Saturna Investment Trust (SSGFX) N-CSRS 31 Jul 24 Certified semi-annual shareholder report (management investment company) Financial data

Form N-CSR Cover

Form N-CSR Cover	6 Months Ended
	May 31, 2024
Shareholder Report [Line Items]
Document Type	N-CSRS
Amendment Flag	false
Registrant Name	SATURNA INVESTMENT TRUST
Entity Central Index Key	0000811860
Entity Investment Company Type	N-1A
Document Period End Date	May 31, 2024

Shareholder Report

Shareholder Report	6 Months Ended
	May 31, 2024 USD ($) Holding
Shareholder Report [Line Items]
Document Type	N-CSRS
Amendment Flag	false
Registrant Name	SATURNA INVESTMENT TRUST
Entity Central Index Key	0000811860
Entity Investment Company Type	N-1A
Document Period End Date	May 31, 2024
C000065113
Shareholder Report [Line Items]
Fund Name	Sextant Bond Income Fund
Class Name	SEXTANT BOND INCOME
Trading Symbol	SBIFX
Annual or Semi-Annual Statement [Text Block]	This Semi-Annual Shareholder Report contains important information about the Sextant Bond Income Fund for the period of December 1, 2023 to May 31, 2024.
Shareholder Report Annual or Semi-Annual	Semi-Annual Shareholder Report
Additional Information Phone Number	1-800-728-8762
Additional Information Email	investorservices@saturna.com</span>" id="sjs-B18">&lt;span style="box-sizing: border-box; color: rgb(68, 68, 68); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;">investorservices@saturna.com&lt;/span>
Additional Information Website	www.saturna.com/sextant/bond-income-fund
Expenses [Text Block]	What were the Fund’s costs for the last 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 Sextant Bond Income $32.78 0.65%
Expenses Paid, Amount	$ 32.78
Expense Ratio, Percent	0.65%
Line Graph [Table Text Block]	Sextant Bond Income Fund $10,931 Bloomberg US Aggregate Bond Index $11,329 May - 14 10,000 10,000 June - 14 10,005 10,005 July - 14 10,012 9,980 August - 14 10,151 10,090 September - 14 10,041 10,022 October - 14 10,145 10,120 November - 14 10,227 10,192 December - 14 10,255 10,202 January - 15 10,514 10,415 February - 15 10,361 10,318 March - 15 10,411 10,365 April - 15 10,320 10,328 May - 15 10,307 10,303 June - 15 10,176 10,191 July - 15 10,244 10,262 August - 15 10,193 10,247 September - 15 10,260 10,316 October - 15 10,169 10,318 November - 15 10,178 10,291 December - 15 10,105 10,258 January - 16 10,229 10,399 February - 16 10,335 10,473 March - 16 10,485 10,569 April - 16 10,529 10,609 May - 16 10,557 10,612 June - 16 10,867 10,803 July - 16 10,973 10,871 August - 16 10,978 10,859 September - 16 10,940 10,852 October - 16 10,821 10,769 November - 16 10,474 10,514 December - 16 10,499 10,529 January - 17 10,528 10,550 February - 17 10,637 10,621 March - 17 10,624 10,615 April - 17 10,687 10,697 May - 17 10,821 10,779 June - 17 10,828 10,769 July - 17 10,900 10,815 August - 17 11,014 10,912 September - 17 10,956 10,860 October - 17 10,985 10,866 November - 17 10,947 10,852 December - 17 11,039 10,902 January - 18 10,876 10,777 February - 18 10,774 10,674 March - 18 10,846 10,743 April - 18 10,725 10,663 May - 18 10,840 10,739 June - 18 10,780 10,726 July - 18 10,789 10,728 August - 18 10,884 10,797 September - 18 10,802 10,728 October - 18 10,703 10,643 November - 18 10,752 10,707 December - 18 10,914 10,903 January - 19 11,052 11,019 February - 19 11,055 11,013 March - 19 11,304 11,224 April - 19 11,311 11,227 May - 19 11,518 11,426 June - 19 11,722 11,570 July - 19 11,776 11,595 August - 19 12,141 11,896 September - 19 12,034 11,833 October - 19 12,085 11,868 November - 19 12,091 11,862 December - 19 12,030 11,854 January - 20 12,399 12,082 February - 20 12,631 12,299 March - 20 12,203 12,227 April - 20 12,641 12,444 May - 20 12,738 12,502 June - 20 12,856 12,581 July - 20 13,227 12,769 August - 20 13,022 12,666 September - 20 13,021 12,659 October - 20 12,906 12,602 November - 20 13,116 12,726 December - 20 13,094 12,744 January - 21 12,887 12,652 February - 21 12,536 12,470 March - 21 12,257 12,314 April - 21 12,421 12,411 May - 21 12,517 12,452 June - 21 12,753 12,539 July - 21 12,967 12,679 August - 21 12,921 12,655 September - 21 12,709 12,546 October - 21 12,733 12,542 November - 21 12,829 12,579 December - 21 12,782 12,547 January - 22 12,401 12,277 February - 22 12,184 12,140 March - 22 11,826 11,803 April - 22 11,227 11,355 May - 22 11,253 11,428 June - 22 11,061 11,249 July - 22 11,425 11,523 August - 22 10,991 11,198 September - 22 10,362 10,714 October - 22 10,193 10,575 November - 22 10,656 10,964 December - 22 10,610 10,915 January - 23 10,954 11,251 February - 23 10,610 10,960 March - 23 10,980 11,238 April - 23 11,055 11,306 May - 23 10,884 11,183 June - 23 10,860 11,143 July - 23 10,837 11,135 August - 23 10,765 11,064 September - 23 10,418 10,783 October - 23 10,221 10,613 November - 23 10,747 11,094 December - 23 11,199 11,518 January - 24 11,125 11,487 February - 24 10,950 11,324 March - 24 11,078 11,429 April - 24 10,749 11,140 May - 24 10,931 11,329
Average Annual Return [Table Text Block]	Annual Average Total Return 1 Year 5 Year 10 Year Sextant Bond Income 0.43% - 0.89% Bloomberg US Aggregate Bond Index 1.31% -0.17% 1.25%
AssetsNet	$ 9,974,054
Holdings Count | Holding	40
Advisory Fees Paid, Amount	$ 25,468
InvestmentCompanyPortfolioTurnover	4%
Additional Fund Statistics [Text Block]	Key Fund Statistics Total Net Assets $9,974,054 # of Portfolio Holdings 40 Advisory Fees Paid $25,468 Portfolio Turnover Rate 4%
Material Fund Change [Text Block]
Updated Prospectus Phone Number	1-800-728-8762
C000065111
Shareholder Report [Line Items]
Fund Name	Sextant Core Fund
Class Name	SEXTANT CORE
Trading Symbol	SCORX
Annual or Semi-Annual Statement [Text Block]	This Semi-Annual Shareholder Report contains important information about the Sextant Core Fund for the period of December 1, 2023 to May 31, 2024.
Shareholder Report Annual or Semi-Annual	Semi-Annual Shareholder Report
Additional Information Phone Number	1-800-728-8762
Additional Information Email	investorservices@saturna.com</span>" id="sjs-B40">&lt;span style="box-sizing: border-box; color: rgb(68, 68, 68); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;">investorservices@saturna.com&lt;/span>
Additional Information Website	www.saturna.com/sextant/core-fund
Expenses [Text Block]	What were the Fund’s costs for the last 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 Sextant Core $39.86 0.76%
Expenses Paid, Amount	$ 39.86
Expense Ratio, Percent	0.76%
Line Graph [Table Text Block]	Sextant Core Fund $17,078 S&P Global 1200 Index $25,155 Dow Jones Moderate US Portfolio Index $16,934 Bloomberg US Aggregate Bond Index $11,329 60%|40% S&P Global 1200|Bloomberg U.S. Agg. Index $18,704 May - 14 10,000 10,000 10,000 10,000 10,000 June - 14 10,144 10,180 10,193 10,005 10,110 July - 14 9,968 10,040 10,047 9,980 10,016 August - 14 10,168 10,264 10,279 10,090 10,195 September - 14 10,056 9,977 9,976 10,022 9,996 October - 14 10,136 10,049 10,128 10,120 10,079 November - 14 10,242 10,241 10,210 10,192 10,223 December - 14 10,110 10,073 10,153 10,202 10,126 January - 15 10,011 9,891 10,132 10,415 10,101 February - 15 10,258 10,454 10,412 10,318 10,408 March - 15 10,200 10,293 10,383 10,365 10,331 April - 15 10,274 10,580 10,468 10,328 10,489 May - 15 10,209 10,605 10,462 10,303 10,494 June - 15 9,978 10,354 10,320 10,191 10,299 July - 15 9,986 10,494 10,340 10,262 10,412 August - 15 9,607 9,809 9,982 10,247 9,998 September - 15 9,467 9,462 9,793 10,316 9,813 October - 15 9,813 10,216 10,204 10,318 10,282 November - 15 9,793 10,163 10,159 10,291 10,240 December - 15 9,680 9,987 10,030 10,258 10,120 January - 16 9,358 9,413 9,683 10,399 9,827 February - 16 9,323 9,348 9,744 10,473 9,814 March - 16 9,741 10,004 10,273 10,569 10,263 April - 16 9,880 10,170 10,388 10,609 10,381 May - 16 10,002 10,217 10,407 10,612 10,411 June - 16 10,037 10,140 10,498 10,803 10,438 July - 16 10,280 10,574 10,813 10,871 10,733 August - 16 10,237 10,610 10,817 10,859 10,750 September - 16 10,219 10,654 10,869 10,852 10,774 October - 16 9,976 10,484 10,666 10,769 10,638 November - 16 9,967 10,622 10,707 10,514 10,621 December - 16 10,088 10,875 10,799 10,529 10,779 January - 17 10,203 11,153 11,010 10,550 10,953 February - 17 10,468 11,456 11,227 10,621 11,161 March - 17 10,538 11,614 11,278 10,615 11,251 April - 17 10,591 11,790 11,406 10,697 11,388 May - 17 10,750 12,048 11,540 10,779 11,573 June - 17 10,803 12,114 11,584 10,769 11,606 July - 17 10,883 12,437 11,792 10,815 11,812 August - 17 10,989 12,476 11,846 10,912 11,876 September - 17 11,183 12,747 11,965 10,860 12,008 October - 17 11,360 13,012 12,113 10,866 12,161 November - 17 11,477 13,272 12,310 10,852 12,301 December - 17 11,559 13,468 12,434 10,902 12,432 January - 18 11,827 14,209 12,818 10,777 12,785 February - 18 11,451 13,618 12,486 10,674 12,418 March - 18 11,317 13,344 12,437 10,743 12,300 April - 18 11,237 13,488 12,425 10,663 12,343 May - 18 11,380 13,539 12,525 10,739 12,406 June - 18 11,326 13,515 12,491 10,726 12,387 July - 18 11,756 13,956 12,671 10,728 12,630 August - 18 11,890 14,096 12,816 10,797 12,739 September - 18 11,899 14,200 12,770 10,728 12,763 October - 18 11,344 13,170 12,124 10,643 12,167 November - 18 11,487 13,341 12,276 10,707 12,291 December - 18 11,025 12,368 11,787 10,903 11,843 January - 19 11,543 13,313 12,472 11,019 12,436 February - 19 11,852 13,691 12,686 11,013 12,645 March - 19 11,961 13,886 12,823 11,224 12,850 April - 19 12,315 14,394 13,061 11,227 13,134 May - 19 