| **Acquisition of Molecular Insight Pharmaceuticals, Inc (Details) (USD $)**                        | 3 Months Ended | 6 Months Ended |                |                |        | 3 Months Ended | 6 Months Ended |           |
|----------------------------------------------------------------------------------------------------|----------------|----------------|----------------|----------------|--------|----------------|----------------|-----------|
||
| **Business Acquisition [Line Items]**                                                              |           |           |           |           |   |           |           |      |   |   |   |
| Original Shares Issued For Acquisition                                                             |           |           |           |           |   | 4,566,210      |           |      |   |   |   |
| Shares For Acquisition Held In Escrow                                                              |           |           |           |           |   | 500,000        |           |      |   |   |   |
| Shares For Acquisition Returned From Escrow                                                        |           |           |           |           |   | 93,847         |           |      |   |   |   |
| Maximum Milestone Payment Specified Commercial Events                                              | $ 23,000,000   |           | $ 23,000,000   |           |   |           |           |      |   |   |   |
| Maximum Milestone Payment For Achieving Sales Targets                                              | 70,000,000     |           | 70,000,000     |           |   |           |           |      |   |   |   |
| Business Acquisition, Cost of Acquired Entity, Transaction Costs                                   | 790,000        |           | 790,000        |           | 40,000 |           |           |      |   |   |   |
| Business Acquisition Contributed Revenue                                                           |           |           |           |           |   |           |           | 417,000   |   | 746,000 |   |
| Business Acquisition Increase Decrease Net Income Loss                                             |           |           |           |           |   |           |           | 3,184,000 |   | 6,359,000 |   |
| Equity issuance costs in connection with acquisition of subsidiary                                 |           |           | 45,000         | 0              |   |           |           |      |   |   |   |
| Progenics common stock consideration                                                               |           |           |           |           |   |           |           |      | 11,265,000 |   |   |
| Acquisition-related contingent consideration liability                                             | 15,900,000     | 0              | 15,900,000     | 0              |   |           | 0              |      |   |   | 15,900,000 |
| Business Entity Acquisition, Cost of Acquired Entity, Purchase Price                               | 11,265,000     | 0              | 11,265,000     | 0              |   |           |           |      |   |   | 27,165,000 |
| Cash acquired in acquisition of subsidiary                                                         |           |           |           |           |   |           |           |      |   |   | 1,888,000 |
| Business Acquisition, Purchase Price Allocation, Current Assets, Receivables                       |           |           |           |           |   |           |           |      |   |   | 56,000 |
| Business Acquisition, Purchase Price Allocation, Current Assets, Prepaid Expense and Other Assets  |           |           |           |           |   |           |           |      |   |   | 529,000 |
| Business Acquisition, Purchase Price Allocation, Property, Plant and Equipment                     |           |           |           |           |   |           |           |      |   |   | 249,000 |
| Business Acquisition, Purchase Price Allocation, Current Liabilities                               |           |           |           |           |   |           |           |      |   |   | (2,876,000) |
| Deferred tax liability - long term                                                                 | (12,683,000)   |           | (12,683,000)   |           |   |           | 0              |      |   |   | (12,683,000) |
| Business Entity Acquisition, Purchase Price Allocation, Assets Acquired (Liabilities Assumed), Net |           |           |           |           |   |           |           |      |   |   | (12,837,000) |
| Intangible assets                                                                                  | 32,300,000     |           | 32,300,000     |           |   |           | 0              |      |   |   | 32,300,000 |
| Business Acquisition Tangible And Intangible Assets Acquired Liabilities Assumed                   |           |           |           |           |   |           |           |      |   |   | 19,463,000 |
| Goodwill                                                                                           | 7,702,000      |           | 7,702,000      |           |   |           | 0              |      |   |   | 7,702,000 |
| Business Acquisition Transaction Costs Excluded From Pro Forma Information                         | 40,000         |           | 790,000        |           |   |           |           |      |   |   |   |
| Business Acquisition, Pro Forma Revenue                                                            | 1,801,000      | 1,836,000      | 4,032,000      | 4,148,000      |   |           |           |      |   |   |   |
| Business Acquisition, Pro Forma Net Income (Loss)                                                  | $ (12,223,000) | $ (17,740,000) | $ (24,685,000) | $ (38,011,000) |   |           |           |      |   |   |   |
| Business Acquisition Pro Forma Earnings Per Share Basic And Diluted                                | $ (0.24)       | $ (0.46)       | $ (0.49)       | $ (0.99)       |   |           |           |      |   |   |   |

| X                                                                                                                                                                                                                                                                                                                   |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of contributed revenue from a business acquisition during the reporting period.
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No definition available.
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| X                                                                                                                                                                                                                                                                                                                      |
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| - Definition
Increase (decrease) in net income (loss) provided from a business acquisition.
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| X                                                                                                                                                                                                                                                                       |
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| - Definition
Issuance costs related to a business acquisition
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| X                                                                                                                                                                                                                                                                                                                                                                                                   |
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| - Definition
The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.
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| X                                                                                                                                                                                                                                                                                                                                                                             |
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| - Definition
The total amount of tangible and intangible assets acquired less liabilities assumed in a business acquisition.
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| X                                                                                                                                                                                                                                                                                                                                              |
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| - Definition
The amount of transaction cost excluded from reported pro forma information reported.
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| X                                                                                                                                                                                                                                                                                                                                                                                         |
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| - Definition
Fair value, as of the acquisition date, of potential payments under the contingent consideration arrangement including cash and shares.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
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| - Definition
The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.
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No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The total purchase price of the acquired entity. This includes cash paid to equity interest holders of the acquired entity, fair value of debt and equity securities issued to equity holders of the acquired entity, and transaction costs paid to third parties to consummate the acquisition.
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No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                    |
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| - Definition
The amount of cash and cash equivalents acquired in a business combination.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
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| - Definition
The amount of acquisition cost of a business combination allocated to prepaid expenses and other current assets. Does not include amounts allocated to cash and cash equivalents, marketable securities, receivables, inventory, and assets not to be used.
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| - Definition
The amount of acquisition cost of a business combination allocated to receivables.
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| - Definition
The amount of acquisition cost of a business combination allocated to current liabilities of the acquired entity.
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| - Definition
Gross amount of acquisition cost of a business combination allocated to noncurrent deferred tax liabilities.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                        |
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| - Definition
Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.
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| - Definition
Amount of acquisition cost of a business combination allocated to assets, excluding financial assets and goodwill, lacking physical substance.
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| X                                                                                                                                                                                                                                                                                                                                                                                                    |
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| - Definition
The amount of acquisition cost of a business combination allocated to property, plant and equipment to be used in ongoing operations.
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| X                                                                                                                                                                                                                                                                                           |
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| - Definition
Maximum milestone payment for achieving sales targets.
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| - Definition
Maximum milestone payment for achieving certain commercial events.
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| X                                                                                                                                                                                                                                                                                                      |
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| - Definition
Original number of shares of equity interests issued or issuable to acquire entity.
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| X                                                                                                                                                                                                                                                                                      |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Number of shares held in escrow regarding relating to an acquisition.
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| - Definition
Number of shares returned from escrow regarding relating to an acquisition.
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| - Definition
Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
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| - Definition
The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.
+ References
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| - Definition
The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.
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| - Definition
Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.
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