Employee Stock Ownership Plan Employee Stock Ownership Plan (Narrative) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Stock Issued During Period, Shares, Employee Stock Ownership Plan	19,711	17,786
Stock Issued During Period, Value, Employee Stock Ownership Plan	$ 453	$ 271
Employee Stock Ownership Plan (ESOP), Number of Suspense Shares	126,828	164,036	146,539