Nature of Operations and Basis of Presentation - Additional Information (Details) - USD ($)														1 Months Ended		3 Months Ended			9 Months Ended	12 Months Ended		34 Months Ended
	Jul. 15, 2023	Jun. 15, 2023	May 30, 2023	May 15, 2023	Apr. 01, 2023	Jan. 30, 2023	Mar. 14, 2022	Mar. 04, 2022	Mar. 19, 2021	Jan. 25, 2021	Apr. 30, 2020	Mar. 18, 2020	Nov. 09, 2018	May 15, 2023	May 15, 2023	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Sep. 30, 2022	Dec. 31, 2022	Dec. 31, 2021	Mar. 31, 2023	Jun. 30, 2023	May 31, 2023	May 12, 2023	Jan. 31, 2023	Dec. 29, 2022	Aug. 19, 2022
Organization Consolidation and Presentation of Financial Statement [Line Items]
Accumulated deficit																$ 157,027,975	$ 140,747,269			$ 140,747,269		$ 157,027,975
Cash and cash equivalents																6,379,977	2,329,218			2,329,218		6,379,977
Net cash used in operating activities																(9,017,890)		$ (3,013,255)
Reimbursement payment									$ 14,000,000.0
Development payments									10,000,000.0
Threshold equity value as per Nasdaq capital market listing standards																2,500,000
Threshold market value as per Nasdaq capital market listing standards																35,000,000
Threshold net income from continuing operations as per Nasdaq capital market listing standards																500,000
Threshold number of business days for market value of listed securities																			30 days
Threshold number of calendar days to regain compliance																			180 days
Current liabilities																38,000,318	18,951,700			18,951,700		38,000,318
Deferred collaboration funding, current																2,890,097	8,412,971			$ 8,412,971		2,890,097
Threshold bid price per share for continued listing on nasdaq																											$ 1.00
Lincoln Park
Organization Consolidation and Presentation of Financial Statement [Line Items]
Issuance of common stock, net of issuance costs, shares																				772,057
Proceeds from issuance of common stock gross																				$ 1,100,000		4,000,000.0
Collaboration Agreement | Relief Therapeutics Holding AG
Organization Consolidation and Presentation of Financial Statement [Line Items]
Cash payment received									10,000,000.0												$ 10,000,000.0
Repayment of outstanding balance of prior loan and interest									4,000,000.0	$ 4,000,000.0
Reimbursement payment									14,000,000.0	$ 14,000,000.0
Development payments									$ 20,000,000.0
Net profit split ratio based on territory									60.00%	60.00%
Net profit split ratio										60%:40%
Percentage of royalty net sales received									15.00%	15.00%
Milestone payment to be received									$ 6,000,000.0	$ 6,000,000.0
SWK Credit Agreement | Lenders Party and SWK Funding LLC | SOFR
Organization Consolidation and Presentation of Financial Statement [Line Items]
Debt instrument, periodic payment, principal						$ 600,000										600,000	$ 1,300,000
SWK Credit Agreement | Bridge Loan | Lenders Party and SWK Funding LLC | If ACER-001 Approval does not Occur on or Before September 30, 2022
Organization Consolidation and Presentation of Financial Statement [Line Items]
Debt instrument repayment percentage on outstanding principal amount								150.00%
SWK Credit Agreement | Second Term Loan | Lenders Party and SWK Funding LLC
Organization Consolidation and Presentation of Financial Statement [Line Items]
Minimum cash balance required by the loan covenants						$ 1,500,000										3,000,000.0						3,000,000.0
SWK Credit Agreement | Second Term Loan | Lenders Party and SWK Funding LLC | Scenario Forecast
Organization Consolidation and Presentation of Financial Statement [Line Items]
Principal amortization payments		$ 600,000
SWK Credit Agreement | Second Term Loan | Lenders Party and SWK Funding LLC | Repayment Occurs On Or After April 16, 2023 But Prior to May 16, 2023
Organization Consolidation and Presentation of Financial Statement [Line Items]
Debt instrument repayment percentage on outstanding principal amount						1.28667%
SWK Credit Agreement | Second Term Loan | Lenders Party and SWK Funding LLC | Repayment Occurs On Or After May 16, 2023 But Prior to June 16, 2023
Organization Consolidation and Presentation of Financial Statement [Line Items]
Debt instrument repayment percentage on outstanding principal amount						1.39334%
SWK Credit Agreement | Second Term Loan | Lenders Party and SWK Funding LLC | Repayment Occurs On Or After June 16, 2023
Organization Consolidation and Presentation of Financial Statement [Line Items]
Debt instrument repayment percentage on outstanding principal amount						1.50%
SWK Credit Agreement | Second Term Loan | Lenders Party and SWK Funding LLC | Subsequent Event
Organization Consolidation and Presentation of Financial Statement [Line Items]
Principal amortization payments				$ 600,000
SWK Credit Agreement | Second Term Loan | Original Term Loan And Swk Loans
Organization Consolidation and Presentation of Financial Statement [Line Items]
Debt instrument, principal amount																										$ 7,000,000.0
SWK Credit Agreement | Third Term Loan | Lenders Party and SWK Funding LLC
Organization Consolidation and Presentation of Financial Statement [Line Items]
Minimum cash balance required by the loan covenants																$ 3,000,000.0						3,000,000.0
SWK Credit Agreement | Third Term Loan | Lenders Party and SWK Funding LLC | Scenario Forecast
Organization Consolidation and Presentation of Financial Statement [Line Items]
Principal amortization payments	$ 500,000	$ 600,000
