Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2011	Dec. 31, 2010
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 746,439	$ 721,788
PREFERRED STOCK
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, authorized	50,000,000	50,000,000
Preferred stock, issued	0	0
COMMON STOCK
Common stock, par value	$ 0.001	$ 0.001
Common stock, authorized	200,000,000	200,000,000
Common stock, issued	169,133,450	139,383,450