Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-25-078932-index-headers.html | 2025-05-29 16:05:20 | |
| 0000950170-25-078932-index.html | 2025-05-29 16:05:20 | |
| 0000950170-25-078932.txt | 2025-05-29 16:05:20 | |
 0000950170-25-078932-xbrl.zip | 257776 | 2025-05-29 16:05:20 |
| FilingSummary.xml | 1724 | 2025-05-29 16:05:20 |
| fisi-20250528.htm | 101752 | 2025-05-29 16:05:20 |
| fisi-20250528.xsd | 25063 | 2025-05-29 16:05:20 |
| fisi-20250528_htm.xml | 4750 | 2025-05-29 16:05:20 |
 img40782976_0.jpg | 323901 | 2025-05-29 16:05:20 |
| MetaLinks.json | 18194 | 2025-05-29 16:05:20 |
| R1.htm | 39696 | 2025-05-29 16:05:20 |
| report.css | 2766 | 2025-05-29 16:05:20 |
| Show.js | 1084 | 2025-05-29 16:05:20 |