Minimum cash balance required by the loan covenants			$ 1,750,000																				$ 1,250,000	$ 1,250,000
SWK Credit Agreement | Third Term Loan | Lenders Party and SWK Funding LLC | Subsequent Event
Organization Consolidation and Presentation of Financial Statement [Line Items]
Principal amortization payments				$ 600,000
Minimum cash balance required by the loan covenants			$ 1,750,000																					$ 1,250,000	$ 3,000,000.0
SWK Credit Agreement | Original Term Loan | Lenders Party and SWK Funding LLC
Organization Consolidation and Presentation of Financial Statement [Line Items]
Debt instrument, principal amount								$ 6,500,000
Debt instrument, interest rate, increase						3.00%
Origination fees							$ 100,000
Warrant issued to purchase common stock						250,000		150,000																				100,000
Warrant, exercise price						$ 2.39		$ 2.46																				$ 1.51
SWK Credit Agreement | Original Term Loan | Lenders Party and SWK Funding LLC | If ACER-001 Approval does not Occur on or Before December 31, 2022
Organization Consolidation and Presentation of Financial Statement [Line Items]
Debt instrument, maturity date						Mar. 04, 2024
Debt instrument repayment percentage on outstanding principal amount						150.00%
SWK Credit Agreement | Original Term Loan | Lenders Party and SWK Funding LLC | SOFR
Organization Consolidation and Presentation of Financial Statement [Line Items]
Debt instrument, interest rate						1.00%
Debt instrument, basis spread on variable rate						11.00%
Marathon Credit Agreement | Term Loan | Lender Party and Marathon
Organization Consolidation and Presentation of Financial Statement [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								Dec. 31, 2028
Termination agreement date								Jan. 30, 2023
Marathon Credit Agreement | Marathon Convertible Notes | Subsequent Event
Organization Consolidation and Presentation of Financial Statement [Line Items]
Termination agreement date															Jan. 30, 2023
Marathon Convertible Note Purchase Agreement | Marathon Convertible Notes | MAM Aardvark, LLC and Marathon Healthcare Finance Fund, L.P.
Organization Consolidation and Presentation of Financial Statement [Line Items]
Debt instrument, principal amount								$ 6,000,000.0
Debt instrument, interest rate								6.50%
Debt instrument, frequency of periodic payment																quarterly
Conversion price								$ 2.50
Number of business days for repurchase of convertible note						5 days
Increase in Buy-Out percentage						0.2500
Number of business days for payment in full of all senior indebtedness						5 days
Buy-Out percentage			212.50%			200.00%
Minimum | Marathon Convertible Note Purchase Agreement | Marathon Convertible Notes | MAM Aardvark, LLC and Marathon Healthcare Finance Fund, L.P.
Organization Consolidation and Presentation of Financial Statement [Line Items]
Gross Proceeds from Issuance or Sale of Equity Debt Hybrid Securities loans or Other Financing						$ 40,000,000.0
Weighted Average | Lincoln Park
Organization Consolidation and Presentation of Financial Statement [Line Items]
Issuance of common stock, gross sale price per share																				$ 1.42
Maximum
Organization Consolidation and Presentation of Financial Statement [Line Items]
Public float																$ 75,000,000						75,000,000
Maximum | Lincoln Park
Organization Consolidation and Presentation of Financial Statement [Line Items]
Shares value might be issued under agreement											$ 15,000,000.0
Maximum | Collaboration Agreement | Relief Therapeutics Holding AG
Organization Consolidation and Presentation of Financial Statement [Line Items]
Development payments									$ 20,000,000.0	$ 20,000,000.0
Maximum | SWK Credit Agreement | Lenders Party and SWK Funding LLC | SOFR
Organization Consolidation and Presentation of Financial Statement [Line Items]
Debt instrument, periodic payment, principal						$ 1,300,000
At-the-Market Facility
Organization Consolidation and Presentation of Financial Statement [Line Items]
Remained available under facility																29,400,000		$ 29,400,000				29,400,000
Common stock offering costs																$ 100,000
Issuance of common stock, net of issuance costs, shares																1,462,254		0
Proceeds from issuance of common stock, net of issuance costs																$ 4,000,000.0
Proceeds from issuance of common stock gross																$ 4,100,000						$ 20,600,000
At-the-Market Facility | Subsequent Event
Organization Consolidation and Presentation of Financial Statement [Line Items]
Common stock offering costs					$ 14,000									$ 14,000
Issuance of common stock, net of issuance costs, shares					456,886									456,886	456,886
Proceeds from issuance of common stock, net of issuance costs					$ 300,000									$ 300,000	$ 300,000
Proceeds from issuance of common stock gross					$ 400,000									$ 400,000
Issuance of common stock, net price per share				$ 0.7635										$ 0.7635	$ 0.7635
At-the-Market Facility | Weighted Average
Organization Consolidation and Presentation of Financial Statement [Line Items]
Issuance of common stock, gross sale price per share																$ 2.8095
At-the-Market Facility | Weighted Average | Subsequent Event
Organization Consolidation and Presentation of Financial Statement [Line Items]
Issuance of common stock, gross sale price per share					$ 0.7912									$ 0.7912
At-the-Market Facility | Maximum
Organization Consolidation and Presentation of Financial Statement [Line Items]
Aggregate offering price of common stock												$ 50,000,000.0	$ 50,000,000.0