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Bank Owned Life Insurance	12 Months Ended
	Dec. 31, 2017
Insurance [Abstract]
Bank Owned Life Insurance	Bank Owned Life Insurance We own life insurance policies on the lives of certain officers designated by the Board of Directors to fund our employee benefit programs, and death benefits provided under the specific terms of these insurance policies are estimated to be $81.9 million at December 31, 2017. The benefits to employees' beneficiaries are limited to the employee's active service period. The investment in bank owned life insurance policies are reported in interest receivable and other assets at their cash surrender value of $38.1 million and $32.4 million at December 31, 2017 and 2016, respectively. The cash surrender value includes both the original premiums paid for the life insurance policies and the accumulated accretion of policy income since inception of the policies. Income of $845 thousand, $844 thousand and $814 thousand was recognized on the life insurance policies in 2017, 2016 and 2015, respectively. We regularly monitor the credit ratings of our insurance carriers to ensure that they comply with our policy.

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- Definition

The entire disclosure for corporate (COLI) or bank (BOLI) owned life insurance including the amount of cash surrender value that could be received as of the date of the statement of financial position, any restrictions on the company's ability to obtain the value of the life insurance policy on surrender, or any other additional information desired to be disclosed.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 325
-URI http://asc.fasb.org/topic&trid=2197064

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