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Note 4 - Royalty Monetization (Details Textual) |  |  | 3 Months Ended |  |
--- | --- | --- | --- | --- | ---
May 18, 2016 USD ($) | Mar. 09, 2011 USD ($) | Mar. 31, 2017 USD ($) | Mar. 31, 2016 USD ($) | Dec. 31, 2016 USD ($) | May 18, 2016 JPY (¥)
Currency Hedge Agreement [Member] |  |  |  |  |  |
Collateral Already Posted, Aggregate Fair Value |  |  | $ 0 |  | $ 0 |
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member] |  |  |  |  |  |
Derivative, Loss on Derivative |  |  | $ 1,543,000 | $ 2,753,000 |  |
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] | Japan, Yen | Currency Hedge Agreement [Member] |  |  |  |  |  |
Derivative, Forward Exchange Rate |  |  | 100 |  |  |
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% |  |  |  |
Percentage of Carrying Amount in Excess of Fair Value |  |  | 50.00% |  |  |
JPR Royalty Sub LLC [Member] | PhaRMA Notes Member] | Currency Hedge Agreement [Member] |  |  |  |  |  |
Maximum Amount of Collateral Required to Post |  |  | $ 7,800,000 |  |  |
Collateral Already Posted, Aggregate Fair Value |  |  | 0 |  | $ 0 |
JPR Royalty Sub LLC [Member] | PhaRMA Notes Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |
Notes Payable, Fair Value Disclosure |  |  | $ 30,000,000 |  |  |
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 |  |  |  |

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- Definition Represents interest reserve established as part of the royalty monetization. + References No definition available. + Details
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- Definition Represents maximum amount of collateral required to post. + References No definition available. + Details
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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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4H -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624258-113959 + Details
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