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Note 6 - Segment Reporting (Details) - Net Sales by Segment - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenue from External Customer [Line Items]
Net sales	$ 288,360	$ 362,609	$ 600,178	$ 704,617
Residential Power Products [Member]
Revenue from External Customer [Line Items]
Net sales	133,466	179,592	290,301	343,561
Commercial and Industrial Power Products [Member]
Revenue from External Customer [Line Items]
Net sales	134,580	163,467	268,343	320,837
Other Products and Services [Member]
Revenue from External Customer [Line Items]
Net sales	$ 20,314	$ 19,550	$ 41,534	$ 40,219

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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X

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 225



-SubTopic 10



-Section S99



-Paragraph 2



-Subparagraph (SX 210.5-03.1)



-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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