Note 3 - Goodwill and Intangible Assets (Details) - Other intangible assets by segment (USD $) In Thousands, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 29, 2013	Sep. 30, 2012	Sep. 30, 2012	Sep. 29, 2013	Sep. 30, 2012
Note 3 - Goodwill and Intangible Assets (Details) - Other intangible assets by segment [Line Items]
Balance – December 31, 2012				$ 19,219
Acquisitions				8,763
Amortization	(548)	(342)	(342)	(1,588)	(992)
Balance – September 29, 2013	26,394			26,394
Manufacturing [Member]
Note 3 - Goodwill and Intangible Assets (Details) - Other intangible assets by segment [Line Items]
Balance – December 31, 2012				18,242
Acquisitions				3,301
Amortization				(1,369)
Balance – September 29, 2013	20,174			20,174
Distribution [Member]
Note 3 - Goodwill and Intangible Assets (Details) - Other intangible assets by segment [Line Items]
Balance – December 31, 2012				977
Acquisitions				5,462
Amortization				(219)
Balance – September 29, 2013	$ 6,220			$ 6,220