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Note 21 - Material Overcharge Settlement (Details Textual) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Polyurethane Foam Antitrust Lawsuit [Member] |  |
Litigation Settlement, Amount Awarded from Other Party | $ 0.1 | $ 2.1

X
- Definition Amount awarded from other party in judgment or settlement of litigation. + References No definition available. + Details
Name: | us-gaap_LitigationSettlementAmountAwardedFromOtherParty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_LitigationCaseAxis=ufpt_PolyurethaneFoamAntitrustLawsuitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |