Dollar Impact Of Environmental Adjustment Factor.

No definition available.

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- Definition

Loan amount structured as a borrowing base facility.

+ References

No definition available.

+ Details

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- Definition

Loan Amount Threshold

+ References

No definition available.

+ Details

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- Definition

Loan Value With Weighted-Average Loan-To-Value

+ References

No definition available.

+ Details

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- Definition

Lot And Single Family Resident Loan Pool Loan To Value Ratio Ceiling

+ References

No definition available.

+ Details

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- Definition

Maximum Loan To Value Percentage On Home Equity Loans

+ References

No definition available.

+ Details

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- Definition

Maximum origination value of loans which were subject to further refinement of valuation methodology.

+ References

No definition available.

+ Details

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- Definition

Maximum Percentage of Loan Related To Single Industry

+ References

No definition available.

+ Details

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- Definition

Number Of Days Past Due

+ References

No definition available.

+ Details

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- Definition

Number Of Loans With Calculated Risk Of Ten Or Higher

+ References

No definition available.

+ Details

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- Definition

Percentage Of Owner Occupied Commercial Real Estate Loans

+ References

No definition available.

+ Details

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- Definition

Percent Of Valuation Allowance In Excess Of Principal Balance Maximum

+ References

No definition available.

+ Details

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- Definition

Percent Of Valuation Allowance In Excess Of Principal Balance Minimum

+ References

No definition available.

+ Details

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- Definition

Reserves allocated to distressed industries

+ References

No definition available.

+ Details

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- Definition

Texas Leading Index economic condition indicator

+ References

No definition available.

+ Details

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- Definition

Troubled debt restructuring modifications recorded investment.

+ References

No definition available.

+ Details

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- Definition

Weighted Average Loan To Value Ratio Percentage

+ References

No definition available.

+ Details

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- Details

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- Definition

Reflects the amount of additional interest income that would have been recorded if impaired or nonperforming loans were instead current, in compliance with their original terms, and outstanding throughout the reporting period or since origination (if held for part of the period).

+ References

Reference 1: 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 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher OTS

-Name Federal Regulation (FR)

-Number Title 12

-Chapter V

-Section 563c.102

-Subsection I

-Paragraph 8

-Subparagraph j(ii)

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 15

-Paragraph 40

-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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Loans (Narrative) (Details) (USD $)	3 Months Ended
Loans (Narrative) (Details) (USD $)	Mar. 31, 2012 D	Mar. 31, 2011	Feb. 28, 2012	Dec. 31, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum loan-to-value percentage on home equity loans	80.00%
Maximum percentage loan related to single industry	10.00%
Additional interest that would have been recognized on non-accrual loans, net of tax	$ 642,000	$ 1,300,000
Number of loans with calculated risk of 10 or higher greater than $5 million	5
Loan amount threshold	5,000,000
Loan value with weighted-average loan-to-value	42,100,000
Weighted-average loan-to-value ratio	73.30%
Lots and single family resident loan pool loan-to-value ratio ceiling	80.00%
Loan amount structured as a borrowing base facility	6,000,000
Number of days past due for payment of interest on loans, minimum	120
General percentage of valuation allowance in excess of principal balance, maximum	30.00%
Texas Leading Index economic condition indicator		122.0	122.8	120.4
Maximum origination value of loans which were subject to further refinement of valuation methodology	1,000,000
Additional dollar impact of environmental adjustment factor to general valuation allowance	10,800,000	12,700,000		12,800,000
Reserves allocated to distressed industries	5,700,000			5,000,000
Commercial And Industrial Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Reserves allocated to distressed industries	4,700,000			4,100,000
Commercial Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of owner-occupied commercial real estate loans	58.00%
Troubled debt restructuring		4,200,000
Reserves allocated to distressed industries	$ 972,000			$ 922,000
Commercial And Industrial, Other Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of days past due for payment of interest on loans, minimum	180
Grade 13 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
General percentage of valuation allowance in excess of principal balance, minimum	30.00%