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Minority Business Investment (Narrative) (Details) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013 Curepet, Inc. [Member]	Jun. 30, 2012 Curepet, Inc. [Member]
Schedule of Cost-method Investments [Line Items]
Cost method investment, ownership percentage				19.80%
Payments to acquire cost method investment				$ 2,000,000
Revenue	52,566,000	43,827,000	600,000
Due from related parties, current			$ 812,000

The aggregate amount of receivables to be collected from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth, at the financial statement date. which are usually due within one year (or one business cycle).

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