v3.26.1
Shareholder Report, Line Graph (Details) - USD ($)
 1 Months Ended 2 Months Ended 3 Months Ended 4 Months Ended 5 Months Ended 6 Months Ended 7 Months Ended 8 Months Ended 9 Months Ended 10 Months Ended 11 Months Ended 12 Months Ended 13 Months Ended 14 Months Ended 15 Months Ended 16 Months Ended 17 Months Ended 18 Months Ended 19 Months Ended 20 Months Ended 21 Months Ended 22 Months Ended 23 Months Ended 24 Months Ended 25 Months Ended 26 Months Ended 27 Months Ended 28 Months Ended 29 Months Ended 30 Months Ended 31 Months Ended 32 Months Ended 33 Months Ended 34 Months Ended 35 Months Ended 36 Months Ended 37 Months Ended 38 Months Ended 39 Months Ended 40 Months Ended 41 Months Ended 42 Months Ended 43 Months Ended 44 Months Ended 45 Months Ended 46 Months Ended 47 Months Ended 48 Months Ended 49 Months Ended 50 Months Ended 51 Months Ended 52 Months Ended 53 Months Ended 54 Months Ended 55 Months Ended 56 Months Ended 57 Months Ended 58 Months Ended 59 Months Ended 60 Months Ended 61 Months Ended 62 Months Ended 63 Months Ended 64 Months Ended 65 Months Ended 66 Months Ended 67 Months Ended 68 Months Ended 69 Months Ended 70 Months Ended 71 Months Ended 72 Months Ended 73 Months Ended 74 Months Ended 75 Months Ended 76 Months Ended 77 Months Ended 78 Months Ended 79 Months Ended 80 Months Ended 81 Months Ended 82 Months Ended 83 Months Ended 84 Months Ended 85 Months Ended 86 Months Ended 87 Months Ended 88 Months Ended 89 Months Ended 90 Months Ended 91 Months Ended 92 Months Ended 93 Months Ended 94 Months Ended 95 Months Ended 96 Months Ended 97 Months Ended 98 Months Ended 99 Months Ended 100 Months Ended 101 Months Ended 102 Months Ended 103 Months Ended 104 Months Ended 105 Months Ended 106 Months Ended 107 Months Ended 108 Months Ended 109 Months Ended 110 Months Ended 111 Months Ended 112 Months Ended 113 Months Ended 114 Months Ended 115 Months Ended 116 Months Ended 117 Months Ended 118 Months Ended 119 Months Ended 120 Months Ended
May 31, 2016
Jun. 30, 2016
Jul. 31, 2016
Aug. 31, 2016
Sep. 30, 2016
Oct. 31, 2016
Nov. 30, 2016
Dec. 31, 2016
Jan. 31, 2017
Feb. 28, 2017
Mar. 31, 2017
Apr. 30, 2017
May 31, 2026
May 31, 2017
Jun. 30, 2017
Jul. 31, 2017
Aug. 31, 2017
Sep. 30, 2017
Oct. 31, 2017
Nov. 30, 2017
Dec. 31, 2017
Jan. 31, 2018
Feb. 28, 2018
Mar. 31, 2018
Apr. 30, 2018
May 31, 2018
Jun. 30, 2018
Jul. 31, 2018
Aug. 31, 2018
Sep. 30, 2018
Oct. 31, 2018
Nov. 30, 2018
Dec. 31, 2018
Jan. 31, 2019
Feb. 28, 2019
Mar. 31, 2019
Apr. 30, 2019
May 31, 2019
Jun. 30, 2019
Jul. 31, 2019
Aug. 31, 2019
Sep. 30, 2019
Oct. 31, 2019
Nov. 30, 2019
Dec. 31, 2019
Jan. 31, 2020
Feb. 29, 2020
Mar. 31, 2020
Apr. 30, 2020
May 31, 2020
Jun. 30, 2020
Jul. 31, 2020
Aug. 31, 2020
Sep. 30, 2020
Oct. 31, 2020
Nov. 30, 2020
Dec. 31, 2020
Jan. 31, 2021
Feb. 28, 2021
Mar. 31, 2021
Apr. 30, 2021
May 31, 2021
Jun. 30, 2021
Jul. 31, 2021
Aug. 31, 2021
Sep. 30, 2021
Oct. 31, 2021
Nov. 30, 2021
Dec. 31, 2021
Jan. 31, 2022
Feb. 28, 2022
Mar. 31, 2022
Apr. 30, 2022
May 31, 2022
Jun. 30, 2022
Jul. 31, 2022
Aug. 31, 2022
Sep. 30, 2022
Oct. 31, 2022
Nov. 30, 2022
Dec. 31, 2022
Jan. 31, 2023
Feb. 28, 2023
Mar. 31, 2023
Apr. 30, 2023
May 31, 2023
Jun. 30, 2023
Jul. 31, 2023
Aug. 31, 2023
Sep. 30, 2023
Oct. 31, 2023
Nov. 30, 2023
Dec. 31, 2023
Jan. 31, 2024
Feb. 29, 2024
Mar. 31, 2024
Apr. 30, 2024
May 31, 2024
Jun. 30, 2024
Jul. 31, 2024
Aug. 31, 2024
Sep. 30, 2024
Oct. 31, 2024
Nov. 30, 2024
Dec. 31, 2024
Jan. 31, 2025
Feb. 28, 2025
Mar. 31, 2025
Apr. 30, 2025
May 31, 2025
Jun. 30, 2025
Jul. 31, 2025
Aug. 31, 2025
Sep. 30, 2025
Oct. 31, 2025
Nov. 30, 2025
Dec. 31, 2025
Jan. 31, 2026
Feb. 28, 2026
Mar. 31, 2026
Apr. 30, 2026
May 31, 2026
C000131515                                                                                                                                                                                                                                                    
Account Value [Line Items]                                                                                                                                                                                                                                                    
Line Graph and Table Measure Name                         Amana Developing World Fund Institutional Shares                                                                                                                                                                                                                          
Accumulated Value $ 10,000 $ 10,244 $ 10,445 $ 10,520 $ 10,424 $ 10,127 $ 9,512 $ 9,446 $ 9,734 $ 9,926 $ 10,119 $ 10,397   $ 10,674 $ 10,685 $ 11,006 $ 11,016 $ 11,091 $ 10,995 $ 11,145 $ 11,496 $ 11,678 $ 11,314 $ 11,239 $ 11,164 $ 10,800 $ 10,489 $ 10,671 $ 10,510 $ 10,285 $ 9,621 $ 9,975 $ 9,722 $ 10,434 $ 10,369 $ 10,477 $ 10,714 $ 10,089 $ 10,757 $ 10,768 $ 10,542 $ 10,703 $ 10,973 $ 10,962 $ 11,542 $ 11,314 $ 10,870 $ 9,526 $ 10,198 $ 10,512 $ 11,174 $ 11,694 $ 11,835 $ 11,737 $ 11,976 $ 13,027 $ 14,035 $ 14,295 $ 14,555 $ 14,425 $ 14,783 $ 14,923 $ 15,010 $ 14,631 $ 15,010 $ 14,425 $ 14,739 $ 14,793 $ 15,089 $ 14,176 $ 13,989 $ 13,791 $ 13,130 $ 13,097 $ 12,162 $ 12,613 $ 12,250 $ 11,358 $ 11,600 $ 12,778 $ 12,458 $ 13,327 $ 12,770 $ 13,260 $ 13,093 $ 13,082 $ 13,472 $ 13,996 $ 13,494 $ 12,971 $ 12,503 $ 13,350 $ 14,126 $ 13,901 $ 14,419 $ 14,869 $ 14,441 $ 15,038 $ 15,489 $ 15,703 $ 15,962 $ 16,266 $ 15,602 $ 15,309 $ 15,146 $ 15,134 $ 14,726 $ 14,487 $ 14,669 $ 14,873 $ 15,543 $ 15,532 $ 16,043 $ 16,860 $ 17,587 $ 17,575 $ 18,212 $ 19,966 $ 21,218 $ 19,498 $ 21,545 $ 22,966
C000079787                                                                                                                                                                                                                                                    
Account Value [Line Items]                                                                                                                                                                                                                                                    
Line Graph and Table Measure Name                         Amana Developing World Fund Investor Shares                                                                                                                                                                                                                          
Accumulated Value 10,000 10,256 10,448 10,512 10,416 10,117 9,499 9,440 9,729 9,921 10,114 10,392   10,670 10,670 10,990 11,001 11,065 10,969 11,119 11,460 11,642 11,288 11,203 11,128 10,763 10,453 10,635 10,474 10,249 9,585 9,939 9,677 10,387 10,323 10,430 10,667 10,043 10,699 10,721 10,484 10,635 10,915 10,904 11,484 11,257 10,803 9,475 10,134 10,447 11,106 11,614 11,754 11,657 11,894 12,932 13,925 14,185 14,444 14,314 14,660 14,801 14,876 14,509 14,876 14,293 14,606 14,660 14,944 14,037 13,851 13,654 12,998 12,954 12,036 12,473 12,113 11,227 11,468 12,626 12,315 13,166 12,613 13,088 12,934 12,923 13,298 13,828 13,320 12,812 12,337 13,166 13,946 13,712 14,225 14,659 14,236 14,815 15,261 15,473 15,718 16,019 15,362 15,072 14,913 14,890 14,498 14,251 14,430 14,632 15,283 15,271 15,765 16,572 17,278 17,267 17,886 19,604 20,838 19,143 21,161 22,372
C000131514                                                                                                                                                                                                                                                    
Account Value [Line Items]                                                                                                                                                                                                                                                    
Line Graph and Table Measure Name                         Amana Growth Fund Institutional Shares                                                                                                                                                                                                                          
Accumulated Value 10,000 10,006 10,441 10,374 10,371 10,033 10,157 10,352 10,685 11,180 11,324 11,568   11,867 11,833 12,012 12,283 12,514 12,888 13,321 13,384 14,129 13,686 13,571 13,342 13,888 13,896 14,595 15,393 15,668 14,576 14,862 13,742 14,759 15,629 16,152 16,730 15,629 16,714 16,793 16,813 16,872 17,185 17,735 18,332 18,295 17,281 15,836 17,559 18,664 19,429 20,775 22,183 21,626 20,759 23,067 24,416 24,278 24,572 25,307 26,336 26,596 27,832 29,125 30,380 28,118 30,341 31,037 32,185 29,640 28,259 28,817 26,625 26,490 24,643 26,900 25,728 23,318 25,314 27,292 25,998 27,369 26,496 28,021 28,134 28,369 30,088 30,432 30,305 28,785 28,450 31,165 32,754 33,826 35,600 36,243 34,834 35,842 37,985 37,356 38,583 38,670 37,242 38,569 38,002 38,353 37,617 34,866 35,236 37,784 39,776 40,274 40,768 43,600 45,560 45,541 44,801 45,904 46,446 43,385 49,117 51,651
C000065109                                                                                                                                                                                                                                                    
Account Value [Line Items]                                                                                                                                                                                                                                                    
Line Graph and Table Measure Name                         Amana Growth Fund Investor Shares                                                                                                                                                                                                                          
Accumulated Value 10,000 10,003 10,436 10,366 10,363 10,021 10,145 10,338 10,669 11,164 11,305 11,549   11,838 11,804 11,979 12,247 12,474 12,846 13,276 13,334 14,074 13,628 13,514 13,281 13,822 13,826 14,520 15,314 15,585 14,494 14,776 13,660 14,666 15,527 16,044 16,617 15,519 16,593 16,672 16,684 16,743 17,047 17,592 18,178 18,141 17,131 15,693 17,400 18,487 19,245 20,573 21,961 21,408 20,540 22,825 24,150 24,013 24,301 25,023 26,032 26,281 27,502 28,773 30,002 27,764 29,955 30,634 31,764 29,242 27,877 28,417 26,253 26,119 24,292 26,512 25,346 22,970 24,931 26,875 25,598 26,940 26,072 27,566 27,674 27,902 29,589 29,915 29,790 28,287 27,956 30,613 32,165 33,214 34,948 35,574 34,183 35,164 37,258 36,632 37,835 37,911 36,502 37,794 37,230 37,567 36,841 34,145 34,496 36,981 38,924 39,406 39,879 42,641 44,551 44,518 43,788 44,860 45,379 42,379 47,968 50,435
C000131513                                                                                                                                                                                                                                                    
Account Value [Line Items]                                                                                                                                                                                                                                                    
Line Graph and Table Measure Name                         Amana Income Fund Institutional Shares                                                                                                                                                                                                                          
Accumulated Value 10,000 10,237 10,528 10,488 10,411 9,975 10,293 10,401 10,598 11,003 11,064 11,130   11,296 11,386 11,364 11,419 11,850 12,209 12,534 12,685 13,190 12,519 12,265 11,922 12,205 12,203 12,985 13,150 13,255 12,251 12,952 12,052 12,501 13,198 13,464 13,809 12,892 13,626 13,661 13,407 13,803 14,146 14,617 15,134 14,805 13,705 12,413 13,823 14,434 14,710 15,215 15,981 15,642 15,241 16,847 17,274 17,280 17,357 18,163 18,481 18,928 19,108 19,518 19,924 18,631 19,772 19,812 21,210 20,043 19,151 19,868 19,096 19,194 18,260 19,325 18,348 17,189 18,662 20,108 19,406 19,582 19,036 19,934 20,342 20,079 21,506 21,432 21,393 20,440 20,097 21,319 22,087 22,352 23,580 24,313 23,442 24,104 24,856 24,770 25,869 25,858 25,282 25,821 24,994 25,495 26,005 24,682 24,978 26,037 27,271 27,255 27,445 27,988 28,528 29,563 29,154 29,798 30,994 28,489 30,722 32,100
C000012979                                                                                                                                                                                                                                                    
Account Value [Line Items]                                                                                                                                                                                                                                                    
Line Graph and Table Measure Name                         Amana Income Fund Investor Shares                                                                                                                                                                                                                          
Accumulated Value 10,000 10,234 10,525 10,480 10,401 9,964 10,280 10,385 10,581 10,985 11,043 11,106   11,267 11,356 11,333 11,385 11,811 12,166 12,489 12,637 13,136 12,467 12,213 11,867 12,148 12,143 12,918 13,077 13,182 12,181 12,876 11,977 12,422 13,111 13,375 13,714 12,798 13,524 13,558 13,302 13,694 14,030 14,493 15,006 14,676 13,582 12,303 13,699 14,304 14,576 15,073 15,831 15,488 15,090 16,677 17,098 17,104 17,177 17,971 18,283 18,720 18,893 19,298 19,694 18,413 19,535 19,572 20,946 19,791 18,908 19,610 18,845 18,938 18,016 19,059 18,092 16,946 18,392 19,815 19,119 19,287 18,749 19,627 20,028 19,762 21,165 21,086 21,045 20,100 19,762 20,958 21,710 21,963 23,166 23,885 23,021 23,668 24,401 24,310 25,384 25,370 24,800 25,323 24,506 24,995 25,487 24,185 24,471 25,504 26,707 26,684 26,864 27,393 27,914 28,923 28,518 29,142 30,307 27,849 30,029 31,368
C000160667                                                                                                                                                                                                                                                    
Account Value [Line Items]                                                                                                                                                                                                                                                    
Line Graph and Table Measure Name                         Amana Participation Fund Institutional Shares                                                                                                                                                                                                                          
Accumulated Value 10,000 10,120 10,171 10,262 10,229 10,196 10,073 10,083 10,134 10,203 10,227 10,265   10,309 10,268 10,320 10,381 10,369 10,368 10,355 10,354 10,345 10,271 10,284 10,224 10,226 10,258 10,314 10,337 10,336 10,308 10,320 10,365 10,474 10,528 10,617 10,673 10,731 10,838 10,940 11,106 11,065 11,080 11,104 11,085 11,197 11,208 10,704 10,920 11,184 11,293 11,458 11,535 11,533 11,576 11,651 11,705 11,736 11,710 11,641 11,706 11,748 11,765 11,793 11,822 11,803 11,796 11,754 11,780 11,681 11,580 11,457 11,344 11,328 11,272 11,354 11,346 11,085 11,019 11,183 11,233 11,341 11,264 11,315 11,394 11,338 11,316 11,330 11,296 11,179 11,074 11,299 11,525 11,515 11,516 11,590 11,495 11,594 11,681 11,795 11,970 12,096 12,002 12,031 11,986 12,027 12,140 12,194 12,236 12,253 12,346 12,404 12,512 12,595 12,665 12,697 12,743 12,764 12,858 12,570 12,745 12,788
C000160666                                                                                                                                                                                                                                                    
Account Value [Line Items]                                                                                                                                                                                                                                                    
Line Graph and Table Measure Name                         Amana Participation Fund Investor Shares                                                                                                                                                                                                                          
Accumulated Value $ 10,000 $ 10,121 $ 10,173 $ 10,258 $ 10,224 $ 10,189 $ 10,062 $ 10,071 $ 10,120 $ 10,187 $ 10,209 $ 10,246   $ 10,287 $ 10,255 $ 10,305 $ 10,354 $ 10,339 $ 10,347 $ 10,321 $ 10,328 $ 10,307 $ 10,231 $ 10,242 $ 10,191 $ 10,191 $ 10,211 $ 10,275 $ 10,285 $ 10,282 $ 10,252 $ 10,272 $ 10,315 $ 10,412 $ 10,474 $ 10,550 $ 10,604 $ 10,670 $ 10,775 $ 10,864 $ 11,026 $ 10,994 $ 10,995 $ 11,028 $ 10,997 $ 11,106 $ 11,115 $ 10,622 $ 10,835 $ 11,084 $ 11,190 $ 11,351 $ 11,425 $ 11,421 $ 11,461 $ 11,534 $ 11,585 $ 11,614 $ 11,586 $ 11,515 $ 11,588 $ 11,627 $ 11,630 $ 11,656 $ 11,681 $ 11,672 $ 11,651 $ 11,618 $ 11,642 $ 11,530 $ 11,439 $ 11,303 $ 11,189 $ 11,181 $ 11,124 $ 11,191 $ 11,193 $ 10,932 $ 10,853 $ 11,013 $ 11,061 $ 11,176 $ 11,098 $ 11,146 $ 11,211 $ 11,152 $ 11,140 $ 11,151 $ 11,115 $ 10,997 $ 10,891 $ 11,100 $ 11,332 $ 11,320 $ 11,306 $ 11,388 $ 11,281 $ 11,376 $ 11,459 $ 11,581 $ 11,751 $ 11,860 $ 11,766 $ 11,804 $ 11,757 $ 11,796 $ 11,893 $ 11,955 $ 11,982 $ 11,995 $ 12,085 $ 12,139 $ 12,255 $ 12,333 $ 12,400 $ 12,416 $ 12,459 $ 12,489 $ 12,566 $ 12,294 $ 12,463 $ 12,489