Allowance for Loan Losses (Textual) (Details)	9 Months Ended	12 Months Ended
Sep. 30, 2012	Dec. 31, 2011
Allowance for Loan Losses (Textual) [Abstract]
Troubled debt restructuring disclosure	Company had no troubled debt restructurings	Company had no troubled debt restructurings

Voluntary or miscellaneous disclosures regarding a troubled debt restructuring, not otherwise listed in the existing taxonomy.

No definition available.

Name:	us-gaap_TroubledDebtRestructuringDebtorOther
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration