v3.26.1
Shareholder Report
 6 Months Ended
Mar. 31, 2026
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
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 Mar. 31, 2026
Shareholder Report Annual or Semi-Annual Semi-Annual Shareholder Report
C000246525  
Shareholder Report [Line Items]  
Fund Name Counterpoint Quantitative Equity ETF
Trading Symbol CPAI
Security Exchange Name NYSE
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Counterpoint Quantitative Equity ETF for the period of October 1, 2025 to March 31, 2026.
Additional Information [Text Block] You can find additional information about the Fund at https://counterpointfunds.com/resources/. You can also request this information by contacting us at 1-844-509-2775.
Additional Information Phone Number 1-844-509-2775
Additional Information Website https://counterpointfunds.com/resources/
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
Counterpoint Quantitative Equity ETF
$39
0.75%Footnote Reference*
FootnoteDescription
Footnote*
Annualized
Expenses Paid, Amount $ 39
Expense Ratio, Percent 0.75% [1]
AssetsNet $ 209,750,510
Holdings Count | Holding 50
Advisory Fees Paid, Amount $ 456,485
InvestmentCompanyPortfolioTurnover 194.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

Table Summary
Net Assets
$209,750,510
Number of Portfolio Holdings
50
Advisory Fee (net of waivers)
$456,485
Portfolio Turnover
194%
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
Liabilities in Excess of Other Assets
-0.2%
Financials
2.0%
Energy
4.0%
Consumer Discretionary
4.0%
Materials
6.0%
Industrials
8.0%
Communications
10.0%
Consumer Staples
10.0%
Health Care
14.0%
Technology
42.2%

Top 10 Holdings (% of net assets)

Table Summary
Holding Name
% of Net Assets
Adaptive Biotechnologies Corporation
2.0%
Vertex, Inc., Class A
2.0%
LightPath Technologies, Inc., Class A
2.0%
Viavi Solutions, Inc.
2.0%
EZCORP, Inc., Class A
2.0%
RealReal, Inc. (The)
2.0%
Marqeta, Inc., Class A
2.0%
United Natural Foods, Inc.
2.0%
International Business Machines Corporation
2.0%
Star Bulk Carriers Corporation
2.0%
C000216396  
Shareholder Report [Line Items]  
Fund Name Counterpoint High Yield Trend ETF
Trading Symbol HYTR
Security Exchange Name NYSE
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Counterpoint High Yield Trend ETF for the period of October 1, 2025 to March 31, 2026.
Additional Information [Text Block] You can find additional information about the Fund at https://counterpointfunds.com/resources/. You can also request this information by contacting us at 1-844-509-2775.
Additional Information Phone Number 1-844-509-2775
Additional Information Website https://counterpointfunds.com/resources/
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
Counterpoint High Yield Trend ETF
$30
0.60%Footnote Reference*
FootnoteDescription
Footnote*
Annualized
Expenses Paid, Amount $ 30
Expense Ratio, Percent 0.60% [2]
AssetsNet $ 253,853,611
Holdings Count | Holding 4
Advisory Fees Paid, Amount $ 530,353
InvestmentCompanyPortfolioTurnover 175.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

Table Summary
Net Assets
$253,853,611
Number of Portfolio Holdings
4
Advisory Fee (net of waivers)
$530,353
Portfolio Turnover
175%
Holdings [Text Block]

Asset Weighting (% of total investments)

Group By Asset Type Chart
Table Summary
Value
Value
Exchange-Traded Funds
81.4%
Money Market Funds
18.6%

Asset Weighting (% of net assets)

Group By Sector Chart
Table Summary
Value
Value
Liabilities in Excess of Other Assets
-22.5%
Collateral for Securities Loaned
22.8%
Fixed Income
99.7%

Top Holdings (% of net assets)

Table Summary
Holding Name
% of Net Assets
State Street SPDR Bloomberg 1-3 Month T-Bill ETF
79.7%
iShares Broad USD High Yield Corporate Bond ETF
8.0%
State Street SPDR Bloomberg High Yield Bond ETF
6.0%
iShares iBoxx $ High Yield Corporate Bond ETF
6.0%
Material Fund Change [Text Block]

Material Fund Changes

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