11,861 13,565 12,646 11,426 12,773 June - 19 12,433 14,456 13,205 11,570 13,341 July - 19 12,487 14,491 13,252 11,595 13,372 August - 19 12,569 14,221 13,125 11,896 13,361 September - 19 12,669 14,560 13,262 11,833 13,524 October - 19 12,841 14,946 13,475 11,868 13,755 November - 19 12,996 15,338 13,691 11,862 13,969 December - 19 13,229 15,858 13,979 11,854 14,249 January - 20 13,209 15,720 13,918 12,082 14,284 February - 20 12,612 14,433 13,263 12,299 13,685 March - 20 11,650 12,573 11,875 12,227 12,595 April - 20 12,535 13,872 12,795 12,444 13,466 May - 20 12,892 14,496 13,206 12,502 13,854 June - 20 13,007 14,915 13,467 12,581 14,129 July - 20 13,489 15,617 13,985 12,769 14,613 August - 20 13,835 16,603 14,366 12,666 15,119 September - 20 13,652 16,049 14,121 12,659 14,813 October - 20 13,412 15,608 14,052 12,602 14,542 November - 20 14,259 17,545 15,201 12,726 15,682 December - 20 14,599 18,329 15,690 12,744 16,111 January - 21 14,482 18,186 15,657 12,652 15,989 February - 21 14,550 18,652 15,940 12,470 16,143 March - 21 14,951 19,299 16,087 12,314 16,398 April - 21 15,253 20,174 16,563 12,411 16,896 May - 21 15,478 20,516 16,721 12,452 17,090 June - 21 15,439 20,751 16,828 12,539 17,256 July - 21 15,615 20,997 16,914 12,679 17,456 August - 21 15,722 21,513 17,143 12,655 17,700 September - 21 15,244 20,617 16,689 12,546 17,196 October - 21 15,791 21,746 17,134 12,542 17,759 November - 21 15,820 21,333 16,806 12,579 17,578 December - 21 16,368 22,278 17,165 12,547 18,027 January - 22 15,854 21,248 16,503 12,277 17,371 February - 22 15,542 20,681 16,292 12,140 17,016 March - 22 15,723 21,229 16,290 11,803 17,097 April - 22 14,948 19,549 15,294 11,355 16,026 May - 22 14,998 19,663 15,337 11,428 16,123 June - 22 14,212 17,980 14,460 11,249 15,194 July - 22 14,766 19,306 15,171 11,523 16,015 August - 22 14,333 18,500 14,735 11,198 15,433 September - 22 13,578 16,756 13,667 10,714 14,293 October - 22 14,212 17,895 14,111 10,575 14,802 November - 22 14,978 19,331 14,936 10,964 15,733 December - 22 14,669 18,529 14,596 10,915 15,313 January - 23 15,048 19,858 15,392 11,251 16,160 February - 23 14,649 19,294 14,963 10,960 15,718 March - 23 15,078 19,955 15,242 11,238 16,200 April - 23 15,272 20,298 15,311 11,306 16,407 May - 23 14,996 20,125 15,072 11,183 16,252 June - 23 15,487 21,323 15,617 11,143 16,809 July - 23 15,692 22,011 15,990 11,135 17,129 August - 23 15,518 21,474 15,585 11,064 16,835 September - 23 15,007 20,543 15,067 10,783 16,226 October - 23 14,772 19,992 14,652 10,613 15,862 November - 23 15,559 21,821 15,673 11,094 17,020 December - 23 16,112 22,861 16,450 11,518 17,768 January - 24 16,039 23,073 16,351 11,487 17,847 February - 24 16,434 24,095 16,664 11,324 18,221 March - 24 16,922 24,936 17,066 11,429 18,669 April - 24 16,538 24,054 16,529 11,140 18,084 May - 24 17,078 25,155 16,934 11,329 18,704
Average Annual Return [Table Text Block]	Annual Average Total Return 1 Year 5 Year 10 Year Sextant Core 13.88% 7.56% 5.50% S&P Global 1200 Index 24.99% 13.13% 9.65% Dow Jones Moderate US Portfolio Index 12.35% 6.01% 5.40% Bloomberg US Aggregate Bond Index 1.31% -0.17% 1.25% 60%|40% S&P Global 1200|Bloomberg U.S. Agg. Index 15.45% 7.93% 6.46%
AssetsNet	$ 25,273,737
Holdings Count | Holding	81
Advisory Fees Paid, Amount	$ 59,319
InvestmentCompanyPortfolioTurnover	12%
Additional Fund Statistics [Text Block]	Key Fund Statistics Total Net Assets $25,273,737 # of Portfolio Holdings 81 Advisory Fees Paid $59,319 Portfolio Turnover Rate 12%
Material Fund Change [Text Block]
Updated Prospectus Phone Number	1-800-728-8762
C000112018
Shareholder Report [Line Items]
Fund Name	Sextant Global High Income Fund
Class Name	SEXTANT GLOBAL HIGH INCOME FUND
Trading Symbol	SGHIX
Annual or Semi-Annual Statement [Text Block]	This Semi-Annual Shareholder Report contains important information about the Sextant Global High Income Fund for the period of December 1, 2023 to May 31, 2024.
Shareholder Report Annual or Semi-Annual	Semi-Annual Shareholder Report
Additional Information Phone Number	1-800-728-8762
Additional Information Email	investorservices@saturna.com</span>" id="sjs-B62">&lt;span style="box-sizing: border-box; color: rgb(68, 68, 68); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;">investorservices@saturna.com&lt;/span>
Additional Information Website	www.saturna.com/sextant/global-high-income-fund
Expenses [Text Block]	What were the Fund’s costs for the last 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 Sextant Global High Income Fund $39.35 0.75%
Expenses Paid, Amount	$ 39.35
Expense Ratio, Percent	0.75%
Line Graph [Table Text Block]	Sextant Global High Income Fund $14,444 S&P Global 1200 Index $25,155 Bloomberg Global High Yield Corp. Index $13,982 May - 14 10,000 10,000 10,000 June - 14 10,132 10,180 10,096 July - 14 9,903 10,040 9,942 August - 14 10,097 10,264 10,031 September - 14 9,745 9,977 9,773 October - 14 9,639 10,049 9,838 November - 14 9,713 10,241 9,779 December - 14 9,574 10,073 9,589 January - 15 9,519 9,891 9,515 February - 15 9,722 10,454 9,739 March - 15 9,455 10,293 9,622 April - 15 9,869 10,580 9,824 May - 15 9,639 10,605 9,819 June - 15 9,400 10,354 9,708 July - 15 9,160 10,494 9,667 August - 15 8,875 9,809 9,526 September - 15 8,424 9,462 9,271 October - 15 8,801 10,216 9,528 November - 15 8,660 10,163 9,304 December - 15 8,328 9,987 9,116 January - 16 8,095 9,413 8,968 February - 16 8,221 9,348 8,994 March - 16 8,728 10,004 9,467 April - 16 9,244 10,170 9,800 May - 16 9,000 10,217 9,800 June - 16 9,254 10,140 9,831 July - 16 9,517 10,574 10,094 August - 16 9,741 10,610 10,282 September - 16 9,965 10,654 10,336 October - 16 9,975 10,484 10,327 November - 16 9,848 10,622 10,219 December - 16 9,956 10,875 10,391 January - 17 10,231 11,153 10,579 February - 17 10,414 11,456 10,694 March - 17 10,536 11,614 10,694 April - 17 10,597 11,790 10,861 May - 17 10,699 12,048 11,010 June - 17 10,699 12,114 11,053 July - 17 11,045 12,437 11,243 August - 17 11,157 12,476 11,267 September - 17 11,340 12,747 11,357 October - 17 11,361 13,012 11,392 November - 17 11,326 13,272 11,418 December - 17 11,493 13,468 11,460 January - 18 11,922 14,209 11,617 February - 18 11,493 13,618 11,469 March - 18 11,577 13,344 11,432 April - 18 11,640 13,488 11,440 May - 18 11,514 13,539 11,310 June - 18 11,482 13,515 11,320 July - 18 11,870 13,956 11,466 August - 18 11,639 14,096 11,478 September - 18 11,849 14,200 11,552 October - 18 11,482 13,170 11,324 November - 18 11,587 13,341 11,206 December - 18 11,351 12,368 11,063 January - 19 11,970 13,313 11,516 February - 19 12,209 13,691 11,694 March - 19 12,177 13,886 11,774 April - 19 12,253 14,394 11,928 May - 19 11,927 13,565 11,770 June - 19 12,470 14,456 12,089 July - 19 12,492 14,491 12,107 August - 19 12,101 14,221 12,107 September - 19 12,350 14,560 12,136 October - 19 12,470 14,946 12,249 November - 19 12,405 15,338 12,288 December - 19 12,653 15,858 12,548 January - 20 12,441 15,720 12,544 February - 20 11,946 14,433 12,340 March - 20 10,519 12,573 10,843 April - 20 11,003 13,872 11,387 May - 20 11,297 14,496 11,878 June - 20 11,403 14,915 12,074 July - 20 11,592 15,617 12,665 August - 20 11,745 16,603 12,842 September - 20 11,333 16,049 12,662 October - 20 11,097 15,608 12,701 November - 20 11,970 17,545 13,282 December - 20 12,308 18,329 13,573 January - 21 12,443 18,186 13,598 February - 21 12,614 18,652 13,664 March - 21 12,846 19,299 13,589 April - 21 13,029 20,174 13,794 May - 21 13,297 20,516 13,894 June - 21 13,236 20,751 13,930 July - 21 13,163 20,997 13,934 August - 21 13,236 21,513 14,001 September - 21 13,248 20,617 13,898 October - 21 13,371 21,746 13,823 November - 21 13,151 21,333 13,607 December - 21 13,613 22,278 13,839 January - 22 13,662 21,248 13,466 February - 22 13,712 20,681 13,229 March - 22 13,787 21,229 13,075 April - 22 12,953 19,549 12,499 May - 22 13,164 19,663 12,503 June - 22 12,218 17,980 11,604 July - 22 12,454 19,306 12,135 August - 22 12,230 18,500 11,887 September - 22 11,508 16,756 11,320 October - 22 11,832 17,895 11,569 November - 22 12,604 19,331 12,025 December - 22 12,554 18,529 12,089 January - 23 13,185 19,858 12,583 February - 23 12,850 19,294 12,376 March - 23 13,069 19,955 12,525 April - 23 13,198 20,298 12,673 May - 23 12,709 20,125 12,500 June - 23 12,992 21,323 12,742 July - 23 13,301 22,011 12,937 August - 23 13,031 21,474 12,917 September - 23 12,928 20,543 12,744 October - 23 12,696 19,992 12,612 November - 23 13,147 21,821 13,228 December - 23 13,812 22,861 13,721 January - 24 13,772 23,073 13,721 February - 24 13,665 24,095 13,767 March - 24 14,068 24,936 13,907 April - 24 13,947 24,054 13,777 May - 24 14,444 25,155 13,982
Average Annual Return [Table Text Block]	Annual Average Total Return 1 Year 5 Year 10 Year Sextant Global High Income Fund 13.65% 3.90% 3.75% S&P Global 1200 Index 24.99% 13.13% 9.65% Bloomberg Global High Yield Corp. Index 11.86% 3.50% 3.41%
AssetsNet	$ 9,648,312
Holdings Count | Holding	37
Advisory Fees Paid, Amount	$ 23,902
InvestmentCompanyPortfolioTurnover	2%
Additional Fund Statistics [Text Block]	Key Fund Statistics Total Net Assets $9,648,312 # of Portfolio Holdings 37 Advisory Fees Paid $23,902 Portfolio Turnover Rate 2%
Material Fund Change [Text Block]
Updated Prospectus Phone Number	1-800-728-8762
C000012974
Shareholder Report [Line Items]
Fund Name	Sextant 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 Sextant Growth Fund for the period of December 1, 2023 to May 31, 2024.
