Investment Securities (Amortized Cost and Estimated Fair Values) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Schedule of Investments [Line Items]
Held-to-maturity Securities, Amortized Cost	$ 66,974	$ 66,024
Held-to-maturity Securities, Unrealized Gains	2,074	2,313
Held-to-maturity Securities, Unrealized Losses	(578)	(30)
Held-to-maturity, Total investment securities, Estimated Fair Value	68,470	68,307
Available-for-sale Securities, Amortized Cost	132,529	134,035
Available-for-sale Securities, Unrealized Gains	1,405	1,657
Available-for-sale Securities, Unrealized Losses	(379)	(404)
Available-for-sale securities, carrying amount	133,555	135,288
US Government agency obligations [Member]
Schedule of Investments [Line Items]
Held-to-maturity Securities, Amortized Cost	7,322	7,266
Held-to-maturity Securities, Unrealized Gains	557	563
Held-to-maturity, Total investment securities, Estimated Fair Value	7,879	7,829
Available-for-sale Securities, Amortized Cost	40,985	35,424
Available-for-sale Securities, Unrealized Gains	134	133
Available-for-sale Securities, Unrealized Losses	(12)	(18)
Available-for-sale securities, carrying amount	41,107	35,539
Government Sponsored Entities (GSE) mortgage-backed securities [Member]
Schedule of Investments [Line Items]
Held-to-maturity Securities, Amortized Cost	7,981	9,135
Held-to-maturity Securities, Unrealized Gains	387	435
Held-to-maturity, Total investment securities, Estimated Fair Value	8,368	9,570
Available-for-sale Securities, Amortized Cost	20,823	21,885
Available-for-sale Securities, Unrealized Gains	343	507
Available-for-sale securities, carrying amount	21,166	22,392
Corporate bonds [Member]
Schedule of Investments [Line Items]
Held-to-maturity Securities, Amortized Cost	6,404	6,500
Held-to-maturity Securities, Unrealized Gains	413	371
Held-to-maturity Securities, Unrealized Losses		(11)
Held-to-maturity, Total investment securities, Estimated Fair Value	6,817	6,860
Available-for-sale Securities, Amortized Cost	34,699	41,005
Available-for-sale Securities, Unrealized Gains	691	772
Available-for-sale Securities, Unrealized Losses	(130)	(330)
Available-for-sale securities, carrying amount	35,260	41,447
Collateralized mortgage obligations GSE [Member]
Schedule of Investments [Line Items]
Held-to-maturity Securities, Amortized Cost	6,563	7,204
Held-to-maturity Securities, Unrealized Gains	146	185
Held-to-maturity Securities, Unrealized Losses	(12)
Held-to-maturity, Total investment securities, Estimated Fair Value	6,697	7,389
Available-for-sale Securities, Amortized Cost	26,582	21,526
Available-for-sale Securities, Unrealized Gains	223	151
Available-for-sale Securities, Unrealized Losses	(211)	(27)
Available-for-sale securities, carrying amount	26,594	21,650
State and municipal tax-exempt [Member]
Schedule of Investments [Line Items]
Held-to-maturity Securities, Amortized Cost	38,704	35,919
Held-to-maturity Securities, Unrealized Gains	571	759
Held-to-maturity Securities, Unrealized Losses	(566)	(19)
Held-to-maturity, Total investment securities, Estimated Fair Value	38,709	36,659
Available-for-sale Securities, Amortized Cost	5,196	3,195
Available-for-sale Securities, Unrealized Gains	1	1
Available-for-sale Securities, Unrealized Losses	(12)	(11)
Available-for-sale securities, carrying amount	5,185	3,185
Asset-backed securities [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost	2,967	9,723
Available-for-sale Securities, Unrealized Gains	8	90
Available-for-sale securities, carrying amount	2,975	9,813
Certificates of deposit [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost	1,250	1,250
Available-for-sale Securities, Unrealized Gains	4	3
Available-for-sale Securities, Unrealized Losses	(1)	(5)
Available-for-sale securities, carrying amount	1,253	1,248
Equity securities [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost	27	27
Available-for-sale Securities, Unrealized Gains	1
Available-for-sale Securities, Unrealized Losses	(13)	(13)
Available-for-sale securities, carrying amount	$ 15	$ 14

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

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-Publisher FASB

-Name FASB Staff Position (FSP)

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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

-Topic 320

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-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

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

-Publisher FASB

-Name FASB Staff Position (FSP)

-Number FAS115-1/124-1

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-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

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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