<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.20.2</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>406</ContextCount>
  <ElementCount>556</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>109</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>9</UnitCount>
  <MyReports>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>00090 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DocumentDocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>00100 - Statement - UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/StatementUnauditedCondensedConsolidatedBalanceSheets</Role>
      <ShortName>UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>00105 - Statement - UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/StatementUnauditedCondensedConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>00200 - Statement - UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/StatementUnauditedCondensedConsolidatedStatementsOfOperationsAndComprehensiveIncomeLoss</Role>
      <ShortName>UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>00300 - Statement - UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/StatementUnauditedCondensedConsolidatedStatementsOfChangesInStockholdersEquity</Role>
      <ShortName>UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>00400 - Statement - UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/StatementUnauditedCondensedConsolidatedStatementsOfCashFlows</Role>
      <ShortName>UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>10101 - Disclosure - ORGANIZATION AND PRINCIPAL ACTITIVIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureOrganizationAndPrincipalActitivies</Role>
      <ShortName>ORGANIZATION AND PRINCIPAL ACTITIVIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>10201 - Disclosure - GOING CONCERN</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureGoingConcern</Role>
      <ShortName>GOING CONCERN</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>10301 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureSummaryOfSignificantAccountingPolicies</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>10401 - Disclosure - DISCONTINUED OPERATIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureDiscontinuedOperations</Role>
      <ShortName>DISCONTINUED OPERATIONS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>10501 - Disclosure - ACCOUNTS RECEIVABLE, NET</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureAccountsReceivableNet</Role>
      <ShortName>ACCOUNTS RECEIVABLE, NET</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>10601 - Disclosure - INVENTORIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureInventories</Role>
      <ShortName>INVENTORIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>10701 - Disclosure - PREPAYMENTS, OTHER RECEIVABLES AND OTHER ASSETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosurePrepaymentsOtherReceivablesAndOtherAssets</Role>
      <ShortName>PREPAYMENTS, OTHER RECEIVABLES AND OTHER ASSETS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>10801 - Disclosure - PROPERTY AND EQUIPMENT, NET</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosurePropertyAndEquipmentNet</Role>
      <ShortName>PROPERTY AND EQUIPMENT, NET</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>10901 - Disclosure - INTANGIBLE ASSETS, NET</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureIntangibleAssetsNet</Role>
      <ShortName>INTANGIBLE ASSETS, NET</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>11001 - Disclosure - BORROWINGS FROM FINANCIAL INSTITUTIONS, CURRENT AND NONCURRENT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureBorrowingsFromFinancialInstitutionsCurrentAndNoncurrent</Role>
      <ShortName>BORROWINGS FROM FINANCIAL INSTITUTIONS, CURRENT AND NONCURRENT</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>11101 - Disclosure - ACCRUED EXPENSES AND OTHER LIABILITIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureAccruedExpensesAndOtherLiabilities</Role>
      <ShortName>ACCRUED EXPENSES AND OTHER LIABILITIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>11201 - Disclosure - EMPLOYEE BENEFIT PLAN</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureEmployeeBenefitPlan</Role>
      <ShortName>EMPLOYEE BENEFIT PLAN</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>11301 - Disclosure - EQUITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureEquity</Role>
      <ShortName>EQUITY</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>11401 - Disclosure - INCOME TAXES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureIncomeTaxes</Role>
      <ShortName>INCOME TAXES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>11501 - Disclosure - RELATED PARTY TRANSACTIONS AND BALANCES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureRelatedPartyTransactionsAndBalances</Role>
      <ShortName>RELATED PARTY TRANSACTIONS AND BALANCES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>11601 - Disclosure - LEASE</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureLease</Role>
      <ShortName>LEASE</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>11701 - Disclosure - COMMITMENTS AND CONTINGENCIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureCommitmentsAndContingencies</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>11801 - Disclosure - SUBSEQUENT EVENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureSubsequentEvents</Role>
      <ShortName>SUBSEQUENT EVENTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>20302 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>30103 - Disclosure - ORGANIZATION AND PRINCIPAL ACTITIVIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureOrganizationAndPrincipalActitiviesTables</Role>
      <ShortName>ORGANIZATION AND PRINCIPAL ACTITIVIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosureOrganizationAndPrincipalActitivies</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>30303 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTables</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosureSummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>30403 - Disclosure - DISCONTINUED OPERATIONS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureDiscontinuedOperationsTables</Role>
      <ShortName>DISCONTINUED OPERATIONS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosureDiscontinuedOperations</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>30503 - Disclosure - ACCOUNTS RECEIVABLE, NET (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureAccountsReceivableNetTables</Role>
      <ShortName>ACCOUNTS RECEIVABLE, NET (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosureAccountsReceivableNet</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>30603 - Disclosure - INVENTORIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureInventoriesTables</Role>
      <ShortName>INVENTORIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosureInventories</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>30703 - Disclosure - PREPAYMENTS, OTHER RECEIVABLES AND OTHER ASSETS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosurePrepaymentsOtherReceivablesAndOtherAssetsTables</Role>
      <ShortName>PREPAYMENTS, OTHER RECEIVABLES AND OTHER ASSETS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosurePrepaymentsOtherReceivablesAndOtherAssets</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>30803 - Disclosure - PROPERTY AND EQUIPMENT, NET (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosurePropertyAndEquipmentNetTables</Role>
      <ShortName>PROPERTY AND EQUIPMENT, NET (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosurePropertyAndEquipmentNet</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>30903 - Disclosure - INTANGIBLE ASSETS, NET (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureIntangibleAssetsNetTables</Role>
      <ShortName>INTANGIBLE ASSETS, NET (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosureIntangibleAssetsNet</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>31103 - Disclosure - ACCRUED EXPENSES AND OTHER LIABILITIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureAccruedExpensesAndOtherLiabilitiesTables</Role>
      <ShortName>ACCRUED EXPENSES AND OTHER LIABILITIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosureAccruedExpensesAndOtherLiabilities</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>31303 - Disclosure - EQUITY (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureEquityTables</Role>
      <ShortName>EQUITY (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosureEquity</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>31403 - Disclosure - INCOME TAXES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureIncomeTaxesTables</Role>
      <ShortName>INCOME TAXES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosureIncomeTaxes</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>31503 - Disclosure - RELATED PARTY TRANSACTIONS AND BALANCES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureRelatedPartyTransactionsAndBalancesTables</Role>
      <ShortName>RELATED PARTY TRANSACTIONS AND BALANCES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosureRelatedPartyTransactionsAndBalances</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>31603 - Disclosure - LEASE (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureLeaseTables</Role>
      <ShortName>LEASE (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosureLease</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>40101 - Disclosure - ORGANIZATION AND PRINCIPAL ACTITIVIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureOrganizationAndPrincipalActitiviesDetails</Role>
      <ShortName>ORGANIZATION AND PRINCIPAL ACTITIVIES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosureOrganizationAndPrincipalActitiviesTables</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>40102 - Disclosure - ORGANIZATION AND PRINCIPAL ACTITIVIES - Consolidated Cash Flow Statement (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureOrganizationAndPrincipalActitiviesConsolidatedCashFlowStatementDetails</Role>
      <ShortName>ORGANIZATION AND PRINCIPAL ACTITIVIES - Consolidated Cash Flow Statement (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>40</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>40103 - Disclosure - ORGANIZATION AND PRINCIPAL ACTITIVIES - Additional information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureOrganizationAndPrincipalActitiviesAdditionalInformationDetails</Role>
      <ShortName>ORGANIZATION AND PRINCIPAL ACTITIVIES - Additional information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>41</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>40201 - Disclosure - GOING CONCERN (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureGoingConcernDetails</Role>
      <ShortName>GOING CONCERN (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosureGoingConcern</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>40301 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Foreign currency translation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureSummaryOfSignificantAccountingPoliciesForeignCurrencyTranslationDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Foreign currency translation (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>43</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>40302 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Fair value on recurring basis (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureSummaryOfSignificantAccountingPoliciesFairValueOnRecurringBasisDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Fair value on recurring basis (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>40303 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Reconciliation of assets and liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureSummaryOfSignificantAccountingPoliciesReconciliationOfAssetsAndLiabilitiesDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Reconciliation of assets and liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>40304 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Fair value of warrants (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureSummaryOfSignificantAccountingPoliciesFairValueOfWarrantsDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Fair value of warrants (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>40305 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Finance lease receivables, net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureSummaryOfSignificantAccountingPoliciesFinanceLeaseReceivablesNetDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Finance lease receivables, net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>47</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>40306 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property and equipment, net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureSummaryOfSignificantAccountingPoliciesPropertyAndEquipmentNetDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property and equipment, net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>48</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>40307 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Intangible assets, net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureSummaryOfSignificantAccountingPoliciesIntangibleAssetsNetDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Intangible assets, net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>49</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>40308 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureSummaryOfSignificantAccountingPoliciesRevenueDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTables</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>40309 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>51</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>40401 - Disclosure - DISCONTINUED OPERATIONS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureDiscontinuedOperationsDetails</Role>
      <ShortName>DISCONTINUED OPERATIONS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosureDiscontinuedOperationsTables</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>40402 - Disclosure - DISCONTINUED OPERATIONS - Carrying amounts of major classes of assets and liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureDiscontinuedOperationsCarryingAmountsOfMajorClassesOfAssetsAndLiabilitiesDetails</Role>
      <ShortName>DISCONTINUED OPERATIONS - Carrying amounts of major classes of assets and liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>53</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>40403 - Disclosure - DISCONTINUED OPERATIONS - Reconciliation of major classes of income and losses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureDiscontinuedOperationsReconciliationOfMajorClassesOfIncomeAndLossesDetails</Role>
      <ShortName>DISCONTINUED OPERATIONS - Reconciliation of major classes of income and losses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>40501 - Disclosure - ACCOUNTS RECEIVABLE, NET (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureAccountsReceivableNetDetails</Role>
      <ShortName>ACCOUNTS RECEIVABLE, NET (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosureAccountsReceivableNetTables</ParentRole>
      <Position>55</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>40502 - Disclosure - ACCOUNTS RECEIVABLE, NET - Allowance for doubtful accounts (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureAccountsReceivableNetAllowanceForDoubtfulAccountsDetails</Role>
      <ShortName>ACCOUNTS RECEIVABLE, NET - Allowance for doubtful accounts (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>56</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>40601 - Disclosure - INVENTORIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureInventoriesDetails</Role>
      <ShortName>INVENTORIES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosureInventoriesTables</ParentRole>
      <Position>57</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>40602 - Disclosure - INVENTORIES - Additional information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureInventoriesAdditionalInformationDetails</Role>
      <ShortName>INVENTORIES - Additional information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>58</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>40701 - Disclosure - PREPAYMENTS, OTHER RECEIVABLES AND OTHER ASSETS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosurePrepaymentsOtherReceivablesAndOtherAssetsDetails</Role>
      <ShortName>PREPAYMENTS, OTHER RECEIVABLES AND OTHER ASSETS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosurePrepaymentsOtherReceivablesAndOtherAssetsTables</ParentRole>
      <Position>59</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>40702 - Disclosure - PREPAYMENTS, OTHER RECEIVABLES AND OTHER ASSETS - Additional information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosurePrepaymentsOtherReceivablesAndOtherAssetsAdditionalInformationDetails</Role>
      <ShortName>PREPAYMENTS, OTHER RECEIVABLES AND OTHER ASSETS - Additional information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>60</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>40801 - Disclosure - PROPERTY AND EQUIPMENT, NET (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosurePropertyAndEquipmentNetDetails</Role>
      <ShortName>PROPERTY AND EQUIPMENT, NET (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosurePropertyAndEquipmentNetTables</ParentRole>
      <Position>61</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>40901 - Disclosure - INTANGIBLE ASSETS, NET (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureIntangibleAssetsNetDetails</Role>
      <ShortName>INTANGIBLE ASSETS, NET (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosureIntangibleAssetsNetTables</ParentRole>
      <Position>62</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>40902 - Disclosure - INTANGIBLE ASSETS, NET - Amortization expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureIntangibleAssetsNetAmortizationExpensesDetails</Role>
      <ShortName>INTANGIBLE ASSETS, NET - Amortization expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>40903 - Disclosure - INTANGIBLE ASSETS, NET - Additional information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureIntangibleAssetsNetAdditionalInformationDetails</Role>
      <ShortName>INTANGIBLE ASSETS, NET - Additional information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>64</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>41001 - Disclosure - BORROWINGS FROM FINANCIAL INSTITUTIONS, CURRENT AND NONCURRENT (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureBorrowingsFromFinancialInstitutionsCurrentAndNoncurrentDetails</Role>
      <ShortName>BORROWINGS FROM FINANCIAL INSTITUTIONS, CURRENT AND NONCURRENT (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosureBorrowingsFromFinancialInstitutionsCurrentAndNoncurrent</ParentRole>
      <Position>65</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>41101 - Disclosure - ACCRUED EXPENSES AND OTHER LIABILITIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureAccruedExpensesAndOtherLiabilitiesDetails</Role>
      <ShortName>ACCRUED EXPENSES AND OTHER LIABILITIES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosureAccruedExpensesAndOtherLiabilitiesTables</ParentRole>
      <Position>66</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>41201 - Disclosure - EMPLOYEE BENEFIT PLAN (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureEmployeeBenefitPlanDetails</Role>
      <ShortName>EMPLOYEE BENEFIT PLAN (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosureEmployeeBenefitPlan</ParentRole>
      <Position>67</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>41301 - Disclosure - EQUITY - IPO Warrants (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureEquityIpoWarrantsDetails</Role>
      <ShortName>EQUITY - IPO Warrants (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>68</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>41302 - Disclosure - EQUITY - Registered Direct Offering Warrants (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureEquityRegisteredDirectOfferingWarrantsDetails</Role>
      <ShortName>EQUITY - Registered Direct Offering Warrants (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>69</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>41303 - Disclosure - EQUITY - Underwriters Warrants (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureEquityUnderwritersWarrantsDetails</Role>
      <ShortName>EQUITY - Underwriters Warrants (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>70</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>41304 - Disclosure - EQUITY - Warrants Outstanding (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureEquityWarrantsOutstandingDetails</Role>
      <ShortName>EQUITY - Warrants Outstanding (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>71</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>41305 - Disclosure - EQUITY - Registered Direct Offering (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureEquityRegisteredDirectOfferingDetails</Role>
      <ShortName>EQUITY - Registered Direct Offering (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>72</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>41306 - Disclosure - EQUITY - Exercise of Warrants - (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureEquityExerciseOfWarrantsDetails</Role>
      <ShortName>EQUITY - Exercise of Warrants - (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>73</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>41307 - Disclosure - EQUITY - Underwritten Public Offering and Exercise of the Over-Allotment Option (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureEquityUnderwrittenPublicOfferingAndExerciseOfOverAllotmentOptionDetails</Role>
      <ShortName>EQUITY - Underwritten Public Offering and Exercise of the Over-Allotment Option (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>74</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>41309 - Disclosure - EQUITY - Common stock issued for consulting services (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureEquityCommonStockIssuedForConsultingServicesDetails</Role>
      <ShortName>EQUITY - Common stock issued for consulting services (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>75</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>41401 - Disclosure - INCOME TAXES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureIncomeTaxesDetails</Role>
      <ShortName>INCOME TAXES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosureIncomeTaxesTables</ParentRole>
      <Position>76</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>41402 - Disclosure - INCOME TAXES - Deferred Tax Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureIncomeTaxesDeferredTaxAssetsDetails</Role>
      <ShortName>INCOME TAXES - Deferred Tax Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>77</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>41403 - Disclosure - INCOME TAXES - Additional information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureIncomeTaxesAdditionalInformationDetails</Role>
      <ShortName>INCOME TAXES - Additional information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>78</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R79.htm</HtmlFileName>
      <LongName>41501 - Disclosure - RELATED PARTY TRANSACTIONS AND BALANCES - Amount due to related parties and affiliates (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureRelatedPartyTransactionsAndBalancesAmountDueToRelatedPartiesAndAffiliatesDetails</Role>
      <ShortName>RELATED PARTY TRANSACTIONS AND BALANCES - Amount due to related parties and affiliates (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>79</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R80.htm</HtmlFileName>
      <LongName>41502 - Disclosure - RELATED PARTY TRANSACTIONS AND BALANCES - Additional information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureRelatedPartyTransactionsAndBalancesAdditionalInformationDetails</Role>
      <ShortName>RELATED PARTY TRANSACTIONS AND BALANCES - Additional information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>80</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R81.htm</HtmlFileName>
      <LongName>41601 - Disclosure - LEASE - Lease expense (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureLeaseLeaseExpenseDetails</Role>
      <ShortName>LEASE - Lease expense (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>81</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R82.htm</HtmlFileName>
      <LongName>41602 - Disclosure - LEASE - Lease obligations in future periods (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureLeaseLeaseObligationsInFuturePeriodsDetails</Role>
      <ShortName>LEASE - Lease obligations in future periods (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>82</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R83.htm</HtmlFileName>
      <LongName>41603 - Disclosure - LEASE - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureLeaseAdditionalInformationDetails</Role>
      <ShortName>LEASE - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>83</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R84.htm</HtmlFileName>
      <LongName>41701 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureCommitmentsAndContingenciesDetails</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ihongsen.com/role/DisclosureCommitmentsAndContingencies</ParentRole>
      <Position>84</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R85.htm</HtmlFileName>
      <LongName>41801 - Disclosure - SUBSEQUENT EVENTS - Exercise of Warrants (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureSubsequentEventsExerciseOfWarrantsDetails</Role>
      <ShortName>SUBSEQUENT EVENTS - Exercise of Warrants (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>85</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R86.htm</HtmlFileName>
      <LongName>41802 - Disclosure - SUBSEQUENT EVENTS - Acquisition of a subsidiary (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureSubsequentEventsAcquisitionOfSubsidiaryDetails</Role>
      <ShortName>SUBSEQUENT EVENTS - Acquisition of a subsidiary (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>86</Position>
    </Report>
    <Report instance="aihs-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R87.htm</HtmlFileName>
      <LongName>41803 - Disclosure - SUBSEQUENT EVENTS - Issuance of RSU (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ihongsen.com/role/DisclosureSubsequentEventsIssuanceOfRsuDetails</Role>
      <ShortName>SUBSEQUENT EVENTS - Issuance of RSU (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>87</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>aihs-20200930.xml</File>
    <File>aihs-20200930.xsd</File>
    <File>aihs-20200930_cal.xml</File>
    <File>aihs-20200930_def.xml</File>
    <File>aihs-20200930_lab.xml</File>
    <File>aihs-20200930_pre.xml</File>
  </InputFiles>
  <SupplementalFiles>
    <File>tm2035820-1_10qimg001.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy>http://xbrl.sec.gov/dei/2020-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://fasb.org/srt/2020-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://fasb.org/us-gaap/2020-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.sec.gov/country/2020-01-31</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
