CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Mar. 31, 2012	Dec. 31, 2011
Statement of Financial Position [Abstract]
Allowance for uncollectible accounts of accounts receivable	$ 25,039	$ 24,355
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, authorized	500,000	500,000
Preferred stock, issued
Preferred stock, outstanding
Common stock, par value	$ 0.001	$ 0.001
Common stock, authorized	100,000,000	100,000,000
Common stock, issued	47,148,639	46,830,504
Common stock, outstanding	47,148,639	46,830,504