Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-25-111189-index-headers.html | 2025-08-25 16:06:27 | |
| 0000950170-25-111189-index.html | 2025-08-25 16:06:27 | |
| 0000950170-25-111189.txt | 2025-08-25 16:06:27 | |
 0000950170-25-111189-xbrl.zip | 257727 | 2025-08-25 16:06:27 |
| FilingSummary.xml | 1724 | 2025-08-25 16:06:27 |
| fisi-20250825.htm | 55319 | 2025-08-25 16:06:27 |
| fisi-20250825.xsd | 25063 | 2025-08-25 16:06:27 |
| fisi-20250825_htm.xml | 4750 | 2025-08-25 16:06:27 |
| fisi-ex99_1.htm | 7992 | 2025-08-25 16:06:27 |
 img145321324_0.jpg | 323901 | 2025-08-25 16:06:27 |
 img40785856_0.jpg | 323901 | 2025-08-25 16:06:27 |
| MetaLinks.json | 18194 | 2025-08-25 16:06:27 |
| R1.htm | 39698 | 2025-08-25 16:06:27 |
| report.css | 2766 | 2025-08-25 16:06:27 |
| Show.js | 1084 | 2025-08-25 16:06:27 |