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Revenues (Details Textual) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 Segment	Jun. 30, 2011
Segment Reporting (Textual) [Abstract]
Number of Operating Segments			1
Sale to Non US Customers		$ 100,000		$ 100,000
Sale to Non US Customers	less than $0.1 million		less than $0.1 million
Received nonrefundable amount for transfer of intellectual property			700,000
Other Revenue			500,000
Remaining up-front payment received related to Acetadote			200,000
Receive payments of licensing agreement	700,000		700,000
Revenue Recognition, Milestone Method, Revenue Recognized			0	0
Acetadote [Member]
Revenue from External Customer [Line Items]
Receive payments of regulatory approval	1,100,000		1,100,000
Caldolor [Member]
Revenue from External Customer [Line Items]
Receive payments of regulatory approval	$ 1,100,000		$ 1,100,000

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Disclosure about revenues from external customers (1) attributed to the entity's country of domicile and (2) attributed to all foreign countries in total from which the entity derives revenues.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 131

-Paragraph 38

-Subparagraph a

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Revenues from the sale of other goods or rendering of other services, not elsewhere specified in the taxonomy; net of (reduced by) sales adjustments, returns, allowances, and discounts.

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