Note 6 - Equity-based Compensation - Inputs and Assumptions (Details) |
3 Months Ended |
|---|---|
|
Mar. 31, 2018
$ / shares
| |
| Grant date stock price (in dollars per share) | $ 15.48 |
| Dividend yield | 0.00% |
| Expected volatility | 19.55% |
| Risk-free interest rate | 2.75% |
| Expected life in years (Year) | 6 years |