CONSOLIDATED STATEMENT OF CHANGES IN REDEEMABLE CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY (DEFICIT) (USD $)	Total USD ($)	Series B-1 12% redeemable convertible preferred stock USD ($)	Series B-2 12% redeemable convertible preferred stock USD ($)	Series C super dividend convertible preferred stock USD ($)	Series A 12% convertible preferred stock USD ($)	Common Stock USD ($)	Common Stock Series A Preferred Stock	Common Stock Series B One Preferred Stock	Common Stock Series B Two Preferred Stock	Common Stock Series C Preferred Stock	Additional Paid-In Capital USD ($)	Additional Paid-In Capital Series A Preferred Stock USD ($)	Additional Paid-In Capital Series B One Preferred Stock USD ($)	Additional Paid-In Capital Series B Two Preferred Stock USD ($)	Additional Paid-In Capital Series C Preferred Stock USD ($)	Deficit Accumulated During the Development Stage USD ($)	Deficit Accumulated During the Development Stage Series A Preferred Stock USD ($)	Deficit Accumulated During the Development Stage Series B One Preferred Stock USD ($)	Deficit Accumulated During the Development Stage Series B Two Preferred Stock USD ($)	Deficit Accumulated During the Development Stage Series C Preferred Stock USD ($)
Beginning Balance at Dec. 31, 2011	$ (2,125,000)	$ 1,681,000	$ 2,687,000	$ 2,154,000	$ 632,000	$ 13,000					$ 66,367,000					$ (69,137,000)
Beginning Balance (in shares) at Dec. 31, 2011		900,000	2,100,000	220	1,562,500	12,919,538
Accretion of Series B redeemable convertible preferred stock	(86,000)	8,000	78,000													(86,000)
Accretion of beneficial conversion feature for Series B-2	(28,000)		28,000													(28,000)
Issuance of common stock and warrants, net of issuance costs of $1,597,000 (in shares)						2,666,722
Issuance of common stock and warrants, net of issuance costs of $1,597,000	10,403,000					3,000					10,400,000
Issuance of shares related to reverse split of common stock						3,324
Convertible preferred stock dividend (in shares)							15,625	38,925	90,825	13,380
Convertible preferred stock dividend												68,000	103,000	239,000	54,000		(68,000)	(103,000)	(239,000)	(54,000)
Issuance of common stock to a consultant (in shares)						7,000
Issuance of common stock to a consultant	16,000										16,000
Issuance of common stock upon exercise of warrants						12,177
Issuance of common stock upon exercise of options	51,830					51,830
Stock-based compensation expense	1,336,000										1,336,000
Net loss	(4,610,000)															(4,610,000)
Ending Balance at Jun. 30, 2012	$ 4,906,000	$ 1,689,000	$ 2,793,000	$ 2,154,000	$ 632,000	$ 16,000					$ 78,583,000					$ (74,325,000)
Ending Balance (in shares) at Jun. 30, 2012		900,000	2,100,000	220	1,562,500	15,819,346