Quarterly report pursuant to Section 13 or 15(d)

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

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Stockholders' Equity - Schedule of Common Stock Reserved for Future Issuance (Parenthetical) (Details) - shares
3 Months Ended
Jan. 01, 2022
Jan. 01, 2021
Mar. 31, 2022
Dec. 31, 2021
Feb. 05, 2021
Class Of Stock [Line Items]          
Treasury stock, shares at cost     541,000 541,000  
2016 Equity Incentive Plan          
Class Of Stock [Line Items]          
Number of authorized shares increased   404,000      
2016 Employee Stock Purchase Plan          
Class Of Stock [Line Items]          
Number of authorized shares increased 100,000        
2021 Inducement Plan          
Class Of Stock [Line Items]          
Number of authorized shares         300,000
Number of shares issued     38,000