Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 720

-SubTopic 35

-Section 50

-Paragraph 1

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-Publisher AICPA

-Name Statement of Position (SOP)

-Number 93-7

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 18

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-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 21

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13537-108611

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

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-Section 50

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-Topic 825

-SubTopic 10

-Section 50

-Paragraph 20

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 28

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 12

-Paragraph 5

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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The percentage of LIFO (last in first out) inventory to total inventory as of the balance sheet date if other than 100 percent.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Note A - Summary of Significant Accounting Policies (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended			24 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011
Percentage of LIFO Inventory	73.00%	82.00%		82.00%
Depreciation (in Dollars)	$ 11.2	$ 10.5	$ 10.2
Concentration Risk, Percentage		10.00%		10.00%
Advertising Expense (in Dollars)	$ 3.5	$ 3.4	$ 3.2
Percentage Of Total Sales Benchmark [Member]
Concentration Risk, Percentage	10.00%
Building [Member] \| Minimum [Member]
Property, Plant and Equipment, Useful Life	20 years
Building [Member] \| Maximum [Member]
Property, Plant and Equipment, Useful Life	50 years
Machinery and Equipment [Member] \| Minimum [Member]
Property, Plant and Equipment, Useful Life	5 years
Machinery and Equipment [Member] \| Maximum [Member]
Property, Plant and Equipment, Useful Life	15 years
Software [Member] \| Minimum [Member]
Property, Plant and Equipment, Useful Life	3 years
Software [Member] \| Maximum [Member]
Property, Plant and Equipment, Useful Life	5 years
Minimum [Member] \| Technology And Drawings [Member]
Finite-Lived Intangible Asset, Useful Life	15 years
Minimum [Member] \| Customer Relationships [Member]
Finite-Lived Intangible Asset, Useful Life	9 years
Minimum [Member] \| Other Intangible Assets [Member]
Finite-Lived Intangible Asset, Useful Life	2 years
Maximum [Member] \| Technology And Drawings [Member]
Finite-Lived Intangible Asset, Useful Life	20 years
Maximum [Member] \| Customer Relationships [Member]
Finite-Lived Intangible Asset, Useful Life	10 years
Maximum [Member] \| Other Intangible Assets [Member]
Finite-Lived Intangible Asset, Useful Life	18 years