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Summary of Significant Accounting Policies - Schedule of Outstanding Shares of Common Stock Equivalents Excluded From Diluted Net Loss Per Share (Details) - shares
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2021
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Convertible Preferred Stock [Member]          
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Shares excluded from computation of diluted net loss per share       2,371,710 2,367,543
Stock Options [Member]          
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Shares excluded from computation of diluted net loss per share 2,919,493 2,919,493 1,166,863 486,755 333,588
Common stock warrant [Member]          
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Shares excluded from computation of diluted net loss per share 8,495,316 8,495,316 1,670,352 620,054 57,473
Common stock issuable pursuant to UPOs          
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Shares excluded from computation of diluted net loss per share 600,000 600,000      
Common stock warrants pursuant to UPOs          
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Shares excluded from computation of diluted net loss per share 300,000 300,000      
Public Rights pursuant to UPOs          
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Shares excluded from computation of diluted net loss per share 60,000 60,000      
Earnout Shares          
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Shares excluded from computation of diluted net loss per share 22,209,280 22,209,280