Note 9 - Segment Information - Revenues by Geographical Areas (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
|
UNITED STATES | ||||
Revenues | $ 67,209 | $ 104,157 | $ 113,215 | $ 157,734 |
All Foreign Countries [Member] | ||||
Revenues | 670 | 441 | 1,299 | 951 |
Revenues | $ 67,879 | $ 104,598 | $ 114,514 | $ 158,685 |