2. Summary of significant accounting policies (Details Narrative) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Summary Of Significant Accounting Policies Details Narrative
Bad debt expense
Allowance for doubtful accounts	38,736	150,000
Advertising costs	$ 1,102,451	$ 992,616
Stock options excluded	2,145,000	2,345,000