XML 72 R52.htm IDEA: XBRL DOCUMENT v3.25.1

Note 9 - Commitments and Contingencies (Details Textual) - USD ($)		12 Months Ended
	Dec. 31, 2018	Dec. 31, 2024	Dec. 31, 2023
Payments for Reimbursement of Filtration and Maintenance		$ 23,000	$ 23,000
Notice and Finding of Violation and Order [Member]
Loss Contingency, Damages Sought, Value	$ 230,000

X

- Definition

Cash payments made for reimbursement of filtration and maintenance.

+ References

No definition available.

+ Details

Name:	mlp_PaymentsForReimbursementOfFiltrationAndMaintenance
Namespace Prefix:	mlp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-4

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-9

+ Details

Name:	us-gaap_LossContingencyDamagesSoughtValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	srt_LitigationCaseAxis=mlp_NoticeAndFindingOfViolationAndOrderMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: