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This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.No definition available.false2Assets, Fair Value Disclosure, RecurringfalseFair Value Measurements (Financial Assets And Financial Liabilities Measured At Fair Value On A Recurring Basis) (Details) (USD $)ThousandsUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.bhbt.com/2011-03-31/role/DisclosureFairValueMeasurementsFinancialAssetsAndFinancialLiabilitiesMeasuredAtFairValueOnRecurringBasisDetails224