Summary of Accounting Policies Stock Dividend (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2014	Jun. 30, 2015
Summary Of Accounting Policies [Line Items]
Stock Split in Form of Stock Dividend Adjustment to Retained Earnings	$ 9
Common Stock, Par or Stated Value Per Share	$ 0.4867	$ 0.4867
Common Stock [Member]
Summary Of Accounting Policies [Line Items]
Stock Split in Form of Stock Dividend Adjustment to Retained Earnings	$ (2,365)