3.25.4 html 354 513 1 false 107 0 false 11 false false R1.htm 0000001 - Document - Cover Sheet http://acmrcsh.com/role/Cover Cover Cover 1 false false R2.htm 0000002 - Document - Audit Information Sheet http://acmrcsh.com/role/AuditInformation Audit Information Cover 2 false false R3.htm 9952151 - Statement - Consolidated Balance Sheets Sheet http://acmrcsh.com/role/ConsolidatedBalanceSheets Consolidated Balance Sheets Statements 3 false false R4.htm 9952152 - Statement - Consolidated Statements of Comprehensive Income Sheet http://acmrcsh.com/role/ConsolidatedStatementsofComprehensiveIncome Consolidated Statements of Comprehensive Income Statements 4 false false R5.htm 9952153 - Statement - Consolidated Statements of Comprehensive Income (Parenthetical) Sheet http://acmrcsh.com/role/ConsolidatedStatementsofComprehensiveIncomeParenthetical Consolidated Statements of Comprehensive Income (Parenthetical) Statements 5 false false R6.htm 9952154 - Statement - Consolidated Statement of Changes in Stockholders' Equity Sheet http://acmrcsh.com/role/ConsolidatedStatementofChangesinStockholdersEquity Consolidated Statement of Changes in Stockholders' Equity Statements 6 false false R7.htm 9952155 - Statement - Consolidated Statement of Changes in Stockholders' Equity (Parenthetical) Sheet http://acmrcsh.com/role/ConsolidatedStatementofChangesinStockholdersEquityParenthetical Consolidated Statement of Changes in Stockholders' Equity (Parenthetical) Statements 7 false false R8.htm 9952156 - Statement - Consolidated Statements of Cash Flows Sheet http://acmrcsh.com/role/ConsolidatedStatementsofCashFlows Consolidated Statements of Cash Flows Statements 8 false false R9.htm 9952157 - Disclosure - DESCRIPTION OF BUSINESS Sheet http://acmrcsh.com/role/DESCRIPTIONOFBUSINESS DESCRIPTION OF BUSINESS Notes 9 false false R10.htm 9952158 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Sheet http://acmrcsh.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIES SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Notes 10 false false R11.htm 9952159 - Disclosure - REVENUE FROM CONTRACTS WITH CUSTOMERS Sheet http://acmrcsh.com/role/REVENUEFROMCONTRACTSWITHCUSTOMERS REVENUE FROM CONTRACTS WITH CUSTOMERS Notes 11 false false R12.htm 9952160 - Disclosure - ACCOUNTS RECEIVABLE, NET Sheet http://acmrcsh.com/role/ACCOUNTSRECEIVABLENET ACCOUNTS RECEIVABLE, NET Notes 12 false false R13.htm 9952161 - Disclosure - INVENTORIES, NET Sheet http://acmrcsh.com/role/INVENTORIESNET INVENTORIES, NET Notes 13 false false R14.htm 9952162 - Disclosure - PROPERTY, PLANT AND EQUIPMENT, NET Sheet http://acmrcsh.com/role/PROPERTYPLANTANDEQUIPMENTNET PROPERTY, PLANT AND EQUIPMENT, NET Notes 14 false false R15.htm 9952163 - Disclosure - OTHER LONG-TERM ASSETS Sheet http://acmrcsh.com/role/OTHERLONGTERMASSETS OTHER LONG-TERM ASSETS Notes 15 false false R16.htm 9952164 - Disclosure - SHORT-TERM BORROWINGS Sheet http://acmrcsh.com/role/SHORTTERMBORROWINGS SHORT-TERM BORROWINGS Notes 16 false false R17.htm 9952165 - Disclosure - OTHER PAYABLES AND ACCRUED EXPENSES Sheet http://acmrcsh.com/role/OTHERPAYABLESANDACCRUEDEXPENSES OTHER PAYABLES AND ACCRUED EXPENSES Notes 17 false false R18.htm 9952166 - Disclosure - LONG-TERM BORROWINGS Sheet http://acmrcsh.com/role/LONGTERMBORROWINGS LONG-TERM BORROWINGS Notes 18 false false R19.htm 9952167 - Disclosure - LONG-TERM INVESTMENTS Sheet http://acmrcsh.com/role/LONGTERMINVESTMENTS LONG-TERM INVESTMENTS Notes 19 false false R20.htm 9952168 - Disclosure - SHORT-TERM INVESTMENTS Sheet http://acmrcsh.com/role/SHORTTERMINVESTMENTS SHORT-TERM INVESTMENTS Notes 20 false false R21.htm 9952169 - Disclosure - RELATED PARTY BALANCES AND TRANSACTIONS Sheet http://acmrcsh.com/role/RELATEDPARTYBALANCESANDTRANSACTIONS RELATED PARTY BALANCES AND TRANSACTIONS Notes 21 false false R22.htm 9952170 - Disclosure - COMMON STOCK Sheet http://acmrcsh.com/role/COMMONSTOCK COMMON STOCK Notes 22 false false R23.htm 9952171 - Disclosure - STOCK-BASED COMPENSATION Sheet http://acmrcsh.com/role/STOCKBASEDCOMPENSATION STOCK-BASED COMPENSATION Notes 23 false false R24.htm 9952172 - Disclosure - INCOME TAXES Sheet http://acmrcsh.com/role/INCOMETAXES INCOME TAXES Notes 24 false false R25.htm 9952173 - Disclosure - SEGMENT INFORMATION Sheet http://acmrcsh.com/role/SEGMENTINFORMATION SEGMENT INFORMATION Notes 25 false false R26.htm 9952174 - Disclosure - COMMITMENTS AND CONTINGENCIES Sheet http://acmrcsh.com/role/COMMITMENTSANDCONTINGENCIES COMMITMENTS AND CONTINGENCIES Notes 26 false false R27.htm 9952175 - Disclosure - LEASES Sheet http://acmrcsh.com/role/LEASES LEASES Notes 27 false false R28.htm 9952176 - Disclosure - PARENT COMPANY ONLY CONDENSED FINANCIAL INFORMATION Sheet http://acmrcsh.com/role/PARENTCOMPANYONLYCONDENSEDFINANCIALINFORMATION PARENT COMPANY ONLY CONDENSED FINANCIAL INFORMATION Notes 28 false false R29.htm 9952177 - Disclosure - SUBSEQUENT EVENTS Sheet http://acmrcsh.com/role/SUBSEQUENTEVENTS SUBSEQUENT EVENTS Notes 29 false false R30.htm 995445 - Disclosure - Insider Trading Arrangements Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements Insider Trading Arrangements Notes 30 false false R31.htm 995447 - Disclosure - Insider Trading Policies and Procedures Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingPoliciesProc Insider Trading Policies and Procedures Notes 31 false false R32.htm 995550 - Disclosure - Cybersecurity Risk Management and Strategy Disclosure Sheet http://xbrl.sec.gov/cyd/role/CybersecurityRiskManagementAndStrategyDisclosure Cybersecurity Risk Management and Strategy Disclosure Notes 32 false false R33.htm 9955511 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) Sheet http://acmrcsh.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) Policies 33 false false R34.htm 9955512 - Disclosure - DESCRIPTION OF BUSINESS (Tables) Sheet http://acmrcsh.com/role/DESCRIPTIONOFBUSINESSTables DESCRIPTION OF BUSINESS (Tables) Tables http://acmrcsh.com/role/DESCRIPTIONOFBUSINESS 34 false false R35.htm 9955513 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) Sheet http://acmrcsh.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) Tables http://acmrcsh.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIES 35 false false R36.htm 9955514 - Disclosure - REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables) Sheet http://acmrcsh.com/role/REVENUEFROMCONTRACTSWITHCUSTOMERSTables REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables) Tables http://acmrcsh.com/role/REVENUEFROMCONTRACTSWITHCUSTOMERS 36 false false R37.htm 9955515 - Disclosure - ACCOUNTS RECEIVABLE, NET (Tables) Sheet http://acmrcsh.com/role/ACCOUNTSRECEIVABLENETTables ACCOUNTS RECEIVABLE, NET (Tables) Tables http://acmrcsh.com/role/ACCOUNTSRECEIVABLENET 37 false false R38.htm 9955516 - Disclosure - INVENTORIES, NET (Tables) Sheet http://acmrcsh.com/role/INVENTORIESNETTables INVENTORIES, NET (Tables) Tables http://acmrcsh.com/role/INVENTORIESNET 38 false false R39.htm 9955517 - Disclosure - PROPERTY, PLANT AND EQUIPMENT, NET (Tables) Sheet http://acmrcsh.com/role/PROPERTYPLANTANDEQUIPMENTNETTables PROPERTY, PLANT AND EQUIPMENT, NET (Tables) Tables http://acmrcsh.com/role/PROPERTYPLANTANDEQUIPMENTNET 39 false false R40.htm 9955518 - Disclosure - OTHER LONG-TERM ASSETS (Tables) Sheet http://acmrcsh.com/role/OTHERLONGTERMASSETSTables OTHER LONG-TERM ASSETS (Tables) Tables http://acmrcsh.com/role/OTHERLONGTERMASSETS 40 false false R41.htm 9955519 - Disclosure - OTHER PAYABLES AND ACCRUED EXPENSES (Tables) Sheet http://acmrcsh.com/role/OTHERPAYABLESANDACCRUEDEXPENSESTables OTHER PAYABLES AND ACCRUED EXPENSES (Tables) Tables http://acmrcsh.com/role/OTHERPAYABLESANDACCRUEDEXPENSES 41 false false R42.htm 9955520 - Disclosure - LONG-TERM BORROWINGS (Tables) Sheet http://acmrcsh.com/role/LONGTERMBORROWINGSTables LONG-TERM BORROWINGS (Tables) Tables http://acmrcsh.com/role/LONGTERMBORROWINGS 42 false false R43.htm 9955521 - Disclosure - LONG-TERM INVESTMENTS (Tables) Sheet http://acmrcsh.com/role/LONGTERMINVESTMENTSTables LONG-TERM INVESTMENTS (Tables) Tables http://acmrcsh.com/role/LONGTERMINVESTMENTS 43 false false R44.htm 9955522 - Disclosure - SHORT-TERM INVESTMENTS (Tables) Sheet http://acmrcsh.com/role/SHORTTERMINVESTMENTSTables SHORT-TERM INVESTMENTS (Tables) Tables http://acmrcsh.com/role/SHORTTERMINVESTMENTS 44 false false R45.htm 9955523 - Disclosure - RELATED PARTY BALANCES AND TRANSACTIONS (Tables) Sheet http://acmrcsh.com/role/RELATEDPARTYBALANCESANDTRANSACTIONSTables RELATED PARTY BALANCES AND TRANSACTIONS (Tables) Tables http://acmrcsh.com/role/RELATEDPARTYBALANCESANDTRANSACTIONS 45 false false R46.htm 9955524 - Disclosure - STOCK-BASED COMPENSATION (Tables) Sheet http://acmrcsh.com/role/STOCKBASEDCOMPENSATIONTables STOCK-BASED COMPENSATION (Tables) Tables http://acmrcsh.com/role/STOCKBASEDCOMPENSATION 46 false false R47.htm 9955525 - Disclosure - INCOME TAXES (Tables) Sheet http://acmrcsh.com/role/INCOMETAXESTables INCOME TAXES (Tables) Tables http://acmrcsh.com/role/INCOMETAXES 47 false false R48.htm 9955526 - Disclosure - SEGMENT INFORMATION (Tables) Sheet http://acmrcsh.com/role/SEGMENTINFORMATIONTables SEGMENT INFORMATION (Tables) Tables http://acmrcsh.com/role/SEGMENTINFORMATION 48 false false R49.htm 9955527 - Disclosure - LEASES (Tables) Sheet http://acmrcsh.com/role/LEASESTables LEASES (Tables) Tables http://acmrcsh.com/role/LEASES 49 false false R50.htm 9955528 - Disclosure - PARENT COMPANY ONLY CONDENSED FINANCIAL INFORMATION (Tables) Sheet http://acmrcsh.com/role/PARENTCOMPANYONLYCONDENSEDFINANCIALINFORMATIONTables PARENT COMPANY ONLY CONDENSED FINANCIAL INFORMATION (Tables) Tables http://acmrcsh.com/role/PARENTCOMPANYONLYCONDENSEDFINANCIALINFORMATION 50 false false R51.htm 9955529 - Disclosure - DESCRIPTION OF BUSINESS - Summary Of Subsidiaries (Details) Sheet http://acmrcsh.com/role/DESCRIPTIONOFBUSINESSSummaryOfSubsidiariesDetails DESCRIPTION OF BUSINESS - Summary Of Subsidiaries (Details) Details 51 false false R52.htm 9955530 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Cash and Cash Equivalents (Details) Sheet http://acmrcsh.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESCashandCashEquivalentsDetails SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Cash and Cash Equivalents (Details) Details 52 false false R53.htm 9955531 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Time Deposits (Details) Sheet http://acmrcsh.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTimeDepositsDetails SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Time Deposits (Details) Details 53 false false R54.htm 9955532 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property, Plant and Equipment, Net (Details) Sheet http://acmrcsh.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPropertyPlantandEquipmentNetDetails SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property, Plant and Equipment, Net (Details) Details 54 false false R55.htm 9955533 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Warranty (Details) Sheet http://acmrcsh.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESWarrantyDetails SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Warranty (Details) Details 55 false false R56.htm 9955534 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Employee Benefit Expense (Details) Sheet http://acmrcsh.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESEmployeeBenefitExpenseDetails SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Employee Benefit Expense (Details) Details 56 false false R57.htm 9955535 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Government Subsidies (Details) Sheet http://acmrcsh.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESGovernmentSubsidiesDetails SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Government Subsidies (Details) Details 57 false false R58.htm 9955536 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Basic and Diluted Net Income per Common Share (Details) Sheet http://acmrcsh.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESBasicandDilutedNetIncomeperCommonShareDetails SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Basic and Diluted Net Income per Common Share (Details) Details 58 false false R59.htm 9955537 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Restricted Net Assets (Details) Sheet http://acmrcsh.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESRestrictedNetAssetsDetails SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Restricted Net Assets (Details) Details 59 false false R60.htm 9955538 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Statutory Surplus Reserve (Details) Sheet http://acmrcsh.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESStatutorySurplusReserveDetails SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Statutory Surplus Reserve (Details) Details 60 false false R61.htm 9955539 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Financial Instruments (Details) Sheet http://acmrcsh.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESFinancialInstrumentsDetails SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Financial Instruments (Details) Details 61 false false R62.htm 9955540 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Fair Value of Financial Instruments (Details) Sheet http://acmrcsh.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESFairValueofFinancialInstrumentsDetails SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Fair Value of Financial Instruments (Details) Details 62 false false R63.htm 9955541 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Operating and Financial Risks (Details) Sheet http://acmrcsh.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESOperatingandFinancialRisksDetails SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Operating and Financial Risks (Details) Details 63 false false R64.htm 9955542 - Disclosure - REVENUE FROM CONTRACTS WITH CUSTOMERS - Disaggregated Revenue (Details) Sheet http://acmrcsh.com/role/REVENUEFROMCONTRACTSWITHCUSTOMERSDisaggregatedRevenueDetails REVENUE FROM CONTRACTS WITH CUSTOMERS - Disaggregated Revenue (Details) Details 64 false false R65.htm 9955543 - Disclosure - REVENUE FROM CONTRACTS WITH CUSTOMERS - Accounts Receivables and Contract Liabilities (Details) Sheet http://acmrcsh.com/role/REVENUEFROMCONTRACTSWITHCUSTOMERSAccountsReceivablesandContractLiabilitiesDetails REVENUE FROM CONTRACTS WITH CUSTOMERS - Accounts Receivables and Contract Liabilities (Details) Details 65 false false R66.htm 9955544 - Disclosure - REVENUE FROM CONTRACTS WITH CUSTOMERS - Narrative (Details) Sheet http://acmrcsh.com/role/REVENUEFROMCONTRACTSWITHCUSTOMERSNarrativeDetails REVENUE FROM CONTRACTS WITH CUSTOMERS - Narrative (Details) Details 66 false false R67.htm 9955545 - Disclosure - REVENUE FROM CONTRACTS WITH CUSTOMERS - Revenues Recognized (Details) Sheet http://acmrcsh.com/role/REVENUEFROMCONTRACTSWITHCUSTOMERSRevenuesRecognizedDetails REVENUE FROM CONTRACTS WITH CUSTOMERS - Revenues Recognized (Details) Details 67 false false R68.htm 9955546 - Disclosure - ACCOUNTS RECEIVABLE, NET - Summary of Accounts Receivable (Details) Sheet http://acmrcsh.com/role/ACCOUNTSRECEIVABLENETSummaryofAccountsReceivableDetails ACCOUNTS RECEIVABLE, NET - Summary of Accounts Receivable (Details) Details 68 false false R69.htm 9955547 - Disclosure - ACCOUNTS RECEIVABLE, NET - Summary of Allowance For Doubtful Accounts (Details) Sheet http://acmrcsh.com/role/ACCOUNTSRECEIVABLENETSummaryofAllowanceForDoubtfulAccountsDetails ACCOUNTS RECEIVABLE, NET - Summary of Allowance For Doubtful Accounts (Details) Details 69 false false R70.htm 9955548 - Disclosure - INVENTORIES, NET (Details) Sheet http://acmrcsh.com/role/INVENTORIESNETDetails INVENTORIES, NET (Details) Details http://acmrcsh.com/role/INVENTORIESNETTables 70 false false R71.htm 9955549 - Disclosure - PROPERTY, PLANT AND EQUIPMENT, NET (Details) Sheet http://acmrcsh.com/role/PROPERTYPLANTANDEQUIPMENTNETDetails PROPERTY, PLANT AND EQUIPMENT, NET (Details) Details http://acmrcsh.com/role/PROPERTYPLANTANDEQUIPMENTNETTables 71 false false R72.htm 9955550 - Disclosure - PROPERTY, PLANT AND EQUIPMENT, NET - Narrative (Details) Sheet http://acmrcsh.com/role/PROPERTYPLANTANDEQUIPMENTNETNarrativeDetails PROPERTY, PLANT AND EQUIPMENT, NET - Narrative (Details) Details 72 false false R73.htm 9955551 - Disclosure - OTHER LONG-TERM ASSETS (Details) Sheet http://acmrcsh.com/role/OTHERLONGTERMASSETSDetails OTHER LONG-TERM ASSETS (Details) Details http://acmrcsh.com/role/OTHERLONGTERMASSETSTables 73 false false R74.htm 9955552 - Disclosure - SHORT-TERM BORROWINGS (Details) Sheet http://acmrcsh.com/role/SHORTTERMBORROWINGSDetails SHORT-TERM BORROWINGS (Details) Details http://acmrcsh.com/role/SHORTTERMBORROWINGS 74 false false R75.htm 9955553 - Disclosure - OTHER PAYABLES AND ACCRUED EXPENSES - Other Payables and Accrued Expenses (Details) Sheet http://acmrcsh.com/role/OTHERPAYABLESANDACCRUEDEXPENSESOtherPayablesandAccruedExpensesDetails OTHER PAYABLES AND ACCRUED EXPENSES - Other Payables and Accrued Expenses (Details) Details 75 false false R76.htm 9955554 - Disclosure - LONG-TERM BORROWINGS - Summary of Long Term Borrowings (Details) Sheet http://acmrcsh.com/role/LONGTERMBORROWINGSSummaryofLongTermBorrowingsDetails LONG-TERM BORROWINGS - Summary of Long Term Borrowings (Details) Details 76 false false R77.htm 9955555 - Disclosure - LONG-TERM BORROWINGS - Narrative (Details) Sheet http://acmrcsh.com/role/LONGTERMBORROWINGSNarrativeDetails LONG-TERM BORROWINGS - Narrative (Details) Details 77 false false R78.htm 9955556 - Disclosure - LONG-TERM BORROWINGS - Summary of Scheduled Principal Payments (Details) Sheet http://acmrcsh.com/role/LONGTERMBORROWINGSSummaryofScheduledPrincipalPaymentsDetails LONG-TERM BORROWINGS - Summary of Scheduled Principal Payments (Details) Details 78 false false R79.htm 9955557 - Disclosure - LONG-TERM INVESTMENTS - Schedule of Long Term Investments (Details) Sheet http://acmrcsh.com/role/LONGTERMINVESTMENTSScheduleofLongTermInvestmentsDetails LONG-TERM INVESTMENTS - Schedule of Long Term Investments (Details) Details 79 false false R80.htm 9955558 - Disclosure - LONG-TERM INVESTMENTS - Narrative (Details) Sheet http://acmrcsh.com/role/LONGTERMINVESTMENTSNarrativeDetails LONG-TERM INVESTMENTS - Narrative (Details) Details 80 false false R81.htm 9955559 - Disclosure - LONG-TERM INVESTMENTS - Equity-Method Investees (Details) Sheet http://acmrcsh.com/role/LONGTERMINVESTMENTSEquityMethodInvesteesDetails LONG-TERM INVESTMENTS - Equity-Method Investees (Details) Details 81 false false R82.htm 9955560 - Disclosure - LONG-TERM INVESTMENTS - Available-for-Sale Debt Investments (Details) Sheet http://acmrcsh.com/role/LONGTERMINVESTMENTSAvailableforSaleDebtInvestmentsDetails LONG-TERM INVESTMENTS - Available-for-Sale Debt Investments (Details) Details 82 false false R83.htm 9955561 - Disclosure - SHORT-TERM INVESTMENTS - Narrative (Details) Sheet http://acmrcsh.com/role/SHORTTERMINVESTMENTSNarrativeDetails SHORT-TERM INVESTMENTS - Narrative (Details) Details 83 false false R84.htm 9955562 - Disclosure - SHORT-TERM INVESTMENTS - Summary of Short-term Investments (Details) Sheet http://acmrcsh.com/role/SHORTTERMINVESTMENTSSummaryofShorttermInvestmentsDetails SHORT-TERM INVESTMENTS - Summary of Short-term Investments (Details) Details 84 false false R85.htm 9955563 - Disclosure - SHORT-TERM INVESTMENTS - Summary of Unrealized Gain (Loss) on Trading Securities (Details) Sheet http://acmrcsh.com/role/SHORTTERMINVESTMENTSSummaryofUnrealizedGainLossonTradingSecuritiesDetails SHORT-TERM INVESTMENTS - Summary of Unrealized