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- Definition

Percentage of voting equity interests acquired in the business combination.

+ References

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The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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The net result for the period of deducting operating expenses from operating revenues.

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No definition available.

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Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains.

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

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BUSINESS COMBINATION (Details) (USD $)	3 Months Ended
BUSINESS COMBINATION (Details) (USD $)	Mar. 31, 2013	Mar. 31, 2012	May 31, 2012
Additional information
Revenue	$ 42,899,000	$ 33,013,000
Operating loss	(9,656,000)	(6,471,000)
US Ecology Michigan
BUSINESS ACQUISITIONS
Percentage of outstanding shares acquired			100.00%
Pro forma combined:
Revenue		36,484,000
Net income		4,491,000
Earnings per share - Basic (in dollars per share)		$ 0.25
Earnings per share - Diluted (in dollars per share)		$ 0.25
Additional information
Revenue	2,900,000
Operating loss	$ 95,000