<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.10.0.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>237</ContextCount>
  <ElementCount>303</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>103</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>5</UnitCount>
  <MyReports>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>000 - Document - Document And Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-document-and-entity-information</Role>
      <ShortName>Document And Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>001 - Statement - Condensed Consolidated Balance Sheets (Current Period Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-condensed-consolidated-balance-sheets-current-period-unaudited</Role>
      <ShortName>Condensed Consolidated Balance Sheets (Current Period Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>002 - Statement - Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-condensed-consolidated-balance-sheets-current-period-unaudited-parentheticals</Role>
      <ShortName>Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>003 - Statement - Condensed Consolidated Statements of Operations (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-condensed-consolidated-statements-of-operations-unaudited</Role>
      <ShortName>Condensed Consolidated Statements of Operations (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>004 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-condensed-consolidated-statements-of-cash-flows-unaudited</Role>
      <ShortName>Condensed Consolidated Statements of Cash Flows (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>005 - Disclosure - Note 1 - Description of Business and Basis of Presentation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-1-description-of-business-and-basis-of-presentation</Role>
      <ShortName>Note 1 - Description of Business and Basis of Presentation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>006 - Disclosure - Note 2 - Summary of Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-2-summary-of-significant-accounting-policies</Role>
      <ShortName>Note 2 - Summary of Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>007 - Disclosure - Note 3 - Revenues</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-3-revenues</Role>
      <ShortName>Note 3 - Revenues</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>008 - Disclosure - Note 4 - Acquisitions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-4-acquisitions</Role>
      <ShortName>Note 4 - Acquisitions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>009 - Disclosure - Note 5 - Intangible Assets and Goodwill</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-5-intangible-assets-and-goodwill</Role>
      <ShortName>Note 5 - Intangible Assets and Goodwill</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>010 - Disclosure - Note 6 - Accrued Expenses</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-6-accrued-expenses</Role>
      <ShortName>Note 6 - Accrued Expenses</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>011 - Disclosure - Note 7 - Warranty Reserve</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-7-warranty-reserve</Role>
      <ShortName>Note 7 - Warranty Reserve</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>012 - Disclosure - Note 8 - Convertible Debentures and Notes Payable</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-8-convertible-debentures-and-notes-payable</Role>
      <ShortName>Note 8 - Convertible Debentures and Notes Payable</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>013 - Disclosure - Note 9 - Stockholders' Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-9-stockholders-equity</Role>
      <ShortName>Note 9 - Stockholders' Equity</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>014 - Disclosure - Note 10 - Stock-based Compensation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-10-stockbased-compensation</Role>
      <ShortName>Note 10 - Stock-based Compensation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>015 - Disclosure - Note 11 - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-11-commitments-and-contingencies</Role>
      <ShortName>Note 11 - Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>016 - Disclosure - Note 12 - Concentrations of Credit Risk</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-12-concentrations-of-credit-risk</Role>
      <ShortName>Note 12 - Concentrations of Credit Risk</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>017 - Disclosure - Note 13 - Related Party Transactions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-13-related-party-transactions</Role>
      <ShortName>Note 13 - Related Party Transactions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>018 - Disclosure - Note 14 - Business Segment Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-14-business-segment-information</Role>
      <ShortName>Note 14 - Business Segment Information</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>019 - Disclosure - Note 15 - Subsequent Events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-15-subsequent-events</Role>
      <ShortName>Note 15 - Subsequent Events</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>020 - Disclosure - Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-significant-accounting-policies-policies</Role>
      <ShortName>Significant Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://www.solbrightgroup.com/20180831/role/statement-note-2-summary-of-significant-accounting-policies</ParentRole>
      <Position>21</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>021 - Disclosure - Note 2 - Summary of Significant Accounting Policies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-2-summary-of-significant-accounting-policies-tables</Role>
      <ShortName>Note 2 - Summary of Significant Accounting Policies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.solbrightgroup.com/20180831/role/statement-note-2-summary-of-significant-accounting-policies</ParentRole>
      <Position>22</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>022 - Disclosure - Note 3 - Revenues (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-3-revenues-tables</Role>
      <ShortName>Note 3 - Revenues (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.solbrightgroup.com/20180831/role/statement-note-3-revenues</ParentRole>
      <Position>23</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>023 - Disclosure - Note 4 - Acquisitions (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-4-acquisitions-tables</Role>
      <ShortName>Note 4 - Acquisitions (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.solbrightgroup.com/20180831/role/statement-note-4-acquisitions</ParentRole>
      <Position>24</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>024 - Disclosure - Note 5 - Intangible Assets and Goodwill (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-5-intangible-assets-and-goodwill-tables</Role>
      <ShortName>Note 5 - Intangible Assets and Goodwill (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.solbrightgroup.com/20180831/role/statement-note-5-intangible-assets-and-goodwill</ParentRole>
      <Position>25</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>025 - Disclosure - Note 6 - Accrued Expenses (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-6-accrued-expenses-tables</Role>
      <ShortName>Note 6 - Accrued Expenses (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.solbrightgroup.com/20180831/role/statement-note-6-accrued-expenses</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>026 - Disclosure - Note 7 - Warranty Reserve (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-7-warranty-reserve-tables</Role>
      <ShortName>Note 7 - Warranty Reserve (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.solbrightgroup.com/20180831/role/statement-note-7-warranty-reserve</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>027 - Disclosure - Note 8 - Convertible Debentures and Notes Payable (Tables)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-8-convertible-debentures-and-notes-payable-tables</Role>
      <ShortName>Note 8 - Convertible Debentures and Notes Payable (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.solbrightgroup.com/20180831/role/statement-note-8-convertible-debentures-and-notes-payable</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>028 - Disclosure - Note 10 - Stock-based Compensation (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-10-stockbased-compensation-tables</Role>
      <ShortName>Note 10 - Stock-based Compensation (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.solbrightgroup.com/20180831/role/statement-note-10-stockbased-compensation</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>029 - Disclosure - Note 11 - Commitments and Contingencies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-11-commitments-and-contingencies-tables</Role>
      <ShortName>Note 11 - Commitments and Contingencies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.solbrightgroup.com/20180831/role/statement-note-11-commitments-and-contingencies</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>030 - Disclosure - Note 12 - Concentrations of Credit Risk (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-12-concentrations-of-credit-risk-tables</Role>
      <ShortName>Note 12 - Concentrations of Credit Risk (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.solbrightgroup.com/20180831/role/statement-note-12-concentrations-of-credit-risk</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>031 - Disclosure - Note 14 - Business Segment Information (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-14-business-segment-information-tables</Role>
      <ShortName>Note 14 - Business Segment Information (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.solbrightgroup.com/20180831/role/statement-note-14-business-segment-information</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>032 - Disclosure - Note 1 - Description of Business and Basis of Presentation (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-1-description-of-business-and-basis-of-presentation-details-textual</Role>
      <ShortName>Note 1 - Description of Business and Basis of Presentation (Details Textual)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.solbrightgroup.com/20180831/role/statement-note-1-description-of-business-and-basis-of-presentation</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>033 - Disclosure - Note 2 - Summary of Significant Accounting Policies (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-2-summary-of-significant-accounting-policies-details-textual</Role>
      <ShortName>Note 2 - Summary of Significant Accounting Policies (Details Textual)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.solbrightgroup.com/20180831/role/statement-note-2-summary-of-significant-accounting-policies-tables</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>034 - Disclosure - Note 2 - Summary of Significant Accounting Policies - Antidilutive Securities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-2-summary-of-significant-accounting-policies-antidilutive-securities-details</Role>
      <ShortName>Note 2 - Summary of Significant Accounting Policies - Antidilutive Securities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>35</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>035 - Disclosure - Note 3 - Revenues (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-3-revenues-details-textual</Role>
      <ShortName>Note 3 - Revenues (Details Textual)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.solbrightgroup.com/20180831/role/statement-note-3-revenues-tables</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>036 - Disclosure - Note 3 - Revenues - Impact of New Standard on Condensed Consolidated Balance Sheet (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-3-revenues-impact-of-new-standard-on-condensed-consolidated-balance-sheet-details</Role>
      <ShortName>Note 3 - Revenues - Impact of New Standard on Condensed Consolidated Balance Sheet (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>37</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>037 - Disclosure - Note 4 - Acquisitions - Pro Forma Information (Unaudited) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-4-acquisitions-pro-forma-information-unaudited-details</Role>
      <ShortName>Note 4 - Acquisitions - Pro Forma Information (Unaudited) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>38</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>038 - Disclosure - Note 5 - Intangible Assets and Goodwill (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-5-intangible-assets-and-goodwill-details-textual</Role>
      <ShortName>Note 5 - Intangible Assets and Goodwill (Details Textual)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.solbrightgroup.com/20180831/role/statement-note-5-intangible-assets-and-goodwill-tables</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>039 - Disclosure - Note 5 - Intangible Assets and Goodwill - Schedule of Goodwill (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-5-intangible-assets-and-goodwill-schedule-of-goodwill-details</Role>
      <ShortName>Note 5 - Intangible Assets and Goodwill - Schedule of Goodwill (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>40</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>040 - Disclosure - Note 5 - Intangible Assets and Goodwill - Schedule of Intangible Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-5-intangible-assets-and-goodwill-schedule-of-intangible-assets-details</Role>
      <ShortName>Note 5 - Intangible Assets and Goodwill - Schedule of Intangible Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>41</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>041 - Disclosure - Note 6 - Accrued Expenses - Accounts Payable and Accrued Expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-6-accrued-expenses-accounts-payable-and-accrued-expenses-details</Role>
      <ShortName>Note 6 - Accrued Expenses - Accounts Payable and Accrued Expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>42</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>042 - Disclosure - Note 7 - Warranty Reserve (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-7-warranty-reserve-details-textual</Role>
      <ShortName>Note 7 - Warranty Reserve (Details Textual)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.solbrightgroup.com/20180831/role/statement-note-7-warranty-reserve-tables</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>043 - Disclosure - Note 7 - Warranty Reserve - Warranty Reserve (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-7-warranty-reserve-warranty-reserve-details</Role>
      <ShortName>Note 7 - Warranty Reserve - Warranty Reserve (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>044 - Disclosure - Note 8 - Convertible Debentures and Notes Payable (Details Textual)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-8-convertible-debentures-and-notes-payable-details-textual</Role>
      <ShortName>Note 8 - Convertible Debentures and Notes Payable (Details Textual)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.solbrightgroup.com/20180831/role/statement-note-8-convertible-debentures-and-notes-payable-tables</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>045 - Disclosure - Note 8 - Convertible Debentures and Notes Payable - Convertible Debentures (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-8-convertible-debentures-and-notes-payable-convertible-debentures-details</Role>
      <ShortName>Note 8 - Convertible Debentures and Notes Payable - Convertible Debentures (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>046 - Disclosure - Note 8 - Convertible Debentures and Notes Payable - Convertible Debentures (Details) (Parentheticals)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-8-convertible-debentures-and-notes-payable-convertible-debentures-details-parentheticals</Role>
      <ShortName>Note 8 - Convertible Debentures and Notes Payable - Convertible Debentures (Details) (Parentheticals)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>47</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>047 - Disclosure - Note 8 - Convertible Debentures and Notes Payable - Notes Payable (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-8-convertible-debentures-and-notes-payable-notes-payable-details</Role>
      <ShortName>Note 8 - Convertible Debentures and Notes Payable - Notes Payable (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>48</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>048 - Disclosure - Note 8 - Convertible Debentures and Notes Payable - Notes Payable (Details) (Parentheticals)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-8-convertible-debentures-and-notes-payable-notes-payable-details-parentheticals</Role>
      <ShortName>Note 8 - Convertible Debentures and Notes Payable - Notes Payable (Details) (Parentheticals)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>49</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>049 - Disclosure - Note 9 - Stockholders' Equity (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-9-stockholders-equity-details-textual</Role>
