Note 18 - Goodwill and Intangible Assets - Changes in Carrying Amount of Goodwill (Details) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| Balance | $ 50,686,000 | $ 28,834,000 |
| Acquisition of Reunion | 20,639,000 | |
| Adjustments to goodwill | 85,000 | 1,213,000 |
| Balance | $ 50,771,000 | $ 50,686,000 |