3.23.1 html 1 24 1 false 0 0 false 0 false false R1.htm 100000 - Document - Document and Entity Information Sheet http://www.acertx.com/20230321/taxonomy/role/DocumentDocumentAndEntityInformation Document and Entity Information Cover 1 false false All Reports Book All Reports [dqc-0036-Document-Period-End-Date-Context-Fact-Value-Check] The ending date of 2023-03-21 used for DocumentPeriodEndDate must be the same as the Document Period End Date, 2023-05-01. The properties of this DocumentPeriodEndDate fact are Context: C_5098dcfb-2915-454b-87e2-eb9a50298514, Rule Element Id: 1. acer-20230321.htm 124 acer-20230321.htm acer-20230321.xsd acer-20230321_lab.xml acer-20230321_pre.xml acer-ex99_1.htm http://xbrl.sec.gov/dei/2022 true false