Stock Based Compensation (Details) (USD $)	3 Months Ended		12 Months Ended	3 Months Ended			3 Months Ended	12 Months Ended		3 Months Ended	12 Months Ended		3 Months Ended		12 Months Ended	3 Months Ended
	Mar. 31, 2013 Stock options	Mar. 31, 2012 Stock options	Dec. 31, 2012 Stock options	Mar. 31, 2013 Restricted common stock	Mar. 31, 2012 Restricted common stock	Mar. 31, 2013 2005 Plan Stock options	Mar. 31, 2013 2005 Plan Stock options Non-employee directors item	Dec. 31, 2012 2005 Plan Stock options Non-employee directors	Dec. 31, 2011 2005 Plan Stock options Non-employee directors	Mar. 31, 2013 2005 Plan Stock options Chairman of the Board item	Dec. 31, 2012 2005 Plan Stock options Employees	Dec. 31, 2011 2005 Plan Stock options with performance-based vesting Employees	Mar. 31, 2013 2005 Plan Non-qualified stock options Low end of range	Mar. 31, 2013 2005 Plan Restricted common stock Garden State and JFS	Dec. 31, 2012 2005 Plan Restricted common stock Garden State and JFS	Mar. 31, 2013 Stock Purchase Plan	Mar. 31, 2012 Stock Purchase Plan
Stock Based Compensation
Exercise or purchase price relative to market values (as a percent)													85.00%			95.00%
Vesting period							3 years
Number of equal quarterly installments							4			4
Vesting period								1 year	1 year		3 years
Stock compensation expense	$ 12,000	$ 28,000		$ 56,000	$ 206,000									$ 56,250
Shares issued in exchange for certain investor relations and relating consulting services														416,668	2,083,338
Period for which shares are restricted from being sold from the date of issuance														6 months
Number of shares for further issuance														0
Number of shares of common stock available to be granted						674,156
Number of Options
Outstanding at the beginning of the period (in shares)	5,592,000
Granted (in shares)								112,500	112,500	45,000	355,000	565,000
Outstanding at the end of the period (in shares)	5,592,000		5,592,000
Exercisable at the end of the period (in shares)	5,042,000
Weighted Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 0.21
Outstanding at the end of the period (in dollars per share)	$ 0.21		$ 0.21
Exercisable at the end of the period (in dollars per share)	$ 0.21
Average Remaining Contractual Life (Years)
Outstanding at the end of a period, Average Remaining Contractual Life	3 years		3 years 2 months 16 days
Exercisable at the end of a period, Average Remaining Contractual Life	2 years 4 months 10 days
Aggregate Intrinsic Value
Outstanding at the end of a period, Aggregate Intrinsic Value	3,900,000		6,500,000
Exercisable at the end of a period, Aggregate Intrinsic Value	3,500,000
Total unrecognized compensation cost related to unvested options	$ 53,000
Weighted average period for recognition of unrecognized compensation cost	10 months 20 days
Period of intervals for purchase of shares of common stock by all eligible employees																6 months
Value of shares as a percent of gross compensation																10.00%
Shares reserved for future issuance																294,461
Activity in period (in shares)																0	0