Note 14 - Supplemental Condensed Consolidating Guarantor Financial Statements (Details) - Condensed Consolidating Statement of Operations (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jul. 01, 2012	Jun. 30, 2013	Jul. 01, 2012
Condensed Income Statements, Captions [Line Items]
Net sales	$ 243,483	$ 229,546	$ 453,852	$ 439,562
Cost of sales	157,250	150,844	296,367	290,342
Gross profit on sales	86,233	78,702	157,485	149,220
Selling, general and administrative expenses	64,430	56,219	121,688	110,120
Operating income (loss)	21,803	22,483	35,797	22,784
Interest/Other expense	5,905		12,470
Income before taxes on income and equity in income of subsidiaries	15,898	16,046	23,327	9,294
Income tax expense	4,933	5,509	5,365	4,854
Equity in income (loss) of subsidiaries	0		0
Net income (loss)	10,965	10,258	17,962	4,324
Consolidation, Eliminations [Member]
Condensed Income Statements, Captions [Line Items]
Net sales	(38,719)		(70,931)
Cost of sales	(38,719)		(70,931)
Gross profit on sales	0		0
Selling, general and administrative expenses	0		0
Operating income (loss)	0		0
Interest/Other expense	0		0
Income before taxes on income and equity in income of subsidiaries	0		0
Income tax expense	0		0
Equity in income (loss) of subsidiaries	(13,429)		(26,189)
Net income (loss)	(13,429)		(26,189)
Guarantor Subsidiaries [Member]
Condensed Income Statements, Captions [Line Items]
Net sales	165,446		296,154
Cost of sales	118,083		213,792
Gross profit on sales	47,363		82,362
Selling, general and administrative expenses	27,752		50,449
Operating income (loss)	19,611		31,913
Interest/Other expense	7,883		13,854
Income before taxes on income and equity in income of subsidiaries	11,728		18,059
Income tax expense	3,639		4,007
Equity in income (loss) of subsidiaries	0		0
Net income (loss)	8,089		14,052
Non-Guarantor Subsidiaries [Member]
Condensed Income Statements, Captions [Line Items]
Net sales	116,756		228,629
Cost of sales	77,886		153,506
Gross profit on sales	38,870		75,123
Selling, general and administrative expenses	29,142		55,234
Operating income (loss)	9,728		19,889
Interest/Other expense	1,985		4,930
Income before taxes on income and equity in income of subsidiaries	7,743		14,959
Income tax expense	2,403		2,822
Equity in income (loss) of subsidiaries	0		0
Net income (loss)	5,340		12,137
Parent Company [Member]
Condensed Income Statements, Captions [Line Items]
Net sales	0		0
Cost of sales	0		0
Gross profit on sales	0		0
Selling, general and administrative expenses	7,536		16,005
Operating income (loss)	(7,536)		(16,005)
Interest/Other expense	(3,963)		(6,314)
Income before taxes on income and equity in income of subsidiaries	(3,573)		(9,691)
Income tax expense	(1,109)		(1,464)
Equity in income (loss) of subsidiaries	13,429		26,189
Net income (loss)	$ 10,965		$ 17,962