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Employee Benefit Plans - Deferred Compensation Plan (Details) - Former CEO - USD ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
May 31, 2013 | Dec. 31, 2016 | Dec. 31, 2015
Deferred compensation plan |  |  |
Deferred compensation payment period following retirement | 15 years |  |
Amount accrued under deferred compensation agreement |  | $ 1,200 | $ 1,200
Compensation expense |  | $ 46 | $ 104

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- Definition The carrying amount of the liability as of the balance sheet date to an individual under a deferred compensation arrangement. This amount may be the result of periodic accruals made over the period of active employment, or reflect termination benefits resulting contractual terms or a death benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 30 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363 + Details
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