v2.4.0.6

Segment Information (Geographic Area Sales) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 30, 2012	Sep. 30, 2012	Jul. 01, 2012	Apr. 01, 2012	Jan. 01, 2012	Oct. 02, 2011	Jul. 03, 2011	Apr. 03, 2011	Dec. 30, 2012	Jan. 01, 2012	Jan. 02, 2011
Segment Reporting Information [Line Items]
Net sales to customers, United States									$ 337,648	$ 292,148	$ 289,589
Net sales to customers, Other countries									62,387	55,865	43,300
Net sales to customers, Total	136,121	89,830	90,981	83,103	112,324	74,987	80,522	80,180	400,035	348,013	332,889
Long-lived assets, United States	7,803				8,254				7,803	8,254	6,009
Long-lived assets, Other countries	73				86				73	86	148
Long-lived assets, Total	7,876				8,340				7,876	8,340	6,157
Engagement [Member]
Segment Reporting Information [Line Items]
Net sales to customers, United States									226,578	186,243	189,486
Net sales to customers, Other countries									49,932	44,942	35,077
Non-Engagement [Member]
Segment Reporting Information [Line Items]
Net sales to customers, United States									111,070	105,905	100,103
Net sales to customers, Other countries									$ 12,455	$ 10,923	$ 8,223

X

- Definition

Amount of long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets, located in the entity's country of domicile.

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Amount of long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets, located in foreign countries in total in which the entity holds assets.

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Revenues from external customers attributed to the entity's country of domicile.

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Revenues from external customers attributed to all foreign countries in total from which the entity derives revenues.

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Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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