The Company And Summary Of Significant Accounting Policies (Narrative) (Details) ¥ in Millions			3 Months Ended									12 Months Ended
	Jul. 14, 2014 CNY (¥)	Jul. 14, 2014 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Sep. 30, 2014 USD ($)	Jun. 30, 2014 USD ($)	Mar. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2015 USD ($) segment country site item customer shares	Dec. 31, 2014 USD ($) shares	Dec. 31, 2013 USD ($) shares
Basis of Presentation [Line Items]
Available-for-sale loss			$ 0									$ 0
Product sales			41,973,000	$ 41,986,000	$ 37,202,000	$ 33,168,000	$ 40,737,000	$ 33,621,000	$ 31,551,000	$ 26,064,000		154,329,000	$ 131,973,000	$ 99,414,000
Receivable reserve			594,000				998,000					594,000	998,000
Write-downs related to inventory													2,099,000
Allowance for loan losses			0				0					0	0
Foreign currency transaction losses												(400,000)
Promotion services			890,000	$ 894,000	$ 744,000	400,000	688,000	$ 666,000	962,000	$ 501,000		2,928,000	2,817,000	27,644,000
Product returns reserve amount												100,000	100,000
Sales tax and surcharge costs												3,400,000	2,500,000	3,500,000
Advertising expenses												4,100,000	2,600,000	1,100,000
Accrued interest related to tax positions			1,700,000				$ 1,500,000					1,700,000	1,500,000
Interest recognized as tax expense												$ 200,000	$ 300,000	$ 400,000
Shares excluded from the calculation of diluted net income (loss) per share | shares												1,151,537	3,541,071	3,378,063
Shares excluded from calculation of diluted net income per share due to performance conditions | shares												312,500	50,000	50,171
Number of operating segments | segment												2
ESPP [Member]
Basis of Presentation [Line Items]
Vesting period												3 months
Inventory [Member]
Basis of Presentation [Line Items]
Reclassification adjustment													$ 500,000
One Customer [Member]
Basis of Presentation [Line Items]
Allowance for doubtful accounts, collected													1,000,000
Additional Customer [Member]
Basis of Presentation [Line Items]
Write-down of accounts receivable			500,000
Bad debt reserve						$ 500,000
China [Member]
Basis of Presentation [Line Items]
Number of partnered products to which the company markets | item												7
Sinopharm [Member] | Accounts Receivable [Member]
Basis of Presentation [Line Items]
Concentration percentage												96.00%
Accounts receivable gross			38,300,000									$ 38,300,000
Number of customers | customer												1
Sanofi [Member]
Basis of Presentation [Line Items]
Write-down of accounts receivable											$ 2,600,000
Settlement between customer and company	¥ 22	$ 3,500,000
Promotion services									$ 200,000
Deferred revenue											$ 2,600,000			$ 2,600,000
ZADAXIN [Member]
Basis of Presentation [Line Items]
Number of countries in which product is approved | country												30
Number of suppliers of key components | site												2
ZADAXIN [Member] | Sales Revenue, Net [Member]
Basis of Presentation [Line Items]
Product sales												$ 146,100,000	$ 126,100,000	$ 96,300,000
Concentration percentage												95.00%	96.00%	97.00%
Aggrastat Product Sales [Member]
Basis of Presentation [Line Items]
Write-downs related to inventory												$ 0	$ 2,100,000	$ 0
Inventory			0									$ 0
Office Furniture and Fixtures [Member]
Basis of Presentation [Line Items]
Property and equipment, useful life												5 years
Office Equipment And Computer Software [Member]
Basis of Presentation [Line Items]
Property and equipment, useful life												3 years
Vehicle [Member]
Basis of Presentation [Line Items]
Property and equipment, useful life												4 years
Minimum [Member]
Basis of Presentation [Line Items]
Business tax												5.00%
Minimum [Member] | Stock Options And RSUs [Member]
Basis of Presentation [Line Items]
Vesting period												1 year
Maximum [Member]
Basis of Presentation [Line Items]
Business tax												6.42%
Maximum [Member] | Stock Options And RSUs [Member]
Basis of Presentation [Line Items]
Vesting period												4 years
SPIL China [Member] | One Customer [Member]
Basis of Presentation [Line Items]
Accounts receivable gross			3,000,000									$ 3,000,000
Write-down of accounts receivable												1,100,000
Settlement between customer and company												1,900,000
Allowance for doubtful accounts, collected												400,000
Bad debt reserve			$ 500,000									$ 500,000