XML 39 R28.htm IDEA: XBRL DOCUMENT
v3.24.1.1.u2

OPERATING SEGMENTS - Reconciliation of EBITDA to net cash provided by (used in) operating activities (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Reconciliation |  |
Net cash used in operating activities | $ 1,870 | $ (1,820)
Changes in working capital and other items | 5,971 | 4,253
Non-cash adjustments to net income (loss) | (271) | (254)
EBITDA | 7,570 | 2,179
Operating segment | United States |  |
Reconciliation |  |
Net cash used in operating activities | 1,996 | 2,578
Changes in working capital and other items | 1,835 | (2,794)
Non-cash adjustments to net income (loss) | (220) | (218)
EBITDA | 3,611 | (434)
Operating segment | Canada |  |
Reconciliation |  |
Net cash used in operating activities | (126) | (4,398)
Changes in working capital and other items | 4,136 | 7,047
Non-cash adjustments to net income (loss) | (51) | (36)
EBITDA | $ 3,959 | $ 2,613

X
- Definition Amount of EBITDA, or earnings before interest, taxes, depreciation, and amortization. + References No definition available. + Details
Name: | dwsn_EarningsBeforeInterestTaxesDepreciationAndAmortization.
Namespace Prefix: | dwsn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The non-cash portion of total operating lease costs for the period. + References No definition available. + Details
Name: | dwsn_NonCashOperatingLeaseCosts
Namespace Prefix: | dwsn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The increase (decrease) during the reporting period of all assets and liabilities used in operating activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (a) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 + Details
Name: | us-gaap_IncreaseDecreaseInOperatingCapital
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 24 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-24 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 25 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-25 + Details
Name: | us-gaap_NetCashProvidedByUsedInOperatingActivities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=dwsn_UnitedStatesOperationsSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=dwsn_CanadaOperationsSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |