Commitments, Contingencies and Uncertainties (Future Minimum Payments For Operating Leases) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating Leased Assets [Line Items]
Operating Leases, Rent Expense	$ 1,900	$ 1,800	$ 1,200
2016	900
2017	648
2018	538
2019	541
2020	$ 548
Newman Land Lease
Operating Leased Assets [Line Items]
Lease Expiration Date	Jun. 30, 2033
Lessee Leasing Arrangements, Operating Leases, Renewal Term	25 years
Warehouse Facilities
Operating Leased Assets [Line Items]
Lease Expiration Date	Dec. 31, 2015
Other Property
Operating Leased Assets [Line Items]
Lessee Leasing Arrangements, Operating Leases, Term of Contract	P5Y