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Note 8 - Derivatives Instruments and Hedging Activities (Details) - Components of Realized and Unrealized Gains and Losses (USD $)
In Thousands, unless otherwise specified
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12 Months Ended |
|
Dec. 31, 2013
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Dec. 31, 2012
|
Dec. 31, 2011
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| Note 8 - Derivatives Instruments and Hedging Activities (Details) - Components of Realized and Unrealized Gains and Losses [Line Items] |
|
|
|
|
|
|
| Unrealized Gains (Losses) |
$ 5,464 |
|
$ (3,947) |
|
$ (9,657) |
|
|
Not Designated as Hedging Instrument [Member] | TBA Securities [Member]
|
|
|
|
|
|
|
| Note 8 - Derivatives Instruments and Hedging Activities (Details) - Components of Realized and Unrealized Gains and Losses [Line Items] |
|
|
|
|
|
|
| Realized Gains (Losses) |
(12,393) |
|
16,397 |
|
2,886 |
|
| Unrealized Gains (Losses) |
(629) |
|
(1,347) |
|
1,363 |
|
|
Not Designated as Hedging Instrument [Member] | Eurodollar Future [Member]
|
|
|
|
|
|
|
| Note 8 - Derivatives Instruments and Hedging Activities (Details) - Components of Realized and Unrealized Gains and Losses [Line Items] |
|
|
|
|
|
|
| Realized Gains (Losses) |
(3,591) |
[1] |
(1,042) |
[1] |
(1,986) |
[1] |
| Unrealized Gains (Losses) |
2,366 |
[1] |
(2,049) |
[1] |
(1,749) |
[1] |
|
Not Designated as Hedging Instrument [Member] | Swaption [Member]
|
|
|
|
|
|
|
| Note 8 - Derivatives Instruments and Hedging Activities (Details) - Components of Realized and Unrealized Gains and Losses [Line Items] |
|
|
|
|
|
|
| Unrealized Gains (Losses) |
1,153 |
|
(268) |
|
|
|
|
Not Designated as Hedging Instrument [Member] | US Treasury Futures and Interest Rate Swap Futures and Options [Member]
|
|
|
|
|
|
|
| Note 8 - Derivatives Instruments and Hedging Activities (Details) - Components of Realized and Unrealized Gains and Losses [Line Items] |
|
|
|
|
|
|
| Realized Gains (Losses) |
5,418 |
|
(9,548) |
|
(197) |
|
| Unrealized Gains (Losses) |
2,866 |
|
1,300 |
|
(740) |
|
|
Not Designated as Hedging Instrument [Member]
|
|
|
|
|
|
|
| Note 8 - Derivatives Instruments and Hedging Activities (Details) - Components of Realized and Unrealized Gains and Losses [Line Items] |
|
|
|
|
|
|
| Realized Gains (Losses) |
(10,566) |
|
5,807 |
|
703 |
|
| Unrealized Gains (Losses) |
$ 5,756 |
|
$ (2,364) |
|
$ (1,126) |
|
|
|
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