Note 9 - Stockholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended | ||||
|---|---|---|---|---|---|
Feb. 08, 2021 |
Mar. 31, 2021 |
Mar. 31, 2020 |
Jan. 12, 2016 |
Jul. 28, 2015 |
|
| Common Stock, Dividends, Per Share, Declared (in dollars per share) | $ 0.20 | $ 0.20 | $ 0.20 | ||
| Stock Repurchase Program, Authorized Amount | $ 70.0 | $ 15.0 | |||
| Stock Repurchase Program, Remaining Authorized Repurchase Amount | $ 21.9 | ||||
| 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 stock repurchase plan authorized. No definition available.
|
| X | ||||||||||
- Definition Amount remaining of a stock repurchase plan authorized. No definition available.
|