Employee Stock Ownership Plan Employee Stock Ownership Plan (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Stock Issued During Period, Shares, Employee Stock Ownership Plan	9,911	8,893
Stock Issued During Period, Value, Employee Stock Ownership Plan	$ 239	$ 115
Employee Stock Ownership Plan (ESOP), Number of Suspense Shares	136,628	172,929	146,539