<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.19.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>62</ContextCount>
  <ElementCount>228</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>27</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>4</UnitCount>
  <MyReports>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>00000001 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/DocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>00000002 - Statement - CONSOLIDATED BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/ConsolidatedBalanceSheets</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>00000003 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/ConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>00000004 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/ConsolidatedStatementsOfOperations</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF OPERATIONS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>00000005 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/ConsolidatedStatementsOfCashFlows</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CASH FLOWS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>00000006 - Statement - STATEMENTS OF STOCKHOLDERS' DEFICIT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/StatementsOfStockholdersDeficit</Role>
      <ShortName>STATEMENTS OF STOCKHOLDERS' DEFICIT</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>00000007 - Disclosure - 1. SUMMARY OF BUSINESS AND DESCRIPTION OF GOING CONCERN</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/SummaryOfBusinessAndDescriptionOfGoingConcern</Role>
      <ShortName>1. SUMMARY OF BUSINESS AND DESCRIPTION OF GOING CONCERN</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>00000008 - Disclosure - 2. SIGNIFICANT ACCOUNTING POLICIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/SignificantAccountingPolicies</Role>
      <ShortName>2. SIGNIFICANT ACCOUNTING POLICIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>00000009 - Disclosure - 3. PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/PropertyAndEquipmentAndCapitalizedSoftware</Role>
      <ShortName>3. PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>00000010 - Disclosure - 4. INTANGIBLE ASSETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/IntangibleAssets</Role>
      <ShortName>4. INTANGIBLE ASSETS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>00000011 - Disclosure - 5. DEBT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/Debt</Role>
      <ShortName>5. DEBT</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>00000012 - Disclosure - 6. COMMITMENTS AND CONTINGENCIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/CommitmentsAndContingencies</Role>
      <ShortName>6. COMMITMENTS AND CONTINGENCIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>00000013 - Disclosure - 7. STOCKHOLDERS' DEFICIT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/StockholdersDeficit</Role>
      <ShortName>7. STOCKHOLDERS' DEFICIT</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>00000014 - Disclosure - 8. INCOME TAXES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/IncomeTaxes</Role>
      <ShortName>8. INCOME TAXES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>00000015 - Disclosure - 9. MAJOR CUSTOMERS AND CONCENTRATIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/MajorCustomersAndConcentrations</Role>
      <ShortName>9. MAJOR CUSTOMERS AND CONCENTRATIONS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>00000016 - Disclosure - 10. EMPLOYEE BENEFIT PLAN</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/EmployeeBenefitPlan</Role>
      <ShortName>10. EMPLOYEE BENEFIT PLAN</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>00000017 - Disclosure - 11. DISAGGREGATED PRESENTATION OF REVENUE AND OTHER RELEVANT INFORMATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/DisaggregatedPresentationOfRevenueAndOtherRelevantInformation</Role>
      <ShortName>11. DISAGGREGATED PRESENTATION OF REVENUE AND OTHER RELEVANT INFORMATION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>00000018 - Disclosure - 12. SUBSEQUENT EVENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/SubsequentEvents</Role>
      <ShortName>12. SUBSEQUENT EVENTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>00000019 - Disclosure - 2. SIGNIFICANT ACCOUNTING POLICIES (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/SignificantAccountingPoliciesPolicies</Role>
      <ShortName>2. SIGNIFICANT ACCOUNTING POLICIES (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>00000020 - Disclosure - 2. SIGNIFICANT ACCOUNTING POLICIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/SignificantAccountingPoliciesTables</Role>
      <ShortName>2. SIGNIFICANT ACCOUNTING POLICIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://smartonline.com/role/SignificantAccountingPolicies</ParentRole>
      <Position>20</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>00000021 - Disclosure - 3. PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/PropertyAndEquipmentAndCapitalizedSoftwareTables</Role>
      <ShortName>3. PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://smartonline.com/role/PropertyAndEquipmentAndCapitalizedSoftware</ParentRole>
      <Position>21</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>00000022 - Disclosure - 5. DEBT (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/DebtTables</Role>
      <ShortName>5. DEBT (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://smartonline.com/role/Debt</ParentRole>
      <Position>22</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>00000023 - Disclosure - 6. COMMITMENTS AND CONTINGENCIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/CommitmentsAndContingenciesTables</Role>
      <ShortName>6. COMMITMENTS AND CONTINGENCIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://smartonline.com/role/CommitmentsAndContingencies</ParentRole>
      <Position>23</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>00000024 - Disclosure - 7. STOCKHOLDERS' DEFICIT (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/StockholdersDeficitTables</Role>
      <ShortName>7. STOCKHOLDERS' DEFICIT (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://smartonline.com/role/StockholdersDeficit</ParentRole>
      <Position>24</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>00000025 - Disclosure - 8. INCOME TAXES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/IncomeTaxesTables</Role>
      <ShortName>8. INCOME TAXES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://smartonline.com/role/IncomeTaxes</ParentRole>
      <Position>25</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>00000026 - Disclosure - 11. DISAGGREGATED PRESENTATION OF REVENUE AND OTHER RELEVANT INFORMATION (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/DisaggregatedPresentationOfRevenueAndOtherRelevantInformationTables</Role>
      <ShortName>11. DISAGGREGATED PRESENTATION OF REVENUE AND OTHER RELEVANT INFORMATION (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://smartonline.com/role/DisaggregatedPresentationOfRevenueAndOtherRelevantInformation</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>00000027 - Disclosure - 2. SIGNIFICANT ACCOUNTING POLICIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/SignificantAccountingPoliciesDetails</Role>
      <ShortName>2. SIGNIFICANT ACCOUNTING POLICIES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://smartonline.com/role/SignificantAccountingPoliciesTables</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>00000028 - Disclosure - 2. SIGNIFICANT ACCOUNTING POLICIES (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/SignificantAccountingPoliciesDetails1</Role>
      <ShortName>2. SIGNIFICANT ACCOUNTING POLICIES (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://smartonline.com/role/SignificantAccountingPoliciesTables</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>00000029 - Disclosure - 2. SIGNIFICANT ACCOUNTING POLICIES (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/SignificantAccountingPoliciesDetails2</Role>
      <ShortName>2. SIGNIFICANT ACCOUNTING POLICIES (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://smartonline.com/role/SignificantAccountingPoliciesTables</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>00000030 - Disclosure - 2. SIGNIFICANT ACCOUNTING POLICIES (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/SignificantAccountingPoliciesDetails3</Role>
      <ShortName>2. SIGNIFICANT ACCOUNTING POLICIES (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://smartonline.com/role/SignificantAccountingPoliciesTables</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>00000031 - Disclosure - 2. SIGNIFICANT ACCOUNTING POLICIES (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/SignificantAccountingPoliciesDetailsNarrative</Role>
      <ShortName>2. SIGNIFICANT ACCOUNTING POLICIES (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://smartonline.com/role/SignificantAccountingPoliciesTables</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>00000032 - Disclosure - 3. PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/PropertyAndEquipmentAndCapitalizedSoftwareDetails</Role>
      <ShortName>3. PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://smartonline.com/role/PropertyAndEquipmentAndCapitalizedSoftwareTables</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>00000033 - Disclosure - 3. PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/PropertyAndEquipmentAndCapitalizedSoftwareDetails1</Role>
      <ShortName>3. PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://smartonline.com/role/PropertyAndEquipmentAndCapitalizedSoftwareTables</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>00000034 - Disclosure - 3. PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/PropertyAndEquipmentAndCapitalizedSoftwareDetailsNarrative</Role>
      <ShortName>3. PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://smartonline.com/role/PropertyAndEquipmentAndCapitalizedSoftwareTables</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>00000035 - Disclosure - 4. INTANGIBLE ASSETS (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/IntangibleAssetsDetailsNarrative</Role>
      <ShortName>4. INTANGIBLE ASSETS (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://smartonline.com/role/IntangibleAssets</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>00000036 - Disclosure - 5. DEBT (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/DebtDetails</Role>
      <ShortName>5. DEBT (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://smartonline.com/role/DebtTables</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>00000037 - Disclosure - 5. DEBT (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/DebtDetails1</Role>
      <ShortName>5. DEBT (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://smartonline.com/role/DebtTables</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>00000038 - Disclosure - 5. DEBT (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/DebtDetails2</Role>
      <ShortName>5. DEBT (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://smartonline.com/role/DebtTables</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>00000039 - Disclosure - 6. COMMITMENTS AND CONTINGENCIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/CommitmentsAndContingenciesDetails</Role>
      <ShortName>6. COMMITMENTS AND CONTINGENCIES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://smartonline.com/role/CommitmentsAndContingenciesTables</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>00000040 - Disclosure - 6. COMMITMENTS AND CONTINGENCIES (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/CommitmentsAndContingenciesDetailsNarrative</Role>
      <ShortName>6. COMMITMENTS AND CONTINGENCIES (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://smartonline.com/role/CommitmentsAndContingenciesTables</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>00000041 - Disclosure - 7. STOCKHOLDERS' DEFICIT (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/StockholdersDeficitDetails</Role>
      <ShortName>7. STOCKHOLDERS' DEFICIT (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://smartonline.com/role/StockholdersDeficitTables</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>00000042 - Disclosure - 7. STOCKHOLDERS' DEFICIT (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/StockholdersDeficitDetailsNarrative</Role>
      <ShortName>7. STOCKHOLDERS' DEFICIT (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://smartonline.com/role/StockholdersDeficitTables</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>00000043 - Disclosure - 8. INCOME TAXES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/IncomeTaxesDetails</Role>
      <ShortName>8. INCOME TAXES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://smartonline.com/role/IncomeTaxesTables</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>00000044 - Disclosure - 8. INCOME TAXES (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/IncomeTaxesDetails1</Role>
      <ShortName>8. INCOME TAXES (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://smartonline.com/role/IncomeTaxesTables</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>00000045 - Disclosure - 8. INCOME TAXES (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/IncomeTaxesDetailsNarrative</Role>
      <ShortName>8. INCOME TAXES (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://smartonline.com/role/IncomeTaxesTables</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>00000046 - Disclosure - 9. MAJOR CUSTOMERS AND CONCENTRATIONS (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/MajorCustomersAndConcentrationsDetailsNarrative</Role>
      <ShortName>9. MAJOR CUSTOMERS AND CONCENTRATIONS (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://smartonline.com/role/MajorCustomersAndConcentrations</ParentRole>
      <Position>46</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>00000047 - Disclosure - 10. EMPLOYEE BENEFIT PLAN (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/EmployeeBenefitPlanDetailsNarrative</Role>
      <ShortName>10. EMPLOYEE BENEFIT PLAN (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://smartonline.com/role/EmployeeBenefitPlan</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>00000048 - Disclosure - 11. DISAGGREGATED PRESENTATION OF REVENUE AND OTHER RELEVANT INFORMATION (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/DisaggregatedPresentationOfRevenueAndOtherRelevantInformationDetails</Role>
      <ShortName>11. DISAGGREGATED PRESENTATION OF REVENUE AND OTHER RELEVANT INFORMATION (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://smartonline.com/role/DisaggregatedPresentationOfRevenueAndOtherRelevantInformationTables</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="most-20181231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>00000049 - Disclosure - 11. DISAGGREGATED PRESENTATION OF REVENUE AND OTHER RELEVANT INFORMATION (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://smartonline.com/role/DisaggregatedPresentationOfRevenueAndOtherRelevantInformationDetails1</Role>
      <ShortName>11. DISAGGREGATED PRESENTATION OF REVENUE AND OTHER RELEVANT INFORMATION (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://smartonline.com/role/DisaggregatedPresentationOfRevenueAndOtherRelevantInformationTables</ParentRole>
      <Position>49</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>most-20181231.xml</File>
    <File>most-20181231.xsd</File>
    <File>most-20181231_cal.xml</File>
    <File>most-20181231_def.xml</File>
    <File>most-20181231_lab.xml</File>
    <File>most-20181231_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy>http://fasb.org/us-gaap/2018-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.sec.gov/dei/2018-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://fasb.org/srt/2018-01-31</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
