This Semi-Annual Shareholder Report contains important information about the Saturna Bond Income Fund for the period of December 1, 2024 to May 31, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.saturna.com/fund/saturna-bond-income. You can also request this information by contacting us at 1-800-728-8762 or investorservices@saturna.com.

Additional Information Phone Number

1-800-728-8762

Additional Information Email

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Additional Information Website

Expenses [Text Block]

What were the Fund’s costs for the 6 months?

(Based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 Investment	Cost Paid as a % of a $10,000 Investment
Saturna Bond Income	$32	0.65%

Expenses Paid, Amount

$ 32

Expense Ratio, Percent

0.65%

Average Annual Return [Table Text Block]

Annual Average Total Return

	1 Year	5 Year	10 Year
Saturna Bond Income	4.41%	-2.17%	1.02%
Bloomberg US Aggregate Bond Index	7.03%	-1.35%	0.94%

Past performance does not guarantee future results. The "Average Annual Return" table assumes the reinvestment of dividends and capital shares. Performance results do not reflect the deduction of taxes that a shareowner might pay on fund distributions or the redemptions of fund shares. Please visit www.saturna.com/fund/saturna-bond-income for more recent performance information.

AssetsNet

$ 11,730,428

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 12,604

InvestmentCompanyPortfolioTurnover

4.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets	$11,730,428
# of Portfolio Holdings	46
Advisory Fees Paid	$12,604
Portfolio Turnover Rate	4%

Holdings [Text Block]

Sector Weightings

% of Total Net Assets

Government	24.3%
Financials	11.8%
Technology	9.1%
Health Care	8.7%
Industrials	5.7%
Energy	5.0%
Consumer Discretionary	4.9%
Municipal Bonds	4.6%
Utilities	4.4%
Consumer Staples	4.4%
Other Sectors	9.7%
Other Assets (net of liabilities)	7.4%

C000065111

Shareholder Report [Line Items]

Fund Name

Saturna Core Fund

Class Name

SATURNA CORE

Trading Symbol

SCORX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual Shareholder Report contains important information about the Saturna Core Fund for the period of December 1, 2024 to May 31, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.saturna.com/fund/saturna-core. You can also request this information by contacting us at 1-800-728-8762 or investorservices@saturna.com.

Additional Information Phone Number

1-800-728-8762

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund’s costs for the 6 months?

(Based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 Investment	Cost Paid as a % of a $10,000 Investment
Saturna Core	$46	0.91%

Expenses Paid, Amount

$ 46

Expense Ratio, Percent

0.91%

Average Annual Return [Table Text Block]

Annual Average Total Return

	1 Year	5 Year	10 Year
Saturna Core	7.16%	7.26%	6.01%
Bloomberg Developed Markets Large & Mid Cap Total Return	14.20%	13.31%	10.44%
Bloomberg Global Equity/Fixed Income 60/40 Index	11.42%	8.15%	6.80%
Dow Jones Moderate US Portfolio Index	9.82%	7.09%	5.92%

AssetsNet

$ 27,566,048

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 65,956

InvestmentCompanyPortfolioTurnover

8.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets	$27,566,048
# of Portfolio Holdings	88
Advisory Fees Paid	$65,956
Portfolio Turnover Rate	8%

Holdings [Text Block]

Sector Weightings

% of Total Net Assets

Technology	20.7%
Industrials	13.6%
Government	7.3%
Financials	7.2%
Materials	6.2%
Communications	6.1%
Consumer Discretionary	6.0%
Consumer Staples	5.4%
Utilities	5.1%
Health Care	4.6%
Other Sectors	7.8%
Other Assets (net of liabilities)	10.0%

C000112018

Shareholder Report [Line Items]

Fund Name

Saturna Global High Income Fund

Class Name

SATURNA GLOBAL HIGH INCOME FUND

Trading Symbol

SGHIX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual Shareholder Report contains important information about the Saturna Global High Income Fund for the period of December 1, 2024 to May 31, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.saturna.com/fund/saturna-global-high-income. You can also request this information by contacting us at 1-800-728-8762 or investorservices@saturna.com.

Additional Information Phone Number

1-800-728-8762

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund’s costs for the 6 months?

