Lessor, Contractual Rent, Percentage Unpaid

No definition available.

Name:	nlcp_LessorContractualRentPercentageUnpaid
Namespace Prefix:	nlcp_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The percentage of rent increases for lease of the lessor.

+ References

No definition available.

+ Details

Name:	nlcp_LessorLeasePercentageOfRentIncrease
Namespace Prefix:	nlcp_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Lessor, Number Of Leases Subject To Purchase Option

+ References

No definition available.

+ Details

Name:	nlcp_LessorNumberOfLeasesSubjectToPurchaseOption
Namespace Prefix:	nlcp_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Lessor, Operating Lease, Term Of Rent Escrow

+ References

No definition available.

+ Details

Name:	nlcp_LessorOperatingLeaseTermOfRentEscrow
Namespace Prefix:	nlcp_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Lessor, Operating Lease, Term Of Rent Escrow Applied

+ References

No definition available.

+ Details

Name:	nlcp_LessorOperatingLeaseTermOfRentEscrowApplied
Namespace Prefix:	nlcp_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Lessor, Reimbursable Revenue

+ References

No definition available.

+ Details

Name:	nlcp_LessorReimbursableRevenue
Namespace Prefix:	nlcp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Lessor, Tenant Improvements, Term Of Funding

+ References

No definition available.

+ Details

Name:	nlcp_LessorTenantImprovementsTermOfFunding
Namespace Prefix:	nlcp_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Number Of States In Which Entity Owns Property

+ References

No definition available.

+ Details

Name:	nlcp_NumberOfStatesInWhichEntityOwnsProperty
Namespace Prefix:	nlcp_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number Of Tenants

+ References

No definition available.

+ Details

Name:	nlcp_NumberOfTenants
Namespace Prefix:	nlcp_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use in year four.

+ References

No definition available.

+ Details

Name:	nlcp_OperatingLeasePaymentsYearFour
Namespace Prefix:	nlcp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use in year one.

+ References

No definition available.

+ Details

Name:	nlcp_OperatingLeasePaymentsYearOne
Namespace Prefix:	nlcp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Total unfunded commitments of tenant improvements.

+ References

No definition available.

+ Details

Name:	nlcp_UnfundedCommitments
Namespace Prefix:	nlcp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Remaining lease term of operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 7A
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-7A

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

+ Details

Name:	us-gaap_LesseeOperatingLeaseRemainingLeaseTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

+ Details

Name:	us-gaap_LesseeOperatingLeaseRenewalTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

+ Details

Name:	us-gaap_LesseeOperatingLeaseTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479773/842-30-50-3

+ Details

Name:	us-gaap_LessorLeaseDescriptionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfRealEstateProperties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Indicates line item in statement of financial position that includes operating lease liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-2

+ Details

Name:	us-gaap_OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList
Namespace Prefix:	us-gaap_
Data Type:	enum2:enumerationSetItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of lessee's right to use underlying asset under operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-1

+ Details

Name:	us-gaap_OperatingLeaseRightOfUseAsset
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Indicates line item in statement of financial position that includes operating lease right-of-use asset.

+ References

+ Details

Name:	us-gaap_OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList
Namespace Prefix:	us-gaap_
Data Type:	enum2:enumerationSetItemType
Balance Type:	na
Period Type:	instant

- Definition

Weighted average discount rate for operating lease calculated at point in time.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 53
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479589/842-20-55-53

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (g)(4)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-4

+ Details

Name:	us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of real estate investment property which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(1)(d))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(1)(6))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1

+ Details

Name:	us-gaap_RealEstateInvestmentPropertyAtCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This element represents money paid in advance to protect the provider of a product or service, such as a lessor, against damage or nonpayment by the buyer or tenant (lessee) during the term of the agreement. Such damages may include physical damage to the property, theft of property, and other contractual breaches. Security deposits held may be interest or noninterest bearing.

+ References

No definition available.

+ Details

Name:	us-gaap_SecurityDepositLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=nlcp_RevolutionaryClinicsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=nlcp_CalypsoEnterprisesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
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Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
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Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InvestmentTypeAxis=nlcp_RealEstateLeasedAssetsWithOptionToPurchaseMember
Namespace Prefix:
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Period Type:

Leases - Narrative (Details)	3 Months Ended		10 Months Ended
Leases - Narrative (Details)	Mar. 31, 2025 USD ($) property lease state tenant	Mar. 31, 2024 USD ($)	Mar. 31, 2025 USD ($) property lease state tenant	Feb. 28, 2025 USD ($)	Dec. 31, 2024 USD ($) state tenant property	Sep. 30, 2024 USD ($)	Jun. 30, 2022 USD ($)	Jun. 01, 2022
Lessor, Lease, Description [Line Items]
Reimbursable revenue	$ 400,000	$ 300,000
Number of leases with purchase option \| lease	2		2
Total Real Estate	$ 431,728,000		$ 431,728,000		$ 431,443,000
Number of properties \| property	33		33		32
Number of tenants \| tenant	12		12		13
Number of states where real estate property is owned \| state	12		12		12
Escrow deposit remaining for future application	$ 7,633,000		$ 7,633,000		$ 8,117,000
Lease term (in years)								4 years
Renewal term (in years)	3 years		3 years					3 years
Operating lease payments, year one	$ 72,000.0
Operating lease payments, year four	85,000.0
ROU asset	$ 92,200		$ 92,200		110,000.0		$ 273,000
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]							Other Assets
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]							Other Liabilities
Weighted-average discount rate	5.65%		5.65%
Remaining lease term (in years)	1 year 5 months 1 day		1 year 5 months 1 day
Revolutionary Clinics, Inc.
Lessor, Lease, Description [Line Items]
Percentage of rent not paid	50.00%		50.00%
Calypso Enterprises
Lessor, Lease, Description [Line Items]
Term of rent escrow (in months)	6 months
Escrow deposit remaining for future application	$ 0		$ 0	$ 43,000	$ 490,000
Term of rent escrow applied (in months)	4 months
Unfunded Commitments						$ 987,000
Minimum
Lessor, Lease, Description [Line Items]
Percentage of rent increase	2.00%
Term of tenant improvement funding (in months)	12 months
Maximum
Lessor, Lease, Description [Line Items]
Percentage of rent increase	3.00%
Term of tenant improvement funding (in months)	18 months
Real Estate Investment, Leased Assets with Option to Purchase
Lessor, Lease, Description [Line Items]
Total Real Estate	$ 6,300,000		$ 6,300,000