Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-25-059293-index-headers.html | 2025-04-28 16:06:08 | |
| 0000950170-25-059293-index.html | 2025-04-28 16:06:08 | |
| 0000950170-25-059293.txt | 2025-04-28 16:06:08 | |
 0000950170-25-059293-xbrl.zip | 296333 | 2025-04-28 16:06:08 |
| FilingSummary.xml | 1724 | 2025-04-28 16:06:08 |
| Financial_Report.xlsx | 5768 | 2025-04-28 16:06:08 |
| fisi-20250331.htm | 56527 | 2025-04-28 16:06:08 |
| fisi-20250331.xsd | 25063 | 2025-04-28 16:06:08 |
| fisi-20250331_htm.xml | 4750 | 2025-04-28 16:06:08 |
| fisi-ex99_1.htm | 1755239 | 2025-04-28 16:06:08 |
 img145321324_0.jpg | 323901 | 2025-04-28 16:06:08 |
 img40781078_0.jpg | 323901 | 2025-04-28 16:06:08 |
| MetaLinks.json | 18194 | 2025-04-28 16:06:08 |
| R1.htm | 39698 | 2025-04-28 16:06:08 |
| report.css | 2767 | 2025-04-28 16:06:08 |
| Show.js | 1084 | 2025-04-28 16:06:08 |