Consolidated Statements of Changes in Stockholders' Equity (USD $) In Thousands	Total	Common Stock [Member]	Capital Surplus [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock [Member]
Balance at Dec. 31, 2011	$ 127,333us-gaap_StockholdersEquity	$ 8,935	$ 39,963	$ 78,713	$ (278)
Net income	10,589us-gaap_NetIncomeLoss			10,589
Other comprehensive loss, net of income taxes	(12)				(12)
Dividends declared	(5,504)us-gaap_Dividends			(5,504)
Stock based compensation	40		40
Balance at Dec. 31, 2012	132,446us-gaap_StockholdersEquity	8,935	40,003	83,798	(290)
Net income	5,721us-gaap_NetIncomeLoss			5,721
Other comprehensive loss, net of income taxes	(408)				(408)
Dividends declared	(5,511)us-gaap_Dividends			(5,511)
Stock based compensation	25		25
Retirement of treasury stock		(28)	(384)			412
Fair value of consideration exchanged	106,519pfis_FairValueOfConsiderationExchanged	6,707	106,465			(6,653)
Balance at Dec. 31, 2013	238,792us-gaap_StockholdersEquity	15,614	146,109	84,008	(698)	(6,241)
Net income	17,649us-gaap_NetIncomeLoss			17,649
Other comprehensive loss, net of income taxes	(131)				(131)
Dividends declared	(9,360)us-gaap_Dividends			(9,360)
Stock based compensation	70		70
Share retirement	(109)	(7)	(102)
Reissuance under option plan	21		10			11
Repurchase and retirement	(70)					(70)
Settlement of stock options	(83)		(83)
Retirement of treasury stock		(510)	(5,790)			6,300
Balance at Dec. 31, 2014	$ 246,779us-gaap_StockholdersEquity	$ 15,097	$ 140,214	$ 92,297	$ (829)

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Stock Options Repurchased And Retired During Period Value

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This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation".

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Amount of paid and unpaid cash, stock, and paid-in-kind (PIK) dividends declared, for example, but not limited to, common and preferred stock.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

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Amount of decrease of par value, additional paid in capital (APIC) and retained earnings of common and preferred stock retired from treasury when treasury stock is accounted for under the par value method.

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