v3.25.2
Cover
Jul. 31, 2025
Cover [Abstract]  
Document Type 8-K
Document Period End Date Jul. 31, 2025
Entity Registrant Name Proto Labs, Inc.
Entity Incorporation, State or Country Code MN
Entity File Number 001-35435
Entity Tax Identification Number 41-1939628
Entity Address, Address Line One 5540 Pioneer Creek Drive
Entity Address, City or Town Maple Plain
Entity Address, State or Province MN
Entity Address, Postal Zip Code 55359
City Area Code (763)
Local Phone Number 479-3680
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, Par Value $0.001 Per Share
Trading Symbol PRLB
Security Exchange Name NYSE
Entity Emerging Growth Company false
Entity Central Index Key 0001443669
Amendment Flag false