Significant Customer and Geographic Information (Concentration Risk) (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 31, 2016	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Customer E [Member]
Concentration Risk [Line Items]
Royalty past due and future settlement payment						$ 3.1
Customer Concentration Risk [Member] | Customer A [Member] | Sales [Member]
Concentration Risk [Line Items]
Concentration risk, percentage		76.00%	39.00%	43.00%	34.00%
Customer Concentration Risk [Member] | Customer B [Member] | Sales [Member]
Concentration Risk [Line Items]
Concentration risk, percentage			40.00%	27.00%	26.00%
Customer Concentration Risk [Member] | Customer C (related party) [Member] | Sales [Member]
Concentration Risk [Line Items]
Concentration risk, percentage					13.00%
Customer Concentration Risk [Member] | Customer F [Member] | Sales [Member]
Concentration Risk [Line Items]
Concentration risk, percentage		11.00%
Credit Concentration Risk [Member] | Customer A [Member] | Accounts Receivable [Member]
Concentration Risk [Line Items]
Concentration risk, percentage				80.00%		12.00%
Credit Concentration Risk [Member] | Customer D [Member] | Accounts Receivable [Member]
Concentration Risk [Line Items]
Concentration risk, percentage						22.00%
Credit Concentration Risk [Member] | Customer E [Member] | Accounts Receivable [Member]
Concentration Risk [Line Items]
Concentration risk, percentage						40.00%
Credit Concentration Risk [Member] | Customer F [Member] | Accounts Receivable [Member]
Concentration Risk [Line Items]
Concentration risk, percentage				13.00%
Technology Transfer, Collaboration and License Agreement [Member] | Merck [Member]
Concentration Risk [Line Items]
Estimated proceeds		$ 8.0		$ 8.0
Subsequent Event [Member] | Technology Transfer, Collaboration and License Agreement [Member] | Merck [Member]
Concentration Risk [Line Items]
Milestone revenue	$ 8.0