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Notes Payable (Details) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
May 31, 2022
May 31, 2021
Apr. 30, 2019
Feb. 28, 2019
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Sep. 30, 2021
May 31, 2020
Notes Payable (Details) [Line Items]                      
Debt issuance costs             $ 30,000 $ 471,000      
Minimum cash balance for loan covenant   $ 5,000,000.0                  
2019 MD Loan [Member]                      
Notes Payable (Details) [Line Items]                      
Term loan       $ 500,000              
Interest rate       8.00%              
Phantom shares, description       The 2019 MD Loan established “Phantom Shares” at issuance based on 119,907 shares of Common Stock.              
Interest income (expense)           $ 200,000   (300,000)      
Interest expense         $ 10,000   20,000        
2019 Cecil Loan [Member]                      
Notes Payable (Details) [Line Items]                      
Term loan     $ 100,000                
Interest rate     8.00%                
Phantom shares, description     The 2019 Cecil Loan established “Phantom Shares” at issuance based on 23,981 shares of Common Stock.                
Interest income (expense)           36,000   (54,000)      
Interest expense         $ 2,000   $ 4,000        
PPP Note [Member]                      
Notes Payable (Details) [Line Items]                      
Note payable                     $ 600,000
2021 Avenue Loan [Member] | Notes Payable [Member]                      
Notes Payable (Details) [Line Items]                      
Term loan   30,000,000.0                  
Interest rate         11.35%   11.35%   9.85%    
Interest expense         $ 700,000 200,000 $ 1,500,000 200,000      
Accrued debt issuance costs   600,000                  
Amortization of Debt Issuance Costs   $ 46,951                  
Conditions for future funding, description   Funding of Tranche 2 is subject to (a) our receipt of $5.0 million financing through the state of Maryland; (b) our achievement of a statistically significant result in certain clinical trials (“Performance Milestone 1”); (c) our receipt of net proceeds of at least $30.0 million from the sale and issuance of our equity securities between May 2, 2021 and December 31, 2022; and (d) mutual agreement of us and Avenue.                  
Rate of interest, description             The 2021 Avenue Loan bears interest at a variable rate equal to the sum of (i) the greater of (a) the prime rate or (b) 3.25%, plus (ii) 6.60%. As of June 30, 2022 and December 31, 2021, the interest rate was 11.35% and 9.85%, respectively.        
Additional payment upon maturity, description             On the maturity date, an additional payment equal to 4.25% of the funded loans, currently equal to $0.9 million (the “Final Payment”), is due in addition to the remaining unpaid principal and accrued interest.        
Additional final payment at debt maturity   $ 900,000                  
Minimum funding from maryland state incentive program   5,000,000.0                  
Equity offering proceeds required for tranche 2 funding   $ 30,000,000.0                  
Warrant to purchase shares (in Shares)   115,851                  
Common stock at an exercise price (in Dollars per share)   $ 8.63                  
Tranche warrant adjustment description   Upon the funding of Tranche 2, the Avenue Warrant shall be adjusted to include an additional estimated 245,832 shares of Common Stock, which is equal to 5% of the principal amount of Tranche 2, divided by the five (5)-day VWAP per share as of the end of trading on the last trading day before the issuance of Tranche 2.                  
Convertible note payable         5,000,000.0   $ 5,000,000.0   $ 5,000,000.0    
Minimum cash balance for loan covenant   $ 5,000,000.0                  
Equity offering proceeds required to remove financial covenants   30,000,000.0                  
Conversion feature             $ 5,000,000.0        
Conversion percentage of common stock price for convertible note payable             120.00%        
Convertible note issuable shares             482,703        
Unamortized debt discount and issuance costs         300,000   $ 300,000   $ 400,000    
Amortization of debt discount         100,000 23,000 100,000 23,000      
Interest expense         200,000 100,000 400,000 100,000      
Coupon interest expense         $ 100,000 $ 100,000 $ 300,000 $ 100,000      
Debt Instrument, Interest Rate, Effective Percentage         16.95% 17.93% 16.95% 17.93%      
Fair value of warrant   1,500,000                  
Financing costs   500,000                  
2021 Avenue Loan [Member] | Tranche one [Member]                      
Notes Payable (Details) [Line Items]                      
First loan amount   20,000,000.0                  
Funded amount   15,000,000.0                  
Additional funded amount                   $ 5,000,000.0  
2021 Avenue Loan [Member] | Tranche Two [Member]                      
Notes Payable (Details) [Line Items]                      
Unfunded amount   10,000,000.0                  
2022 MD Loan Member                      
Notes Payable (Details) [Line Items]                      
Term loan $ 3,000,000.0                    
Interest rate 6.00%                    
Interest expense         $ 2,000   $ 2,000        
Debt issuance costs $ 31,000                    
Monthly installments of principal and interest amount   33,306                  
Line of Credit Facility, Current Borrowing Capacity         $ 700,000   $ 700,000        
2022 MD Loan Member | Maximum [Member]                      
Notes Payable (Details) [Line Items]                      
Installment interest amount   $ 15,000,000