Note 27 - Asset Impairment (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
| Note 27 - Asset Impairment (Details) [Line Items] | |||
| Increase (Decrease) in Deferred Revenue | $ 721 | $ (2,524) | $ (14,734) |
| Cost of Goods Sold | $ 233,063 | 213,172 | 289,828 |
| Equipment Used to Produce Anode Powder [Member] | |||
| Note 27 - Asset Impairment (Details) [Line Items] | |||
| Impairment of Long-Lived Assets Held-for-use | 17,580 | ||
| Increase (Decrease) in Deferred Revenue | (16,160) | ||
| Cost of Goods Sold | $ 1,420 | ||
| Equipment Used to Produce Anode Powder [Member] | Shortfall Payment One [Member] | |||
| Note 27 - Asset Impairment (Details) [Line Items] | |||
| Revenue, Net | 4,176 | ||
| Equipment Used to Produce Anode Powder [Member] | Shortfall Payment Two [Member] | |||
| Note 27 - Asset Impairment (Details) [Line Items] | |||
| Revenue, Net | $ 4,640 | ||