Summary of Significant Accounting Policies (Details 1) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Product sales, net	$ 19,853	$ 15,422
Company product sales
Accounts, Notes, Loans and Financing Receivable [Line Items]
Product sales, net	16,436	9,191
Contract manufacturing sales
Accounts, Notes, Loans and Financing Receivable [Line Items]
Product sales, net	$ 3,417	$ 6,231