Exercise price of the warrants.

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

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-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column A

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+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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

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-Name Accounting Standards Codification

-Glossary Antidilution

-URI http://asc.fasb.org/extlink&oid=6505113

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

-Publisher FASB

-Name Accounting Standards Codification

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-URI http://asc.fasb.org/extlink&oid=6510752

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Contingent Stock Agreement

-URI http://asc.fasb.org/extlink&oid=6508534

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Number of warrants or rights outstanding.

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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.(i))

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

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

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-Name Regulation S-X (SX)

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-Section 08

-Paragraph i

-Article 4

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Earnings Per Common Share - Narrative (Details) (USD $)	12 Months Ended
Earnings Per Common Share - Narrative (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Class of Warrant or Right [Line Items]
Weighted Average Number Diluted Shares Outstanding Adjustment	18,861	0	1,063
Options and warrants not included in computation of diluted earnings per common shares			63,308
Dilutive effect of Capital Purchase Plan warrants			1,063prk_DilutiveEffectOfWarrant
Exercise price of Capital Purchase Plan warrants to purchase common shares		$ 65.97invest_InvestmentWarrantsExercisePrice
U.S. Treasury's Capital Purchase Program
Class of Warrant or Right [Line Items]
Warrants to purchase common shares outstanding related to common stock issuances		227,376	227,376
2013 Long Term Incentive Plan [Member]
Class of Warrant or Right [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	21,975