Investment Securities (Amortized Cost and Estimated Fair Values) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Schedule of Investments [Line Items]
Held-to-maturity Securities, Amortized Cost	$ 56,013	$ 36,427
Held-to-maturity Securities, Unrealized Gains	1,465	1,254
Held-to-maturity Securities, Unrealized Losses	(94)
Held-to-maturity, Estimated Fair Value	57,384	37,681
Available-for-sale Securities, Amortized Cost	127,038	107,543
Available-for-sale Securities, Unrealized Gains	1,135	913
Available-for-sale Securities, Unrealized Losses	(472)	(926)
Available-for-sale Securities, Estimated Fair Value	127,701	107,530
US Government agency obligations [Member]
Schedule of Investments [Line Items]
Held-to-maturity Securities, Amortized Cost	7,154
Held-to-maturity Securities, Unrealized Gains	149
Held-to-maturity, Estimated Fair Value	7,303
Available-for-sale Securities, Amortized Cost	39,808	43,698
Available-for-sale Securities, Unrealized Gains	81	194
Available-for-sale Securities, Unrealized Losses	(33)	(1)
Available-for-sale Securities, Estimated Fair Value	39,856	43,891
Government Sponsored Entities (GSE) mortgage-backed securities [Member]
Schedule of Investments [Line Items]
Held-to-maturity Securities, Amortized Cost	11,919	14,363
Held-to-maturity Securities, Unrealized Gains	524	493
Held-to-maturity, Estimated Fair Value	12,443	14,856
Available-for-sale Securities, Amortized Cost	30,968	24,792
Available-for-sale Securities, Unrealized Gains	683	533
Available-for-sale Securities, Unrealized Losses		(12)
Available-for-sale Securities, Estimated Fair Value	31,651	25,313
Collateralized mortgage obligations GSE [Member]
Schedule of Investments [Line Items]
Held-to-maturity Securities, Amortized Cost	8,314	8,139
Held-to-maturity Securities, Unrealized Gains	179	163
Held-to-maturity, Estimated Fair Value	8,493	8,302
Available-for-sale Securities, Amortized Cost	6,535	6,148
Available-for-sale Securities, Unrealized Gains	19	24
Available-for-sale Securities, Unrealized Losses	(21)	(20)
Available-for-sale Securities, Estimated Fair Value	6,533	6,152
Corporate bonds [Member]
Schedule of Investments [Line Items]
Held-to-maturity Securities, Amortized Cost	6,535	1,548
Held-to-maturity Securities, Unrealized Gains	65	18
Held-to-maturity Securities, Unrealized Losses	(94)
Held-to-maturity, Estimated Fair Value	6,506	1,566
Available-for-sale Securities, Amortized Cost	38,904	27,141
Available-for-sale Securities, Unrealized Gains	263	84
Available-for-sale Securities, Unrealized Losses	(397)	(878)
Available-for-sale Securities, Estimated Fair Value	38,770	26,347
State and municipal tax-exempt [Member]
Schedule of Investments [Line Items]
Held-to-maturity Securities, Amortized Cost	22,091	12,377
Held-to-maturity Securities, Unrealized Gains	548	580
Held-to-maturity, Estimated Fair Value	22,639	12,957
Available-for-sale Securities, Amortized Cost	1,112
Available-for-sale Securities, Unrealized Losses	(7)
Available-for-sale Securities, Estimated Fair Value	1,105
Asset-backed securities [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost	9,684	5,737
Available-for-sale Securities, Unrealized Gains	89	78
Available-for-sale Securities, Unrealized Losses	(1)
Available-for-sale Securities, Estimated Fair Value	9,772	5,815
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.

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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

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

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

-Publisher FASB

-Name FASB Staff Position (FSP)

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

-Publisher FASB

-Name Accounting Standards Codification

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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)

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+ 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