v3.26.1
Shareholder Report
 6 Months Ended
May 31, 2026
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
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 Semi-Annual Shareholder Report
C000241373  
Shareholder Report [Line Items]  
Fund Name National Security Emerging Markets Index ETF
Trading Symbol NSI
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about National Security Emerging Markets Index ETF for the period of December 1, 2025 to May 31, 2026.
Additional Information [Text Block] You can find additional information about the Fund at https://www.nationalsecurityindex.com. You can also request this information by contacting us at 833-906-5569.
Additional Information Phone Number 833-906-5569
Additional Information Website https://www.nationalsecurityindex.com
Expenses [Text Block]

What were the Fund’s costs for the last six months?

(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
National Security Emerging Markets Index ETF
$41
0.75%Footnote Reference*
FootnoteDescription
Footnote*
Annualized
Expenses Paid, Amount $ 41
Expense Ratio, Percent 0.75% [1]
AssetsNet $ 41,867,110
Holdings Count | Holding 104
Advisory Fees Paid, Amount $ 139,328
InvestmentCompanyPortfolioTurnover 21.00%
Holdings [Text Block]

Asset Weighting (% of total investments)

Group By Asset Type Chart
Table Summary
Value
Value
Common Stocks
100.0%

Sector Weighting (% of net assets)

Group By Sector Chart
Table Summary
Value
Value
Other Assets in Excess of Liabilities
4.2%
Communication Services
0.1%
Utilities
1.2%
Consumer Staples
2.0%
Health Care
2.6%
Energy
3.4%
Industrials
3.8%
Materials
7.4%
Consumer Discretionary
7.5%
Communications
14.2%
Financials
18.2%
Technology
35.4%
Largest Holdings [Text Block]

Top 10 Holdings (% of net assets)

Table Summary
Holding Name
% of Net Assets
Taiwan Semiconductor Manufacturing Company Ltd.
15.9%
Samsung Electronics Company Ltd.
9.1%
Hon Hai Precision Industry Company Ltd.
3.6%
ASE Technology Holding Company Ltd.
3.6%
China Construction Bank Corporation
3.4%
Ping An Insurance Group Company of China Ltd.
2.5%
PDD Holdings, Inc.
2.4%
Naspers Ltd., Class N
2.2%
Reliance Industries Ltd.
2.2%
NetEase, Inc.
2.0%
Material Fund Change [Text Block]

Material Fund Changes

No material changes occurred during the period ended May 31, 2026. 
[1] Annualized