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Note 14 - Subsequent Event (Details Textual) - Forecast [Member] $ in Millions | 3 Months Ended
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Dec. 31, 2025 USD ($)
Minimum [Member] |
Pension Expense (Reversal of Expense), Noncash | $ 1.5
Maximum [Member] |
Pension Expense (Reversal of Expense), Noncash | $ 2.0

X
- Definition Amount of noncash expense (reversal of expense) for pension benefits. Excludes other postretirement benefits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 + Details
Name: | us-gaap_PensionExpenseReversalOfExpenseNoncash
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- 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: |