CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Unaudited) - 6 months ended Jun. 30, 2015 - USD ($)	Preferred Stock	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Total
Beginning Balance, Shares at Dec. 31, 2014	3,589,949	12,629,695
Beginning Balance, Amount at Dec. 31, 2014	$ 35,899	$ 126,295	$ 137,292,157	$ (127,932,066)	$ 9,522,285
Exchange - Common Stock for Series F, Shares	1,500,000	(1,500,000)
Exchange - Common Stock for Series F, Amount	$ 15,000	$ (15,000)
Proceeds from issuance of Series F and warrants, Shares	1,666,667
Proceeds from issuance of Series F and warrants, Amount	$ 16,667		$ 5,497,333		$ 5,514,000
Capital contribution			59,325		59,325
Issuance of Series F pursuant to Reimbursement Agreement, Shares	548,177
Issuance of Series F pursuant to Reimbursement Agreement, Amount	$ 5,482		1,796,518		1,802,000
Share-based compensation, net of restricted stock cancellations, Shares		(1,420)
Share-based compensation, net of restricted stock cancellations, Amount		$ (14)	$ 610,985		610,971
Net loss				$ (19,198,310)	(19,146,310)
Ending Balance, Shares at Jun. 30, 2015	7,304,792	11,128,275
Ending balance, Amount at Jun. 30, 2015	$ 73,048	$ 111,281	$ 145,256,318	$ (147,130,376)	$ (1,689,729)