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
C000159719  
Shareholder Report [Line Items]  
Fund Name Pinnacle Multi-Strategy Core Fund
Class Name Class A
Trading Symbol APSHX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Pinnacle Multi-Strategy Core Fund for the period of October 1, 2025 to March 31, 2026.
Additional Information [Text Block] You can find additional information about the Fund at pinnacledynamicfunds.com/document-center/. You can also request this information by contacting us at (888) 985-9830.
Additional Information Phone Number (888) 985-9830
Additional Information Website pinnacledynamicfunds.com/document-center/
Expenses [Text Block]

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

(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
Class A
$70
1.37%Footnote Reference*
FootnoteDescription
Footnote*
Annualized
Expenses Paid, Amount $ 70
Expense Ratio, Percent 1.37% [1]
AssetsNet $ 29,192,160
Holdings Count | Holding 10
Advisory Fees Paid, Amount $ 37,705
InvestmentCompanyPortfolioTurnover 206.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

Table Summary
Net Assets
$29,192,160
Number of Portfolio Holdings
10
Advisory Fee (net of waivers)
$37,705
Portfolio Turnover
206%
Holdings [Text Block]

Asset Weighting (% of total investments)

Group By Asset Type Chart
Table Summary
Value
Value
Exchange-Traded Funds
73.2%
Money Market Funds
26.8%

Asset Weighting (% of net assets)

Group By Sector Chart
Table Summary
Value
Value
Other Assets in Excess of Liabilities
8.7%
Mixed Allocation
1.4%
Money Market Funds
24.5%
Equity
31.4%
Fixed Income
34.0%

Top 10 Holdings (% of net assets)

Table Summary
Holding Name
% of Net Assets
State Street SPDR Bloomberg 1-3 Month T-Bill ETF
34.1%
First American Government Obligations Fund, Class X
24.5%
Pinnacle Focused Opportunities ETF
18.3%
State Street SPDR S&P 500 ETF Trust
8.3%
First Trust Morningstar Dividend Leaders Index Fund
1.4%
Arrow Dow Jones Global Yield ETF
1.3%
State Street SPDR S&P Oil & Gas Exploration & Production ETF
1.0%
State Street Energy Select Sector SPDR ETF
0.9%
State Street Utilities Select Sector SPDR ETF
0.9%
VanEck Semiconductor ETF
0.6%
C000159720  
Shareholder Report [Line Items]  
Fund Name Pinnacle Multi-Strategy Core Fund
Class Name Class C
Trading Symbol CPSHX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Pinnacle Multi-Strategy Core Fund for the period of October 1, 2025 to March 31, 2026.
Additional Information [Text Block] You can find additional information about the Fund at pinnacledynamicfunds.com/document-center/. You can also request this information by contacting us at (888) 985-9830.
Additional Information Phone Number (888) 985-9830
Additional Information Website pinnacledynamicfunds.com/document-center/
Expenses [Text Block]

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

(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
Class C
$109
2.12%Footnote Reference*
FootnoteDescription
Footnote*
Annualized
Expenses Paid, Amount $ 109
Expense Ratio, Percent 2.12% [2]
AssetsNet $ 29,192,160
Holdings Count | Holding 10
Advisory Fees Paid, Amount $ 37,705
InvestmentCompanyPortfolioTurnover 206.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

Table Summary
Net Assets
$29,192,160
Number of Portfolio Holdings
10
Advisory Fee (net of waivers)
$37,705
Portfolio Turnover
206%
Holdings [Text Block]

Asset Weighting (% of total investments)

Group By Asset Type Chart
Table Summary
Value
Value
Exchange-Traded Funds
73.2%
Money Market Funds
26.8%

Asset Weighting (% of net assets)

Group By Sector Chart
Table Summary
Value
Value
Other Assets in Excess of Liabilities
8.7%
Mixed Allocation
1.4%
Money Market Funds
24.5%
Equity
31.4%
Fixed Income
34.0%

Top 10 Holdings (% of net assets)

Table Summary
Holding Name
% of Net Assets
State Street SPDR Bloomberg 1-3 Month T-Bill ETF
34.1%
First American Government Obligations Fund, Class X
24.5%
Pinnacle Focused Opportunities ETF
18.3%
State Street SPDR S&P 500 ETF Trust
8.3%
First Trust Morningstar Dividend Leaders Index Fund
1.4%
Arrow Dow Jones Global Yield ETF
1.3%
State Street SPDR S&P Oil & Gas Exploration & Production ETF
1.0%
State Street Energy Select Sector SPDR ETF
0.9%
State Street Utilities Select Sector SPDR ETF
0.9%
VanEck Semiconductor ETF
0.6%
C000159721  
Shareholder Report [Line Items]  
Fund Name Pinnacle Multi-Strategy Core Fund
Class Name Class I
Trading Symbol IPSHX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Pinnacle Multi-Strategy Core Fund for the period of October 1, 2025 to March 31, 2026.
Additional Information [Text Block] You can find additional information about the Fund at pinnacledynamicfunds.com/document-center/. You can also request this information by contacting us at (888) 985-9830.
Additional Information Phone Number (888) 985-9830
Additional Information Website pinnacledynamicfunds.com/document-center/
Expenses [Text Block]

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

(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
Class I
$57
1.11%Footnote Reference*
FootnoteDescription
Footnote*
Annualized
Expenses Paid, Amount $ 57
Expense Ratio, Percent 1.11% [3]
AssetsNet $ 29,192,160
Holdings Count | Holding 10
Advisory Fees Paid, Amount $ 37,705
InvestmentCompanyPortfolioTurnover 206.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

Table Summary
Net Assets
$29,192,160
Number of Portfolio Holdings
10
Advisory Fee (net of waivers)
$37,705
Portfolio Turnover
206%
Holdings [Text Block]

Asset Weighting (% of total investments)

Group By Asset Type Chart
Table Summary
Value
Value
Exchange-Traded Funds
73.2%
Money Market Funds
26.8%

Asset Weighting (% of net assets)

Group By Sector Chart
Table Summary
Value
Value
Other Assets in Excess of Liabilities
8.7%
Mixed Allocation
1.4%
Money Market Funds
24.5%
Equity
31.4%
Fixed Income
34.0%

Top 10 Holdings (% of net assets)

Table Summary
Holding Name
% of Net Assets
State Street SPDR Bloomberg 1-3 Month T-Bill ETF
34.1%
First American Government Obligations Fund, Class X
24.5%
Pinnacle Focused Opportunities ETF
18.3%
State Street SPDR S&P 500 ETF Trust
8.3%
First Trust Morningstar Dividend Leaders Index Fund
1.4%
Arrow Dow Jones Global Yield ETF
1.3%
State Street SPDR S&P Oil & Gas Exploration & Production ETF
1.0%
State Street Energy Select Sector SPDR ETF
0.9%
State Street Utilities Select Sector SPDR ETF
0.9%
VanEck Semiconductor ETF
0.6%
[1] Annualized
[2] Annualized
[3] Annualized