Funds Received From Sale Of Income Tax Net Operating Losses (Details) (USD $)	1 Months Ended	3 Months Ended				1 Months Ended		12 Months Ended
	Jan. 31, 2013	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012 Internal Revenue Service (IRS) [Member]	Dec. 31, 2012 Pennsylvania [Member]	Jan. 31, 2013 New Jersey [Member]	Dec. 31, 2012 New Jersey [Member]	Dec. 31, 2012 Minimum [Member] Internal Revenue Service (IRS) [Member]	Dec. 31, 2012 Minimum [Member] Pennsylvania [Member]	Dec. 31, 2012 Minimum [Member] New Jersey [Member]	Dec. 31, 2012 Maximum [Member] Internal Revenue Service (IRS) [Member]	Dec. 31, 2012 Maximum [Member] Pennsylvania [Member]	Dec. 31, 2012 Maximum [Member] New Jersey [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards				$ 119,000,000	$ 36,000,000		$ 17,000,000
Operating loss carryforwards, expiration dates								2013	2018	2030	2032	2032	2032
Operating loss carryforwards, amount of NOL carryforwards sold						8,500,000
Funds received from sale of income tax net operating losses	$ 685,000	$ 686,000	$ 1,328,000