(Based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 Investment	Cost Paid as a % of a $10,000 Investment
Saturna Global High Income Fund	$38	0.75%

Expenses Paid, Amount

$ 38

Expense Ratio, Percent

0.75%

Average Annual Return [Table Text Block]

Annual Average Total Return

	1 Year	5 Year	10 Year
Saturna Global High Income Fund	6.50%	6.37%	4.78%
Bloomberg Developed Markets Large & Mid Cap Total Return	14.20%	13.31%	10.44%
Bloomberg Global Equity/Fixed Income 50/50 Index	10.71%	6.55%	5.85%
S&P Global 1200 Index	13.92%	14.60%	10.45%

AssetsNet

$ 11,087,347

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 10,492

InvestmentCompanyPortfolioTurnover

0.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets	$11,087,347
# of Portfolio Holdings	42
Advisory Fees Paid	$10,492
Portfolio Turnover Rate	0%

Holdings [Text Block]

Geographic Weightings

% of Total Net Assets

United States	38.0%
Australia	7.8%
Norway	4.4%
Peru	4.3%
Sweden	3.8%
Japan	3.7%
France	2.7%
Switzerland	2.6%
United Kingdom	2.4%
Netherlands	2.3%
Other Countries	8.9%
Other Assets (net of liabilities)	19.1%

C000012974

Shareholder Report [Line Items]

Fund Name

Saturna Growth Fund

Class Name

INVESTOR SHARES

Trading Symbol

SSGFX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual Shareholder Report contains important information about the Saturna Growth Fund for the period of December 1, 2024 to May 31, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.saturna.com/fund/saturna-growth. You can also request this information by contacting us at 1-800-728-8762 or investorservices@saturna.com.

Additional Information Phone Number

1-800-728-8762

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund’s costs for the 6 months?

(Based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 Investment	Cost Paid as a % of a $10,000 Investment
Investor Shares	$49	0.99%

Expenses Paid, Amount

$ 49

Expense Ratio, Percent

0.99%

Average Annual Return [Table Text Block]

Annual Average Total Return

	1 Year	5 Year	10 Year
Investor Shares	13.35%	13.41%	11.86%
Bloomberg 1000 Growth Total Return Index	16.02%	16.02%	14.69%
Bloomberg US Large Cap Total Return Index	14.18%	15.84%	12.95%
S&P 500 Index	13.52%	15.94%	12.86%

AssetsNet

$ 74,478,215

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 182,594

InvestmentCompanyPortfolioTurnover

2.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets	$74,478,215
# of Portfolio Holdings	29
Advisory Fees Paid	$182,594
Portfolio Turnover Rate	2%

Holdings [Text Block]

Industry Weightings

% of Total Net Assets

Infrastructure Software	17.7%
Semiconductor Devices	15.2%
Communications Equipment	10.1%
Internet Media & Services	10.1%
Online Marketplace	7.4%
Medical Devices	5.2%
Mass Merchants	4.9%
Application Software	3.4%
Other Financial Services	3.2%
Specialty Apparel Stores	3.2%
Other Industries	15.4%
Other Assets (net of liabilities)	4.2%

C000188907

Shareholder Report [Line Items]

Fund Name

Saturna Growth Fund

Class Name

Z SHARES

Trading Symbol

SGZFX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual Shareholder Report contains important information about the Saturna Growth Fund for the period of December 1, 2024 to May 31, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.saturna.com/fund/saturna-growth. You can also request this information by contacting us at 1-800-728-8762 or investorservices@saturna.com.

Additional Information Phone Number

1-800-728-8762

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund’s costs for the 6 months?

(Based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 Investment	Cost Paid as a % of a $10,000 Investment
Z Shares	$38	0.77%

Expenses Paid, Amount

$ 38

Expense Ratio, Percent

0.77%

Average Annual Return [Table Text Block]

Annual Average Total Return

	1 Year	5 Year	Since Inception
Z Shares	13.59%	13.68%	14.23%
Bloomberg 1000 Growth Total Return Index	16.02%	16.02%	15.94%
Bloomberg US Large Cap Total Return Index	14.18%	15.84%	13.82%
S&P 500 Index	13.52%	15.94%	13.61%

AssetsNet

$ 74,478,215

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 182,594

InvestmentCompanyPortfolioTurnover

2.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets	$74,478,215
# of Portfolio Holdings	29
Advisory Fees Paid	$182,594
Portfolio Turnover Rate	2%

Holdings [Text Block]

Industry Weightings

% of Total Net Assets

Infrastructure Software	17.7%
Semiconductor Devices	15.2%
Communications Equipment	10.1%
Internet Media & Services	10.1%
Online Marketplace	7.4%
Medical Devices	5.2%
Mass Merchants	4.9%
Application Software	3.4%
Other Financial Services	3.2%
Specialty Apparel Stores	3.2%
Other Industries	15.4%
Other Assets (net of liabilities)	4.2%

C000065110

Shareholder Report [Line Items]

Fund Name

Saturna International Fund

Class Name

INVESTOR SHARES

Trading Symbol

SSIFX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual Shareholder Report contains important information about the Saturna International Fund for the period of December 1, 2024 to May 31, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.saturna.com/fund/saturna-international. You can also request this information by contacting us at 1-800-728-8762 or investorservices@saturna.com.

Additional Information Phone Number

1-800-728-8762

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund’s costs for the 6 months?

(Based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 Investment	Cost Paid as a % of a $10,000 Investment
Investor Shares	$52	1.02%

Expenses Paid, Amount

$ 52

Expense Ratio, Percent

1.02%

Average Annual Return [Table Text Block]

Annual Average Total Return

	1 Year	5 Year	10 Year
Investor Shares	3.34%	9.57%	7.49%
Bloomberg Developed Markets ex US Large & Mid Cap Total Return Index	4.85%	0.95%	0.47%
MSCI EAFE Index	13.92%	11.98%	6.49%

AssetsNet

$ 71,837,247

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 173,035

InvestmentCompanyPortfolioTurnover

7.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets	$71,837,247
# of Portfolio Holdings	32
Advisory Fees Paid	$173,035
Portfolio Turnover Rate	7%

Holdings [Text Block]

Industry Weightings

% of Total Net Assets

Application Software	13.9%
Semiconductor Manufacturing	11.7%
Online Marketplace	8.8%
Large Pharma	7.7%
Electrical Power Equipment	7.6%
Semiconductor Devices	7.1%
Commercial & Residential Building Equipment & Systems	6.0%
Professional Services	5.0%
Industrial Wholesale & Rental	3.7%
IT Services	3.0%
Other Industries	25.3%
Other Assets (net of liabilities)	0.2%

C000188908

Shareholder Report [Line Items]

Fund Name

Saturna International Fund

Class Name

Z SHARES

Trading Symbol

SIFZX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual Shareholder Report contains important information about the Saturna International Fund for the period of December 1, 2024 to May 31, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

Additional Information Phone Number

1-800-728-8762

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund’s costs for the 6 months?

(Based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 Investment	Cost Paid as a % of a $10,000 Investment
Z Shares	$43	0.83%

Expenses Paid, Amount

$ 43

Expense Ratio, Percent

0.83%

Average Annual Return [Table Text Block]

Annual Average Total Return

	1 Year	5 Year	Since Inception
Z Shares	3.54%	9.80%	8.91%
Bloomberg Developed Markets ex US Large & Mid Cap Total Return Index	4.85%	0.95%	0.59%
MSCI EAFE Index	13.92%	11.98%	7.19%

AssetsNet

$ 71,837,247

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 173,035

InvestmentCompanyPortfolioTurnover

7.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets	$71,837,247
# of Portfolio Holdings	32
Advisory Fees Paid	$173,035
Portfolio Turnover Rate	7%

Holdings [Text Block]

Industry Weightings

% of Total Net Assets

Application Software	13.9%
Semiconductor Manufacturing	11.7%
Online Marketplace	8.8%
Large Pharma	7.7%
Electrical Power Equipment	7.6%
Semiconductor Devices	7.1%
Commercial & Residential Building Equipment & Systems	6.0%
Professional Services	5.0%
Industrial Wholesale & Rental	3.7%
IT Services	3.0%
Other Industries	25.3%
Other Assets (net of liabilities)	0.2%

C000065112

Shareholder Report [Line Items]

Fund Name

Saturna Short-Term Bond Fund

Class Name

SATURNA SHORT-TERM BOND

Trading Symbol

STBFX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual Shareholder Report contains important information about the Saturna Short-Term Bond Fund for the period of December 1, 2024 to May 31, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.saturna.com/fund/saturna-short-term-bond. You can also request this information by contacting us at 1-800-728-8762 or investorservices@saturna.com.

Additional Information Phone Number

1-800-728-8762

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund’s costs for the 6 months?

