10. Loans Receivable, Net (Details) (USD $)	Sep. 30, 2012	Mar. 31, 2012
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	$ 0
TDRs included in impaired loans	$ 16,700,000	$ 18,000,000

Recorded investment in financing receivables that are 90 days or more past due and still accruing.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 7

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5111-111524

Name:	us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant