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Income Taxes (Reconciliation the amount of income tax expense and the statutory Federal income tax rate) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Effective Income Tax Rate Reconciliation [Line Items]
Income before income tax expense	$ 6,813	$ 7,060	$ 6,859	$ 6,677	$ 6,145	$ 6,086	$ 6,567	$ 6,386	$ 27,409	$ 25,184	$ 21,337
Federal statutory rate									35.00%	35.00%	35.00%
Computed "expected" Federal income tax expense									9,593	8,814	7,468
State tax, net of Federal tax benefit									(53)	706	933
Bank owned life insurance									(477)	(356)	(363)
Exercised- shares									(1,645)	(1,228)	(595)
Bargain gain on Saddle River Valley Bank acquisition									0	(314)	0
Other, net									66	55	(32)
Income tax									$ 7,484	$ 7,677	$ 7,411

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to bargain gain on acquisition.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible life insurance expense.

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