Note 4 - Business Acquisitions - Pro Forma Consolidated Results of Operations (Details) - USD ($) $ / shares in Units, $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| Gross revenues | $ 266,801 | $ 261,316 |
| Net income | $ 14,273 | $ 10,197 |
| Basic earnings per share (in dollars per share) | $ 1.54 | $ 1.51 |
| Diluted earnings per share (in dollars per share) | $ 1.48 | $ 1.41 |