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Accounts Receivable (Details) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Balance, beginning of period $ 169,191 $ 119,295
Provision for (recoveries of) doubtful accounts (28,866) 49,896
Write-offs (write-backs) (18,742) 0
Balance, end of period $ 121,583 $ 169,191