Note 4 - Goodwill and Other Intangible Assets (Detail) - Details of Other Intangible Assets and Related Future Amortization Expense (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 29, 2012		Dec. 31, 2011
Weighted Average Useful Life	12 years 109 days		12 years 146 days
Gross Carrying Value	$ 119,439		$ 109,821
Accumulated Amortization	70,627		65,238
Patents, Licenses and Software [Member]
Weighted Average Useful Life	11 years 292 days	[1]	11 years 328 days	[1]
Gross Carrying Value	43,939	[1]	41,909	[1]
Accumulated Amortization	32,795	[1]	31,156	[1]
Distribution Rights [Member]
Weighted Average Useful Life	13 years 219 days	[2]	13 years 292 days	[2]
Gross Carrying Value	47,206	[2]	44,738	[2]
Accumulated Amortization	28,242	[2]	25,431	[2]
Customer Lists, Trademarks and Tradenames [Member]
Weighted Average Useful Life	13 years 6 months	[3]	13 years 292 days	[3]
Gross Carrying Value	22,422	[3]	17,451	[3]
Accumulated Amortization	9,590	[3]	8,651	[3]
Trade Names [Member]
Gross Carrying Value	5,872	[4]	5,723	[4]
Accumulated Amortization		[4]		[4]

[1] Increase to gross carrying value for patents, licenses and software in 2012 is related to the preliminary Accel acquisition purchase price allocation discussed in Note 2. Other changes are primarily due to the impact of foreign currency translation adjustments.

[2] Increase to gross carrying value for distribution network in 2012 is related to the preliminary Accel acquisition purchase price discussed in Note 2. Other changes are primarily due to the impact of foreign currency translation adjustments.

[3] Increase to gross carrying value for customer lists, trademarks and tradenames in 2012 is related to the preliminary Accel and Terra Power acquisition purchase price allocation discussed in Note 2. Other changes are primarily due to the impact foreign currency translation adjustments.

[4] Tradenames with indefinite lives.