Income Taxes (Details 4) $ in Thousands	Jan. 02, 2016 USD ($)
United States federal [Member]
Summary of operating loss carryforward
Operating loss carry forwards	$ 25,976	[1]
California State [Member]
Summary of operating loss carryforward
Operating loss carry forwards	240,885	[1]
States other than California [Member]
Summary of operating loss carryforward
Operating loss carry forwards	3,177	[1]
Foreign Tax Authority [Member]
Summary of operating loss carryforward
Operating loss carry forwards	$ 7,193

[1] Includes net operating losses that arose directly from tax deductions for stock compensation greater than compensation recognized for financial reporting.