Annual report pursuant to Section 13 and 15(d)

Deposits (Details Textual)

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Deposits (Details Textual) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Time Deposits 250000 Or More $ 22.8nwin_TimeDeposits250000OrMore $ 19.8nwin_TimeDeposits250000OrMore