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Loans and Asset Quality Information (Summary of Balances related to the expired agreement) (Details) - USD ($) $ in Thousands	Sep. 22, 2016	Apr. 01, 2016	Jul. 01, 2014
Cooperative Bank non-single family agreement termination July 1, 2014 [Member]
Carrying value of total covered loans transferred to non-covered			$ 39,700
Covered nonaccrual loans transferred to non-covered			9,700
Covered foreclosed real estate transferred to non-covered			3,000
Allowance for loan losses associated with covered loans transferred to allowance for non-covered loans			$ 1,700
Bank of Asheville non- single family agreement termination April 1, 2016 [Member]
Carrying value of total covered loans transferred to non-covered		$ 17,737
Covered nonaccrual loans transferred to non-covered		2,785
Covered foreclosed real estate transferred to non-covered		1,165
Allowance for loan losses associated with covered loans transferred to allowance for non-covered loans		$ 307
Remaining loss share agreement terminations September 22, 2016 [Member]
Carrying value of total covered loans transferred to non-covered	$ 78,387
Covered nonaccrual loans transferred to non-covered	4,194
Covered foreclosed real estate transferred to non-covered	385
Allowance for loan losses associated with covered loans transferred to allowance for non-covered loans	$ 1,074