| **Fair Value Measurements (Details) (USD $)In Thousands, unless otherwise specified**                                                                                                            | 3 Months Ended | 6 Months Ended | 12 Months Ended                                 |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------|----------------|-------------------------------------------------|
||
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                                                                 |           |           |                                            |   |   |
| Contingent consideration liability                                                                                                                                                               | $ 16,600       | $ 15,900       | $ 16,600                                        | $ 15,900 | $ 15,700 |
| Auction rate securities                                                                                                                                                                          | 2,208          |           | 2,208                                           |   | 2,208 |
| Maturity period of US government subsidized securities (in years)                                                                                                                                |           |           | 10 years                                        |   |   |
| Duration of securities subject to temporary impairment, minimum (in months)                                                                                                                      |           |           | 12 months                                       |   |   |
| Amount of temporary impairment                                                                                                                                                                   | 192            |           | 192                                             |   | 192 |
| Auction Rate Securities [Member]                                                                                                                                                                 |           |           |                                            |   |   |
| **Summary of activities in financial instruments with significant Level 3 inputs [Roll Forward]**                                                                                                |           |           |                                            |   |   |
| Balance at beginning of period                                                                                                                                                                   | 2,208          | 3,148          | 2,208                                           | 3,240 | 3,240 |
| Transfers into Level 3                                                                                                                                                                           | 0              | 0              | 0                                               | 0 |   |
| **Total realized/unrealized gains (losses)**                                                                                                                                                     |           |           |                                            |   |   |
| Included in net income (loss)                                                                                                                                                                    | 0              | 0              | 0                                               | 0 |   |
| Included in other comprehensive incomet (loss)                                                                                                                                                   | 0              | 60             | 0                                               | 68 |   |
| Settlements                                                                                                                                                                                      | 0              | (1,000)        | 0                                               | (1,100) |   |
| Balance at end of period                                                                                                                                                                         | 2,208          | 2,208          | 2,208                                           | 2,208 | 2,208 |
| Total amount of unrealized gains (losses) for the period included in other comprehensive loss attributable to the change in fair market value of related assets still held at the reporting date | 0              | 0              | 0                                               | 0 |   |
| **Fair Value Measurements, Quantitative Information**                                                                                                                                            |           |           |                                            |   |   |
| Fair Value                                                                                                                                                                                       | 2,208          |           | 2,208                                           |   | 2,208 |
| Valuation technique                                                                                                                                                                              |           |           | Discounted cash flow model                      |   | Discounted cash flow model |
| Auction Rate Securities [Member] | Minimum [Member]                                                                                                                                              |           |           |                                            |   |   |
| **Fair Value Measurements, Quantitative Information**                                                                                                                                            |           |           |                                            |   |   |
| Redemption period                                                                                                                                                                                |           |           | 5 years                                         |   | 5 years |
| Discount Rate                                                                                                                                                                                    |           |           | 0.25%                                           |   | 0.25% |
| Auction Rate Securities [Member] | Maximum [Member]                                                                                                                                              |           |           |                                            |   |   |
| **Fair Value Measurements, Quantitative Information**                                                                                                                                            |           |           |                                            |   |   |
| Redemption period                                                                                                                                                                                |           |           | 15 years                                        |   | 15 years |
| Discount Rate                                                                                                                                                                                    |           |           | 3.00%                                           |   | 3.00% |
| Auction Rate Securities [Member] | Weighted average [Member]                                                                                                                                     |           |           |                                            |   |   |
| **Fair Value Measurements, Quantitative Information**                                                                                                                                            |           |           |                                            |   |   |
| Redemption period                                                                                                                                                                                |           |           | 6 years                                         |   | 6 years |
| Discount Rate                                                                                                                                                                                    |           |           | 1.55%                                           |   | 1.55% |
| Azedra commercialization [Member]                                                                                                                                                                |           |           |                                            |   |   |
| **Fair Value Measurements, Quantitative Information**                                                                                                                                            |           |           |                                            |   |   |
| Period of milestone expected achievement                                                                                                                                                         |           |           | 2017                                            |   | 2017 |
| Fair Value                                                                                                                                                                                       | 2,400          |           | 2,400                                           |   | 2,300 |
| Valuation technique                                                                                                                                                                              |           |           | Probability adjusted discounted cash flow model |   | Probability adjusted discounted cash flow model |
| Discount Rate                                                                                                                                                                                    |           |           | 10.00%                                          |   | 10.00% |
| Probability of success                                                                                                                                                                           |           |           | 40.00%                                          |   | 40.00% |
| MIP - 1404 commercialization [Member]                                                                                                                                                            |           |           |                                            |   |   |
| **Fair Value Measurements, Quantitative Information**                                                                                                                                            |           |           |                                            |   |   |
| Period of milestone expected achievement                                                                                                                                                         |           |           | 2018                                            |   | 2018 |
| Fair Value                                                                                                                                                                                       | 2,100          |           | 2,100                                           |   | 2,000 |
| Valuation technique                                                                                                                                                                              |           |           | Probability adjusted discounted cash flow model |   | Probability adjusted discounted cash flow model |
| Discount Rate                                                                                                                                                                                    |           |           | 10.00%                                          |   | 10.00% |
| Probability of success                                                                                                                                                                           |           |           | 31.00%                                          |   | 31.00% |
| MIP-1095 commercialization [Member]                                                                                                                                                              |           |           |                                            |   |   |
| **Fair Value Measurements, Quantitative Information**                                                                                                                                            |           |           |                                            |   |   |
| Period of milestone expected achievement                                                                                                                                                         |           |           | 2021                                            |   | 2021 |
| Fair Value                                                                                                                                                                                       | 500            |           | 500                                             |   | 500 |
| Valuation technique                                                                                                                                                                              |           |           | Probability adjusted discounted cash flow model |   | Probability adjusted discounted cash flow model |
| Discount Rate                                                                                                                                                                                    |           |           | 10.00%                                          |   | 10.00% |
| Probability of success                                                                                                                                                                           |           |           | 19.00%                                          |   | 19.00% |
| Net sales targets [Member]                                                                                                                                                                       |           |           |                                            |   |   |
| **Fair Value Measurements, Quantitative Information**                                                                                                                                            |           |           |                                            |   |   |
| Fair Value                                                                                                                                                                                       | 11,600         |           | 11,600                                          |   | 10,900 |
| Valuation technique                                                                                                                                                                              |           |           | Monte-Carlo simulation                          |   | Monte-Carlo simulation |
| Discount Rate                                                                                                                                                                                    |           |           | 12.50%                                          |   | 12.50% |
| Net sales targets [Member] | Minimum [Member]                                                                                                                                                    |           |           |                                            |   |   |
| **Fair Value Measurements, Quantitative Information**                                                                                                                                            |           |           |                                            |   |   |
| Period of milestone expected achievement                                                                                                                                                         |           |           | 2018                                            |   | 2018 |
| Probability of success                                                                                                                                                                           |           |           | 19.00%                                          |   | 19.00% |
| Net sales targets [Member] | Maximum [Member]                                                                                                                                                    |           |           |                                            |   |   |
| **Fair Value Measurements, Quantitative Information**                                                                                                                                            |           |           |                                            |   |   |
| Period of milestone expected achievement                                                                                                                                                         |           |           | 2022                                            |   | 2022 |
| Probability of success                                                                                                                                                                           |           |           | 40.00%                                          |   | 40.00% |
| Net sales targets [Member] | Weighted average [Member]                                                                                                                                           |           |           |                                            |   |   |
| **Fair Value Measurements, Quantitative Information**                                                                                                                                            |           |           |                                            |   |   |
| Probability of success                                                                                                                                                                           |           |           | 32.80%                                          |   | 32.80% |
| Contingent Consideration Liability [Member]                                                                                                                                                      |           |           |                                            |   |   |
| **Summary of activities in financial instruments with significant Level 3 inputs [Roll Forward]**                                                                                                |           |           |                                            |   |   |
| Balance at beginning of period                                                                                                                                                                   | 16,200         | 15,900         | 15,700                                          | 0 | 0 |
| **Total realized/unrealized gains (losses)**                                                                                                                                                     |           |           |                                            |   |   |
| Fair value of contingent consideration - acquisition of Molecular Insight                                                                                                                        |           |           | 0                                               | 15,900 |   |
| Fair value change to contingent consideration included in net loss                                                                                                                               | 400            | 0              | 900                                             | 0 |   |
| Balance at end of period                                                                                                                                                                         | 16,600         | 15,900         | 16,600                                          | 15,900 |   |
| Changes in unrealized gains or losses for the period included in earnings (or changes in net assets) for liabilities held at the end of the reporting period                                     | 400            | 0              | 900                                             | 0 |   |
| U.S. Government Subsidized Securities [Member]                                                                                                                                                   |           |           |                                            |   |   |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                                                                 |           |           |                                            |   |   |
| Auction rate securities                                                                                                                                                                          | 2,208          |           | 2,208                                           |   |   |
| Recurring [Member]                                                                                                                                                                               |           |           |                                            |   |   |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                                                                 |           |           |                                            |   |   |
| Contingent consideration liability                                                                                                                                                               | 16,600         |           | 16,600                                          |   | 15,700 |
| Money Market Funds                                                                                                                                                                               | 80,385         |           | 80,385                                          |   | 60,364 |
| Auction rate securities                                                                                                                                                                          | 2,208          |           | 2,208                                           |   | 2,208 |
| Asset, total                                                                                                                                                                                     | 82,593         |           | 82,593                                          |   | 62,572 |
| Liability, total                                                                                                                                                                                 | 16,600         |           | 16,600                                          |   | 15,700 |
| Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]                                                                                                     |           |           |                                            |   |   |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                                                                 |           |           |                                            |   |   |
| Contingent consideration liability                                                                                                                                                               | 0              |           | 0                                               |   | 0 |
| Money Market Funds                                                                                                                                                                               | 80,385         |           | 80,385                                          |   | 60,364 |
| Auction rate securities                                                                                                                                                                          | 0              |           | 0                                               |   | 0 |
| Asset, total                                                                                                                                                                                     | 80,385         |           | 80,385                                          |   | 60,364 |
| Liability, total                                                                                                                                                                                 | 0              |           | 0                                               |   | 0 |
| Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]                                                                                                                      |           |           |                                            |   |   |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                                                                 |           |           |                                            |   |   |
| Contingent consideration liability                                                                                                                                                               | 0              |           | 0                                               |   | 0 |
| Money Market Funds                                                                                                                                                                               | 0              |           | 0                                               |   | 0 |
| Auction rate securities                                                                                                                                                                          | 0              |           | 0                                               |   | 0 |
| Asset, total                                                                                                                                                                                     | 0              |           | 0                                               |   | 0 |
| Liability, total                                                                                                                                                                                 | 0              |           | 0                                               |   | 0 |
| Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]                                                                                                                          |           |           |                                            |   |   |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                                                                 |           |           |                                            |   |   |
| Contingent consideration liability                                                                                                                                                               | 16,600         |           | 16,600                                          |   | 15,700 |
| Money Market Funds                                                                                                                                                                               | 0              |           | 0                                               |   | 0 |
| Auction rate securities                                                                                                                                                                          | 2,208          |           | 2,208                                           |   | 2,208 |
| Asset, total                                                                                                                                                                                     | 2,208          |           | 2,208                                           |   | 2,208 |
| Liability, total                                                                                                                                                                                 | $ 16,600       |           | $ 16,600                                        |   | $ 15,700 |

| X                                                                                                                                                                                                                                                                          |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of temporary impairment of auction rate securities
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| X                                                                                                                                                                                                                                                                                                                                                            |
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| - Definition
Fair value of potential payments under the contingent consideration arrangement including cash and shares.
+ References
No definition available.
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| - Definition
This item represents the amount of the total change in unrealized (holding) gains or losses for the period which are included in the statement of income (or changes in net assets) in other income. Such unrealized (holding) gains or losses relate to those assets still held at the reporting date for which fair value is measured on a recurring basis using significant unobservable inputs (Level 3).
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No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Represents period of maturity of the securities held by the entity which are subject to temporary impairment upon valuation.
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No definition available.
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| - Definition
This item represents the amount of the total change in unrealized (holding) gains or losses for the period which are included in the statement of income (or changes in net assets) in other income. Such unrealized (holding) gains or losses relate to those assets still held at the reporting date for which fair value is measured on a recurring basis using significant unobservable inputs (Level 3).
+ References
No definition available.
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| - Definition
Fair value adjustment to contingent consideration included in net loss
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Fair value of contingent consideration - acquisition of Molecular Insight
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No definition available.
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| X                                                                                                                                                                                                                                                                                                  |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Represents maturity period of securities held by the entity as on date of reporting.
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No definition available.
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| - Definition
Period of milestone expected achievement
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| X                                                                                                                                                                                                                                                                                                                                                                                                                          |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of securities that are debt instruments (corporate or municipal bonds) that typically have long-term nominal maturities for which the interest rate is reset through an auction process.
+ References
No definition available.
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.
+ References
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| - Definition
Period the instrument, asset or liability is expected to be outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.
+ References
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| - Definition
Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value.  For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.
+ References
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| - Definition
Percentage of likelihood a loan will not be repaid and instead default, used as an input to measure fair value.
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| - Definition
Description of the inputs and valuation technique(s) used to measure fair value.
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| - Definition
Amount of gain (loss) recognized in the income statement for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.
+ References
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| - Definition
Amount of gain (loss) recognized in other comprehensive income (loss) for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.
+ References
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| - Definition
Amount of settlement of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.
+ References
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of transfer of financial instrument classified as an asset into level 3 of the fair value hierarchy.
+ References
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Fair value of financial instrument classified as derivative asset (liability) after deduction of derivative liability (asset), measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.
+ References
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| - Definition
Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Available-for-Sale Securities -URI http://asc.fasb.org/extlink&oid=6505594Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Trading Securities -URI http://asc.fasb.org/extlink&oid=6526789Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=28360136&loc=d3e22054-111558Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Subparagraph a, f, g -Article 7Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 35 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=27723805&loc=d3e24584-111560
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| - Definition
Aggregation of the liabilities reported on the balance sheet measured at fair value on a recurring basis by the entity.
+ References
No definition available.
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