Douglas Dynamics, Inc. Quarterly report [Sections 13 or 15(d)]

Quarterly report [Sections 13 or 15(d)]

Note 9 - Long-term Debt (Details Textual)

Note 9 - Long-term Debt (Details Textual)						3 Months Ended		12 Months Ended
Note 9 - Long-term Debt (Details Textual)	Nov. 21, 2025 USD ($)	Mar. 26, 2025 USD ($)	Jan. 20, 2025 USD ($)	Dec. 17, 2024 USD ($) T	May 19, 2022 USD ($)	Mar. 31, 2026 USD ($)	Mar. 31, 2025 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2025 USD ($)	Jul. 11, 2023 USD ($)
Gain (Loss) on Extinguishment of Debt						$ 0	$ (156,000)
Debt Modification Expense						(0)	176,000
Interest Rate Swap [Member]
Derivative, Notional Amount	$ 75,000,000				$ 125,000,000
Derivative, Nonmonetary Notional Amount, Flow Rate, Percentage	3.30%				2.718%
Interest Rate Derivative Assets, at Fair Value						930,000			$ 698,000
Derivative Asset, Current						439,000			461,000
Derivative Asset, Noncurrent						491,000			237,000
Steel Hedging Instrument [Member]
Derivative, Nonmonetary Notional Amount, Mass (US Ton) \| T				3,000
Derivative, Fixed Payments				$ 819,000
Cash Flow Hedge Derivative Instrument Assets at Fair Value						0			50,000
Secured Debt [Member]
Debt Instrument, Unamortized Discount						336,000			357,000
Long-Term Debt						142,164,000			144,018,000
Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity		$ 125,000
Line of Credit Facility, Current Borrowing Capacity						20,000,000			5,000,000
Line of Credit Facility, Remaining Borrowing Capacity						104,450,000			119,450,000
Revolving Credit Facility [Member] \| New York Federal Reserve Bank NYFRB [Member]
Debt Instrument, Basis Spread on Variable Rate		0.50%
Revolving Credit Facility [Member] \| One Month Adjusted Term SOFR Rate [Member]
Debt Instrument, Basis Spread on Variable Rate		1.00%
Revolving Credit Facility [Member] \| Maximum [Member]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage		0.30%
Revolving Credit Facility [Member] \| Maximum [Member] \| Leverage Ratio Two [Member] \| Secured Overnight Financing Rate (SOFR) [Member]
Debt Instrument, Basis Spread on Variable Rate		1.00%
Revolving Credit Facility [Member] \| Minimum [Member]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage		0.15%
Revolving Credit Facility [Member] \| Minimum [Member] \| Leverage Ratio Two [Member] \| Secured Overnight Financing Rate (SOFR) [Member]
Debt Instrument, Basis Spread on Variable Rate		0.375%
Letter of Credit [Member]
Line of Credit Facility, Maximum Borrowing Capacity		$ 10,000
Swingline Loan [Member]
Line of Credit Facility, Maximum Borrowing Capacity		15,000
Floor Plan Line of Credit [Member]
Line of Credit Facility, Maximum Borrowing Capacity			$ 20,000,000
Debt Instrument, Basis Spread on Variable Rate			0.50%
Senior Secured Term Loan Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity		$ 150,000
Senior Secured Term Loan Facility [Member] \| Maximum [Member] \| Leverage Ratio One [Member] \| Secured Overnight Financing Rate (SOFR) [Member]
Debt Instrument, Basis Spread on Variable Rate		2.00%
Senior Secured Term Loan Facility [Member] \| Minimum [Member] \| Leverage Ratio One [Member] \| Secured Overnight Financing Rate (SOFR) [Member]
Debt Instrument, Basis Spread on Variable Rate		1.375%
Credit Agreement [Member]
Debt Instrument, Unamortized Discount								$ 312,000
Debt Issuance Costs, Net								863,000
Debt Instrument, Upfront Fee								260,000
Deferred Debt Issuance Cost, Writeoff								131,000
Write off of Unamortized Debt Discount								$ 25,000
Gain (Loss) on Extinguishment of Debt							156,000
Debt Modification Expense							$ 176,000
Debt Instrument Covenant Leverage Ratio							3.50%
Credit Agreement [Member] \| Asset Pledged as Collateral [Member] \| Cash Surrender Value of Corporate Owned Life Insurance Policies [Member]
Line of Credit Facility, Maximum Borrowing Capacity										$ 1,000
Secured Debt						$ 305,000			$ 427,000
Credit Agreement [Member] \| Maximum [Member]
Line of Credit Facility Increase in Maximum Borrowing Capacity		$ 175,000