Mortgage Banking Operations (Details Textual) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Mortgage Banking Operations (Textual) [Abstract]
Servicing Advances	$ 5.9	$ 5.8
Ginnie Mae Early Buyout Loans
Mortgage Banking Operations (Textual) [Abstract]
Loans Receivable, Net	$ 8.0	$ 2.3
Multifamily Residential [Member]
Mortgage Banking Operations (Textual) [Abstract]
Weighted average life of company's multifamily MSRs	9 years 0 months 4 days

Total of loans held-for-sale and held-in-portfolio net of unearned income, allowance for loan and lease losses, if any, unamortized loan origination and other fees and costs, and purchased premiums or discounts.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 7

-Subparagraph a

-Article 9

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.7(a))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Name:	us-gaap_LoansReceivableNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant