Income Taxes Income tax (benefit) expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Income Tax Disclosure [Abstract]
Tax benefits included in unrecognized tax benefit	$ 396	$ 510
Net loss carryforward state tax credits	900
Valuation Allowance, Amount	22,929	23,579
Currently payable:
Federal	1,754	(1,125)	$ 3,536
State	(316)	31	195
Foreign	368	296	412
Current taxes payable	1,806	(798)	4,143
Deferred:
Federal	672	1,200	194
State	117	511	2,937
Foreign	179	1,143	198
Deferred taxes (benefit)	968	2,854	3,329
Income Tax Expense (Benefit)	2,774	$ 2,056	$ 7,472
State income tax net loss carryforwards	12,700
Foreign net loss carryforwards	$ 3,100