Income Taxes (Details 4) (USD $) In Thousands, unless otherwise specified	Jan. 03, 2015
United States federal [Member]
Summary of operating loss carryforward
Operating loss carry forwards	$ 6,151
California State [Member]
Summary of operating loss carryforward
Operating loss carry forwards	241,015
States other than California [Member]
Summary of operating loss carryforward
Operating loss carry forwards	2,558
Foreign Tax Authority [Member]
Summary of operating loss carryforward
Operating loss carry forwards	$ 7,182