Fair Value Measurements (Hierarchy Level and the Fair Value of the Related Assets or Portfolios) (Details) (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Impaired loans	$ 6,734	$ 27,239
Other real estate owned	35,793	32,702
Other real estate owned	14,726	30,766
Level 1 [Member]
Impaired loans	0
Other real estate owned
Level 2 [Member]
Impaired loans	428	1,157
Other real estate owned	2,016	18,429
Level 3 [Member]
Impaired loans	6,306	26,082
Other real estate owned	$ 12,710	$ 12,337

Carrying amount as of the balance sheet date of land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 28
-Article 12

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 01-6
-Paragraph 13
-Subparagraph f

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Audit and Accounting Guide (AAG)
-Number AAG-DEP
-Chapter 11
-Paragraph 2, 9, 10, 11
-IssueDate 2006-05-01

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph c
-Subparagraph Schedule III
-Article 5

Name:	us-gaap_RealEstateAcquiredThroughForeclosure
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant