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Note 4 - Royalty Monetization (Details Textual)		3 Months Ended		9 Months Ended
	Mar. 09, 2011 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2014 JPY (¥)
JPR Royalty Sub LLC [Member] | PhaRMA Notes Member] | Currency Hedge Agreement [Member]
Collateral Already Posted, Aggregate Fair Value		$ 0		$ 0		$ 0
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments		(460,000)	$ 4,082,000	(793,000)	$ 732,000
Foreign Currency Transaction Gain (Loss), Realized				1,654,000
Maximum Amount of Collateral Required to Post		$ 9,750,000		$ 9,750,000
JPR Royalty Sub LLC [Member] | PhaRMA Notes Member]
Private Placement of Senior Secured Notes	$ 30,000,000
Debt Instrument, Interest Rate, Stated Percentage	14.00%
JPR Royalty Sub LLC [Member] | Royalty Monetization [Member]
Revenue Recognition Royalty and Milestone Revenue Recognized	$ 30,000,000
Revenue Recognition Royalty And Milestone Revenue Recognized, Net	22,691,000
Transaction Costs	4,309,000
Interest Reserve	3,000,000
PhaRMA Notes Member] | Currency Hedge Agreement [Member] | Japan, Yen [Member]
Derivative, Forward Exchange Rate		100		100
PhaRMA Notes Member] | Currency Hedge Agreement [Member]
Payments for (Proceeds from) Hedge, Investing Activities				$ 1,950,000
Required Foreign Currency Hedge Per Dollar | ¥							¥ 100
PhaRMA Notes Member] | JPR Royalty Sub LLC [Member]
Percentage of Carrying Amount in Excess of Fair Value		50.00%		50.00%
Currency Hedge Agreement [Member]
Collateral Already Posted, Aggregate Fair Value		$ 0		$ 0		$ 0
JPR Royalty Sub LLC [Member]
Revenue Recognition Royalty and Milestone Revenue Recognized	$ 30,000,000
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments		$ (352,000)	$ 4,082,000	$ 861,000	$ 732,000

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- Definition

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+ References

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- Definition

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- Definition

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+ References

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The Company is required to maintain a foreign currency hedge per dollar under the agreements governing the PhaRMA Notes.

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- Definition

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- Definition

The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Contractual rate at which a foreign currency can be purchased or sold.

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Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments.

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The cash outflow or inflow for a financial contract that meets the hedge criteria as either a cash flow hedge, fair value hedge, or hedge of a net investment in a foreign operation.

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