Note 20 - Segment Information (Details) - Revenues by Geographical Areas - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
| Note 20 - Segment Information (Details) - Revenues by Geographical Areas [Line Items] | |||
| Revenues | $ 299,611 | $ 341,838 | $ 444,919 |
| Reportable Geographical Components [Member] | UNITED STATES | |||
| Note 20 - Segment Information (Details) - Revenues by Geographical Areas [Line Items] | |||
| Revenues | 297,415 | 334,210 | 430,096 |
| Reportable Geographical Components [Member] | All Foreign Countries [Member] | |||
| Note 20 - Segment Information (Details) - Revenues by Geographical Areas [Line Items] | |||
| Revenues | $ 2,196 | $ 7,628 | $ 14,823 |