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Note 17 - Segments (Details Textual) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Number of Reportable Segments |  | 2 |  |
Purchase Accounting, Reversal of Earn Out Compensation Expense | [1] | $ 0 | $ 0 | $ (2,017)
Henderson Inc. [Member] |  |  |  |
Purchase Accounting, Reversal of Earn Out Compensation Expense |  |  |  | 17
Dejana [Member] |  |  |  |
Purchase Accounting, Reversal of Earn Out Compensation Expense |  |  |  | $ 2,000
[1] | Reflects $17 in reversal of earnout compensation related to Henderson, and $2,000 in reversal of earnout compensation related to Dejana in the year ended December 31, 2020.

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- Definition The amount of purchase accounting- (reversal of) earn out compensation expense during the period. + References No definition available. + Details
Name: | plow_PurchaseAccountingReversalOfEarnOutCompensationExpense
Namespace Prefix: | plow_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 18 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8672-108599 + Details
Name: | us-gaap_NumberOfReportableSegments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_BusinessAcquisitionAxis=plow_HendersonIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=plow_DejanaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |