Note 9 - Stockholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended | 9 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|
Sep. 30, 2021 |
Jun. 30, 2021 |
Mar. 31, 2021 |
Sep. 30, 2020 |
Jun. 30, 2020 |
Mar. 31, 2020 |
Sep. 30, 2021 |
Jan. 12, 2016 |
Jul. 28, 2015 |
|
| Common Stock, Dividends, Per Share, Declared (in dollars per share) | $ 0.20 | $ 0.20 | $ 0.20 | $ 0.20 | $ 0.20 | $ 0.20 | |||
| Dividends, Common Stock, Total | $ 6.9 | ||||||||
| Stock Repurchase Program, Authorized Amount | $ 70.0 | $ 15.0 | |||||||
| Stock Repurchase Program, Remaining Authorized Repurchase Amount | $ 21.9 | $ 21.9 | |||||||
| Common Stock, Dividends, Per Share, Cash Paid (in dollars per share) | $ 0.20 | $ 0.20 | |||||||
| X | ||||||||||
- Definition Aggregate dividends paid during the period for each share of common stock outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of paid and unpaid common stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of stock repurchase plan authorized. No definition available.
|
| X | ||||||||||
- Definition Amount remaining of a stock repurchase plan authorized. No definition available.
|