| **Fair Value Measurements (Details) - USD ($) $ in Thousands**                                                                                               | 3 Months Ended | 9 Months Ended | 12 Months Ended                                 |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------|----------------|-------------------------------------------------|
||
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                             |           |           |                                            |   |   |
| Contingent consideration liability                                                                                                                           | $ 18,100       |           | $ 18,100                                        |   | $ 17,200 |
| **Fair Value Measurements, Quantitative Information**                                                                                                        |           |           |                                            |   |   |
| Increase in the risk-free rate                                                                                                                               |           |           | 0.10%                                           |   |   |
| Increase in asset volatility                                                                                                                                 |           |           | 5.00%                                           |   |   |
| Recurring [Member]                                                                                                                                           |           |           |                                            |   |   |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                             |           |           |                                            |   |   |
| Contingent consideration liability                                                                                                                           | 18,100         |           | $ 18,100                                        |   | 17,200 |
| Money Market Funds                                                                                                                                           | 84,838         |           | 84,838                                          |   | 112,808 |
| Asset, total                                                                                                                                                 | 84,838         |           | 84,838                                          |   | 112,808 |
| Liability, total                                                                                                                                             | 18,100         |           | 18,100                                          |   | 17,200 |
| 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                                                                                                                                           | 84,838         |           | 84,838                                          |   | 112,808 |
| Asset, total                                                                                                                                                 | 84,838         |           | 84,838                                          |   | 112,808 |
| 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 |
| 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                                                                                                                           | 18,100         |           | 18,100                                          |   | 17,200 |
| Money Market Funds                                                                                                                                           | 0              |           | 0                                               |   | 0 |
| Asset, total                                                                                                                                                 | 0              |           | 0                                               |   | 0 |
| Liability, total                                                                                                                                             | 18,100         |           | $ 18,100                                        |   | $ 17,200 |
| Azedra commercialization [Member]                                                                                                                            |           |           |                                            |   |   |
| **Fair Value Measurements, Quantitative Information**                                                                                                        |           |           |                                            |   |   |
| Period of milestone expected achievement                                                                                                                     |           |           | 2018                                            |   | 2018 |
| Fair Value                                                                                                                                                   | 2,500          |           | $ 2,500                                         |   | $ 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                                                                                                                     |           |           | 2019                                            |   | 2019 |
| Fair Value                                                                                                                                                   | 4,100          |           | $ 4,100                                         |   | $ 3,800 |
| Valuation technique                                                                                                                                          |           |           | Probability adjusted discounted cash flow model |   | Probability adjusted discounted cash flow model |
| Discount Rate                                                                                                                                                |           |           | 10.00%                                          |   | 10.00% |
| Probability of success                                                                                                                                       |           |           | 59.00%                                          |   | 59.00% |
| MIP-1095 commercialization [Member]                                                                                                                          |           |           |                                            |   |   |
| **Fair Value Measurements, Quantitative Information**                                                                                                        |           |           |                                            |   |   |
| Period of milestone expected achievement                                                                                                                     |           |           | 2023                                            |   | 2023 |
| Fair Value                                                                                                                                                   | 500            |           | $ 500                                           |   | $ 400 |
| 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                                                                                                                                                   | 11,000         |           | $ 11,000                                        |   | $ 10,700 |
| Valuation technique                                                                                                                                          |           |           | Monte-Carlo simulation                          |   | Monte-Carlo simulation |
| Net sales targets [Member] | Minimum [Member]                                                                                                                |           |           |                                            |   |   |
| **Fair Value Measurements, Quantitative Information**                                                                                                        |           |           |                                            |   |   |
| Period of milestone expected achievement                                                                                                                     |           |           | 2019                                            |   | 2019 |
| Discount Rate                                                                                                                                                |           |           | 3.50%                                           |   | 3.50% |
| Probability of success                                                                                                                                       |           |           | 19.00%                                          |   | 19.00% |
| Net sales targets [Member] | Maximum [Member]                                                                                                                |           |           |                                            |   |   |
| **Fair Value Measurements, Quantitative Information**                                                                                                        |           |           |                                            |   |   |
| Period of milestone expected achievement                                                                                                                     |           |           | 2025                                            |   | 2026 |
| Discount Rate                                                                                                                                                |           |           | 12.00%                                          |   | 12.00% |
| Probability of success                                                                                                                                       |           |           | 59.00%                                          |   | 59.00% |
| Net sales targets [Member] | Weighted average [Member]                                                                                                       |           |           |                                            |   |   |
| **Fair Value Measurements, Quantitative Information**                                                                                                        |           |           |                                            |   |   |
| Probability of success                                                                                                                                       |           |           | 37.40%                                          |   | 37.40% |
| Contingent Consideration Liability [Member]                                                                                                                  |           |           |                                            |   |   |
| **Summary of activities in financial instruments with significant Level 3 inputs [Roll Forward]**                                                            |           |           |                                            |   |   |
| Balance at beginning of period                                                                                                                               | 18,300         | $ 16,600       | $ 17,200                                        | $ 15,700 | $ 15,700 |
| **Total realized/unrealized gains (losses)**                                                                                                                 |           |           |                                            |   |   |
| Fair value change to contingent consideration included in net (loss) income                                                                                  | (200)          | 500            | 900                                             | 1,400 |   |
| Balance at end of period                                                                                                                                     | 18,100         | 17,100         | 18,100                                          | 17,100 | $ 17,200 |
| 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 | $ (200)        | $ 500          | $ 900                                           | $ 1,400 |   |

| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - 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
+ References
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| - References
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| X                                                                                                                                                                                                                                                             |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Period of milestone expected achievement
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled beyond one year or the normal operating cycle, if longer.
+ References
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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
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
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No definition available.
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| - Definition
A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price.
+ References
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| - Definition
Risk-free interest rate assumption used in valuing an instrument.
+ References
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| - 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.
+ 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
Description of the inputs and valuation technique(s) used to measure fair value.
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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.
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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
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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.
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No definition available.
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