Note 7 - Earnings Per Share (Details Textual) - shares shares in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Share-Based Payment Arrangement [Member] | ||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | 0.2 | 0.1 | 0.1 | 0.1 |
| Potentially Dilutive Shares [Member] | ||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | 1.5 | 1.4 | 1.9 | |