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Note 2. Summary of allowance for doubtful accounts (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Note 2. Summary Of Significant Accounting Policies Tables
Beginning balance	$ 125,987	$ 56,024
Bad Debt Expense	65,327	121,949
Write-offs	(74,284)	(51,986)
Ending Balance	$ 117,030	$ 125,987

Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected).

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