Income Taxes (Details 2) (USD $)	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012
Deferred tax assets:
Accrued compensation and related expense	$ 21,064,000	$ 16,743,000
Tax basis in excess of financial basis of net accounts receivable	2,363,000	2,382,000
Net operating loss carryforwards	5,421,000	6,682,000
Tax basis in excess of financial basis of fixed assets	1,489,000	978,000
Excess tax over book amortization		5,926,000
Accrued expenses and other	902,000	2,565,000
Total gross deferred tax assets	31,239,000	35,276,000
Less: valuation allowance	(6,101,000)	(7,287,000)
Total deferred tax assets net of valuation allowance	25,138,000	27,989,000
Deferred tax liabilities:
Tax basis in excess of financial basis of debentures	5,024,000	6,371,000
Excess book over tax amortization	2,938,000
Total deferred tax liabilities	7,962,000	6,371,000
Net deferred tax assets	17,176,000	21,618,000
Valuation allowance
Net change in valuation allowance	(1,200,000)	2,300,000
Increase in deferred tax liability associated with goodwill and a corresponding decrease to valuation allowance	1,400,000
Net operating losses
Valuation allowance
Net change in valuation allowance	(600,000)	(200,000)
Net operating losses | NeuCo, Inc.
Valuation allowance
Net change in valuation allowance	(400,000)
Net operating losses | Foreign
Valuation allowance
Net change in valuation allowance	$ (400,000)	$ 2,500,000