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Securitized Mortage Loans, Net (Tables) | 12 Months Ended
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Dec. 31, 2012
SECURITIZED MORTGAGE LOANS, NET [Abstract] |
Allowance for Credit Losses on Financing Receivables [Table Text Block] | The following table summarizes the components of securitized mortgage loans as of December 31, 2012 and December 31, 2011:
| December 31, 2012 |  | December 31, 2011
| Commercial |  | Single-family |  | Total |  | Commercial |  | Single-family |  | Total
Principal/par value (1) | $ | 30,576 |  |  | $ | 41,337 |  |  | $ | 71,913 |  |  | $ | 68,029 |  |  | $ | 47,657 |  |  | $ | 115,686 |
Unamortized premium, net | — |  |  | 616 |  |  | 616 |  |  | — |  |  | 770 |  |  | 770 |
Unamortized discount, net | (1,267 | ) |  | — |  |  | (1,267 | ) |  | (254 | ) |  | — |  |  | (254 | )
Amortized cost | 29,309 |  |  | 41,953 |  |  | 71,262 |  |  | 67,775 |  |  | 48,427 |  |  | 116,202 |
Allowance for loan losses | (150 | ) |  | (289 | ) |  | (439 | ) |  | (2,268 | ) |  | (231 | ) |  | (2,499 | )
| $ | 29,159 |  |  | $ | 41,664 |  |  | $ | 70,823 |  |  | $ | 65,507 |  |  | $ | 48,196 |  |  | $ | 113,703 |
(1) | Includes funds held by trustees.
The following table summarizes the aggregate activity for the portion of the allowance for loan losses that relates to the securitized mortgage loan portfolio for the periods indicated:
| For the Year Ended
| December 31,
| 2012 |  | 2011 |  | 2010
| Commercial |  | Single-family |  | Commercial |  | Single-family |  | Commercial |  | Single-family
Allowance at beginning of period | $ | 2,268 |  |  | $ | 231 |  |  | $ | 4,200 |  |  | $ | 270 |  |  | $ | 3,935 |  |  | $ | 277 |
Provision for loan losses | 24 |  |  | 168 |  |  | 848 |  |  | 23 |  |  | 1,194 |  |  | — |
Credit losses, net of recoveries | (2,142 | ) |  | (110 | ) |  | (2,780 | ) |  | (62 | ) |  | (929 | ) |  | (7 | )
Allowance at end of period | $ | 150 |  |  | $ | 289 |  |  | $ | 2,268 |  |  | $ | 231 |  |  | $ | 4,200 |  |  | $ | 270 |

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- Definition Tabular disclosure of financing receivables (examples of financing receivables include loans, trade accounts receivable and notes receivable) and activity in the allowance for credit losses account. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524 + Details
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