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Allowance for Loan Losses (Details 1) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Jun. 30, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Dec. 31, 2010
Allowance for loan losses and the recorded investment in loans by portfolio segment
Total ending allowance balance	$ 18,568	$ 18,374	$ 18,882	$ 19,110	$ 18,586	$ 19,064
Total ending loans balance	12,904			12,562
Allowance for Loan Losses [Member]
Allowance for loan losses and the recorded investment in loans by portfolio segment
Allowance For Loan Losses, Individually evaluated for impairment	2,403		2,136
Allowance For Loan Losses, Collectively evaluated for impairment	16,165		16,746
Total ending allowance balance	18,568		18,882
Loans [Member]
Allowance for loan losses and the recorded investment in loans by portfolio segment
Loans: Individually evaluated for impairment	12,865		7,960
Loans: Collectively evaluated for impairment	1,145,956		978,189
Total ending loans balance	1,158,821		986,149
Commercial [Member] | Allowance for Loan Losses [Member]
Allowance for loan losses and the recorded investment in loans by portfolio segment
Allowance For Loan Losses, Individually evaluated for impairment	2,403		2,136
Allowance For Loan Losses, Collectively evaluated for impairment	5,655		5,881
Total ending allowance balance	8,058		8,017
Commercial [Member] | Loans [Member]
Allowance for loan losses and the recorded investment in loans by portfolio segment
Loans: Individually evaluated for impairment	12,865		7,960
Loans: Collectively evaluated for impairment	436,121		345,350
Total ending loans balance	448,986		353,310
Real estate [Member] | Allowance for Loan Losses [Member]
Allowance for loan losses and the recorded investment in loans by portfolio segment
Allowance For Loan Losses, Collectively evaluated for impairment	2,974		2,472
Total ending allowance balance	2,974		2,472
Real estate [Member] | Loans [Member]
Allowance for loan losses and the recorded investment in loans by portfolio segment
Loans: Collectively evaluated for impairment	177,218		157,663
Total ending loans balance	177,218		157,663
Mortgage Warehousing [Member] | Allowance for Loan Losses [Member]
Allowance for loan losses and the recorded investment in loans by portfolio segment
Allowance For Loan Losses, Collectively evaluated for impairment	1,716		1,695
Total ending allowance balance	1,716		1,695
Mortgage Warehousing [Member] | Loans [Member]
Allowance for loan losses and the recorded investment in loans by portfolio segment
Loans: Collectively evaluated for impairment	244,660		208,726
Total ending loans balance	244,660		208,726
Consumer [Member] | Allowance for Loan Losses [Member]
Allowance for loan losses and the recorded investment in loans by portfolio segment
Allowance For Loan Losses, Collectively evaluated for impairment	5,820		6,698
Total ending allowance balance	5,820		6,698
Consumer [Member] | Loans [Member]
Allowance for loan losses and the recorded investment in loans by portfolio segment
Loans: Collectively evaluated for impairment	287,957		266,450
Total ending loans balance	$ 287,957		$ 266,450

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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-Publisher FASB

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The balance of financing receivables that were collectively evaluated for impairment.

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The balance of financing receivables that were individually evaluated for impairment.

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Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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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.



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