Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Goodwill, Core Deposit Intangibles and Other Intangible Assets (Goodwill) (Details) (USD $)	0 Months Ended
	Oct. 18, 2013	Nov. 22, 2013	Dec. 31, 2014	Dec. 31, 2013
Goodwill [Line Items]
Goodwill resulting from acquisition			$ 35,583,000us-gaap_Goodwill	$ 35,583,000us-gaap_Goodwill
Morrill
Goodwill [Line Items]
Goodwill resulting from acquisition	4,956,000
Morrill \| Core Deposits
Goodwill [Line Items]
Recognized intangibles	8,500,000
Intangibles amortization period	8 years
Freedom
Goodwill [Line Items]
Goodwill resulting from acquisition		0
Freedom \| Core Deposits
Goodwill [Line Items]
Recognized intangibles		$ 890,000
Intangibles amortization period		8 years