Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-25-034609-index-headers.html | 2025-03-06 16:06:08 | |
| 0000950170-25-034609-index.html | 2025-03-06 16:06:08 | |
| 0000950170-25-034609.txt | 2025-03-06 16:06:08 | |
 0000950170-25-034609-xbrl.zip | 259299 | 2025-03-06 16:06:08 |
| FilingSummary.xml | 1726 | 2025-03-06 16:06:08 |
| Financial_Report.xlsx | 5750 | 2025-03-06 16:06:08 |
| fisi-20250306.htm | 51897 | 2025-03-06 16:06:08 |
| fisi-20250306.xsd | 25063 | 2025-03-06 16:06:08 |
| fisi-20250306_htm.xml | 4750 | 2025-03-06 16:06:08 |
| fisi-ex99_1.htm | 16396 | 2025-03-06 16:06:08 |
 img145321324_0.jpg | 323901 | 2025-03-06 16:06:08 |
 img40780990_0.jpg | 323901 | 2025-03-06 16:06:08 |
| MetaLinks.json | 18164 | 2025-03-06 16:06:08 |
| R1.htm | 39715 | 2025-03-06 16:06:08 |
| report.css | 2767 | 2025-03-06 16:06:08 |
| Show.js | 1084 | 2025-03-06 16:06:08 |