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Note 13 - Fair Value of Financial Instruments (Details) - Changes in Unrealized Gains (Losses) Included in Earnings for Level 3 (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | |
|---|---|---|
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Dec. 31, 2013
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Dec. 31, 2012
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| Changes in Unrealized Gains (Losses) Included in Earnings for Level 3 [Abstract] | ||
| Change in unrealized gains (losses) – assets | $ (423,949) | $ 194,363 |
| Change in unrealized gains (losses) – liabilities | 455,444 | (187,701) |
| Net change in unrealized gains included in earnings for assets and liabilities | $ 31,495 | $ 6,662 |