Deposits (Deposits) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Deposit Type
Total	$ 472,254,000us-gaap_TimeDeposits
Interest-bearing transaction accounts	173,659,000	134,618,000
Money market deposit accounts	337,387,000us-gaap_DepositsMoneyMarketDeposits	275,801,000us-gaap_DepositsMoneyMarketDeposits
Governmental deposit accounts	161,305,000pebo_DepositsGovernmental	132,379,000pebo_DepositsGovernmental
Savings accounts	295,307,000us-gaap_DepositsSavingsDeposits	215,802,000us-gaap_DepositsSavingsDeposits
Total retail interest-bearing deposits	1,400,221,000	1,121,826,000
Total interest-bearing deposits	1,439,912,000	1,170,867,000
Non-interest-bearing	493,162,000	409,891,000
Total deposits	1,933,074,000us-gaap_Deposits	1,580,758,000us-gaap_Deposits
Related Party Deposits	34,000,000us-gaap_RelatedPartyDepositLiabilities	5,900,000us-gaap_RelatedPartyDepositLiabilities
Brokered CD's
Deposit Type
Total	39,691,000	49,041,000
Retail CD's
Deposit Type
Retail CD's $250,000 or More	59,031,000	63,891,000
Retail CD's Less than $250,000	373,532,000	299,335,000
Total	$ 432,563,000	$ 363,226,000

Deposits, Governmental

No definition available.

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- Definition

Time Deposits, $250,000 or More

+ References

No definition available.

+ Details

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- Definition

Time Deposits, Less than $250,000

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

+ References

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

+ Details

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- Definition

Amount of deposits in accounts that offer many of the same services as checking accounts although transactions may be somewhat more limited, share some of the characteristics of a money market fund and are insured by the Federal government, also known as money market accounts.

+ References

+ Details

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- Definition

Amount of interest bearing deposits with no stated maturity, which may include passbook and statement savings accounts and money-market deposit accounts (MMDAs).

+ References

+ Details

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- Definition

The aggregate of all domestic and foreign interest-bearing deposit liabilities.

+ References

+ Details

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- Definition

Amount of interest-bearing domestic checking deposit liabilities.

+ References

+ Details

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Period Type:	instant

- Definition

Amount of interest-bearing domestic retail deposit liabilities.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

The aggregate amount of all domestic and foreign noninterest-bearing deposits liabilities held by the entity.

+ References

+ Details

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- Definition

Amount of deposits held by the entity for a related party (entity, shareholder, employee).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(k))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

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- Definition

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.

+ References

+ Details

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- Details

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