Shareholder Fees	Aug. 26, 2026
Toews Tactical Income Fund \| Toews Tactical Income Fund
Prospectus [Line Items]
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)	0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price)	0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage)	0.00%
Redemption Fee (as a percentage of Amount Redeemed)	0.00%
Toews Hedged U.S. Fund \| Toews Hedged U.S. Fund
Prospectus [Line Items]
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)	0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price)	0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage)	0.00%
Redemption Fee (as a percentage of Amount Redeemed)	0.00%
Toews Hedged Opportunity Fund \| Toews Hedged Opportunity Fund
Prospectus [Line Items]
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)	0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price)	0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage)	0.00%
Redemption Fee (as a percentage of Amount Redeemed)	0.00%
Toews Unconstrained Income Fund \| Toews Unconstrained Income Fund
Prospectus [Line Items]
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)	0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price)	0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage)	0.00%
Redemption Fee (as a percentage of Amount Redeemed)	0.00%
Toews Managed Risk Equity Fund \| Toews Managed Risk Equity Fund
Prospectus [Line Items]
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)	0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price)	0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage)	0.00%
Redemption Fee (as a percentage of Amount Redeemed)	0.00%

- References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form N-1A
-Section 3
-Subsection instruction
-Paragraph 2

+ Details

Name:	oef_MaximumDeferredSalesChargeOverOfferingPrice
Namespace Prefix:	oef_
Data Type:	oef:nonNegativePure4ItemType
Balance Type:	na
Period Type:	duration

- References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form N-1A
-Section 3
-Subsection instruction
-Paragraph 2

+ Details

Name:	oef_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice
Namespace Prefix:	oef_
Data Type:	oef:nonNegativePure4ItemType
Balance Type:	na
Period Type:	duration

- References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form N-1A
-Section 3
-Subsection instruction
-Paragraph 2

+ Details

Name:	oef_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther
Namespace Prefix:	oef_
Data Type:	oef:nonNegativePure4ItemType
Balance Type:	na
Period Type:	duration

- References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form N-1A
-Section 1
-Subsection a

+ Details

Name:	oef_ProspectusLineItems
Namespace Prefix:	oef_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form N-1A
-Section 3
-Subsection instruction
-Paragraph 2

+ Details

Name:	oef_RedemptionFeeOverRedemption
Namespace Prefix:	oef_
Data Type:	oef:nonPositivePure4ItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	dei_LegalEntityAxis=nlfun_S000027930Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	oef_ClassAxis=nlfun_C000084894Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=nlfun_S000027931Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	oef_ClassAxis=nlfun_C000084895Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=nlfun_S000027932Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	oef_ClassAxis=nlfun_C000084896Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=nlfun_S000041209Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	oef_ClassAxis=nlfun_C000127804Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=nlfun_S000033706Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	oef_ClassAxis=nlfun_C000103841Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: