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Purchase of Northwoods National Bank, Rhinelander, Wisconsin, Branch of the Baraboo National Bank (Details Textual) (Northwoods National Bank [Member], USD $) In Thousands, unless otherwise specified	0 Months Ended
	Apr. 11, 2014
Northwoods National Bank [Member]
Business Acquisition [Line Items]
Core deposit intangible, Amortization period	5 years
Purchase premium	$ 654

In a business combination in which the amount of net identifiable assets acquired and liabilities assumed exceeds the aggregate consideration transferred or to be transferred (as defined), this element represents the amount of gain recognized by the entity.

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