Summary of Significant Accounting Policies (Restated) (Details 1) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Product sales, net	$ 12,830	$ 15,709	$ 50,978	$ 48,156
Company product sales
Accounts, Notes, Loans and Financing Receivable [Line Items]
Product sales, net	10,947	13,901	43,271	34,185
Contract manufacturing sales
Accounts, Notes, Loans and Financing Receivable [Line Items]
Product sales, net	$ 1,883	$ 1,808	$ 7,707	$ 13,971