Investment Securities (Amortized Cost and Estimated Fair Values) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Schedule of Investments [Line Items]
Held-to-maturity Securities, Amortized Cost	$ 54,090	$ 36,427
Held-to-maturity Securities, Unrealized Gains	2,375	1,254
Held-to-maturity Securities, Unrealized Losses	(5)
Held-to-maturity, Estimated Fair Value	56,460	37,681
Available-for-sale Securities, Amortized Cost	122,377	107,543
Available-for-sale Securities, Unrealized Gains	1,792	913
Available-for-sale Securities, Unrealized Losses	(269)	(926)
Available-for-sale Securities, Estimated Fair Value	123,900	107,530
US Government agency obligations [Member]
Schedule of Investments [Line Items]
Held-to-maturity Securities, Amortized Cost	7,210
Held-to-maturity Securities, Unrealized Gains	595
Held-to-maturity, Estimated Fair Value	7,805
Available-for-sale Securities, Amortized Cost	36,772	43,698
Available-for-sale Securities, Unrealized Gains	110	194
Available-for-sale Securities, Unrealized Losses	(1)	(1)
Available-for-sale Securities, Estimated Fair Value	36,881	43,891
Government Sponsored Entities (GSE) mortgage-backed securities [Member]
Schedule of Investments [Line Items]
Held-to-maturity Securities, Amortized Cost	10,473	14,363
Held-to-maturity Securities, Unrealized Gains	544	493
Held-to-maturity, Estimated Fair Value	11,017	14,856
Available-for-sale Securities, Amortized Cost	24,183	24,792
Available-for-sale Securities, Unrealized Gains	703	533
Available-for-sale Securities, Unrealized Losses		(12)
Available-for-sale Securities, Estimated Fair Value	24,886	25,313
Corporate bonds [Member]
Schedule of Investments [Line Items]
Held-to-maturity Securities, Amortized Cost	6,513	1,548
Held-to-maturity Securities, Unrealized Gains	271	18
Held-to-maturity Securities, Unrealized Losses	(5)
Held-to-maturity, Estimated Fair Value	6,779	1,566
Available-for-sale Securities, Amortized Cost	38,838	27,141
Available-for-sale Securities, Unrealized Gains	825	84
Available-for-sale Securities, Unrealized Losses	(224)	(878)
Available-for-sale Securities, Estimated Fair Value	39,439	26,347
Collateralized mortgage obligations GSE [Member]
Schedule of Investments [Line Items]
Held-to-maturity Securities, Amortized Cost	7,805	8,139
Held-to-maturity Securities, Unrealized Gains	196	163
Held-to-maturity, Estimated Fair Value	8,001	8,302
Available-for-sale Securities, Amortized Cost	10,746	6,148
Available-for-sale Securities, Unrealized Gains	62	24
Available-for-sale Securities, Unrealized Losses	(19)	(20)
Available-for-sale Securities, Estimated Fair Value	10,789	6,152
State and municipal tax-exempt [Member]
Schedule of Investments [Line Items]
Held-to-maturity Securities, Amortized Cost	22,089	12,377
Held-to-maturity Securities, Unrealized Gains	769	580
Held-to-maturity, Estimated Fair Value	22,858	12,957
Available-for-sale Securities, Amortized Cost	1,108
Available-for-sale Securities, Unrealized Losses	(11)
Available-for-sale Securities, Estimated Fair Value	1,097
Asset-backed securities [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost	9,703	5,737
Available-for-sale Securities, Unrealized Gains	88	78
Available-for-sale Securities, Estimated Fair Value	9,791	5,815
Certificates of Deposit [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost	1,000
Available-for-sale Securities, Unrealized Gains	4
Available-for-sale Securities, Unrealized Losses	(1)
Available-for-sale Securities, Estimated Fair Value	1,003
Equity securities [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost	27	27
Available-for-sale Securities, Unrealized Losses	(13)	(15)
Available-for-sale Securities, Estimated Fair Value	$ 14	$ 12

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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

-Publisher FASB

-Name FASB Staff Position (FSP)

-Number FAS115-1/124-1

-Paragraph 15D

-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 Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 12

-Subparagraph b

-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 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 16

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

-Publisher FASB

-Name FASB Staff Position (FSP)

-Number FAS115-1/124-1

-Paragraph 15C

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=7534914&loc=d3e22054-111558

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

-Publisher FASB

-Name FASB Staff Position (FSP)

-Number FAS115-1/124-1

-Paragraph 15E

-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 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 13

-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 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 14

-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 10: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 22

-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.

+ Details

- Definition

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References+ Details

- Definition

This item represents the gross unrealized gains for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.

+ References+ Details

- Definition

This item represents the aggregate fair value of investments in debt securities as of the balance sheet date and which are categorized as held-to-maturity.

+ References+ Details

- Definition

As of the balance sheet date, the excess of fair value over carrying value (amortized cost) of a debt security categorized as held-to-maturity, exclusive of dividend or interest income recognized but not yet received and exclusive of any write-downs for other-than-temporary impairment. Such item represents the gross unrecognized holding gain.

+ References+ Details

- Definition

As of the balance sheet date, the excess of carrying value (amortized cost) over fair value of a debt security categorized as held-to-maturity, exclusive of dividend or interest income recognized but not yet received and exclusive of any write-downs for other-than-temporary impairment. Such item represents the gross unrecognized holding loss.

+ References+ Details