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Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date.

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- Definition

The amount of identifiable intangible assets recognized as of the acquisition date.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

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-Subparagraph (c)

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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

-Publisher FASB

-Name Accounting Standards Codification

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Note 10 - Acquisitions (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2014
Note 10 - Acquisitions (Details) [Line Items]
Goodwill	$ 22,615,000us-gaap_Goodwill	$ 18,046,000us-gaap_Goodwill	$ 17,452,000us-gaap_Goodwill
Trademarks and Trade Names [Member] \| Bayou City Pump, Inc. [Member]
Note 10 - Acquisitions (Details) [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets				370,000
Customer Relationships [Member] \| Bayou City Pump, Inc. [Member]
Note 10 - Acquisitions (Details) [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles				4,100,000
Technology-Based Intangible Assets [Member] \| Bayou City Pump, Inc. [Member]
Note 10 - Acquisitions (Details) [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles				830,000
Bayou City Pump, Inc. [Member]
Note 10 - Acquisitions (Details) [Line Items]
Goodwill				$ 4,700,000