3a. Accounts Receivable
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9 Months Ended | 12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||
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Sep. 30, 2012
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Dec. 31, 2011
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Receivables [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||
3a. Accounts Receivable |
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Accounts receivable consisted of the following at December 31, 2011 and 2010:
See also Note 14 for concentrations of accounts receivable.
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