Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

Document and Entity Information - shares
9 Months Ended
Sep. 30, 2021
Nov. 02, 2021
Document and Entity Information    
Document Type 10-Q  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Sep. 30, 2021  
Entity File Number 001-34728  
Entity Registrant Name DOUGLAS DYNAMICS, INC  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 13-4275891  
Entity Address, Address Line One 7777 North 73rd Street  
Entity Address, City or Town Milwaukee  
Entity Address, Postal Zip Code 53223  
Entity Address, State or Province WI  
City Area Code 414  
Local Phone Number 354-2310  
Title of 12(b) Security Common Stock, par value $.01 per share  
Trading Symbol PLOW  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   22,980,951
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2021  
Document Fiscal Period Focus Q3  
Entity Central Index Key 0001287213  
Amendment Flag false