Fair Value Measurements - Schedule of Change in Debt Fair Value (Details)	12 Months Ended
Dec. 31, 2022 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loan Received	$ 12,172,969
Accrued interest expense	313,068
Adjustment to Fair Value Mark to Market	(558,206)
Ending Balance	11,927,831
Marathon Convertible Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loan Received	6,000,000
Accrued interest expense	313,068
Adjustment to Fair Value Mark to Market	47,532
Ending Balance	6,360,600
Original Term Loan
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loan Received	6,172,969
Adjustment to Fair Value Mark to Market	(605,738)
Ending Balance	$ 5,567,231

Fair value measurement with unobservable inputs reconciliations recurring basis liability accrued interest expense

No definition available.

Name:	acer_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityAccruedInterestExpense
Namespace Prefix:	acer_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Fair value measurement with unobservable inputs reconciliations recurring basis liability loan received.

+ References

No definition available.

+ Details

Name:	acer_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityLoanReceived
Namespace Prefix:	acer_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of increase (decrease) of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

Name:	us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

- Definition

Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

+ Details

Name:	us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_LongtermDebtTypeAxis=acer_MarathonConvertibleNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=acer_OriginalTermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: