v3.26.1
Shareholder Report
 12 Months Ended
May 31, 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 May 31, 2026
Shareholder Report Annual or Semi-Annual Annual Shareholder Report
C000172959  
Shareholder Report [Line Items]  
Fund Name LGM Risk Managed Total Return Fund
Trading Symbol LBETX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about LGM Risk Managed Total Return Fund for the period of June 1, 2025 to May 31, 2026.
Additional Information [Text Block] You can find additional information about the Fund at www.LGMCapitalmanagement.com . You can also request this information by contacting us at 1-844-655-9371.
Additional Information Phone Number 1-844-655-9371
Additional Information Website www.LGMCapitalmanagement.com
Expenses [Text Block]

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

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Institutional Class
$272
2.62%
Expenses Paid, Amount $ 272
Expense Ratio, Percent 2.62%
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]
Chart showing performance over last 10 years or since inception
Table Summary
LGM Risk Managed Total Return Fund - Institutional Class
Bloomberg Global Aggregate Index
S&P 500® Index
Jun-2017
$10,000
$10,000
$10,000
May-2018
$11,374
$10,166
$11,350
May-2019
$11,264
$10,481
$11,779
May-2020
$10,706
$11,067
$13,292
May-2021
$10,938
$11,561
$18,651
May-2022
$11,199
$10,034
$18,595
May-2023
$11,175
$9,584
$19,138
May-2024
$12,800
$9,659
$24,532
May-2025
$13,360
$10,338
$27,850
May-2026
$14,383
$10,675
$36,144
Average Annual Return [Table Text Block]

Average Annual Total Returns 

Table Summary
1 Year
5 Years
Since Inception (June 12, 2017)
LGM Risk Managed Total Return Fund - Institutional Class
7.66%
5.63%
4.14%
Bloomberg Global Aggregate Index
3.25%
-1.58%
0.73%
S&P 500® Index
29.78%
14.15%
15.41%

The Fund’s past performance is not a good predictor of how the Fund will perform in the future. The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. For updated performance call 1-844-655-9371.
Performance Inception Date Jun. 12, 2017
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 $ 13,070,186
Holdings Count | Holding 4
Advisory Fees Paid, Amount $ 147,402
InvestmentCompanyPortfolioTurnover 426.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Net Assets$13,070,186
  • Number of Portfolio Holdings4
  • Advisory Fee (net of waivers)$147,402
  • Portfolio Turnover426%
Holdings [Text Block]

Asset Weighting (% of total investments)

Group By Asset Type Chart
Table Summary
Value
Value
Exchange-Traded Funds
100.0%

Sector Weighting (% of net assets)

Group By Sector Chart
Table Summary
Value
Value
Other Assets in Excess of Liabilities
61.0%
Fixed Income
5.6%
Equity
33.4%

Top 10 Holdings (% of net assets)

Table Summary
Holding Name
% of Net Assets
Invesco QQQ Trust Series 1
22.6%
State Street SPDR Dow Jones Industrial Average ETF
7.8%
Vanguard Total Bond Market ETF
5.6%
State Street Financial Select Sector SPDR ETF
3.0%
Material Fund Change [Text Block]

Material Fund Changes

No material changes occurred during the year ended May 31, 2026.