For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13531-108611

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13537-108611

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

Name:	us-gaap_ConcentrationRiskPercentage1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Basis of Presentation and Summary of Significant Accounting Policies (Schedule of Concentration Risk) (Details)		3 Months Ended
	Mar. 31, 2020	Mar. 31, 2020
U.S. Net Product Sales
Concentration Risk [Line Items]
Concentration of credit risk		98.00%
Accounts Receivable
Concentration Risk [Line Items]
Concentration of credit risk	98.00%
Customer A \| U.S. Net Product Sales
Concentration Risk [Line Items]
Concentration of credit risk		38.00%
Customer A \| Accounts Receivable
Concentration Risk [Line Items]
Concentration of credit risk	32.00%
Customer B \| U.S. Net Product Sales
Concentration Risk [Line Items]
Concentration of credit risk		29.00%
Customer B \| Accounts Receivable
Concentration Risk [Line Items]
Concentration of credit risk	32.00%
Customer C \| U.S. Net Product Sales
Concentration Risk [Line Items]
Concentration of credit risk		31.00%
Customer C \| Accounts Receivable
Concentration Risk [Line Items]
Concentration of credit risk	34.00%