Shareholder Report, Holdings (Details) - C000009558 [Member] |
Jun. 30, 2026 |
|---|---|
| Consumer Finance [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.82% |
| Banks [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 43.68% |
| Insurance Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.89% |
| Financial Services Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.35% |
| Capital Markets [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.18% |