Quarterly report pursuant to Section 13 or 15(d)

Organization and Summary of Significant Accounting Policies - Additional Information (Details)

v3.21.1
Organization and Summary of Significant Accounting Policies - Additional Information (Details)
3 Months Ended
Mar. 31, 2021
USD ($)
segment
Dec. 31, 2020
USD ($)
Schedule of Organization and Summary of Significant Accounting Policies    
Number of Operating Segments | segment 1  
Cash and cash equivalents $ 11,629,000 $ 5,413,000
Warrant liabilities 0  
Fair Value, Recurring | Money Market Funds    
Schedule of Organization and Summary of Significant Accounting Policies    
Cash and cash equivalents 10,700,000 $ 5,100,000
October 2020 Offering    
Schedule of Organization and Summary of Significant Accounting Policies    
Cash and cash equivalents $ 11,600,000