v3.26.1
Shareholder Report
12 Months Ended
Feb. 28, 2026
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSR
Amendment Flag false
Registrant Name Northern Lights Fund Trust IV
Entity Central Index Key 0001644419
Entity Investment Company Type N-1A
Document Period End Date Feb. 28, 2026
Shareholder Report Annual or Semi-Annual Annual Shareholder Report
C000254728  
Shareholder Report [Line Items]  
Fund Name FM Compounders Equity ETF
Trading Symbol FMCE
Security Exchange Name NYSEArca
Additional Information Phone Number 1-888-530-2448
Additional Information Website https://fmexcelsioretfs.com/fmce/details/
Expenses [Text Block]

What were the Fund’s costs for the last year?

(based on a hypothetical $10,000 investment)

Table Summary
Fund Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
FM Compounders Equity ETF
$72
0.70%
Expenses Paid, Amount $ 72
Expense Ratio, Percent 0.70%
Factors Affecting Performance [Text Block]

How did the Fund perform during the reporting period? 

For the fiscal year ended February 28, 2026, FM Compounders Equity ETF ("FMCE") returned 5.42% vs the S&P 500 Equal Weighted of 15.96%.

 

FMCE’s underperformance was driven largely by a continued market rotation out of financial and software stocks.

 

The largest contributors to FMCE's performance in the period (enumerated with return contribution) were: AMAT (+3.22%), ASML (+2.60%) and INTC (+2.39%). The largest detractors were SNPS (-1.18%), CRM (-1.12%) and PGR (-1.06%).

Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not a good predictor of how the Fund will perform in the future.
Line Graph [Table Text Block]
Growth of 10K Chart
Table Summary
FM Compounders Equity ETF - NAV
S&P 500® Equal Weight Index
11/08/24
$10,000
$10,000
11/30/24
$10,304
$10,195
12/31/24
$9,785
$9,557
01/31/25
$10,118
$9,891
02/28/25
$10,274
$9,831
03/31/25
$9,978
$9,499
04/30/25
$9,926
$9,281
05/31/25
$10,322
$9,685
06/30/25
$10,616
$10,017
07/31/25
$10,516
$10,115
08/31/25
$10,729
$10,387
09/30/25
$10,882
$10,503
10/31/25
$10,785
$10,403
11/30/25
$10,833
$10,601
12/31/25
$10,847
$10,649
01/31/26
$11,013
$11,010
02/28/26
$10,831
$11,400
Average Annual Return [Table Text Block]
Table Summary
1 Year
Since Inception (November 8, 2024)
FM Compounders Equity ETF - NAV
5.42%
6.30%
S&P 500® Equal Weight Index
15.96%
10.55%
Performance Inception Date Nov. 08, 2024
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
AssetsNet $ 62,645,210
Holdings Count | Holding 30
Advisory Fees Paid, Amount $ 436,620
InvestmentCompanyPortfolioTurnover 46.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

Table Summary
Net Assets
$62,645,210
Number of Portfolio Holdings
30
Advisory Fee
$436,620
Portfolio Turnover
46%
Holdings [Text Block]

Asset Weighting (% of total investments)

Group By Asset Type Chart
Table Summary
Value
Value
Common Stocks
90.2%
Money Market Funds
9.8%

Sector Weighting (% of net assets)

Group By Sector Chart
Table Summary
Value
Value
Energy
2.2%
Materials
3.8%
Consumer Staples
4.3%
Communications
4.9%
Consumer Discretionary
7.1%
Health Care
9.5%
Money Market Funds
9.8%
Industrials
10.6%
Financials
14.8%
Technology
33.0%
Largest Holdings [Text Block]

Top 10 Equity Holdings (% of net assets) 

Table Summary
Holding Name
% of Net Assets
General Electric Company
5.1%
Intel Corporation
4.8%
Berkshire Hathaway, Inc. - Class B
4.6%
Progressive Corporation (The)
4.2%
Visa, Inc. - Class A
4.0%
Danaher Corporation
3.9%
Amazon.com, Inc.
3.8%
Linde PLC
3.8%
ASML Holding N.V.
3.8%
Salesforce, Inc.
3.6%
Material Fund Change [Text Block]

Material Fund Changes

No material changes occurred during the year ended February 28, 2026. 

C000232649  
Shareholder Report [Line Items]  
Fund Name FM Focus Equity ETF
Trading Symbol FMCX
Security Exchange Name NYSEArca
Additional Information Phone Number 1-888-530-2448
Additional Information Website https://fmexcelsioretfs.com/fmcx/details/
Expenses [Text Block]

What were the Fund’s costs for the last year?

(based on a hypothetical $10,000 investment)

Table Summary
Fund Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
FM Focus Equity ETF
$73
0.70%
Expenses Paid, Amount $ 73
Expense Ratio, Percent 0.70%
Factors Affecting Performance [Text Block]

How did the Fund perform during the reporting period? 

For the fiscal year ended February 28, 2026, FM Focus Equity ETF ("FMCX")returned 8.61% vs. the S&P 500 Index of 16.99%.

 

FMCX’s underperformance was driven largely by a continued market rotation out of financial and software stocks.

 

The largest contributors to FMCX's performance in the period (enumerated with return contribution) were: AMAT (+3.34%), GE (+3.08%) and GEV US (+2.27%). The largest detractors were KKR (-1.92%), CRM (-1.49%) and SNPS (-1.17%).

Performance Past Does Not Indicate Future [Text] The Fund's past performance is not a good predictor of how the Fund will perform in the future.
Line Graph [Table Text Block]
Growth of 10K Chart
Table Summary
FM Focus Equity ETF - NAV
S&P 500® Index
04/22/22
$10,000
$10,000
08/31/22
$9,224
$9,316
02/28/23
$9,266
$9,433
08/31/23
$10,167
$10,801
02/29/24
$11,513
$12,306
08/31/24
$12,440
$13,732
02/28/25
$13,075
$14,571
08/31/25
$14,233
$15,913
02/28/26
$14,202
$17,046
Average Annual Return [Table Text Block]
Table Summary
1 Year
Since Inception (April 22, 2022)
FM Focus Equity ETF - NAV
8.61%
9.53%
S&P 500® Index
16.99%
14.84%
Performance Inception Date Apr. 22, 2022
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
AssetsNet $ 108,523,011
Holdings Count | Holding 30
Advisory Fees Paid, Amount $ 745,050
InvestmentCompanyPortfolioTurnover 67.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

Table Summary
Net Assets
$108,523,011
Number of Portfolio Holdings
30
Advisory Fee
$745,050
Portfolio Turnover
67%
Holdings [Text Block]

Asset Weighting (% of total investments)

Group By Asset Type Chart
Table Summary
Value
Value
Common Stocks
92.1%
Money Market Funds
7.9%

Sector Weighting (% of net assets)

Group By Sector Chart
Table Summary
Value
Value
Materials
4.6%
Communications
6.0%
Money Market Funds
7.9%
Health Care
9.8%
Consumer Discretionary
11.6%
Industrials
12.2%
Financials
12.5%
Technology
35.4%
Largest Holdings [Text Block]

Top 10 Equity Holdings (% of net assets) 

Table Summary
Holding Name
% of Net Assets
General Electric Company
6.5%
Microsoft Corporation
6.3%
Berkshire Hathaway, Inc. - Class A
4.9%
Linde PLC
4.6%
KKR & Company, Inc.
4.4%
O'Reilly Automotive, Inc.
4.2%
Danaher Corporation
4.1%
Amazon.com, Inc.
4.1%
Intel Corporation
3.9%
Applied Materials, Inc.
3.8%
Material Fund Change [Text Block]

Material Fund Changes

No material changes occurred during the year ended February 28, 2026.