      <ShortName>Note 9 - Stockholders' Equity (Details Textual)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.solbrightgroup.com/20180831/role/statement-note-9-stockholders-equity</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>050 - Disclosure - Note 10 - Stock-based Compensation (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-10-stockbased-compensation-details-textual</Role>
      <ShortName>Note 10 - Stock-based Compensation (Details Textual)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.solbrightgroup.com/20180831/role/statement-note-10-stockbased-compensation-tables</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>051 - Disclosure - Note 10 - Stock-based Compensation - Summary of Stock Option Activity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-10-stockbased-compensation-summary-of-stock-option-activity-details</Role>
      <ShortName>Note 10 - Stock-based Compensation - Summary of Stock Option Activity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>52</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>052 - Disclosure - Note 10 - Stock-based Compensation - Summary of Information Related to Options by Exercise Price Range (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-10-stockbased-compensation-summary-of-information-related-to-options-by-exercise-price-range-details</Role>
      <ShortName>Note 10 - Stock-based Compensation - Summary of Information Related to Options by Exercise Price Range (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>53</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>053 - Disclosure - Note 10 - Stock-based Compensation - Summary of Warrant Activity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-10-stockbased-compensation-summary-of-warrant-activity-details</Role>
      <ShortName>Note 10 - Stock-based Compensation - Summary of Warrant Activity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>054 - Disclosure - Note 10 - Stock-based Compensation - Summary of Information Related to Warrants Outstanding and Exercisable by Exercise Price Range (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-10-stockbased-compensation-summary-of-information-related-to-warrants-outstanding-and-exercisable-by-exercise-price-range-details</Role>
      <ShortName>Note 10 - Stock-based Compensation - Summary of Information Related to Warrants Outstanding and Exercisable by Exercise Price Range (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>55</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>055 - Disclosure - Note 11 - Commitments and Contingencies (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-11-commitments-and-contingencies-details-textual</Role>
      <ShortName>Note 11 - Commitments and Contingencies (Details Textual)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.solbrightgroup.com/20180831/role/statement-note-11-commitments-and-contingencies-tables</ParentRole>
      <Position>56</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>056 - Disclosure - Note 11 - Commitments and Contingencies - Future Minimum Rental Commitments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-11-commitments-and-contingencies-future-minimum-rental-commitments-details</Role>
      <ShortName>Note 11 - Commitments and Contingencies - Future Minimum Rental Commitments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>57</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>057 - Disclosure - Note 12 - Concentrations of Credit Risk (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-12-concentrations-of-credit-risk-details-textual</Role>
      <ShortName>Note 12 - Concentrations of Credit Risk (Details Textual)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.solbrightgroup.com/20180831/role/statement-note-12-concentrations-of-credit-risk-tables</ParentRole>
      <Position>58</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>058 - Disclosure - Note 12 - Concentrations of Credit Risk - Concentrations of Credit Risk (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-12-concentrations-of-credit-risk-concentrations-of-credit-risk-details</Role>
      <ShortName>Note 12 - Concentrations of Credit Risk - Concentrations of Credit Risk (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>59</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>059 - Disclosure - Note 14 - Business Segment Information (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-14-business-segment-information-details-textual</Role>
      <ShortName>Note 14 - Business Segment Information (Details Textual)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.solbrightgroup.com/20180831/role/statement-note-14-business-segment-information-tables</ParentRole>
      <Position>60</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>060 - Disclosure - Note 14 - Business Segment Information - Operating Results for Business Segments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-14-business-segment-information-operating-results-for-business-segments-details</Role>
      <ShortName>Note 14 - Business Segment Information - Operating Results for Business Segments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>61</Position>
    </Report>
    <Report instance="sbrt-20180831.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>061 - Disclosure - Note 15 - Subsequent Events (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.solbrightgroup.com/20180831/role/statement-note-15-subsequent-events-details-textual</Role>
      <ShortName>Note 15 - Subsequent Events (Details Textual)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.solbrightgroup.com/20180831/role/statement-note-15-subsequent-events</ParentRole>
      <Position>62</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>sbrt-20180831.xml</File>
    <File>sbrt-20180831.xsd</File>
    <File>sbrt-20180831_cal.xml</File>
    <File>sbrt-20180831_def.xml</File>
    <File>sbrt-20180831_lab.xml</File>
    <File>sbrt-20180831_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>
