Business Segments (Schedule of Earnings from Business Segments) (Details) (USD $)	3 Months Ended				6 Months Ended
	Jun. 26, 2011		Jun. 27, 2010		Jun. 26, 2011		Jun. 27, 2010
Net revenues	$ 219,931,000		$ 208,176,000		$ 404,604,000		$ 395,632,000
Gross profit	85,492,000		90,764,000		155,866,000		171,315,000
Operating expenses, net	72,882,000	[1]	76,648,000	[2]	153,837,000	[3]	151,578,000	[4]
Interest (expense) income, net	(1,191,000)		(723,000)		(1,867,000)		(1,655,000)
Other gain (loss), net	(376,000)		(1,462,000)		(266,000)		(1,196,000)
Earnings (loss) before income taxes	11,043,000		11,931,000		(104,000)		16,886,000
Restructuring charges	1,500,000		1,200,000		3,100,000		1,600,000
Acquisition costs	2,017,000				2,203,000
Segment, Shrink Management Solutions [Member]
Net revenues	148,298,000		143,837,000		273,809,000		273,267,000
Gross profit	61,435,000		64,738,000		109,253,000		120,943,000
Segment, Apparel Labeling Solutions [Member]
Net revenues	53,857,000		48,185,000		95,217,000		88,408,000
Gross profit	15,574,000		18,313,000		29,480,000		33,709,000
Segment, Retail Merchandising Solutions [Member]
Net revenues	17,776,000		16,154,000		35,578,000		33,957,000
Gross profit	$ 8,483,000		$ 7,713,000		$ 17,133,000		$ 16,663,000

[1] Includes a $1.5 million restructuring charge and $2.0 million in acquisition costs.

[2] Includes a $1.2 million restructuring charge.

[3] Includes a $3.1 million restructuring charge and $2.2 million in acquisition costs.

[4] Includes a $1.6 million restructuring charge.