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Debt - Additional Information (Details) - USD ($)
3 Months Ended 6 Months Ended
Mar. 14, 2022
Mar. 04, 2022
Jun. 30, 2022
Mar. 31, 2022
Jun. 30, 2022
Dec. 31, 2021
Debt Instrument [Line Items]            
Cash and cash equivalents     $ 14,469,744   $ 14,469,744 $ 12,710,762
Proceeds allocated to SWK Warrant       $ 327,031    
Debt issuance costs incurred         1,200,000  
SWK Warrant            
Debt Instrument [Line Items]            
Fair value of warrant     300,000   300,000  
Bridge Loan            
Debt Instrument [Line Items]            
Fair value of loan     6,200,000   6,200,000  
Event of Positive Safety            
Debt Instrument [Line Items]            
Cash and cash equivalents     2,000,000.0   2,000,000.0  
Financial Advisor            
Debt Instrument [Line Items]            
Debt issuance costs incurred         700,000  
SWK and Holders            
Debt Instrument [Line Items]            
Debt issuance costs incurred         500,000  
Bridge Loan | Non-Operating Income            
Debt Instrument [Line Items]            
Reduction in the fair value of debt     (2,100,000)   (2,100,000)  
Secured Convertible Notes | Non-Operating Income            
Debt Instrument [Line Items]            
Reduction in the fair value of debt     (2,700,000)   (1,700,000)  
Term Loan | Financial Advisor            
Debt Instrument [Line Items]            
Payment for funding fee for services         700,000  
Bridge Loan and Convertible Note Financing | Financial Advisor            
Debt Instrument [Line Items]            
Payment for funding fee for services         500,000  
SWK Credit Agreement | Lenders Party and SWK | Event of Positive Safety            
Debt Instrument [Line Items]            
Cash and cash equivalents     $ 2,000,000.0   2,000,000.0  
SWK Credit Agreement | Bridge Loan            
Debt Instrument [Line Items]            
Principal amortization payments         $ 1,900,000  
SWK Credit Agreement | Bridge Loan | Lenders Party and SWK            
Debt Instrument [Line Items]            
Debt instrument, principal amount   $ 6,500,000        
Debt instrument, interest rate     12.00%   12.00%  
Debt instrument, interest rate, increase   3.00%        
Debt instrument, maturity date, description         The final maturity date of the Bridge Loan is (a) if full approval by FDA for marketing of the Company’s product known as ACER-001 (sodium phenylbutyrate) (“ACER-001 Approval”) occurs on or before September 30, 2022, then the date which is 12 business days after ACER-001 Approval, or (b) if ACER-001 Approval does not occur on or before September 30, 2022, then March 4, 2024.  
Minimum cash balance required by the loan covenants     $ 4,000,000.0   $ 4,000,000.0  
Origination fees $ 100,000          
SWK Credit Agreement | Bridge Loan | Lenders Party and SWK | SWK Warrant            
Debt Instrument [Line Items]            
Warrant issued to purchase common stock   150,000        
Warrant, exercise price   $ 2.46        
Proceeds allocated to SWK Warrant   $ 300,000        
SWK Credit Agreement | Bridge Loan | Lenders Party and SWK | Minimum [Member]            
Debt Instrument [Line Items]            
Number of days required for cash balance         20 days  
SWK Credit Agreement | Bridge Loan | Lenders Party and SWK | If ACER-001 Approval does not Occur on or Before September 30, 2022            
Debt Instrument [Line Items]            
Debt instrument, maturity date   Mar. 04, 2024        
Debt instrument repayment percentage on outstanding principal plus any and all paid-in-kind interest amount   150.00%        
SWK Credit Agreement | Bridge Loan | Lenders Party and SWK | If ACER-001 Approval Occur on or Before September 30, 2022            
Debt Instrument [Line Items]            
Debt instrument repayment percentage on outstanding principal plus any and all paid-in-kind interest amount   130.00%        
SWK Credit Agreement | Bridge Loan | Lenders Party and SWK | Remainder of the Time Till Bridge Loan is Outstanding            
Debt Instrument [Line Items]            
Minimum cash balance required by the loan covenants     $ 6,500,000   $ 6,500,000  
SWK Credit Agreement | Bridge Loan | Lenders Party and SWK | LIBOR            
Debt Instrument [Line Items]            
Debt instrument, description of variable rate basis         3-month LIBOR  
Debt instrument, interest rate   1.00%        
Debt instrument, basis spread on variable rate   11.00%        
Debt instrument, periodic payment, principal   $ 700,000        
Debt instrument, frequency of periodic payment         quarterly  
Loan repayment commencing date   Nov. 15, 2022        
Secured Convertible Note Purchase Agreement | Secured Convertible Notes | MAM Aardvark, LLC and Marathon Healthcare Finance Fund, L.P.            
Debt Instrument [Line Items]            
Debt instrument, principal amount   $ 6,000,000.0        
Debt instrument, interest rate   6.50%        
Debt instrument, interest rate, increase   11.50%        
Debt instrument, frequency of periodic payment         quarterly  
Conversion price   $ 2.50        
Marathon Credit Agreement | Term Loan | Lender Party and Marathon            
Debt Instrument [Line Items]            
Debt instrument, principal amount   $ 42,500,000        
Debt instrument, interest rate   13.50%        
Debt instrument, frequency of periodic payment         quarterly  
Debt instrument, maturity date, description         The final maturity date of the Term Loan would be the earlier of six years after the Term Loan Funding Date or December 31, 2028.  
Debt instrument, maturity date   Dec. 31, 2028        
Commitment fee percentage on term loan amount   1.50%        
Line of credit facility, maximum borrowing capacity   $ 92,500,000        
Line of credit facility, additional borrowing capacity   $ 50,000,000.0        
Percentage of option to capitalize 4.00%          
Debt instrument amortization percentage   2.78%        
Percentage of prepayment, prior to March 4, 2025   5.00%        
Percentage of prepayment, on or after March 4, 2025, but prior to March 4, 2026   3.00%        
Percentage of prepayment, on or after March 4, 2026, but prior to March 4, 2027   2.00%        
Percentage of prepayment, on or after March 4, 2027   1.00%        
Payment for commitment fees   $ 200,000        
Payment for additional commitment fees   $ 600,000        
Percentage of aggregate revenue as royalty payments   2.00%        
Royalty payments on aggregate revenue cap amount   $ 15,000,000.0