Summary of Significant Accounting Policies (Details 1) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Product sales, net	$ 18,295	$ 17,025	$ 38,148	$ 32,447
Company product sales
Accounts, Notes, Loans and Financing Receivable [Line Items]
Product sales, net	15,888	11,093	32,324	20,284
Contract manufacturing sales
Accounts, Notes, Loans and Financing Receivable [Line Items]
Product sales, net	$ 2,407	$ 5,932	$ 5,824	$ 12,163