<?xml version='1.0' encoding='UTF-8'?>
<FilingSummary>
  <Version>3.3.1.900</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>185</ContextCount>
  <ElementCount>331</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>42</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>6</UnitCount>
  <MyReports>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>00090 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DocumentDocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>00100 - Statement - CONSOLIDATED BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/StatementConsolidatedBalanceSheets</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>00105 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/StatementConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>00200 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE (LOSS) INCOME</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/StatementConsolidatedStatementsOfOperationsAndComprehensiveLossIncome</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE (LOSS) INCOME</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>00300 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/StatementConsolidatedStatementsOfStockholdersEquity</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>00400 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/StatementConsolidatedStatementsOfCashFlows</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CASH FLOWS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>10101 - Disclosure - Summary of Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureSummaryOfSignificantAccountingPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>10201 - Disclosure - Short-Term Investments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureShortTermInvestments</Role>
      <ShortName>Short-Term Investments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>10301 - Disclosure - Fair Value of Financial Instruments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureFairValueOfFinancialInstruments</Role>
      <ShortName>Fair Value of Financial Instruments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>10401 - Disclosure - Merger</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureMerger</Role>
      <ShortName>Merger</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>10501 - Disclosure - Property, Plant and Equipment</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosurePropertyPlantAndEquipment</Role>
      <ShortName>Property, Plant and Equipment</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>10601 - Disclosure - Supplemental Consolidated Balance Sheet Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureSupplementalConsolidatedBalanceSheetInformation</Role>
      <ShortName>Supplemental Consolidated Balance Sheet Information</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>10701 - Disclosure - Debt</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureDebt</Role>
      <ShortName>Debt</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>10801 - Disclosure - Stock-Based Compensation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureStockBasedCompensation</Role>
      <ShortName>Stock-Based Compensation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>10901 - Disclosure - Dividends</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureDividends</Role>
      <ShortName>Dividends</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>11001 - Disclosure - Employee Benefit Plans</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureEmployeeBenefitPlans</Role>
      <ShortName>Employee Benefit Plans</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>11101 - Disclosure - Advertising Costs</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureAdvertisingCosts</Role>
      <ShortName>Advertising Costs</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>11201 - Disclosure - Income Taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureIncomeTaxes</Role>
      <ShortName>Income Taxes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>11301 - Disclosure - Net (Loss) Income per Share Attributable to Common Stock</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureNetLossIncomePerShareAttributableToCommonStock</Role>
      <ShortName>Net (Loss) Income per Share Attributable to Common Stock</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>11401 - Disclosure - Major Clients</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureMajorClients</Role>
      <ShortName>Major Clients</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>11501 - Disclosure - Areas of Operation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureAreasOfOperation</Role>
      <ShortName>Areas of Operation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>11601 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureCommitmentsAndContingencies</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>11701 - Disclosure - Rights Agreement</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureRightsAgreement</Role>
      <ShortName>Rights Agreement</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>11801 - Disclosure - Recently Issued Accounting Pronouncements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureRecentlyIssuedAccountingPronouncements</Role>
      <ShortName>Recently Issued Accounting Pronouncements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>11901 - Disclosure - Concentrations of Credit Risk</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureConcentrationsOfCreditRisk</Role>
      <ShortName>Concentrations of Credit Risk</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>12001 - Disclosure - Quarterly Consolidated Financial Data (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureQuarterlyConsolidatedFinancialDataUnaudited</Role>
      <ShortName>Quarterly Consolidated Financial Data (Unaudited)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>20102 - Disclosure - Summary of Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureSummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>30403 - Disclosure - Merger (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureMergerTables</Role>
      <ShortName>Merger (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureMerger</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>30503 - Disclosure - Property, Plant and Equipment (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosurePropertyPlantAndEquipmentTables</Role>
      <ShortName>Property, Plant and Equipment (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosurePropertyPlantAndEquipment</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>30603 - Disclosure - Supplemental Consolidated Balance Sheet Information (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureSupplementalConsolidatedBalanceSheetInformationTables</Role>
      <ShortName>Supplemental Consolidated Balance Sheet Information (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureSupplementalConsolidatedBalanceSheetInformation</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>30703 - Disclosure - Debt (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureDebtTables</Role>
      <ShortName>Debt (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureDebt</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>30803 - Disclosure - Stock-Based Compensation (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureStockBasedCompensationTables</Role>
      <ShortName>Stock-Based Compensation (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureStockBasedCompensation</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>31203 - Disclosure - Income Taxes (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureIncomeTaxesTables</Role>
      <ShortName>Income Taxes (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureIncomeTaxes</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>31303 - Disclosure - Net (Loss) Income per Share Attributable to Common Stock (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureNetLossIncomePerShareAttributableToCommonStockTables</Role>
      <ShortName>Net (Loss) Income per Share Attributable to Common Stock (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureNetLossIncomePerShareAttributableToCommonStock</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>31403 - Disclosure - Major Clients (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureMajorClientsTables</Role>
      <ShortName>Major Clients (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureMajorClients</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>31603 - Disclosure - Commitments and Contingencies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureCommitmentsAndContingenciesTables</Role>
