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Note 1 - Summary of Operations and Significant Accounting Policies - Property, Plant and Equipment Estimated Useful Life (Details) | 12 Months Ended
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Dec. 31, 2021
Building [Member] | Minimum [Member] |
Estimated useful lives (Year) | 10 years
Building [Member] | Maximum [Member] |
Estimated useful lives (Year) | 40 years
Machinery and Equipment [Member] | Minimum [Member] |
Estimated useful lives (Year) | 5 years
Machinery and Equipment [Member] | Maximum [Member] |
Estimated useful lives (Year) | 10 years
Furniture and Fixtures [Member] | Minimum [Member] |
Estimated useful lives (Year) | 5 years
Furniture and Fixtures [Member] | Maximum [Member] |
Estimated useful lives (Year) | 10 years
Computer Equipment [Member] | Minimum [Member] |
Estimated useful lives (Year) | 3 years
Computer Equipment [Member] | Maximum [Member] |
Estimated useful lives (Year) | 5 years
Leasehold Improvements [Member] |
Leasehold Improvements | Lesser of useful life or lease term

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- Definition Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 35 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123364984&loc=d3e1205-110223 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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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
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Data Type: | na
Balance Type: |
Period Type: |

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- Details
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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- Details
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Namespace Prefix: |
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