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Mortgage Loans Held for Investment, Net and Related Financing (Tables) | 12 Months Ended
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Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Mortgage Loans Held for Investment, Net [Table Text Block] | The Company's mortgage loans held for investment, net consist of securitized and unsecuritized mortgage loans originated or purchased by the Company from 1992 through 1998. The following table provides detail by type of collateral as of the periods indicated:
| December 31, 2014 |  | December 31, 2013
Single-family mortgage loans held for investment, amortized cost | $ | 30,214 |  |  | $ | 35,328 |
Commercial mortgage loans held for investment, amortized cost | 9,736 |  |  | 20,352 |
Allowance for loan losses | (250 | ) |  | (257 | )
Total mortgage loans held for investment, net | $ | 39,700 |  |  | $ | 55,423 |

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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3, 4 -Article 5 + Details
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