Note 13 - Stock-based Compensation and Similar Arrangements - Stock-based Compensation Activity (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Stock-based compensation | $ 5,136 | $ 26,622 | $ 7,562 |
| Service Expense [Member] | |||
| Stock-based compensation | 830 | 21,480 | 4,019 |
| General and Administrative Expense [Member] | |||
| Stock-based compensation | 4,324 | 5,027 | 3,537 |
| Discontinued Operations, Net of Tax [Member] | |||
| Stock-based compensation | $ (18) | $ 115 | $ 6 |