Segment Information (Sales And Long-Lived Assets By Geographic Location) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 29, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Oct. 01, 2011	Jul. 02, 2011	Apr. 02, 2011	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Consolidated Net Sales	$ 46,359	$ 43,396	$ 48,807	$ 41,946	$ 43,278	$ 43,809	$ 47,768	$ 39,782	$ 180,508	$ 174,637	$ 158,312
Total Consolidated Long-Lived Assets	38,261				37,987				38,261	37,987	39,819
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Consolidated Net Sales									112,658	101,410	90,322
Total Consolidated Long-Lived Assets	32,110				30,878				32,110	30,878	31,786
Europe, Middle East And Africa [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Consolidated Net Sales									29,246	36,230	34,631
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Consolidated Net Sales									25,117	24,187	22,438
International Americas [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Consolidated Net Sales									13,487	12,810	10,921
Foreign Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Consolidated Long-Lived Assets	$ 6,151				$ 7,109				$ 6,151	$ 7,109	$ 8,033