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 | |||
| C000246894 | ||||
| Shareholder Report [Line Items] | ||||
| Fund Name | PlanRock Alternative Growth ETF | |||
| Trading Symbol | PRAE | |||
| Security Exchange Name | NYSEArca | |||
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about PlanRock Alternative Growth 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://www.planrockfunds.com/literature-prospectus/. You can also request this information by contacting us at 1-800-677-6025. | |||
| Additional Information Phone Number | 1-800-677-6025 | |||
| Additional Information Website | https://www.planrockfunds.com/literature-prospectus/ | |||
| Expenses Paid, Amount | $ 64 | |||
| Expense Ratio, Percent | 1.25% | [1] | ||
| 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. | |||
| Performance Inception Date | Dec. 18, 2023 | |||
| 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 | $ 10,447,483 | |||
| Holdings Count | Holding | 25 | |||
| Advisory Fees Paid, Amount | $ 0 | |||
| InvestmentCompanyPortfolioTurnover | 73.00% | |||
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