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Note 1 - Summary of Significant Accounting Policies - Estimated Useful Lives of Property, Plant, and Equipment (Details) | 12 Months Ended
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Dec. 31, 2020
Building and Building Improvements [Member] | Minimum [Member] |
Property, plant, and equipment, useful life (Year) | 20 years
Building and Building Improvements [Member] | Maximum [Member] |
Property, plant, and equipment, useful life (Year) | 40 years
Machinery and Equipment [Member] | Minimum [Member] |
Property, plant, and equipment, useful life (Year) | 7 years
Machinery and Equipment [Member] | Maximum [Member] |
Property, plant, and equipment, useful life (Year) | 15 years
Furniture, Fixtures, and Computers [Member] | Minimum [Member] |
Property, plant, and equipment, useful life (Year) | 3 years
Furniture, Fixtures, and Computers [Member] | Maximum [Member] |
Property, plant, and equipment, useful life (Year) | 7 years

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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_BuildingAndBuildingImprovementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_MachineryAndEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=ufpt_FurnitureFixturesAndComputersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |