Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000018349-25-000121-index-headers.html | 2025-11-04 16:16:47 | |
| 0000018349-25-000121-index.html | 2025-11-04 16:16:47 | |
| 0000018349-25-000121.txt | 2025-11-04 16:16:47 | |
 0000018349-25-000121-xbrl.zip | 444384 | 2025-11-04 16:16:47 |
| FilingSummary.xml | 40953 | 2025-11-04 16:16:47 |
| MetaLinks.json | 1232631 | 2025-11-04 16:16:47 |
| R1.htm | 58726 | 2025-11-04 16:16:47 |
| R10.htm | 208972 | 2025-11-04 16:16:47 |
| R11.htm | 1122259 | 2025-11-04 16:16:47 |
| R12.htm | 64920 | 2025-11-04 16:16:47 |
| R13.htm | 309475 | 2025-11-04 16:16:47 |
| R14.htm | 204638 | 2025-11-04 16:16:47 |
| R15.htm | 31338 | 2025-11-04 16:16:47 |
| R16.htm | 36878 | 2025-11-04 16:16:47 |
| R17.htm | 282660 | 2025-11-04 16:16:47 |
| R18.htm | 8465 | 2025-11-04 16:16:47 |
| R19.htm | 23680 | 2025-11-04 16:16:47 |
| R2.htm | 134529 | 2025-11-04 16:16:47 |
| R20.htm | 17400 | 2025-11-04 16:16:47 |
| R21.htm | 209862 | 2025-11-04 16:16:47 |
| R22.htm | 1111340 | 2025-11-04 16:16:47 |
| R23.htm | 59010 | 2025-11-04 16:16:47 |
| R24.htm | 313616 | 2025-11-04 16:16:47 |
| R25.htm | 192740 | 2025-11-04 16:16:47 |
| R26.htm | 28982 | 2025-11-04 16:16:47 |
| R27.htm | 23486 | 2025-11-04 16:16:47 |
| R28.htm | 269253 | 2025-11-04 16:16:47 |
| R29.htm | 53429 | 2025-11-04 16:16:47 |
| R3.htm | 22767 | 2025-11-04 16:16:47 |
| R30.htm | 57974 | 2025-11-04 16:16:47 |
| R31.htm | 19078 | 2025-11-04 16:16:47 |
| R32.htm | 50539 | 2025-11-04 16:16:47 |
| R33.htm | 99782 | 2025-11-04 16:16:47 |
| R34.htm | 8982 | 2025-11-04 16:16:47 |
| R35.htm | 120883 | 2025-11-04 16:16:47 |
| R36.htm | 40565 | 2025-11-04 16:16:47 |
| R37.htm | 387353 | 2025-11-04 16:16:47 |
| R38.htm | 26568 | 2025-11-04 16:16:47 |
| R39.htm | 85883 | 2025-11-04 16:16:47 |
| R4.htm | 155496 | 2025-11-04 16:16:47 |
| R40.htm | 27348 | 2025-11-04 16:16:47 |
| R41.htm | 57530 | 2025-11-04 16:16:47 |
| R42.htm | 18620 | 2025-11-04 16:16:47 |
| R43.htm | 55374 | 2025-11-04 16:16:47 |
| R44.htm | 131870 | 2025-11-04 16:16:47 |
| R45.htm | 12263 | 2025-11-04 16:16:47 |
| R46.htm | 16474 | 2025-11-04 16:16:47 |
| R47.htm | 19623 | 2025-11-04 16:16:47 |
| R48.htm | 100596 | 2025-11-04 16:16:47 |
| R49.htm | 22353 | 2025-11-04 16:16:47 |
| R5.htm | 140678 | 2025-11-04 16:16:47 |
| R50.htm | 40827 | 2025-11-04 16:16:47 |
| R51.htm | 40661 | 2025-11-04 16:16:47 |
| R52.htm | 22688 | 2025-11-04 16:16:47 |
| R53.htm | 21538 | 2025-11-04 16:16:47 |
| R54.htm | 38474 | 2025-11-04 16:16:47 |
| R55.htm | 5077 | 2025-11-04 16:16:47 |
| R56.htm | 18516 | 2025-11-04 16:16:47 |
| R57.htm | 36634 | 2025-11-04 16:16:47 |
| R58.htm | 4844 | 2025-11-04 16:16:47 |
| R59.htm | 99502 | 2025-11-04 16:16:47 |
| R6.htm | 83555 | 2025-11-04 16:16:47 |
| R60.htm | 23536 | 2025-11-04 16:16:47 |
| R7.htm | 8242 | 2025-11-04 16:16:47 |
| R8.htm | 108272 | 2025-11-04 16:16:47 |
| R9.htm | 24258 | 2025-11-04 16:16:47 |
| report.css | 2767 | 2025-11-04 16:16:47 |
| Show.js | 1085 | 2025-11-04 16:16:47 |
| snv_09302025xfilingxex311.htm | 17369 | 2025-11-04 16:16:47 |
| snv_09302025xfilingxex312.htm | 17384 | 2025-11-04 16:16:47 |
| snv_09302025xfilingxex32.htm | 9902 | 2025-11-04 16:16:47 |
| syn-20250930.htm | 5273928 | 2025-11-04 16:16:47 |
| syn-20250930.xsd | 64242 | 2025-11-04 16:16:47 |
| syn-20250930_cal.xml | 166431 | 2025-11-04 16:16:47 |
| syn-20250930_def.xml | 422768 | 2025-11-04 16:16:47 |
 syn-20250930_g1.jpg | 5894 | 2025-11-04 16:16:47 |
| syn-20250930_htm.xml | 6277805 | 2025-11-04 16:16:47 |
| syn-20250930_lab.xml | 870749 | 2025-11-04 16:16:47 |
| syn-20250930_pre.xml | 662788 | 2025-11-04 16:16:47 |