Redeemable Preferred Stock and Stock Option Agreement (Details Textual) (USD $)	6 Months Ended		9 Months Ended	12 Months Ended		3 Months Ended	12 Months Ended	3 Months Ended	1 Months Ended	12 Months Ended	3 Months Ended
	Jun. 30, 2013	Jun. 30, 2011	Sep. 30, 2010	Dec. 31, 2012	Dec. 31, 2011	Mar. 31, 2010 Employee Stock Option [Member]	Dec. 31, 2011 Employee Stock Option [Member]	Dec. 31, 2010 Warrant [Member]	Feb. 24, 2010 Series A Convertible Preferred Stock [Member]	Dec. 31, 2011 Series A Convertible Preferred Stock [Member]	Dec. 31, 2010 Series A Preferred Stock [Member]	Mar. 31, 2010 Series A Preferred Stock [Member]
Stock Redeemed or Called During Period, Value				$ 16,000,000
Preferred Stock, Par or Stated Value Per Share	$ 0.001			$ 0.001					$ 0.001
Preferred Stock, Redemption Amount	5,000,000			5,000,000	13,246,609
Preferred Stock, Shares Issued	500			500
Preferred Stock, Shares Outstanding	500			500
Proceeds from Issuance of Redeemable Convertible Preferred Stock		5,000,000
Preferred Stock, Redemption Date		Jul. 01, 2013
Preferred Stock, Including Additional Paid in Capital					2,442,686
Increase in Carrying Amount of Redeemable Preferred Stock					5,000,000					13,800,000
Derivative, Gain (Loss) on Derivative, Net					2,500,000
Derivative Instruments and Hedges, Liabilities					8,800,000
Preferred Stock, Stated Value Per Share	$ 10,000								$ 10,000
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Discount for Postvesting Restrictions							7.75%
Adjustments to Additional Paid in Capital, Increase in Carrying Amount of Redeemable Preferred Stock					553,391
Preferred Stock, Dividend Rate, Percentage									12.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate						2.40%	0.50%	0.66%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term						5 years	2 years	4 years 8 months 12 days
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum	1.70%						89.90%	76.06%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate							12.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Range of Dividends Used							7.19% to 7.75%.
Stock Issued During Period, Shares, Conversion of Convertible Securities											200	300
Warrants Issued During Period Conversion of Common Stock											8,000,000	12,000,000
Proceeds from Issuance of Warrants											2,000,000	3,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Market Price						$ 0.58		$ 0.26
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate						90.20%		89.40%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum								0.12%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum								2.01%
Adjustments to Additional Paid in Capital, Dividends in Excess of Retained Earnings			224,969
Common Stock, Par or Stated Value Per Share	$ 0.001			$ 0.001					$ 0.25
Common Stock, Shares Converted									20,000,000
Temporary Equity, Carrying Amount, Attributable to Parent									$ 500