Commitments and Contingencies (Capital Leases) (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Jan. 31, 2014
Capital Leased Assets [Line Items]
Depreciation expense for fixed assets under capital leases	$ 200	$ 300
Data Warehouse Lease Through January 2017
Capital Leased Assets [Line Items]
Monthly principal and interest payments			$ 18
Future minimum payments	$ 212