|
Note 3 - Investment Securities Available for Sale (Details) - Investment Securities Available For Sale In An Unrealized Loss Position (USD $)
|
12 Months Ended |
|
Dec. 31, 2013
|
Dec. 31, 2012
|
| Note 3 - Investment Securities Available for Sale (Details) - Investment Securities Available For Sale In An Unrealized Loss Position [Line Items] |
|
|
| Carrying Value Total |
$ 912,443,000 |
$ 1,034,711,000 |
| Gross Unrealized Losses Total |
(44,783,000) |
(13,906,000) |
|
Agency RMBs [Member]
|
|
|
| Note 3 - Investment Securities Available for Sale (Details) - Investment Securities Available For Sale In An Unrealized Loss Position [Line Items] |
|
|
| Carrying Value Less Than 12 Months |
332,519,000 |
513,731,000 |
| Gross Unrealized Losses Less Than 12 Months |
(11,423,000) |
(1,749,000) |
| Carrying Value Greater Than 12 Months |
398,325,000 |
6,158,000 |
| Gross Unrealized Losses Greater Than 12 Months |
(20,582,000) |
(26,000) |
| Carrying Value Total |
730,844,000 |
519,889,000 |
| Gross Unrealized Losses Total |
(32,005,000) |
(1,775,000) |
|
Non-Agency RMBS [Member]
|
|
|
| Note 3 - Investment Securities Available for Sale (Details) - Investment Securities Available For Sale In An Unrealized Loss Position [Line Items] |
|
|
| Carrying Value Greater Than 12 Months |
1,104,000 |
2,687,000 |
| Gross Unrealized Losses Greater Than 12 Months |
(188,000) |
(604,000) |
| Carrying Value Total |
1,104,000 |
2,687,000 |
| Gross Unrealized Losses Total |
(188,000) |
(604,000) |
|
Total [Member]
|
|
|
| Note 3 - Investment Securities Available for Sale (Details) - Investment Securities Available For Sale In An Unrealized Loss Position [Line Items] |
|
|
| Carrying Value Less Than 12 Months |
332,519,000 |
513,731,000 |
| Gross Unrealized Losses Less Than 12 Months |
(11,423,000) |
(1,749,000) |
| Carrying Value Greater Than 12 Months |
399,429,000 |
8,845,000 |
| Gross Unrealized Losses Greater Than 12 Months |
(20,770,000) |
(630,000) |
| Carrying Value Total |
731,948,000 |
522,576,000 |
| Gross Unrealized Losses Total |
(32,193,000) |
(2,379,000) |
|
CMBS [Member]
|
|
|
| Note 3 - Investment Securities Available for Sale (Details) - Investment Securities Available For Sale In An Unrealized Loss Position [Line Items] |
|
|
| Carrying Value Less Than 12 Months |
|
16,357,000 |
| Gross Unrealized Losses Less Than 12 Months |
|
(273,000) |
| Carrying Value Total |
|
16,357,000 |
| Gross Unrealized Losses Total |
|
(273,000) |
|
Securitization Trusts [Member]
|
|
|
| Note 3 - Investment Securities Available for Sale (Details) - Investment Securities Available For Sale In An Unrealized Loss Position [Line Items] |
|
|
| Carrying Value Less Than 12 Months |
|
16,357,000 |
| Gross Unrealized Losses Less Than 12 Months |
|
(273,000) |
| Carrying Value Total |
|
16,357,000 |
| Gross Unrealized Losses Total |
|
$ (273,000) |