Summary of Significant Accounting Policies Inventories (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Summary of Significant Accounting Policies [Abstract]
Inventory, Raw Materials, Net of Reserves	$ 164	$ 402
Inventory, Finished Goods, Net of Reserves	2,729	2,841
Inventory, Net	$ 2,893	$ 3,243