Note 10 - Business Unit Segment Information - Business Unit Segment Information (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 26, 2015	Sep. 27, 2014	Sep. 26, 2015	Sep. 27, 2014
Electronics [Member]
Net Sales		$ 102,616	$ 107,754	$ 307,549	$ 313,726
Depreciation and amortization		5,811	5,582	17,384	16,482
Operating income		20,923	25,800	61,755	70,805
Automotive [Member]
Net Sales		81,475	80,639	251,464	245,083
Depreciation and amortization		3,244	3,435	9,883	10,609
Operating income		15,253	12,227	39,123	35,158
Electrical [Member]
Net Sales		31,419	29,215	88,831	86,566
Depreciation and amortization		1,260	1,414	3,839	4,096
Operating income		5,781	3,224	13,220	7,541
Other Segments [Member]
Operating income	[1]	(33,373)	(1,121)	(39,795)	(6,065)
Net Sales	[2]	215,510	217,608	647,844	645,375
Depreciation and amortization		10,315	10,431	31,106	31,187
Operating income		8,584	40,130	74,303	107,439
Interest expense		922	1,292	3,021	3,736
Foreign exchange (gain) loss		(3,549)	(101)	(1,724)	2,022
Other (income) expense, net		(1,430)	(2,261)	(3,758)	(4,893)
Income before income taxes		$ 12,641	$ 41,200	$ 76,764	$ 106,574

[1] For the three months ended September 26, 2015, "Other" consists of restructuring costs ($2.1 million), acquisition expenses ($0.3 million), pension settlement and wind-up costs ($30.9 million), and other ($0.1 million). For the nine months ended September 26, 2015, "Other" consist of restructuring costs ($6.8 million), acquisition expenses ($0.7 million), pension settlement and wind-up costs ($32.2 million) and other ($0.1 million).

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