Asset acquisition.

No definition available.

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- Definition

Milestone payment.

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- Definition

Notice period for agreement termination.

+ References

No definition available.

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- Definition

Percentage of royalty obligated to pay under agreement.

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No definition available.

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- Definition

Percentage of royalty on product sales.

+ References

No definition available.

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- Definition

Research and development milestone obligation to be paid.

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No definition available.

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- Definition

Variable Interest entity upfront payments.

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No definition available.

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

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- Definition

Fair value portion of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit.

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- Definition

Amount of Net Income (Loss) attributable to noncontrolling interest.

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-Publisher FASB
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-Topic 220
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- Definition

Portion of equity (net assets) in a variable interest entity (VIE) not attributable, directly or indirectly, to the parent entity. That is, this is the portion of equity in a VIE that is attributable to the noncontrolling interest (previously referred to as minority interest).

+ References

No definition available.

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- Definition

The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill.

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- Definition

Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, 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.

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Description of the terms of arrangements, giving consideration to both explicit arrangements and implicit variable interests, that could require the reporting entity to provide financial support (for example, liquidity arrangements and obligations to purchase assets) to the Variable Interest Entity (VIE), including events or circumstances that could expose the reporting entity to a loss.

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Asset Acquisition and License Agreements - Additional Information (Detail) - USD ($)	1 Months Ended				3 Months Ended		6 Months Ended
	Jun. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2015	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Asset Acquisition [Line Items]
Restricted cash (SRX Cardio)	$ 172,000	$ 178,000			$ 30,000	$ 172,000	$ 30,000	$ 172,000	$ 173,000
Net Income (loss) attributable to noncontrolling interest (SRX Cardio)					223,000	$ 240,000	(109,000)	195,000
Milestone payment on regulatory approval								$ 5,000,000
Millennium Pharmaceuticals, Inc \| United States
Asset Acquisition [Line Items]
Milestone payment on regulatory approval	$ 5,000,000
Millennium Pharmaceuticals, Inc \| Research and Development Expense
Asset Acquisition [Line Items]
Milestone payment		$ 2,000,000
Millennium Pharmaceuticals, Inc \| Cost of Sales \| United States
Asset Acquisition [Line Items]
Finite-lived intangible assets, amortization expenses					100,000		$ 300,000
Maximum \| Millennium Pharmaceuticals, Inc
Asset Acquisition [Line Items]
Percentage of royalty on product sales							8.00%
Minimum \| Millennium Pharmaceuticals, Inc
Asset Acquisition [Line Items]
Percentage of royalty on product sales							2.00%
SRX Cardio
Asset Acquisition [Line Items]
Variable interest entity, Upfront payment			$ 2,200,000	$ 500,000
Variable interest entity, Terms of arrangements							Accordingly, SRX Cardio is subject to consolidation and we have consolidated the financial statements of SRX Cardio by (a) eliminating all intercompany balances and transactions; and (b) allocating income or loss attributable to the noncontrolling interest in SRX Cardio to net income or loss attributable to noncontrolling interest in our consolidated statement of operations and reflecting noncontrolling interest on our consolidated balance sheet.
Fair value of indefinite lived intangible assets					3,200,000		$ 3,200,000
Noncontrolling interest in variable Interest entity					2,900,000		2,900,000
Restricted cash (SRX Cardio)					$ 30,000		$ 30,000		$ 173,000
SRX Cardio \| License Agreement
Asset Acquisition [Line Items]
Notice period for agreement termination			90 days
SRX Cardio \| License Agreement \| Maximum
Asset Acquisition [Line Items]
Research and development milestone payment obligation			$ 152,500,000
Percentage of royalties on worldwide net sales, obligated to pay			6.00%
SRX Cardio \| License Agreement \| Minimum
Asset Acquisition [Line Items]
Percentage of royalties on worldwide net sales, obligated to pay			2.00%