Note 11 - Business Unit Segment Information (Details) - USD ($) $ in Thousands		3 Months Ended
		Apr. 02, 2016		Mar. 28, 2015
Electronics [Member]
Net sales		$ 98,796		$ 99,380
Depreciation and amortization		5,372		5,798
Operating income		22,416		18,665
Automotive [Member]
Net sales		91,933		84,071
Depreciation and amortization		3,266		3,336
Operating income		17,491		11,171
Industrial [Member]
Net sales		28,669		26,862
Depreciation and amortization		1,451		1,284
Operating income		1,673		$ 2,730
Other Segments [Member]
Depreciation and amortization		937	[1]
Operating income	[2]	(9,152)		$ (3,018)
Net sales	[3]	219,398		210,313
Depreciation and amortization		11,026		10,418
Operating income		32,428		29,548
Interest expense		2,045		1,151
Foreign exchange loss		3,823		3,117
Other (income) expense, net		(517)		(1,126)
Income before income taxes		$ 27,077		$ 26,406

[1] Consists of intangible impairments. (See Note 13).

[2] Consists of internal restructuring costs ($1.4 million), acquisition related expenses ($6.2 million) and impairment and severance costs related to the planned shutdown of the company Roskilde, Denmark operations ($1.6 million) (see Note 13).

[3] Sales by country represent sale to customer or distributor locations.