(Based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 Investment	Cost Paid as a % of a $10,000 Investment
Saturna Short-Term Bond	$30	0.60%

Expenses Paid, Amount

$ 30

Expense Ratio, Percent

0.60%

Average Annual Return [Table Text Block]

Annual Average Total Return

	1 Year	5 Year	10 Year
Saturna Short-Term Bond	4.91%	1.13%	1.52%
Bloomberg US Aggregate 1-3 Year Index	5.86%	1.47%	1.76%
Bloomberg US Aggregate Bond Index	7.03%	-1.35%	0.94%

AssetsNet

$ 13,984,401

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 6,707

InvestmentCompanyPortfolioTurnover

22.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets	$13,984,401
# of Portfolio Holdings	35
Advisory Fees Paid	$6,707
Portfolio Turnover Rate	22%

Holdings [Text Block]

Sector Weightings

% of Total Net Assets

Government	33.0%
Financials	17.7%
US Government Agency	8.6%
Communications	7.7%
Utilities	3.3%
Consumer Staples	2.9%
Materials	2.2%
Technology	2.1%
Municipal Bonds	2.1%
Health Care	1.1%
Other Sectors	1.1%
Other Assets (net of liabilities)	18.2%

C000153268

Shareholder Report [Line Items]

Fund Name

Saturna Sustainable Bond Fund

Class Name

SUSTAINABLE BOND

Trading Symbol

SEBFX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual Shareholder Report contains important information about the Saturna Sustainable Bond Fund for the period of December 1, 2024 to May 31, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.saturna.com/fund/saturna-sustainable-bond. You can also request this information by contacting us at 1-800-728-8762 or investorservices@saturna.com.

Additional Information Phone Number

1-800-728-8762

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund’s costs for the 6 months?

(Based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 Investment	Cost Paid as a % of a $10,000 Investment
Sustainable Bond	$33	0.65%

Expenses Paid, Amount

$ 33

Expense Ratio, Percent

0.65%

Average Annual Return [Table Text Block]

Annual Average Total Return

	1 Year	5 Year	10 Year
Sustainable Bond	3.84%	1.00%	1.59%
Bloomberg US Aggregate Bond Index	7.03%	-1.35%	0.94%
FTSE World BIG Bond Index	6.86%	-1.61%	0.87%

Past performance does not guarantee future results. The "Average Annual Return" table assumes the reinvestment of dividends and capital shares. Performance results do not reflect the deduction of taxes that a shareowner might pay on fund distributions or the redemptions of fund shares. Please visit www.saturna.com/fund/saturna-sustainable-bond for more recent performance information.

AssetsNet

$ 43,535,137

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 81,131

InvestmentCompanyPortfolioTurnover

17.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets	$43,535,137
# of Portfolio Holdings	47
Advisory Fees Paid	$81,131
Portfolio Turnover Rate	17%

Holdings [Text Block]

Sector Weightings

% of Total Net Assets

Financials	26.4%
Government	21.8%
Real Estate	10.9%
Communications	8.3%
Consumer Discretionary	5.1%
Energy	4.6%
Technology	4.1%
Utilities	3.4%
Consumer Staples	3.3%
Industrials	3.2%
Other industries	3.5%
Other Assets (net of liabilities)	5.4%

C000153267

Shareholder Report [Line Items]

Fund Name

Saturna Sustainable Equity Fund

Class Name

SUSTAINABLE EQUITY

Trading Symbol

SEEFX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual Shareholder Report contains important information about the Saturna Sustainable Equity Fund for the period of December 1, 2024 to May 31, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information [Text Block]

You can find additional information about the Fund at www.saturna.com/fund/saturna-sustainable-equity. You can also request this information by contacting us at 1-800-728-8762 or investorservices@saturna.com.

Additional Information Phone Number

1-800-728-8762

Additional Information Email

Additional Information Website

Expenses [Text Block]

What were the Fund’s costs for the 6 months?

(Based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 Investment	Cost Paid as a % of a $10,000 Investment
Sustainable Equity	$38	0.75%

Expenses Paid, Amount

$ 38

Expense Ratio, Percent

0.75%

Average Annual Return [Table Text Block]

Annual Average Total Return

	1 Year	5 Year	10 Year
Sustainable Equity	6.57%	8.68%	7.94%
Bloomberg World Large & Mid Cap Total Return Index	14.04%	12.26%	9.67%
S&P Global 1200 Index	13.92%	14.60%	10.45%

AssetsNet

$ 22,948,334

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 45,324

InvestmentCompanyPortfolioTurnover

5.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets	$22,948,334
# of Portfolio Holdings	43
Advisory Fees Paid	$45,324
Portfolio Turnover Rate	5%

Holdings [Text Block]

Industry Weightings

% of Total Net Assets

Semiconductor Devices	10.1%
Large Pharma	7.7%
Semiconductor Manufacturing	6.7%
Infrastructure Software	5.7%
Electrical Power Equipment	5.3%
Consumer Electronics	5.2%
Personal Care Products	4.5%
IT Services	4.1%
Professional Services	3.9%
Life Insurance	3.4%
Other Industries	41.4%
Other Assets (net of liabilities)	2.0%