Correction of an Error (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Operating loss	$ (7,657,266)	$ (5,681,853)
Net loss	(7,757,079)	(5,702,422)
Net loss per share - basic and diluted	$ (0.29)	$ (0.3)
Accounts receivable, net of allowance for doubtful accounts	5,373,023	4,047,059
Total current assets	14,990,613	6,738,705
Accumulated deficit	(57,276,664)	(49,519,585)
Restatement Adjustment [Member] | Estimating Accounts Receivable Allowance for Doubtful Accounts [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Operating loss		679,183
Net loss		679,183
Net loss per share - basic and diluted		$ 0.04
Accounts receivable, net of allowance for doubtful accounts		(679,183)
Total current assets		(679,183)
Accumulated deficit		$ 679,183