Shareholder Report Annual or Semi-Annual	Semi-Annual Shareholder Report
Additional Information Phone Number	1-800-728-8762
Additional Information Email	investorservices@saturna.com</span>" id="sjs-B84">&lt;span style="box-sizing: border-box; color: rgb(68, 68, 68); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;">investorservices@saturna.com&lt;/span>
Additional Information Website	www.saturna.com/sextant/growth-fund
Expenses [Text Block]	What were the Fund’s costs for the last 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 $52.60 0.98%
Expenses Paid, Amount	$ 52.60
Expense Ratio, Percent	0.98%
Line Graph [Table Text Block]	Sextant Growth Fund Investor Shares $29,850 S&P 500 Index $33,028 May - 14 10,000 10,000 June - 14 10,157 10,207 July - 14 10,063 10,066 August - 14 10,556 10,468 September - 14 10,348 10,322 October - 14 10,536 10,574 November - 14 10,892 10,858 December - 14 10,813 10,831 January - 15 10,470 10,506 February - 15 11,148 11,109 March - 15 11,020 10,934 April - 15 10,933 11,039 May - 15 11,028 11,181 June - 15 10,863 10,964 July - 15 11,012 11,194 August - 15 10,313 10,519 September - 15 10,094 10,258 October - 15 10,755 11,124 November - 15 10,797 11,157 December - 15 10,581 10,981 January - 16 9,772 10,436 February - 16 9,507 10,422 March - 16 10,258 11,129 April - 16 10,132 11,172 May - 16 10,222 11,372 June - 16 10,029 11,402 July - 16 10,599 11,822 August - 16 10,550 11,839 September - 16 10,496 11,841 October - 16 10,208 11,625 November - 16 10,450 12,056 December - 16 10,533 12,294 January - 17 10,775 12,527 February - 17 11,245 13,025 March - 17 11,352 13,040 April - 17 11,581 13,174 May - 17 11,725 13,359 June - 17 11,762 13,442 July - 17 11,883 13,719 August - 17 11,972 13,761 September - 17 12,102 14,045 October - 17 12,354 14,372 November - 17 12,815 14,813 December - 17 12,887 14,978 January - 18 13,707 15,836 February - 18 13,467 15,252 March - 18 13,069 14,864 April - 18 13,202 14,921 May - 18 13,668 15,281 June - 18 13,791 15,375 July - 18 14,375 15,947 August - 18 15,185 16,466 September - 18 15,406 16,560 October - 18 13,992 15,428 November - 18 14,090 15,743 December - 18 12,941 14,321 January - 19 13,917 15,469 February - 19 14,412 15,966 March - 19 14,944 16,276 April - 19 15,713 16,935 May - 19 14,650 15,859 June - 19 15,827 16,976 July - 19 16,379 17,220 August - 19 16,291 16,948 September - 19 16,348 17,265 October - 19 16,642 17,639 November - 19 17,164 18,279 December - 19 17,649 18,831 January - 20 17,845 18,823 February - 20 16,555 17,274 March - 20 14,978 15,140 April - 20 16,916 17,081 May - 20 18,031 17,895 June - 20 18,790 18,250 July - 20 20,213 19,279 August - 20 22,082 20,665 September - 20 21,254 19,880 October - 20 20,351 19,351 November - 20 22,225 21,470 December - 20 23,028 22,295 January - 21 22,510 22,070 February - 21 22,622 22,679 March - 21 23,252 23,672 April - 21 24,668 24,935 May - 21 24,491 25,109 June - 21 25,399 25,696 July - 21 26,243 26,306 August - 21 27,007 27,106 September - 21 25,314 25,845 October - 21 27,060 27,656 November - 21 27,445 27,464 December - 21 28,323 28,695 January - 22 26,419 27,210 February - 22 25,453 26,395 March - 22 25,872 27,375 April - 22 23,451 24,988 May - 22 23,136 25,034 June - 22 21,286 22,968 July - 22 23,387 25,085 August - 22 22,147 24,062 September - 22 20,046 21,846 October - 22 21,303 23,615 November - 22 22,537 24,935 December - 22 21,172 23,498 January - 23 22,503 24,975 February - 23 21,786 24,365 March - 23 23,135 25,260 April - 23 23,583 25,654 May - 23 24,078 25,766 June - 23 25,714 27,468 July - 23 26,174 28,350 August - 23 25,756 27,899 September - 23 24,281 26,569 October - 23 23,828 26,010 November - 23 26,024 28,386 December - 23 27,152 29,675 January - 24 27,678 30,174 February - 24 29,206 31,785 March - 24 29,641 32,808 April - 24 28,328 31,468 May - 24 29,850 33,028
Average Annual Return [Table Text Block]	Annual Average Total Return 1 Year 5 Year 10 Year Investor Shares 23.97% 15.30% 11.56% S&P 500 Index 28.19% 15.79% 12.68%
AssetsNet	$ 67,857,920
Holdings Count | Holding	31
Advisory Fees Paid, Amount	$ 164,039
InvestmentCompanyPortfolioTurnover	6%
Additional Fund Statistics [Text Block]	Key Fund Statistics Total Net Assets $67,857,920 # of Portfolio Holdings 31 Advisory Fees Paid $164,039 Portfolio Turnover Rate 6%
Material Fund Change [Text Block]
Updated Prospectus Phone Number	1-800-728-8762
C000188907
Shareholder Report [Line Items]
Fund Name	Sextant 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 Sextant Growth Fund for the period of December 1, 2023 to May 31, 2024.
Shareholder Report Annual or Semi-Annual	Semi-Annual Shareholder Report
Additional Information Phone Number	1-800-728-8762
Additional Information Email	investorservices@saturna.com</span>" id="sjs-B106">&lt;span style="box-sizing: border-box; color: rgb(68, 68, 68); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;">investorservices@saturna.com&lt;/span>
Additional Information Website	www.saturna.com/sextant/growth-fund
Expenses [Text Block]	What were the Fund’s costs for the last 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 $39.75 0.74%
Expenses Paid, Amount	$ 39.75
Expense Ratio, Percent	0.74%
Line Graph [Table Text Block]	Sextant Growth Fund Z Shares $25,792 S&P 500 Index $24,570 June - 17 10,000 10,000 July - 17 10,107 10,206 August - 17 10,178 10,237 September - 17 10,285 10,448 October - 17 10,499 10,692 November - 17 10,893 11,020 December - 17 10,957 11,142 January - 18 11,661 11,780 February - 18 11,455 11,346 March - 18 11,120 11,058 April - 18 11,233 11,100 May - 18 11,631 11,367 June - 18 11,736 11,437 July - 18 12,239 11,863 August - 18 12,930 12,250 September - 18 13,123 12,319 October - 18 11,921 11,477 November - 18 12,004 11,711 December - 18 11,030 10,654 January - 19 11,862 11,508 February - 19 12,291 11,877 March - 19 12,751 12,108 April - 19 13,406 12,598 May - 19 12,503 11,797 June - 19 13,512 12,629 July - 19 13,986 12,810 August - 19 13,915 12,607 September - 19 13,968 12,843 October - 19 14,224 13,122 November - 19 14,671 13,598 December - 19 15,086 14,008 January - 20 15,259 14,003 February - 20 14,161 12,850 March - 20 12,812 11,263 April - 20 14,471 12,707 May - 20 15,428 13,312 June - 20 16,084 13,577 July - 20 17,306 14,342 August - 20 18,906 15,373 September - 20 18,204 14,789 October - 20 17,433 14,396 November - 20 19,042 15,972 December - 20 19,730 16,586 January - 21 19,294 16,418 February - 21 19,386 16,871 March - 21 19,937 17,610 April - 21 21,150 18,550 May - 21 21,003 18,679 June - 21 21,784 19,115 July - 21 22,514 19,569 August - 21 23,176 20,164 September - 21 21,729 19,226 October - 21 23,231 20,573 November - 21 23,566 20,431 December - 21 24,329 21,347 January - 22 22,693 20,242 February - 22 21,870 19,636 March - 22 22,231 20,365 April - 22 20,159 18,589 May - 22 19,888 18,623 June - 22 18,303 17,086 July - 22 20,114 18,661 August - 22 19,050 17,900 September - 22 17,249 16,252 October - 22 18,333 17,567 November - 22 19,397 18,549 December - 22 18,230 17,481 January - 23 19,372 18,579 February - 23 18,765 18,126 March - 23 19,928 18,791 April - 23 20,324 19,084 May - 23 20,756 19,167 June - 23 22,166 20,434 July - 23 22,568 21,090 August - 23 22,213 20,754 September - 23 20,947 19,765 October - 23 20,556 19,349 November - 23 22,459 21,116 December - 23 23,434 22,076 January - 24 23,898 22,447 February - 24 25,221 23,645 March - 24 25,602 24,406 April - 24 24,474 23,409 May - 24 25,792 24,570
Average Annual Return [Table Text Block]	Annual Average Total Return 1 Year 5 Year Since Inception Z Shares 24.26% 15.58% 14.31% S&P 500 Index 28.19% 15.79% 13.62%
AssetsNet	$ 67,857,920
Holdings Count | Holding	31
Advisory Fees Paid, Amount	$ 164,039
InvestmentCompanyPortfolioTurnover	6%
Additional Fund Statistics [Text Block]	Key Fund Statistics Total Net Assets $67,857,920 # of Portfolio Holdings 31 Advisory Fees Paid $164,039 Portfolio Turnover Rate 6%
Material Fund Change [Text Block]
Updated Prospectus Phone Number	1-800-728-8762
C000065110
Shareholder Report [Line Items]
Fund Name	Sextant 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 Sextant International Fund for the period of December 1, 2023 to May 31, 2024.
Shareholder Report Annual or Semi-Annual	Semi-Annual Shareholder Report
Additional Information Phone Number	1-800-728-8762
Additional Information Email	investorservices@saturna.com</span>" id="sjs-B128">&lt;span style="box-sizing: border-box; color: rgb(68, 68, 68); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;">investorservices@saturna.com&lt;/span>
Additional Information Website	www.saturna.com/sextant/international-fund
Expenses [Text Block]	What were the Fund’s costs for the last 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 $50.89 0.96%
Expenses Paid, Amount	$ 50.89
Expense Ratio, Percent	0.96%
Line Graph [Table Text Block]	Sextant International Fund Investor Shares $20,370 MSCI EAFE Index $16,461 May - 14 10,000 10,000 June - 14 10,428 10,099 July - 14 10,159 9,901 August - 14 10,159 9,887 September - 14 9,859 9,511 October - 14 9,682 9,373 November - 14 9,834 9,501 December - 14 9,497 9,175 January - 15 9,459 9,221 February - 15 10,088 9,773 March - 15 9,961 9,633 April - 15 10,387 10,034 May - 15 10,221 9,994 June - 15 9,942 9,714 July - 15 10,018 9,916 August - 15 9,281 9,188 September - 15 8,874 8,725 October - 15 9,389 9,407 November - 15 9,285 9,262 December - 15 8,922 9,139 January - 16 8,599 8,479 February - 16 8,554 8,326 March - 16 9,129 8,875 April - 16 9,188 9,142 May - 16 9,207 9,070 June - 16 9,188 8,770 July - 16 9,673 9,215 August - 16 9,686 9,223 September - 16 9,854 9,340 October - 16 9,563 9,150 November - 16 9,330 8,969 December - 16 9,557 9,277 January - 17 9,865 9,547 February - 17 10,068 9,685 March - 17 10,245 9,962 April - 17 10,389 10,223 May - 17 10,711 10,612 June - 17 10,698 10,597 July - 17 11,150 10,903 August - 17 11,183 10,900 September - 17 11,530 11,176 October - 17 11,615 11,347 November - 17 11,827 11,467 December - 17 11,991 11,653 January - 18 12,569 12,239 February - 18 12,119 11,688 March - 18 12,098 11,489 April - 18 11,941 11,763 May - 18 11,991 11,515 June - 18 11,841 11,378 July - 18 12,491 11,659 August - 18 12,726 11,435 September - 18 12,612 11,539 October - 18 11,612 10,621 November - 18 12,019 10,610 December - 18 11,518 10,097 January - 19 12,321 10,762 February - 19 12,931 11,037 March - 19 13,131 11,119 April - 19 13,541 11,443 May - 19 13,409 10,909 June - 19 13,957 11,560 July - 19 13,996 11,415 August - 19 13,888 11,120 September - 19 13,896 11,445 October - 19 14,104 11,857 November - 19 14,274 11,993 December - 19 14,611 12,384 January - 20 14,595 12,127 February - 20 13,547 11,032 March - 20 11,564 9,571 April - 20 12,251 10,197 May - 20 13,331 10,647 June - 20 13,699 11,014 July - 20 14,339 11,273 August - 20 14,874 11,854 September - 20 14,658 11,551 October - 20 14,147 11,091 November - 20 15,690 12,812 December - 20 16,815 13,410 January - 21 16,702 13,268 February - 21 16,301 13,567 March - 21 16,542 13,892 April - 21 17,368 14,322 May - 21 17,489 14,802 June - 21 17,962 14,640 July - 21 19,174 14,752 August - 21 20,017 15,013 September - 21 18,733 14,589 October - 21 19,263 14,951 November - 21 18,853 14,257 December - 21 19,759 14,989 January - 22 17,634 14,265 February - 22 17,268 14,015 March - 22 17,625 14,121 April - 22 16,187 13,219 May - 22 15,970 13,337 June - 22 14,637 12,103 July - 22 15,891 12,707 August - 22 14,819 12,105 September - 22 13,661 10,978 October - 22 14,366 11,569 November - 22 15,787 12,874 December - 22 15,290 12,888 January - 23 16,492 13,933 February - 23 15,996 13,644 March - 23 17,059 14,000 April - 23 17,128 14,409 May - 23 16,693 13,818 June - 23 17,285 14,451 July - 23 17,494 14,920 August - 23 17,076 14,350 September - 23 16,240 13,866 October - 23 16,222 13,306 November - 23 18,182 14,543 December - 23 19,085 15,318 January - 24 19,574 15,407 February - 24 20,273 15,692 March - 24 20,440 16,226 April - 24 19,469 15,827 May - 24 20,370 16,461
Average Annual Return [Table Text Block]	Annual Average Total Return 1 Year 5 Year 10 Year Investor Shares 22.03% 8.72% 7.37% MSCI EAFE Index 19.12% 8.57% 5.10%
AssetsNet	$ 76,980,121
Holdings Count | Holding	34
Advisory Fees Paid, Amount	$ 181,027
InvestmentCompanyPortfolioTurnover	6%
Additional Fund Statistics [Text Block]	Key Fund Statistics Total Net Assets $76,980,121 # of Portfolio Holdings 34 Advisory Fees Paid $181,027 Portfolio Turnover Rate 6%
Material Fund Change [Text Block]
Updated Prospectus Phone Number	1-800-728-8762
C000188908
Shareholder Report [Line Items]
Fund Name	Sextant 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 Sextant International Fund for the period of December 1, 2023 to May 31, 2024.
Shareholder Report Annual or Semi-Annual	Semi-Annual Shareholder Report
Additional Information Phone Number	1-800-728-8762
Additional Information Email	investorservices@saturna.com</span>" id="sjs-B150">&lt;span style="box-sizing: border-box; color: rgb(68, 68, 68); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;">investorservices@saturna.com&lt;/span>
Additional Information Website	www.saturna.com/sextant/international-fund
Expenses [Text Block]	What were the Fund’s costs for the last 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 $38.19 0.72%
Expenses Paid, Amount	$ 38.19
Expense Ratio, Percent	0.72%
Line Graph [Table Text Block]	Sextant International Fund Z Shares $19,355 MSCI EAFE Index $15,534 June - 17 10,000 10,000 July - 17 10,435 10,289 August - 17 10,459 10,287 September - 17 10,783 10,547 October - 17 10,869 10,708 November - 17 11,073 10,821 December - 17 11,229 10,997 January - 18 11,777 11,549 February - 18 11,349 11,030 March - 18 11,329 10,842 April - 18 11,189 11,101 May - 18 11,236 10,867 June - 18 11,102 10,737 July - 18 11,717 11,002 August - 18 11,937 10,791 September - 18 11,831 10,889 October - 18 10,895 10,023 November - 18 11,276 10,012 December - 18 10,813 9,528 January - 19 11,566 10,156 February - 19 12,138 10,416 March - 19 12,333 10,493 April - 19 12,717 10,798 May - 19 12,601 10,295 June - 19 13,116 10,909 July - 19 13,152 10,772 August - 19 13,058 10,494 September - 19 13,065 10,800 October - 19 13,268 11,189 November - 19 13,434 11,317 December - 19 13,752 11,687 January - 20 13,737 11,444 February - 20 12,752 10,411 March - 20 10,888 9,032 April - 20 11,534 9,623 May - 20 12,557 10,048 June - 20 12,903 10,394 July - 20 13,504 10,638 August - 20 14,016 11,187 September - 20 13,820 10,901 October - 20 13,339 10,467 November - 20 14,790 12,090 December - 20 15,859 12,655 January - 21 15,753 12,521 February - 21 15,368 12,803 March - 21 15,602 13,110 April - 21 16,381 13,515 May - 21 16,502 13,969 June - 21 16,956 13,816 July - 21 18,098 13,921 August - 21 18,900 14,168 September - 21 17,690 13,767 October - 21 18,196 14,109 November - 21 17,811 13,454 December - 21 18,657 14,145 January - 22 16,658 13,462 February - 22 16,321 13,225 March - 22 16,658 13,326 April - 22 15,301 12,475 May - 22 15,104 12,586 June - 22 13,845 11,421 July - 22 15,030 11,991 August - 22 14,018 11,423 September - 22 12,932 10,360 October - 22 13,598 10,918 November - 22 14,939 12,149 December - 22 14,478 12,163 January - 23 15,613 13,149 February - 23 15,153 12,876 March - 23 16,156 13,211 April - 23 16,230 13,598 May - 23 15,819 13,040 June - 23 16,387 13,637 July - 23 16,584 14,080 August - 23 16,197 13,542 September - 23 15,400 13,086 October - 23 15,391 12,557 November - 23 17,259 13,724 December - 23 18,115 14,455 January - 24 18,578 14,540 February - 24 19,248 14,808 March - 24 19,413 15,312 April - 24 18,487 14,936 May - 24 19,355 15,534
Average Annual Return [Table Text Block]	Annual Average Total Return 1 Year 5 Year Since Inception Z Shares 22.35% 8.96% 0.00 MSCI EAFE Index 19.12% 8.57% 6.26%
AssetsNet	$ 76,980,121
Holdings Count | Holding	34
Advisory Fees Paid, Amount	$ 181,027
InvestmentCompanyPortfolioTurnover	6%
Additional Fund Statistics [Text Block]	Key Fund Statistics Total Net Assets $76,980,121 # of Portfolio Holdings 34 Advisory Fees Paid $181,027 Portfolio Turnover Rate 6%
Material Fund Change [Text Block]
Updated Prospectus Phone Number	1-800-728-8762
C000065112
Shareholder Report [Line Items]
Fund Name	Sextant Short-Term Bond Fund
Class Name	SEXTANT SHORT-TERM BOND
Trading Symbol	STBFX
Annual or Semi-Annual Statement [Text Block]	This Semi-Annual Shareholder Report contains important information about the Sextant Short-Term Bond Fund for the period of December 1, 2023 to May 31, 2024.
