Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2011	Dec. 31, 2010
Accounts receivable, net
Allowance for doubtful accounts	$ 29,361	$ 30,357
Common stock
Common stock par value	$ 0.001	$ 0.001
Common stock shares authorized	50,000,000	50,000,000
Common stock shares issued	22,228,834	22,228,834
Common stock shares outstanding	22,228,834	22,228,834