v3.26.1
Shareholder Report
12 Months Ended
Jun. 30, 2026
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSR
Amendment Flag false
Registrant Name Northern Lights Fund Trust III
Entity Central Index Key 0001537140
Entity Investment Company Type N-1A
Document Period End Date Jun. 30, 2026
Shareholder Report Annual or Semi-Annual Annual Shareholder Report
C000247041  
Shareholder Report [Line Items]  
Fund Name Swan Enhanced Dividend Income ETF
Trading Symbol SCLZ
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Swan Enhanced Dividend Income ETF for the period of July 1, 2025 to June 30, 2026.
Additional Information [Text Block] You can find additional information about the Fund at https://etfs.swanglobalinvestments.com/enhanced-dividend-income-etf/. You can also request this information by contacting us at 1-877-383-7259
Material Fund Change Notice [Text Block] This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number 1-877-383-7259
Additional Information Website https://etfs.swanglobalinvestments.com/enhanced-dividend-income-etf/
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
Swan Enhanced Dividend Income ETF
$85
0.79%
Expenses Paid, Amount $ 85
Expense Ratio, Percent 0.79%
Factors Affecting Performance [Text Block]

How did the Fund perform during the reporting period? 

Overview: the Fund completed its first full year of operations. This Fund has an objective of total return, seeking both sustainable income and capital appreciation, via actively managed covered call-writing on a quality dividend growth stock portfolio. For the one-year ended June 30, 2026, the Fund had a total return of 15.17% underperforming the 17.34% return of its benchmark, the Cboe S&P 500 BuyWrite (BXM) Index. The Fund completed its first full year under its elevated and more frequent distribution schedule. Previously, the Fund had an annual distribution rate of about 6%, paid in quarterly installments. Over the last year, the Fund has averaged an annual distribution rate of around 8%, paid monthly.

 

Core Equity: the Fund completed the transition of its core equity portfolio from a value-tilted portfolio to a portfolio more in-line with the characteristics of the S&P 500. This was intended to reduce basis risk. The transition was completed over the summer of 2025. Over the one-year ended June 30, 2026 the price return of the Fund’s equity portfolio was 26.76%, exceeding the 22.32% total return of the S&P 500.

 

Dividends: the dividends paid on the core equity component of the portfolio contributed to the Fund’s return, adding 1.10% to the total.

Call Writing: covered call writing strategies tend to do best when markets are gently rising or are down. Conversely, when markets are up significantly, call writing is likely to produce losses. This dynamic played out as expected over the 12-month period ended June 30, 2026. The Fund’s call writing generated positive returns during the fourth quarter of 2025 and first quarter of 2026. However, during the third quarter of 2025 and second quarter of 2026 the call writing was detrimental. For the year, the call writing segment had a -9.41% return.

 

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
Swan Enhanced Dividend Income ETF - NAV
CBOE S&P 500® BuyWrite Index
S&P 500® Index
Feb-2024
$10,000
$10,000
$10,000
Jun-2024
$10,354
$10,415
$10,824
Jun-2025
$11,507
$11,482
$12,466
Jun-2026
$13,253
$13,474
$15,248
Average Annual Return [Table Text Block]
Table Summary
1 Year
Since Inception (February 26, 2024)
Swan Enhanced Dividend Income ETF - NAV
15.17%
12.78%
CBOE S&P 500® BuyWrite Index
17.34%
13.57%
S&P 500® Index
22.32%
19.73%
Performance Inception Date Feb. 26, 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 $ 19,604,619
Holdings Count | Holding 101
Advisory Fees Paid, Amount $ 122,223
InvestmentCompanyPortfolioTurnover 73.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

Table Summary
Net Assets
$19,604,619
Number of Portfolio Holdings
101
Advisory Fee
$122,223
Portfolio Turnover
73%
Holdings [Text Block]

Asset Weighting (% of total investments)

Group By Asset Type Chart
Table Summary
Value
Value
Common Stocks
98.3%
Short-Term Investment
1.7%

Sector Weighting (% of net assets)

Group By Sector Chart
Table Summary
Value
Value
Other Assets in Excess of Liabilities
0.5%
Equity Option
-2.8%
Money Market Funds
1.7%
Real Estate
1.8%
Materials
1.9%
Utilities
2.2%
Energy
3.0%
Consumer Staples
4.6%
Financials
7.8%
Industrials
7.8%
Health Care
8.9%
Consumer Discretionary
9.4%
Communications
10.9%
Technology
42.3%
Largest Holdings [Text Block]

Top 10 Holdings (% of net assets)

Table Summary
Holding Name
% of Net Assets
Micron Technology, Inc.
7.9%
Apple, Inc.
6.2%
NVIDIA Corporation
6.0%
Alphabet, Inc., Class A
5.2%
Advanced Micro Devices, Inc.
5.2%
Broadcom, Inc.
4.7%
Eli Lilly & Company
3.9%
Amazon.com, Inc.
3.8%
Microsoft Corporation
3.7%
JPMorgan Chase & Company
3.5%
Material Fund Change [Text Block]

Material Fund Changes

This is a summary of certain changes to the Fund since July 1, 2025. For more complete information, you may review the Fund's prospectus dated November 1, 2025, which is available at https://etfs.swanglobalinvestments.com/enhanced-dividend-income-etf/ or 1-877-383-7259.

 

Effective July 1, 2025, the distribution frequency of dividends changed from quarterly to monthly.