CONSOLIDATED BALANCE SHEETS [Parenthetical] (USD $)	Jun. 30, 2013	Dec. 31, 2012
Allowance for uncollectible amount (in dollars)	$ 173,832	$ 33,745
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, shares authorized	15,000,000	15,000,000
Preferred stock, shares issued	26,968	0
Preferred stock, shares outstanding	26,968	0
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	28,207,184	23,020,518
Common stock, shares outstanding	28,207,184	23,020,518