Other Real Estate Assets Owned (OREO) Other Real Estate Assets Owned (OREO) - Narrative (Details)	3 Months Ended	12 Months Ended
Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Other Real Estate [Abstract]
Other real estate	$ 3,727,000		$ 3,345,000	$ 4,051,000
Expenses (income) applicable to OREO	167,000	$ 67,000
Consumer mortgage loans, secured by residential real estate, foreclosure in process	$ 0		$ 530,000
Consumer mortgage loans, secured by residential real estate, foreclosure in process, number of loans			1

Consumer Mortgage Loans Secured By Residential Real Estate Foreclosure In Process Number of Loans

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- Definition

Consumer Mortgage Loans Secured by Residential Real Estate Foreclosure In Process

+ References

No definition available.

+ Details

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- Definition

Carrying amount as of the balance sheet date of all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings or defeasance; includes real and personal property; equity interests in corporations, partnerships, and joint ventures; and beneficial interests in trusts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4437-111522

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5162-111524

+ Details

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- Definition

Amount of expense recognized during the period for the foreclosure on real estate assets.

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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