Income Taxes Income tax (benefit) expense (Details) (USD $)	12 Months Ended
	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Income Tax Disclosure [Abstract]
Tax benefits included in unrecognized tax benefit	$ 500,000	$ 600,000
Net loss carryforward state tax credits	1,300,000
Valuation Allowance, Amount	23,579,000	22,494,000
Federal	(1,125,000)	3,536,000	5,324,000
State	31,000	195,000	473,000
Foreign	296,000	412,000	79,000
Current taxes payable	(798,000)	4,143,000	5,876,000
Federal	1,200,000	194,000	3,202,000
State	511,000	2,937,000	197,000
Foreign	1,143,000	198,000	463,000
Deferred taxes (benefit)	2,854,000	3,329,000	3,862,000
Income Tax Expense (Benefit)	2,056,000	7,472,000	9,738,000
State income tax net loss carryforwards	14,700,000
Foreign net loss carryforwards	$ 2,700,000