Funds Received From Sale Of Income Tax Net Operating Losses (Details) - USD ($) $ in Thousands |
1 Months Ended | 3 Months Ended | 6 Months Ended | |||
---|---|---|---|---|---|---|
Jan. 31, 2015 |
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2015 |
Jun. 30, 2014 |
Dec. 31, 2014 |
|
Operating Loss Carryforwards [Line Items] | ||||||
Funds received from sale of income tax net operating losses | $ 1,374 | $ 0 | $ 0 | $ 1,374 | $ 1,126 | |
Internal Revenue Service (IRS) [Member] | ||||||
Operating Loss Carryforwards [Line Items] | ||||||
Operating loss carryforwards | $ 151,000 | |||||
Pennsylvania [Member] | ||||||
Operating Loss Carryforwards [Line Items] | ||||||
Operating loss carryforwards | 36,000 | |||||
New Jersey [Member] | ||||||
Operating Loss Carryforwards [Line Items] | ||||||
Operating loss carryforwards | $ 28,000 | |||||
Operating loss carryforwards, amount of NOL carryforwards sold | $ 14,291 |