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Deferred Loan Costs (Details Narrative) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2013 | Dec. 31, 2012 | Mar. 31, 2012
--- | --- | --- | ---
Notes to Financial Statements |  |  |
Loan Costs - deferred | $ 1,323 | $ 1,324 | $ 1,340

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- Definition The amount of loans costs deferred. + References No definition available. + Details
Name: | FBP_LoanCostsDeferred
Namespace Prefix: | FBP_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
Name: | FBP_NotesToFinancialStatementsAbstract
Namespace Prefix: | FBP_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration