Accumulated Other Comprehensive Loss (Schedule Of Changes In Accumulated Other Comprehensive Loss) (Details) - USD ($) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Accumulated Other Comprehensive Loss [Line Items] | ||||
| Balance | $ 188,955,000 | $ 172,682,000 | $ 184,426,000 | $ 168,437,000 |
| Net current-period other comprehensive (loss) gain | (171,000) | 158,000 | (289,000) | 236,000 |
| Accumulated other comprehensive loss, end of period | (1,660,000) | (1,660,000) | ||
| Balance | 194,336,000 | 177,023,000 | 194,336,000 | 177,023,000 |
| Unrealized Gains and (Losses) on Available-for-Sale Securities [Member] | ||||
| Accumulated Other Comprehensive Loss [Line Items] | ||||
| Balance | (1,489,000) | (1,725,000) | (1,371,000) | (1,803,000) |
| Other comprehensive (loss) gain before reclassifications | (171,000) | 158,000 | (289,000) | 236,000 |
| Net current-period other comprehensive (loss) gain | (171,000) | 158,000 | (289,000) | 236,000 |
| Balance | (1,660,000) | $ (1,567,000) | (1,660,000) | $ (1,567,000) |
| Less amount reclassified from accumulated other comprehensive loss | $ 0 | $ 0 | ||
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount, after tax, of accumulated increase (decrease) in equity from transaction and other event and circumstance from nonowner source. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after tax, before reclassification adjustments of other comprehensive income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after tax of other comprehensive income (loss) attributable to parent entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after tax of reclassification adjustments of other comprehensive income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of equity (deficit) attributable to parent. Excludes temporary equity and equity attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Details
|