Loans (Details 3) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Beginning Balance	$ 7,941	$ 7,960	$ 7,611
Provision	785	1,390	1,795
Recoveries	37	178	19
Charge offs	(1,332)	(1,587)	(1,465)
Ending balance	7,431	7,941	7,960
Individually evaluated for impairment	2,434	3,178	1,496
Collectively evaluated for impairment	4,997	4,763	6,464
Individually evaluated for impairment	12,439	17,219	11,416
Collectively evaluated for impairment	479,791	432,869	433,272
Commercial Loan
Beginning Balance	3,406	3,862	3,525
Provision	(270)	245	784
Recoveries	6	166	7
Charge offs	(128)	(867)	(454)
Ending balance	3,014	3,406	3,862
Individually evaluated for impairment	1,327	1,663	1,126
Collectively evaluated for impairment	1,687	1,743	2,736
Individually evaluated for impairment	5,263	6,484	5,222
Collectively evaluated for impairment	127,370	120,708	128,085
Commercial Real Estate
Beginning Balance	3,175	3,674	3,706
Provision	142	(269)	416
Recoveries	4	6
Charge offs	(518)	(236)	(448)
Ending balance	2,803	3,175	3,674
Individually evaluated for impairment	674	885	370
Collectively evaluated for impairment	2,129	2,290	3,304
Individually evaluated for impairment	4,204	8,063	6,194
Collectively evaluated for impairment	208,096	196,375	192,739
Residential Real Estate
Beginning Balance	1,242	211	191
Provision	877	1,398	474
Recoveries	21		8
Charge offs	(629)	(367)	(462)
Ending balance	1,511	1,242	211
Individually evaluated for impairment	407	615
Collectively evaluated for impairment	1,104	627	211
Individually evaluated for impairment	2,946	2,603
Collectively evaluated for impairment	139,636	112,123	108,519
Consumer Loan
Beginning Balance	118	213	189
Provision	36	16	121
Recoveries	6	6	4
Charge offs	(57)	(117)	(101)
Ending balance	103	118	213
Individually evaluated for impairment	26	15
Collectively evaluated for impairment	77	103	213
Individually evaluated for impairment	26	69
Collectively evaluated for impairment	4,689	3,663	3,929
Unallocated Loans
Beginning Balance
Provision
Recoveries
Charge offs
Ending balance
Individually evaluated for impairment
Collectively evaluated for impairment
Individually evaluated for impairment
Collectively evaluated for impairment

Reflects the gross amount charged against earnings during the period as credit losses (bad debt expense) based on review of the loan and lease portfolio and application of the methodology for estimating credit losses.

+ References+ Details

Reflects a reduction in bad debt expense attributable to collections of loans and lease receivables which had previously been fully or partially charged off as bad debts.

+ References+ Details

- Definition

Reflects the amount of loans and leases that have been removed, or charged off, from both loan receivables and the reserve for credit losses, typically because they are considered to be not salvageable or have been purchased by unconsolidated collection entities.

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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 5

-Paragraph 8, 9

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (b)(1)(ii)

-URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544

Reference 3: 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(d))

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

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher OTS

-Name Federal Regulation (FR)

-Number Title 12

-Section 563c.102

-Paragraph 8

-Subparagraph a(ii)

-Chapter V

-Subsection I

-LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. It will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 7

-Subparagraph d

-Article 9

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 114

-Paragraph 20

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 6

-Section L

-Subsection 1

+ Details