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8. Business consolidation and restructuring expenses (Details) (USD $)	3 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2012
Restructuring and Related Activities [Abstract]
Restructuring and Related Cost, Incurred Cost	$ 23,000	$ (12)

- Definition

Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost.

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