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Time Deposit Maturities, After One but Within Three Years - Amount of time deposits maturing after one, but within three fiscal years, following the latest fiscal year. Time deposits include, but are not limited to, certificates of deposits, individual retirement accounts and open accounts.

No definition available.

Name:	bpfh_TimeDepositMaturitiesAfterOneButWithinThreeYears
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Time Deposit Maturities, After Three but Within Five Years - Amount of time deposits maturing after three, but within five fiscal years, following the latest fiscal year. Time deposits include, but are not limited to, certificates of deposits, individual retirement accounts and open accounts.

No definition available.

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Time Deposit Maturities, Less than Three Months - Amount of time deposits maturing in the next three months following the latest fiscal year. Time deposits include, but are not limited to, certificates of deposits, individual retirement accounts and open accounts.

No definition available.

Name:	bpfh_TimeDepositMaturitiesLessThanThreeMonths
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Time Deposit Maturities, Six to Twelve Months - Amount of time deposits maturing within six to twelve months following the latest fiscal year. Time deposits include, but are not limited to, certificates of deposits, individual retirement accounts and open accounts.

No definition available.

Name:	bpfh_TimeDepositMaturitiesSixToTwelveMonths
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Time Deposit Maturities, Three to Six Months - Amount of time deposits maturing within three to six months following the latest fiscal year. Time deposits include, but are not limited to, certificates of deposits, individual retirement accounts and open accounts.

No definition available.

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- Details

Name:	bpfh_TimeDepositsLineItems
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Amount of time deposits maturing after the fifth fiscal year following the latest fiscal year. Time deposits include, but are not limited to, certificates of deposits, individual retirement accounts and open accounts.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Amount of deposits that cannot be withdrawn before a set date without penalty or for which notice of withdrawal is required. Time deposits include, but are not limited to, certificates of deposits, individual retirement accounts and open accounts.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.12)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 12

-Article 9