stock Purchase Plan.
[3] On February 5, 2021, 300,000 shares were authorized pursuant to the terms of the Inducement Plan; 38,000 shares were issued under the Inducement Plan during the three months ended March 31, 2022.