COMMON STOCK WARRANTS (Details) (USD $)			0 Months Ended			12 Months Ended	0 Months Ended			1 Months Ended	3 Months Ended													0 Months Ended
	Sep. 30, 2012	Dec. 31, 2011	Mar. 08, 2006 Private Placement [Member]	Mar. 08, 2006 Common Stock [Member]	Jun. 28, 2010 Kapoor Warrants [Member]	Dec. 31, 2009 Kapoor Warrants [Member]	Jun. 28, 2010 Kapoor Warrants [Member] Minimum [Member]	Jun. 28, 2010 Kapoor Warrants [Member] Maximum [Member]	Mar. 08, 2006 PIPE Warrants [Member]	Dec. 31, 2010 PIPE Warrants [Member]	Mar. 31, 2012 PIPE Warrants [Member]	Mar. 31, 2011 PIPE Warrants [Member]	Mar. 08, 2011 PIPE Warrants [Member]	Jun. 28, 2010 Modification Warrants [Member] Kapoor Warrants [Member]	Apr. 13, 2009 Modification Warrants [Member] Kapoor Warrants [Member]		Jun. 28, 2010 Reimbursement Warrants [Member] Kapoor Warrants [Member]	Apr. 13, 2009 Reimbursement Warrants [Member] Kapoor Warrants [Member]		Jun. 28, 2010 Credit Facility Warrants [Member] Kapoor Warrants [Member]	Aug. 17, 2009 Credit Facility Warrants [Member] Kapoor Warrants [Member]		Aug. 16, 2009 Credit Facility Warrants [Member] Kapoor Warrants [Member]	Aug. 17, 2009 Subordinated Note Warrants [Member] Kapoor Warrants [Member]		Jun. 28, 2010 Subordinated Note Warrants [Member] Kapoor Warrants [Member]	Aug. 16, 2009 Subordinated Note Warrants [Member] Kapoor Warrants [Member]
Class of Warrant or Right [Line Items]
Expiration of warrant						5 years			5 years
Assumptions Used In Estimating Fair Value of Warrants [Abstract]
Expected Volatility (in hundredths)					79.70%
Expected Life (in years)							3 years 9 months 18 days	4 years 1 month 6 days
Risk-free interest rate (in hundredths)					1.80%
Dividend yield (in hundredths)					0.00%
Assumptions used in estimating fair value of warrants [Abstract]
Warrant identification															Modification Warrants	[1]		Reimbursement Warrants	[2]		Credit Facility Warrants	[3]		Subordinated Note Warrants	[4]
Warrants granted (in shares)					7,192,313				1,509,088						1,939,639			1,501,933			1,650,806			2,099,935
Exercise price (in dollars per share)									$ 5.40						$ 1.11			$ 1.11			$ 1.16			$ 1.16
Fair value					$ 5,222,000									$ 1,358,000			$ 1,051,000			$ 1,238,000						$ 1,575,000
Loan commitment															5,700,000						10,000,000		5,700,000	5,900,000			5,000,000
Fixed interest rate (in hundredths)															10.00%
Extension of maturity period of debt																								5 years
Shares issued (in shares)	95,314,602	94,936,282	4,311,669							9,195		365,157
Price per share (in dollars per share)			$ 4.50
Total price of private placement			19,402,000
Commissions and expenses			1,324,000
Proceeds from issuance of private placement			18,078,000	16,257,000					1,821,000
Cashless warrants exercised (in shares)										77,779	878,112
Warrants exercised (in shares)												319,863
Proceeds from warrants exercised												$ 1,727,000
Warrants outstanding (in shares)										1,431,309			233,334
Common stock shares issued based on cashless warrants exercised (in shares)												45,294

[1] The Modification Warrants were granted to EJ Funds on April 13, 2009 when we signed the Modification Agreement with EJ Funds related to modifications made to our Credit Agreement following its assignment from GE Capital to EJ Funds on March 31, 2009. Those modifications included resetting the maximum loan commitment to $5.7 million and setting the interest rate at a fixed 10% per annum, among others.

[2] The Reimbursement Warrants were granted to the Kapoor Trust on April 13, 2009 when we entered into a Reimbursement and Warrant Agreement (the “Reimbursement Agreement”) with EJ Funds and the Kapoor Trust pursuant to which the Kapoor Trust agreed to provide the L/C as security for our payment obligations to MBL under the MBL Letter Agreement and the MBL Settlement Agreement.

[3] The Credit Facility Warrants were granted to EJ Funds on August 17, 2009 in connection with the negotiated modification to the Credit Agreement increasing the total loan commitment from $5.7 million to $10.0 million.

[4] The Subordinated Note Warrants were issued to the Kapoor Trust on August 17, 2009 in connection with refinancing the Subordinated Note to extend its term for an additional five years and increase the principal from $5.0 million to $5.9 million to include accrued interest through August 17, 2009.