Gain (Loss) on Trading Securities (Details) Details 85 false false R86.htm 9955564 - Disclosure - RELATED PARTY BALANCES AND TRANSACTIONS (Details) Sheet http://acmrcsh.com/role/RELATEDPARTYBALANCESANDTRANSACTIONSDetails RELATED PARTY BALANCES AND TRANSACTIONS (Details) Details http://acmrcsh.com/role/RELATEDPARTYBALANCESANDTRANSACTIONSTables 86 false false R87.htm 9955565 - Disclosure - COMMON STOCK (Details) Sheet http://acmrcsh.com/role/COMMONSTOCKDetails COMMON STOCK (Details) Details http://acmrcsh.com/role/COMMONSTOCK 87 false false R88.htm 9955566 - Disclosure - STOCK-BASED COMPENSATION - Share Option Activities (Details) Sheet http://acmrcsh.com/role/STOCKBASEDCOMPENSATIONShareOptionActivitiesDetails STOCK-BASED COMPENSATION - Share Option Activities (Details) Details 88 false false R89.htm 9955567 - Disclosure - STOCK-BASED COMPENSATION - Assumptions Used to Determine Fair Value of Share Options Granted (Details) Sheet http://acmrcsh.com/role/STOCKBASEDCOMPENSATIONAssumptionsUsedtoDetermineFairValueofShareOptionsGrantedDetails STOCK-BASED COMPENSATION - Assumptions Used to Determine Fair Value of Share Options Granted (Details) Details 89 false false R90.htm 9955568 - Disclosure - STOCK-BASED COMPENSATION - Stock-based Compensation Expense (Details) Sheet http://acmrcsh.com/role/STOCKBASEDCOMPENSATIONStockbasedCompensationExpenseDetails STOCK-BASED COMPENSATION - Stock-based Compensation Expense (Details) Details 90 false false R91.htm 9955569 - Disclosure - INCOME TAXES - Summary of Income Before Taxes (Details) Sheet http://acmrcsh.com/role/INCOMETAXESSummaryofIncomeBeforeTaxesDetails INCOME TAXES - Summary of Income Before Taxes (Details) Details 91 false false R92.htm 9955570 - Disclosure - INCOME TAXES - Summary of Income Tax Benefit and Expense (Details) Sheet http://acmrcsh.com/role/INCOMETAXESSummaryofIncomeTaxBenefitandExpenseDetails INCOME TAXES - Summary of Income Tax Benefit and Expense (Details) Details 92 false false R93.htm 9955571 - Disclosure - INCOME TAXES - Narrative (Details) Sheet http://acmrcsh.com/role/INCOMETAXESNarrativeDetails INCOME TAXES - Narrative (Details) Details 93 false false R94.htm 9955572 - Disclosure - INCOME TAXES - Summary of Effective Income Tax Rate (Details) Sheet http://acmrcsh.com/role/INCOMETAXESSummaryofEffectiveIncomeTaxRateDetails INCOME TAXES - Summary of Effective Income Tax Rate (Details) Details 94 false false R95.htm 9955573 - Disclosure - INCOME TAXES - Summary of Deferred Tax Assets (Details) Sheet http://acmrcsh.com/role/INCOMETAXESSummaryofDeferredTaxAssetsDetails INCOME TAXES - Summary of Deferred Tax Assets (Details) Details 95 false false R96.htm 9955574 - Disclosure - INCOME TAXES - Summary of Gross Unrecognized Tax Benefits (Details) Sheet http://acmrcsh.com/role/INCOMETAXESSummaryofGrossUnrecognizedTaxBenefitsDetails INCOME TAXES - Summary of Gross Unrecognized Tax Benefits (Details) Details 96 false false R97.htm 9955575 - Disclosure - INCOME TAXES - Income Taxes Paid (Details) Sheet http://acmrcsh.com/role/INCOMETAXESIncomeTaxesPaidDetails INCOME TAXES - Income Taxes Paid (Details) Details 97 false false R98.htm 9955576 - Disclosure - SEGMENT INFORMATION (Details) Sheet http://acmrcsh.com/role/SEGMENTINFORMATIONDetails SEGMENT INFORMATION (Details) Details http://acmrcsh.com/role/SEGMENTINFORMATIONTables 98 false false R99.htm 9955577 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details) Sheet http://acmrcsh.com/role/COMMITMENTSANDCONTINGENCIESDetails COMMITMENTS AND CONTINGENCIES (Details) Details http://acmrcsh.com/role/COMMITMENTSANDCONTINGENCIES 99 false false R100.htm 9955578 - Disclosure - LEASES - Narrative (Details) Sheet http://acmrcsh.com/role/LEASESNarrativeDetails LEASES - Narrative (Details) Details 100 false false R101.htm 9955579 - Disclosure - LEASES - Components of Lease Expense (Details) Sheet http://acmrcsh.com/role/LEASESComponentsofLeaseExpenseDetails LEASES - Components of Lease Expense (Details) Details 101 false false R102.htm 9955580 - Disclosure - LEASES - Operating Lease Supplemental Cash Flow (Details) Sheet http://acmrcsh.com/role/LEASESOperatingLeaseSupplementalCashFlowDetails LEASES - Operating Lease Supplemental Cash Flow (Details) Details 102 false false R103.htm 9955581 - Disclosure - LEASES - Maturities of Operating Leases Outstanding Liabilities (Details) Sheet http://acmrcsh.com/role/LEASESMaturitiesofOperatingLeasesOutstandingLiabilitiesDetails LEASES - Maturities of Operating Leases Outstanding Liabilities (Details) Details 103 false false R104.htm 9955582 - Disclosure - LEASES - Operating Leases Discount Rate And Weighted Average Remaining Term (Details) Sheet http://acmrcsh.com/role/LEASESOperatingLeasesDiscountRateAndWeightedAverageRemainingTermDetails LEASES - Operating Leases Discount Rate And Weighted Average Remaining Term (Details) Details 104 false false R105.htm 9955583 - Disclosure - PARENT COMPANY ONLY CONDENSED FINANCIAL INFORMATION - Condensed Balance Sheets (Details) Sheet http://acmrcsh.com/role/PARENTCOMPANYONLYCONDENSEDFINANCIALINFORMATIONCondensedBalanceSheetsDetails PARENT COMPANY ONLY CONDENSED FINANCIAL INFORMATION - Condensed Balance Sheets (Details) Details 105 false false R106.htm 9955584 - Disclosure - PARENT COMPANY ONLY CONDENSED FINANCIAL INFORMATION - Condensed Statements of Operations (Details) Sheet http://acmrcsh.com/role/PARENTCOMPANYONLYCONDENSEDFINANCIALINFORMATIONCondensedStatementsofOperationsDetails PARENT COMPANY ONLY CONDENSED FINANCIAL INFORMATION - Condensed Statements of Operations (Details) Details 106 false false R107.htm 9955585 - Disclosure - PARENT COMPANY ONLY CONDENSED FINANCIAL INFORMATION - Condensed Statements of Cash Flows (Details) Sheet http://acmrcsh.com/role/PARENTCOMPANYONLYCONDENSEDFINANCIALINFORMATIONCondensedStatementsofCashFlowsDetails PARENT COMPANY ONLY CONDENSED FINANCIAL INFORMATION - Condensed Statements of Cash Flows (Details) Details 107 false false R108.htm 9955586 - Disclosure - SUBSEQUENT EVENTS (Details) Sheet http://acmrcsh.com/role/SUBSEQUENTEVENTSDetails SUBSEQUENT EVENTS (Details) Details http://acmrcsh.com/role/SUBSEQUENTEVENTS 108 false false All Reports Book All Reports acmr-20251231.htm acmr-20251231.xsd acmr-20251231_cal.xml acmr-20251231_def.xml acmr-20251231_lab.xml acmr-20251231_pre.xml acmr-20251231_g1.jpg acmr-20251231_g2.jpg acmr-20251231_g3.jpg acmr-20251231_g4.jpg acmr-20251231_g5.jpg http://fasb.org/srt/2025 http://fasb.org/us-gaap/2025 http://xbrl.sec.gov/cyd/2025 http://xbrl.sec.gov/dei/2025 http://xbrl.sec.gov/ecd/2025 true true