Shareholder Report Annual or Semi-Annual	Semi-Annual Shareholder Report
Additional Information Phone Number	1-800-728-8762
Additional Information Email	investorservices@saturna.com</span>" id="sjs-B172">&lt;span style="box-sizing: border-box; color: rgb(68, 68, 68); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;">investorservices@saturna.com&lt;/span>
Additional Information Website	www.saturna.com/sextant/short-term-bond-fund
Expenses [Text Block]	What were the Fund’s costs for the last 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 Sextant Short-Term Bond $30.29 0.60%
Expenses Paid, Amount	$ 30.29
Expense Ratio, Percent	0.60%
Line Graph [Table Text Block]	Sextant Short-Term Bond Fund $11,159 Bloomberg US Aggregate 1-3 Year Index $11,352 Bloomberg US Aggregate Bond Index $11,329 May - 14 10,000 10,000 10,000 June - 14 9,989 9,996 10,005 July - 14 9,978 9,990 9,980 August - 14 10,006 10,007 10,090 September - 14 9,996 10,000 10,022 October - 14 10,026 10,029 10,120 November - 14 10,015 10,043 10,192 December - 14 9,965 10,018 10,202 January - 15 10,033 10,069 10,415 February - 15 10,020 10,054 10,318 March - 15 10,030 10,077 10,365 April - 15 10,058 10,086 10,328 May - 15 10,066 10,094 10,303 June - 15 10,055 10,091 10,191 July - 15 10,065 10,097 10,262 August - 15 10,054 10,091 10,247 September - 15 10,063 10,121 10,316 October - 15 10,092 10,117 10,318 November - 15 10,082 10,098 10,291 December - 15 10,072 10,084 10,258 January - 16 10,101 10,137 10,399 February - 16 10,090 10,147 10,473 March - 16 10,160 10,183 10,569 April - 16 10,189 10,197 10,609 May - 16 10,179 10,191 10,612 June - 16 10,226 10,252 10,803 July - 16 10,235 10,254 10,871 August - 16 10,245 10,243 10,859 September - 16 10,253 10,255 10,852 October - 16 10,261 10,252 10,769 November - 16 10,188 10,210 10,514 December - 16 10,219 10,216 10,529 January - 17 10,230 10,235 10,550 February - 17 10,241 10,252 10,621 March - 17 10,254 10,258 10,615 April - 17 10,264 10,277 10,697 May - 17 10,297 10,295 10,779 June - 17 10,289 10,290 10,769 July - 17 10,320 10,317 10,815 August - 17 10,330 10,338 10,912 September - 17 10,319 10,326 10,860 October - 17 10,308 10,323 10,866 November - 17 10,276 10,301 10,852 December - 17 10,270 10,305 10,902 January - 18 10,241 10,277 10,777 February - 18 10,210 10,267 10,674 March - 18 10,221 10,284 10,743 April - 18 10,213 10,273 10,663 May - 18 10,247 10,312 10,739 June - 18 10,238 10,313 10,726 July - 18 10,251 10,319 10,728 August - 18 10,285 10,355 10,797 September - 18 10,297 10,348 10,728 October - 18 10,291 10,359 10,643 November - 18 10,303 10,389 10,707 December - 18 10,381 10,470 10,903 January - 19 10,437 10,511 11,019 February - 19 10,450 10,528 11,013 March - 19 10,550 10,597 11,224 April - 19 10,566 10,621 11,227 May - 19 10,603 10,696 11,426 June - 19 10,681 10,755 11,570 July - 19 10,677 10,751 11,595 August - 19 10,756 10,836 11,896 September - 19 10,729 10,831 11,833 October - 19 10,787 10,867 11,868 November - 19 10,781 10,868 11,862 December - 19 10,798 10,893 11,854 January - 20 10,878 10,954 12,082 February - 20 10,957 11,043 12,299 March - 20 10,782 11,088 12,227 April - 20 10,968 11,148 12,444 May - 20 11,068 11,169 12,502 June - 20 11,104 11,185 12,581 July - 20 11,162 11,202 12,769 August - 20 11,154 11,204 12,666 September - 20 11,147 11,203 12,659 October - 20 11,118 11,202 12,602 November - 20 11,154 11,213 12,726 December - 20 11,166 11,228 12,744 January - 21 11,157 11,232 12,652 February - 21 11,104 11,225 12,470 March - 21 11,072 11,220 12,314 April - 21 11,104 11,229 12,411 May - 21 11,137 11,242 12,452 June - 21 11,120 11,225 12,539 July - 21 11,152 11,245 12,679 August - 21 11,139 11,245 12,655 September - 21 11,104 11,236 12,546 October - 21 11,069 11,199 12,542 November - 21 11,056 11,190 12,579 December - 21 11,043 11,173 12,547 January - 22 10,943 11,093 12,277 February - 22 10,885 11,043 12,140 March - 22 10,764 10,893 11,803 April - 22 10,665 10,832 11,355 May - 22 10,720 10,899 11,428 June - 22 10,644 10,823 11,249 July - 22 10,743 10,881 11,523 August - 22 10,645 10,794 11,198 September - 22 10,504 10,661 10,714 October - 22 10,495 10,647 10,575 November - 22 10,597 10,735 10,964 December - 22 10,616 10,757 10,915 January - 23 10,697 10,844 11,251 February - 23 10,623 10,763 10,960 March - 23 10,753 10,919 11,238 April - 23 10,790 10,957 11,306 May - 23 10,765 10,924 11,183 June - 23 10,760 10,880 11,143 July - 23 10,801 10,926 11,135 August - 23 10,818 10,967 11,064 September - 23 10,814 10,960 10,783 October - 23 10,834 10,995 10,613 November - 23 10,945 11,123 11,094 December - 23 11,036 11,257 11,518 January - 24 11,083 11,301 11,487 February - 24 11,062 11,262 11,324 March - 24 11,108 11,308 11,429 April - 24 11,087 11,270 11,140 May - 24 11,159 11,352 11,329
Average Annual Return [Table Text Block]	Annual Average Total Return 1 Year 5 Year 10 Year Sextant Short-Term Bond 3.66% 1.03% 1.10% Bloomberg US Aggregate 1-3 Year Index 3.92% 1.20% 1.27% Bloomberg US Aggregate Bond Index 1.31% -0.17% 1.25%
AssetsNet	$ 10,827,122
Holdings Count | Holding	37
Advisory Fees Paid, Amount	$ 27,275
InvestmentCompanyPortfolioTurnover	11%
Additional Fund Statistics [Text Block]	Key Fund Statistics Total Net Assets $10,827,122 # of Portfolio Holdings 37 Advisory Fees Paid $27,275 Portfolio Turnover Rate 11%
Material Fund Change [Text Block]
Updated Prospectus Phone Number	1-800-728-8762
C000153268
Shareholder Report [Line Items]
Fund Name	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 Sustainable Bond Fund for the period of December 1, 2023 to May 31, 2024.
Shareholder Report Annual or Semi-Annual	Semi-Annual Shareholder Report
Additional Information Phone Number	1-800-728-8762
Additional Information Email	investorservices@saturna.com</span>" id="sjs-B194">&lt;span style="box-sizing: border-box; color: rgb(68, 68, 68); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;">investorservices@saturna.com&lt;/span>
Additional Information Website	www.saturna.com/sustainable/bond-fund
Expenses [Text Block]	What were the Fund’s costs for the last 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 $33.01 0.65%
Expenses Paid, Amount	$ 33.01
Expense Ratio, Percent	0.65%
Line Graph [Table Text Block]	Sustainable Bond Fund $11,232 FTSE WorldBIG Bond Index $10,128 March - 15 10,000 10,000 April - 15 9,945 10,103 May - 15 9,960 9,926 June - 15 9,856 9,878 July - 15 9,893 9,924 August - 15 9,839 9,953 September - 15 9,856 10,001 October - 15 9,894 10,009 November - 15 9,871 9,838 December - 15 9,809 9,896 January - 16 9,837 10,002 February - 16 9,744 10,199 March - 16 9,938 10,468 April - 16 9,996 10,574 May - 16 9,988 10,453 June - 16 10,099 10,724 July - 16 10,191 10,807 August - 16 10,224 10,757 September - 16 10,244 10,806 October - 16 10,257 10,521 November - 16 10,006 10,122 December - 16 9,990 10,088 January - 17 10,140 10,173 February - 17 10,214 10,212 March - 17 10,271 10,223 April - 17 10,291 10,355 May - 17 10,400 10,527 June - 17 10,496 10,524 July - 17 10,628 10,704 August - 17 10,628 10,816 September - 17 10,621 10,727 October - 17 10,519 10,688 November - 17 10,534 10,804 December - 17 10,579 10,838 January - 18 10,696 10,952 February - 18 10,600 10,842 March - 18 10,614 10,971 April - 18 10,565 10,804 May - 18 10,484 10,699 June - 18 10,442 10,674 July - 18 10,547 10,662 August - 18 10,531 10,663 September - 18 10,566 10,578 October - 18 10,425 10,449 November - 18 10,293 10,485 December - 18 10,244 10,695 January - 19 10,503 10,847 February - 19 10,517 10,788 March - 19 10,621 10,928 April - 19 10,680 10,907 May - 19 10,673 11,053 June - 19 10,816 11,298 July - 19 10,856 11,268 August - 19 10,946 11,508 September - 19 10,912 11,390 October - 19 10,978 11,470 November - 19 10,920 11,381 December - 19 10,969 11,431 January - 20 11,047 11,594 February - 20 11,079 11,676 March - 20 10,760 11,468 April - 20 10,927 11,662 May - 20 11,097 11,737 June - 20 11,191 11,844 July - 20 11,452 12,250 August - 20 11,455 12,210 September - 20 11,363 12,161 October - 20 11,319 12,145 November - 20 11,637 12,361 December - 20 11,717 12,514 January - 21 11,672 12,388 February - 21 11,570 12,157 March - 21 11,513 11,926 April - 21 11,650 12,069 May - 21 11,741 12,163 June - 21 11,707 12,075 July - 21 11,752 12,236 August - 21 11,741 12,179 September - 21 11,627 11,954 October - 21 11,570 11,916 November - 21 11,411 11,871 December - 21 11,496 11,836 January - 22 11,309 11,570 February - 22 11,204 11,405 March - 22 11,088 11,059 April - 22 10,820 10,434 May - 22 10,855 10,465 June - 22 10,598 10,138 July - 22 10,726 10,356 August - 22 10,610 9,932 September - 22 10,295 9,412 October - 22 10,295 9,367 November - 22 10,517 9,815 December - 22 10,514 9,808 January - 23 10,760 10,137 February - 23 10,584 9,813 March - 23 10,784 10,134 April - 23 10,854 10,205 May - 23 10,760 10,002 June - 23 10,913 10,025 July - 23 11,007 10,075 August - 23 10,854 9,954 September - 23 10,643 9,641 October - 23 10,514 9,526 November - 23 10,889 10,018 December - 23 11,244 10,439 January - 24 11,195 10,316 February - 24 11,159 10,174 March - 24 11,256 10,245 April - 24 11,061 9,986 May - 24 11,232 10,128
Average Annual Return [Table Text Block]	Annual Average Total Return 1 Year 5 Year Since Inception Sustainable Bond 4.38% 1.03% 1.27% FTSE WorldBIG Bond Index 1.26% -1.73% 0.10%
AssetsNet	$ 33,343,240
Holdings Count | Holding	42
Advisory Fees Paid, Amount	$ 86,593
InvestmentCompanyPortfolioTurnover	7%
Additional Fund Statistics [Text Block]	Key Fund Statistics Total Net Assets $33,343,240 # of Portfolio Holdings 42 Advisory Fees Paid $86,593 Portfolio Turnover Rate 7%
Material Fund Change [Text Block]
Updated Prospectus Phone Number	1-800-728-8762
C000153267
Shareholder Report [Line Items]
Fund Name	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 Sustainable Equity Fund for the period of December 1, 2023 to May 31, 2024.
