Royalty Monetization (Details Textual)	3 Months Ended		12 Months Ended				12 Months Ended
	Sep. 30, 2011 USD ($)	Mar. 31, 2011	Dec. 31, 2012 USD ($) Rate	Dec. 31, 2012 JPY (¥)	Dec. 31, 2011 USD ($)	Sep. 01, 2011 USD ($)	Dec. 31, 2012 JPR Royalty Sub LLC [Member] USD ($)	Sep. 01, 2012 JPR Royalty Sub LLC [Member] USD ($)	Mar. 09, 2011 JPR Royalty Sub LLC [Member] USD ($)	Dec. 31, 2012 PhaRMA Notes [Member] USD ($)	Mar. 09, 2011 PhaRMA Notes [Member] USD ($)
Royalty Monetization (Textual) [Abstract]
Proceeds from non-recourse notes									$ 30,000,000
Net proceeds from transaction							22,691,000
Transaction costs							4,309,000
Establishment costs							3,000,000
Interest Due			1,998,000		1,400,000	4,200,000		572,000
Aggregate principal amount											30,000,000
Aggregate fair value of PhaRMA Notes										30,000,000
Percentage of interest on notes secured											14.00%
Prorated interest			4,200,000		2,018,000
Interest Paid From Royalty Collected			3,628,000		760,000
Interest Paid From Interest Reserve Account			1,886,000		1,258,000
Royalty Monetization (Additional Textual) [Abstract]
Interest reserve account			1,742,000
Interest payments			132,000
Yen rate per dollar			100	100
Payment of premium			1,950,000
Change in fair value of foreign currency derivative			749,000		4,000,000
Termination fee			1,950,000
Currency Hedge Agreement			5,180,000		3,480,000
Termination maximum obligation			5,850,000
Pharma Notes Interest payment date of first payment		Sep. 01, 2011
Interest shortfall amount	572,000
Currency hedge premium payable period range one			2014	2014
Currency hedge premium payable period range two			2020	2020
Currency hedge agreement termination period range one			2016	2016
Currency hedge agreement termination period range two			2020	2020
Minimum currency value required for payment of premium on specified date				¥ 100