Funds Received From Sale Of Income Tax Net Operating Losses (Details) (USD $)	1 Months Ended	3 Months Ended
	Jan. 31, 2015	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Operating Loss Carryforwards [Line Items]
Funds received from sale of income tax net operating losses	$ 1,374,000	$ 1,374,000	$ 1,126,000
Internal Revenue Service (IRS) [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards				151,000,000
Pennsylvania [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards				36,000,000
New Jersey [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards				28,000,000
Operating loss carryforwards, amount of NOL carryforwards sold	$ 14,291,000