Shareholder Report Annual or Semi-Annual	Semi-Annual Shareholder Report
Additional Information Phone Number	1-800-728-8762
Additional Information Email	investorservices@saturna.com</span>" id="sjs-B216">&lt;span style="box-sizing: border-box; color: rgb(68, 68, 68); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;">investorservices@saturna.com&lt;/span>
Additional Information Website	www.saturna.com/sustainable/equity-fund
Expenses [Text Block]	What were the Fund’s costs for the last 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 $40.01 0.75%
Expenses Paid, Amount	$ 40.01
Expense Ratio, Percent	0.75%
Line Graph [Table Text Block]	Sustainable Equity Fund $20,139 S&P Global 1200 Index $24,440 March - 15 10,000 10,000 April - 15 9,960 10,279 May - 15 10,000 10,304 June - 15 9,790 10,060 July - 15 9,800 10,196 August - 15 9,118 9,531 September - 15 9,018 9,193 October - 15 9,579 9,925 November - 15 9,759 9,874 December - 15 9,599 9,703 January - 16 9,047 9,146 February - 16 9,017 9,082 March - 16 9,408 9,720 April - 16 9,328 9,881 May - 16 9,378 9,927 June - 16 9,208 9,852 July - 16 9,609 10,273 August - 16 9,749 10,308 September - 16 9,810 10,351 October - 16 9,629 10,186 November - 16 9,459 10,320 December - 16 9,462 10,566 January - 17 9,654 10,836 February - 17 9,987 11,130 March - 17 10,219 11,284 April - 17 10,410 11,455 May - 17 10,673 11,706 June - 17 10,703 11,770 July - 17 10,905 12,084 August - 17 10,975 12,121 September - 17 11,106 12,384 October - 17 11,449 12,643 November - 17 11,540 12,895 December - 17 11,711 13,085 January - 18 12,310 13,805 February - 18 11,955 13,231 March - 18 11,843 12,964 April - 18 11,782 13,104 May - 18 11,975 13,154 June - 18 11,955 13,131 July - 18 12,300 13,559 August - 18 12,564 13,696 September - 18 12,514 13,797 October - 18 11,487 12,795 November - 18 11,700 12,962 December - 18 11,036 12,016 January - 19 11,775 12,935 February - 19 12,185 13,301 March - 19 12,472 13,491 April - 19 13,149 13,985 May - 19 12,452 13,179 June - 19 13,241 14,045 July - 19 13,323 14,079 August - 19 13,241 13,817 September - 19 13,334 14,146 October - 19 13,580 14,521 November - 19 13,929 14,902 December - 19 14,452 15,407 January - 20 14,369 15,273 February - 20 13,596 14,022 March - 20 12,329 12,215 April - 20 13,287 13,478 May - 20 14,153 14,084 June - 20 14,741 14,491 July - 20 15,854 15,173 August - 20 16,617 16,131 September - 20 16,390 15,593 October - 20 15,813 15,165 November - 20 17,235 17,046 December - 20 17,977 17,808 January - 21 17,729 17,669 February - 21 17,553 18,122 March - 21 18,142 18,750 April - 21 18,691 19,600 May - 21 18,887 19,932 June - 21 18,980 20,161 July - 21 19,353 20,400 August - 21 19,839 20,902 September - 21 18,804 20,031 October - 21 19,570 21,128 November - 21 19,187 20,726 December - 21 20,007 21,645 January - 22 18,560 20,643 February - 22 17,706 20,093 March - 22 17,769 20,625 April - 22 16,645 18,993 May - 22 16,645 19,104 June - 22 15,354 17,468 July - 22 16,384 18,757 August - 22 15,260 17,974 September - 22 14,084 16,280 October - 22 14,885 17,386 November - 22 16,124 18,782 December - 22 15,727 18,002 January - 23 16,557 19,293 February - 23 16,147 18,746 March - 23 16,840 19,387 April - 23 17,198 19,721 May - 23 16,630 19,553 June - 23 17,418 20,717 July - 23 17,649 21,385 August - 23 17,229 20,863 September - 23 16,494 19,959 October - 23 16,252 19,423 November - 23 17,765 21,201 December - 23 18,686 22,212 January - 24 19,025 22,417 February - 24 19,853 23,410 March - 24 19,991 24,227 April - 24 19,227 23,370 May - 24 20,139 24,440
Average Annual Return [Table Text Block]	Annual Average Total Return 1 Year 5 Year Since Inception Sustainable Equity 21.10% 10.09% 7.90% S&P Global 1200 Index 24.99% 13.13% 10.20%
AssetsNet	$ 24,587,651
Holdings Count | Holding	48
Advisory Fees Paid, Amount	$ 75,568
InvestmentCompanyPortfolioTurnover	6%
Additional Fund Statistics [Text Block]	Key Fund Statistics Total Net Assets $24,587,651 # of Portfolio Holdings 48 Advisory Fees Paid $75,568 Portfolio Turnover Rate 6%
Material Fund Change [Text Block]
Updated Prospectus Phone Number	1-800-728-8762

Shareholder Report, Line Graph

Shareholder Report, Line Graph (Details) - USD ($)	6 Months Ended
	May 31, 2024	Apr. 30, 2024	Mar. 31, 2024	Feb. 29, 2024	Jan. 31, 2024	Dec. 31, 2023	Nov. 30, 2023	Oct. 31, 2023	Sep. 30, 2023	Aug. 31, 2023	Jul. 31, 2023	Jun. 30, 2023	May 31, 2023	Apr. 30, 2023	Mar. 31, 2023	Feb. 28, 2023	Jan. 31, 2023	Dec. 31, 2022	Nov. 30, 2022	Oct. 31, 2022	Sep. 30, 2022	Aug. 31, 2022	Jul. 31, 2022	Jun. 30, 2022	May 31, 2022	Apr. 30, 2022	Mar. 31, 2022	Feb. 28, 2022	Jan. 31, 2022	Dec. 31, 2021	Nov. 30, 2021	Oct. 31, 2021	Sep. 30, 2021	Aug. 31, 2021	Jul. 31, 2021	Jun. 30, 2021	May 31, 2021	Apr. 30, 2021	Mar. 31, 2021	Feb. 28, 2021	Jan. 31, 2021	Dec. 31, 2020	Nov. 30, 2020	Oct. 31, 2020	Sep. 30, 2020	Aug. 31, 2020	Jul. 31, 2020	Jun. 30, 2020	May 31, 2020	Apr. 30, 2020	Mar. 31, 2020	Feb. 29, 2020	Jan. 31, 2020	Dec. 31, 2019	Nov. 30, 2019	Oct. 31, 2019	Sep. 30, 2019	Aug. 31, 2019	Jul. 31, 2019	Jun. 30, 2019	May 31, 2019	Apr. 30, 2019	Mar. 31, 2019	Feb. 28, 2019	Jan. 31, 2019	Dec. 31, 2018	Nov. 30, 2018	Oct. 31, 2018	Sep. 30, 2018	Aug. 31, 2018	Jul. 31, 2018	Jun. 30, 2018	May 31, 2018	Apr. 30, 2018	Mar. 31, 2018	Feb. 28, 2018	Jan. 31, 2018	Dec. 31, 2017	Nov. 30, 2017	Oct. 31, 2017	Sep. 30, 2017	Aug. 31, 2017	Jul. 31, 2017	Jun. 30, 2017	May 31, 2017	Apr. 30, 2017	Mar. 31, 2017	Feb. 28, 2017	Jan. 31, 2017	Dec. 31, 2016	Nov. 30, 2016	Oct. 31, 2016	Sep. 30, 2016	Aug. 31, 2016	Jul. 31, 2016	Jun. 30, 2016	May 31, 2016	Apr. 30, 2016	Mar. 31, 2016	Feb. 29, 2016	Jan. 31, 2016	Dec. 31, 2015	Nov. 30, 2015	Oct. 31, 2015	Sep. 30, 2015	Aug. 31, 2015	Jul. 31, 2015	Jun. 30, 2015	May 31, 2015	Apr. 30, 2015	Mar. 31, 2015	Feb. 28, 2015	Jan. 31, 2015	Dec. 31, 2014	Nov. 30, 2014	Oct. 31, 2014	Sep. 30, 2014	Aug. 31, 2014	Jul. 31, 2014	Jun. 30, 2014	May 31, 2014
C000065113
Account Value [Line Items]
Line Graph and Table Measure Name	Sextant Bond Income Fund
Account Value	$ 10,931	$ 10,749	$ 11,078	$ 10,950	$ 11,125	$ 11,199	$ 10,747	$ 10,221	$ 10,418	$ 10,765	$ 10,837	$ 10,860	$ 10,884	$ 11,055	$ 10,980	$ 10,610	$ 10,954	$ 10,610	$ 10,656	$ 10,193	$ 10,362	$ 10,991	$ 11,425	$ 11,061	$ 11,253	$ 11,227	$ 11,826	$ 12,184	$ 12,401	$ 12,782	$ 12,829	$ 12,733	$ 12,709	$ 12,921	$ 12,967	$ 12,753	$ 12,517	$ 12,421	$ 12,257	$ 12,536	$ 12,887	$ 13,094	$ 13,116	$ 12,906	$ 13,021	$ 13,022	$ 13,227	$ 12,856	$ 12,738	$ 12,641	$ 12,203	$ 12,631	$ 12,399	$ 12,030	$ 12,091	$ 12,085	$ 12,034	$ 12,141	$ 11,776	$ 11,722	$ 11,518	$ 11,311	$ 11,304	$ 11,055	$ 11,052	$ 10,914	$ 10,752	$ 10,703	$ 10,802	$ 10,884	$ 10,789	$ 10,780	$ 10,840	$ 10,725	$ 10,846	$ 10,774	$ 10,876	$ 11,039	$ 10,947	$ 10,985	$ 10,956	$ 11,014	$ 10,900	$ 10,828	$ 10,821	$ 10,687	$ 10,624	$ 10,637	$ 10,528	$ 10,499	$ 10,474	$ 10,821	$ 10,940	$ 10,978	$ 10,973	$ 10,867	$ 10,557	$ 10,529	$ 10,485	$ 10,335	$ 10,229	$ 10,105	$ 10,178	$ 10,169	$ 10,260	$ 10,193	$ 10,244	$ 10,176	$ 10,307	$ 10,320	$ 10,411	$ 10,361	$ 10,514	$ 10,255	$ 10,227	$ 10,145	$ 10,041	$ 10,151	$ 10,012	$ 10,005	$ 10,000
C000065111
Account Value [Line Items]
Line Graph and Table Measure Name	Sextant Core Fund
Account Value	$ 17,078	16,538	16,922	16,434	16,039	16,112	15,559	14,772	15,007	15,518	15,692	15,487	14,996	15,272	15,078	14,649	15,048	14,669	14,978	14,212	13,578	14,333	14,766	14,212	14,998	14,948	15,723	15,542	15,854	16,368	15,820	15,791	15,244	15,722	15,615	15,439	15,478	15,253	14,951	14,550	14,482	14,599	14,259	13,412	13,652	13,835	13,489	13,007	12,892	12,535	11,650	12,612	13,209	13,229	12,996	12,841	12,669	12,569	12,487	12,433	11,861	12,315	11,961	11,852	11,543	11,025	11,487	11,344	11,899	11,890	11,756	11,326	11,380	11,237	11,317	11,451	11,827	11,559	11,477	11,360	11,183	10,989	10,883	10,803	10,750	10,591	10,538	10,468	10,203	10,088	9,967	9,976	10,219	10,237	10,280	10,037	10,002	9,880	9,741	9,323	9,358	9,680	9,793	9,813	9,467	9,607	9,986	9,978	10,209	10,274	10,200	10,258	10,011	10,110	10,242	10,136	10,056	10,168	9,968	10,144	10,000
C000112018
Account Value [Line Items]
Line Graph and Table Measure Name	Sextant Global High Income Fund
Account Value	$ 14,444	13,947	14,068	13,665	13,772	13,812	13,147	12,696	12,928	13,031	13,301	12,992	12,709	13,198	13,069	12,850	13,185	12,554	12,604	11,832	11,508	12,230	12,454	12,218	13,164	12,953	13,787	13,712	13,662	13,613	13,151	13,371	13,248	13,236	13,163	13,236	13,297	13,029	12,846	12,614	12,443	12,308	11,970	11,097	11,333	11,745	11,592	11,403	11,297	11,003	10,519	11,946	12,441	12,653	12,405	12,470	12,350	12,101	12,492	12,470	11,927	12,253	12,177	12,209	11,970	11,351	11,587	11,482	11,849	11,639	11,870	11,482	11,514	11,640	11,577	11,493	11,922	11,493	11,326	11,361	11,340	11,157	11,045	10,699	10,699	10,597	10,536	10,414	10,231	9,956	9,848	9,975	9,965	9,741	9,517	9,254	9,000	9,244	8,728	8,221	8,095	8,328	8,660	8,801	8,424	8,875	9,160	9,400	9,639	9,869	9,455	9,722	9,519	9,574	9,713	9,639	9,745	10,097	9,903	10,132	10,000
C000012974
Account Value [Line Items]
Line Graph and Table Measure Name	Sextant Growth Fund Investor Shares
Account Value	$ 29,850	28,328	29,641	29,206	27,678	27,152	26,024	23,828	24,281	25,756	26,174	25,714	24,078	23,583	23,135	21,786	22,503	21,172	22,537	21,303	20,046	22,147	23,387	21,286	23,136	23,451	25,872	25,453	26,419	28,323	27,445	27,060	25,314	27,007	26,243	25,399	24,491	24,668	23,252	22,622	22,510	23,028	22,225	20,351	21,254	22,082	20,213	18,790	18,031	16,916	14,978	16,555	17,845	17,649	17,164	16,642	16,348	16,291	16,379	15,827	14,650	15,713	14,944	14,412	13,917	12,941	14,090	13,992	15,406	15,185	14,375	13,791	13,668	13,202	13,069	13,467	13,707	12,887	12,815	12,354	12,102	11,972	11,883	11,762	11,725	11,581	11,352	11,245	10,775	10,533	10,450	10,208	10,496	10,550	10,599	10,029	10,222	10,132	10,258	9,507	9,772	10,581	10,797	10,755	10,094	10,313	11,012	10,863	11,028	10,933	11,020	11,148	10,470	10,813	10,892	10,536	10,348	10,556	10,063	10,157	10,000
C000188907
Account Value [Line Items]
Line Graph and Table Measure Name	Sextant Growth Fund Z Shares
Account Value	$ 25,792	24,474	25,602	25,221	23,898	23,434	22,459	20,556	20,947	22,213	22,568	22,166	20,756	20,324	19,928	18,765	19,372	18,230	19,397	18,333	17,249	19,050	20,114	18,303	19,888	20,159	22,231	21,870	22,693	24,329	23,566	23,231	21,729	23,176	22,514	21,784	21,003	21,150	19,937	19,386	19,294	19,730	19,042	17,433	18,204	18,906	17,306	16,084	15,428	14,471	12,812	14,161	15,259	15,086	14,671	14,224	13,968	13,915	13,986	13,512	12,503	13,406	12,751	12,291	11,862	11,030	12,004	11,921	13,123	12,930	12,239	11,736	11,631	11,233	11,120	11,455	11,661	10,957	10,893	10,499	10,285	10,178	10,107	10,000
C000065110
Account Value [Line Items]
Line Graph and Table Measure Name	Sextant International Fund Investor Shares
Account Value	$ 20,370	19,469	20,440	20,273	19,574	19,085	18,182	16,222	16,240	17,076	17,494	17,285	16,693	17,128	17,059	15,996	16,492	15,290	15,787	14,366	13,661	14,819	15,891	14,637	15,970	16,187	17,625	17,268	17,634	19,759	18,853	19,263	18,733	20,017	19,174	17,962	17,489	17,368	16,542	16,301	16,702	16,815	15,690	14,147	14,658	14,874	14,339	13,699	13,331	12,251	11,564	13,547	14,595	14,611	14,274	14,104	13,896	13,888	13,996	13,957	13,409	13,541	13,131	12,931	12,321	11,518	12,019	11,612	12,612	12,726	12,491	11,841	11,991	11,941	12,098	12,119	12,569	11,991	11,827	11,615	11,530	11,183	11,150	10,698	10,711	10,389	10,245	10,068	9,865	9,557	9,330	9,563	9,854	9,686	9,673	9,188	9,207	9,188	9,129	8,554	8,599	8,922	9,285	9,389	8,874	9,281	10,018	9,942	10,221	10,387	9,961	10,088	9,459	9,497	9,834	9,682	9,859	10,159	10,159	10,428	10,000
C000188908
Account Value [Line Items]
Line Graph and Table Measure Name	Sextant International Fund Z Shares
Account Value	$ 19,355	18,487	19,413	19,248	18,578	18,115	17,259	15,391	15,400	16,197	16,584	16,387	15,819	16,230	16,156	15,153	15,613	14,478	14,939	13,598	12,932	14,018	15,030	13,845	15,104	15,301	16,658	16,321	16,658	18,657	17,811	18,196	17,690	18,900	18,098	16,956	16,502	16,381	15,602	15,368	15,753	15,859	14,790	13,339	13,820	14,016	13,504	12,903	12,557	11,534	10,888	12,752	13,737	13,752	13,434	13,268	13,065	13,058	13,152	13,116	12,601	12,717	12,333	12,138	11,566	10,813	11,276	10,895	11,831	11,937	11,717	11,102	11,236	11,189	11,329	11,349	11,777	11,229	11,073	10,869	10,783	10,459	10,435	10,000
C000065112
Account Value [Line Items]
Line Graph and Table Measure Name	Sextant Short-Term Bond Fund
Account Value	$ 11,159	11,087	11,108	11,062	11,083	11,036	10,945	10,834	10,814	10,818	10,801	10,760	10,765	10,790	10,753	10,623	10,697	10,616	10,597	10,495	10,504	10,645	10,743	10,644	10,720	10,665	10,764	10,885	10,943	11,043	11,056	11,069	11,104	11,139	11,152	11,120	11,137	11,104	11,072	11,104	11,157	11,166	11,154	11,118	11,147	11,154	11,162	11,104	11,068	10,968	10,782	10,957	10,878	10,798	10,781	10,787	10,729	10,756	10,677	10,681	10,603	10,566	10,550	10,450	10,437	10,381	10,303	10,291	10,297	10,285	10,251	10,238	10,247	10,213	10,221	10,210	10,241	10,270	10,276	10,308	10,319	10,330	10,320	10,289	10,297	10,264	10,254	10,241	10,230	10,219	10,188	10,261	10,253	10,245	10,235	10,226	10,179	10,189	10,160	10,090	10,101	10,072	10,082	10,092	10,063	10,054	10,065	10,055	10,066	10,058	10,030	$ 10,020	$ 10,033	$ 9,965	$ 10,015	$ 10,026	$ 9,996	$ 10,006	$ 9,978	$ 9,989	$ 10,000
C000153268
Account Value [Line Items]
Line Graph and Table Measure Name	Sustainable Bond Fund
Account Value	$ 11,232	11,061	11,256	11,159	11,195	11,244	10,889	10,514	10,643	10,854	11,007	10,913	10,760	10,854	10,784	10,584	10,760	10,514	10,517	10,295	10,295	10,610	10,726	10,598	10,855	10,820	11,088	11,204	11,309	11,496	11,411	11,570	11,627	11,741	11,752	11,707	11,741	11,650	11,513	11,570	11,672	11,717	11,637	11,319	11,363	11,455	11,452	11,191	11,097	10,927	10,760	11,079	11,047	10,969	10,920	10,978	10,912	10,946	10,856	10,816	10,673	10,680	10,621	10,517	10,503	10,244	10,293	10,425	10,566	10,531	10,547	10,442	10,484	10,565	10,614	10,600	10,696	10,579	10,534	10,519	10,621	10,628	10,628	10,496	10,400	10,291	10,271	10,214	10,140	9,990	10,006	10,257	10,244	10,224	10,191	10,099	9,988	9,996	9,938	9,744	9,837	9,809	9,871	9,894	9,856	9,839	9,893	9,856	9,960	9,945	10,000
C000153267
Account Value [Line Items]
Line Graph and Table Measure Name	Sustainable Equity Fund
Account Value	$ 20,139	$ 19,227	$ 19,991	$ 19,853	$ 19,025	$ 18,686	$ 17,765	$ 16,252	$ 16,494	$ 17,229	$ 17,649	$ 17,418	$ 16,630	$ 17,198	$ 16,840	$ 16,147	$ 16,557	$ 15,727	$ 16,124	$ 14,885	$ 14,084	$ 15,260	$ 16,384	$ 15,354	$ 16,645	$ 16,645	$ 17,769	$ 17,706	$ 18,560	$ 20,007	$ 19,187	$ 19,570	$ 18,804	$ 19,839	$ 19,353	$ 18,980	$ 18,887	$ 18,691	$ 18,142	$ 17,553	$ 17,729	$ 17,977	$ 17,235	$ 15,813	$ 16,390	$ 16,617	$ 15,854	$ 14,741	$ 14,153	$ 13,287	$ 12,329	$ 13,596	$ 14,369	$ 14,452	$ 13,929	$ 13,580	$ 13,334	$ 13,241	$ 13,323	$ 13,241	$ 12,452	$ 13,149	$ 12,472	$ 12,185	$ 11,775	$ 11,036	$ 11,700	$ 11,487	$ 12,514	$ 12,564	$ 12,300	$ 11,955	$ 11,975	$ 11,782	$ 11,843	$ 11,955	$ 12,310	$ 11,711	$ 11,540	$ 11,449	$ 11,106	$ 10,975	$ 10,905	$ 10,703	$ 10,673	$ 10,410	$ 10,219	$ 9,987	$ 9,654	$ 9,462	$ 9,459	$ 9,629	$ 9,810	$ 9,749	$ 9,609	$ 9,208	$ 9,378	$ 9,328	$ 9,408	$ 9,017	$ 9,047	$ 9,599	$ 9,759	$ 9,579	$ 9,018	$ 9,118	$ 9,800	$ 9,790	$ 10,000	$ 9,960	$ 10,000

Shareholder Report, Average Ann

Shareholder Report, Average Annual Return (Details)	6 Months Ended	12 Months Ended	60 Months Ended	84 Months Ended	110 Months Ended	120 Months Ended
	May 31, 2024	May 31, 2024	May 31, 2024	May 31, 2024	May 31, 2024	May 31, 2024
C000065113
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Sextant Bond Income Fund
C000065111
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Sextant Core Fund
C000112018
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Sextant Global High Income Fund
C000012974
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Sextant Growth Fund Investor Shares
C000188907
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Sextant Growth Fund Z Shares
C000065110
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Sextant International Fund Investor Shares
C000188908
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Sextant International Fund Z Shares
C000065112
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Sextant Short-Term Bond Fund
C000153268
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Sustainable Bond Fund
C000153267
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Sustainable Equity Fund
Without Sales Load [Member] | C000065113
Average Annual Return [Line Items]
Average Annual Return, Percent		0.43%	(1.04%)			0.89%
Without Sales Load [Member] | C000065111
Average Annual Return [Line Items]
Average Annual Return, Percent		13.88%	7.56%			5.50%
Without Sales Load [Member] | C000112018
Average Annual Return [Line Items]
Average Annual Return, Percent		13.65%	3.90%			3.75%
Without Sales Load [Member] | C000012974
Average Annual Return [Line Items]
Average Annual Return, Percent		23.97%	15.30%			11.56%
Without Sales Load [Member] | C000188907
Average Annual Return [Line Items]
Average Annual Return, Percent		24.26%	15.58%	14.31%
Without Sales Load [Member] | C000065110
Average Annual Return [Line Items]
Average Annual Return, Percent		22.03%	8.72%			7.37%
Without Sales Load [Member] | C000188908
Average Annual Return [Line Items]
Average Annual Return, Percent		22.35%	8.96%	0%
Without Sales Load [Member] | C000065112
Average Annual Return [Line Items]
Average Annual Return, Percent		3.66%	1.03%			1.10%
Without Sales Load [Member] | C000153268
Average Annual Return [Line Items]
Average Annual Return, Percent		4.38%	1.03%		1.27%
Without Sales Load [Member] | C000153267
Average Annual Return [Line Items]
Average Annual Return, Percent		21.10%	10.09%		7.90%

Shareholder Report, Holdings (D

Shareholder Report, Holdings (Details)	May 31, 2024
C000065113 | Government
Holdings [Line Items]
Percent of Net Asset Value	27.20%
C000065113 | Technology
Holdings [Line Items]
Percent of Net Asset Value	10.60%
C000065113 | Health Care
Holdings [Line Items]
Percent of Net Asset Value	10.10%
C000065113 | Financials
Holdings [Line Items]
Percent of Net Asset Value	8.90%
C000065113 | Industrials
Holdings [Line Items]
Percent of Net Asset Value	6.60%
C000065113 | Energy
Holdings [Line Items]
Percent of Net Asset Value	5.90%
C000065113 | Consumer Discretionary
Holdings [Line Items]
Percent of Net Asset Value	5.70%
C000065113 | Utilities
Holdings [Line Items]
Percent of Net Asset Value	5.20%
C000065113 | Consumer Staples
Holdings [Line Items]
Percent of Net Asset Value	5.20%
C000065113 | Communications
Holdings [Line Items]
Percent of Net Asset Value	4.40%
C000065113 | Other Sectors
Holdings [Line Items]
Percent of Net Asset Value	2.80%
C000065111 | Government
Holdings [Line Items]
Percent of Net Asset Value	15.40%
C000065111 | Technology
Holdings [Line Items]
Percent of Net Asset Value	17.40%
C000065111 | Health Care
Holdings [Line Items]
Percent of Net Asset Value	7.90%
C000065111 | Financials
Holdings [Line Items]
Percent of Net Asset Value	4.90%
C000065111 | Industrials
Holdings [Line Items]
Percent of Net Asset Value	15.10%
C000065111 | Consumer Discretionary
Holdings [Line Items]
Percent of Net Asset Value	6.30%
C000065111 | Utilities
Holdings [Line Items]
Percent of Net Asset Value	6.50%
C000065111 | Consumer Staples
Holdings [Line Items]
Percent of Net Asset Value	5.30%
C000065111 | Communications
Holdings [Line Items]
Percent of Net Asset Value	5.30%
C000065111 | Other Sectors
Holdings [Line Items]
Percent of Net Asset Value	4.20%
C000065111 | Materials
Holdings [Line Items]
Percent of Net Asset Value	4.90%
C000112018 | Government
Holdings [Line Items]
Percent of Net Asset Value	2.50%
C000112018 | Technology
Holdings [Line Items]
Percent of Net Asset Value	5.20%
C000112018 | Health Care
Holdings [Line Items]
Percent of Net Asset Value	5.90%
C000112018 | Financials
Holdings [Line Items]
Percent of Net Asset Value	10.30%
C000112018 | Industrials
Holdings [Line Items]
Percent of Net Asset Value	8.90%
C000112018 | Energy
Holdings [Line Items]
Percent of Net Asset Value	5.80%
C000112018 | Consumer Discretionary
Holdings [Line Items]
Percent of Net Asset Value	8.80%
C000112018 | Utilities
Holdings [Line Items]
Percent of Net Asset Value	2.60%
C000112018 | Communications
Holdings [Line Items]
Percent of Net Asset Value	14.70%
C000112018 | Other Sectors
Holdings [Line Items]
Percent of Net Asset Value	2.30%
C000112018 | Materials
Holdings [Line Items]
Percent of Net Asset Value	14.70%
C000065112 | Government
Holdings [Line Items]
Percent of Net Asset Value	35%
C000065112 | Technology
Holdings [Line Items]
Percent of Net Asset Value	5.60%
C000065112 | Health Care
Holdings [Line Items]
Percent of Net Asset Value	1.40%
C000065112 | Financials
Holdings [Line Items]
Percent of Net Asset Value	16.20%
C000065112 | Industrials
Holdings [Line Items]
Percent of Net Asset Value	1.80%
C000065112 | Consumer Discretionary
Holdings [Line Items]
Percent of Net Asset Value	5.50%
C000065112 | Utilities
Holdings [Line Items]
Percent of Net Asset Value	11.20%
C000065112 | Consumer Staples
Holdings [Line Items]
Percent of Net Asset Value	8.90%
C000065112 | Communications
Holdings [Line Items]
Percent of Net Asset Value	7.10%
C000065112 | Materials
Holdings [Line Items]
Percent of Net Asset Value	2.80%
C000153268 | Government
Holdings [Line Items]
Percent of Net Asset Value	29.70%
C000153268 | Technology
Holdings [Line Items]
Percent of Net Asset Value	5.90%
C000153268 | Health Care
Holdings [Line Items]
Percent of Net Asset Value	4.30%
C000153268 | Financials
Holdings [Line Items]
Percent of Net Asset Value	26.60%
C000153268 | Industrials
Holdings [Line Items]
Percent of Net Asset Value	1.80%
C000153268 | Consumer Discretionary
Holdings [Line Items]
Percent of Net Asset Value	3.40%
C000153268 | Utilities
Holdings [Line Items]
Percent of Net Asset Value	4.40%
C000153268 | Consumer Staples
Holdings [Line Items]
Percent of Net Asset Value	2.80%
C000153268 | Communications
Holdings [Line Items]
Percent of Net Asset Value	2.60%
C000153268 | Other Sectors
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000153268 | Real Estate
Holdings [Line Items]
Percent of Net Asset Value	9.40%