      <ShortName>Commitments and Contingencies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureCommitmentsAndContingencies</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>32003 - Disclosure - Quarterly Concolidated Financial Data (Unaudited) (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureQuarterlyConcolidatedFinancialDataUnauditedTables</Role>
      <ShortName>Quarterly Concolidated Financial Data (Unaudited) (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <Position>37</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>40101 - Disclosure - Summary of Significant Accounting Policies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureSummaryOfSignificantAccountingPoliciesDetails</Role>
      <ShortName>Summary of Significant Accounting Policies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>40201 - Disclosure - Short-Term Investments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureShortTermInvestmentsDetails</Role>
      <ShortName>Short-Term Investments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureShortTermInvestments</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>40401 - Disclosure - Merger (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureMergerDetails</Role>
      <ShortName>Merger (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureMergerTables</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>40501 - Disclosure - Property, Plant and Equipement (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosurePropertyPlantAndEquipementDetails</Role>
      <ShortName>Property, Plant and Equipement (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosurePropertyPlantAndEquipmentTables</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>40601 - Disclosure - Supplemental Consolidated Balance Sheet Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureSupplementalConsolidatedBalanceSheetInformationDetails</Role>
      <ShortName>Supplemental Consolidated Balance Sheet Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureSupplementalConsolidatedBalanceSheetInformationTables</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>40701 - Disclosure - DEBT (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureDebtDetails</Role>
      <ShortName>DEBT (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>43</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>40801 - Disclosure - Stock-Based Compensation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureStockBasedCompensationDetails</Role>
      <ShortName>Stock-Based Compensation (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureStockBasedCompensationTables</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>40802 - Disclosure - Stock-Based Compensation - Incentive Stock Options (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureStockBasedCompensationIncentiveStockOptionsDetails</Role>
      <ShortName>Stock-Based Compensation - Incentive Stock Options (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>40803 - Disclosure - Stock-Based Compensation - Restricted Stock Awards, Restricted Stock Units and Common Stock Award (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureStockBasedCompensationRestrictedStockAwardsRestrictedStockUnitsAndCommonStockAwardDetails</Role>
      <ShortName>Stock-Based Compensation - Restricted Stock Awards, Restricted Stock Units and Common Stock Award (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>40901 - Disclosure - Dividends (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureDividendsDetails</Role>
      <ShortName>Dividends (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureDividends</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>41001 - Disclosure - Employee Benefit Plans (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureEmployeeBenefitPlansDetails</Role>
      <ShortName>Employee Benefit Plans (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureEmployeeBenefitPlans</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>41101 - Disclosure - Advertising Costs (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureAdvertisingCostsDetails</Role>
      <ShortName>Advertising Costs (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureAdvertisingCosts</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>41201 - Disclosure - Income Taxes (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureIncomeTaxesDetails</Role>
      <ShortName>Income Taxes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureIncomeTaxesTables</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>41301 - Disclosure - Net (Loss) Income per Share Attributable to Common Stock (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureNetLossIncomePerShareAttributableToCommonStockDetails</Role>
      <ShortName>Net (Loss) Income per Share Attributable to Common Stock (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureNetLossIncomePerShareAttributableToCommonStockTables</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>41302 - Disclosure - Net (Loss) Income per Share Attributable to Common Stock - Stock Options and Restricted Stock (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureNetLossIncomePerShareAttributableToCommonStockStockOptionsAndRestrictedStockDetails</Role>
      <ShortName>Net (Loss) Income per Share Attributable to Common Stock - Stock Options and Restricted Stock (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureNetLossIncomePerShareAttributableToCommonStockTables</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>41303 - Disclosure - Net (Loss) Income per Share Attributable to Common Stock - Unvested Restricted Stock (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureNetLossIncomePerShareAttributableToCommonStockUnvestedRestrictedStockDetails</Role>
      <ShortName>Net (Loss) Income per Share Attributable to Common Stock - Unvested Restricted Stock (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureNetLossIncomePerShareAttributableToCommonStockTables</ParentRole>
      <Position>53</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>41401 - Disclosure - Major Clients (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureMajorClientsDetails</Role>
      <ShortName>Major Clients (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureMajorClientsTables</ParentRole>
      <Position>54</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>41501 - Disclosure - Areas of Operation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureAreasOfOperationDetails</Role>
      <ShortName>Areas of Operation (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureAreasOfOperation</ParentRole>
      <Position>55</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>41601 - Disclosure - Commitments and Contingencies - Contractual Obligations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureCommitmentsAndContingenciesContractualObligationsDetails</Role>
      <ShortName>Commitments and Contingencies - Contractual Obligations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>56</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>41602 - Disclosure - Commitments and Contingencies - Rental Expense and Letters of Credit (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureCommitmentsAndContingenciesRentalExpenseAndLettersOfCreditDetails</Role>
      <ShortName>Commitments and Contingencies - Rental Expense and Letters of Credit (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>57</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>41701 - Disclosure - Rights Agreement (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureRightsAgreementDetails</Role>
      <ShortName>Rights Agreement (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureRightsAgreement</ParentRole>
      <Position>58</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>41801 - Disclosure - Recently Issued Accounting Pronouncements (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureRecentlyIssuedAccountingPronouncementsDetails</Role>
      <ShortName>Recently Issued Accounting Pronouncements (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureRecentlyIssuedAccountingPronouncements</ParentRole>
      <Position>59</Position>
    </Report>
    <Report instance="dwsn-20151231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>42001 - Disclosure - Quarterly Consolidated Financial Data (Unaudited) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dawson3d.com/role/DisclosureQuarterlyConsolidatedFinancialDataUnauditedDetails</Role>
      <ShortName>Quarterly Consolidated Financial Data (Unaudited) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dawson3d.com/role/DisclosureQuarterlyConsolidatedFinancialDataUnaudited</ParentRole>
      <Position>60</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>dwsn-20151231.xml</File>
    <File>dwsn-20151231.xsd</File>
    <File>dwsn-20151231_cal.xml</File>
    <File>dwsn-20151231_def.xml</File>
    <File>dwsn-20151231_lab.xml</File>
    <File>dwsn-20151231_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies/>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
