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Note 3 - Assets Held For Sale (Details Textual) | Dec. 31, 2024 USD ($)
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Asset, Held-for-Sale, Not Part of Disposal Group | $ 82,000
Real Estate, Held for Sale, List Price | $ 10,900,000

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- Definition Represents the listed price pf real estate held for sale. + References No definition available. + Details
Name: | mlp_RealEstateHeldForSaleListPrice
Namespace Prefix: | mlp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of assets held-for-sale that are not part of a disposal group. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 15 -Paragraph 4 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482309/360-10-15-4 + Details
Name: | us-gaap_AssetsHeldForSaleNotPartOfDisposalGroup
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant