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Accounts Receivable (Schedule of Accounts Receivable) (Details) (USD $)
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Dec. 31, 2012
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Dec. 31, 2011
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|---|---|---|
| Accounts Receivable Details | ||
| Accounts receivable | $ 275,206 | $ 262,694 |
| Less: Allowance for doubtful accounts | (35,535) | (47,595) |
| Accounts receivable, net | $ 239,671 | $ 215,099 |