Derivative Instruments - Stock Warrants (Details) - Fair Value, Measurements, Recurring - Warrants - USD ($) $ in Thousands	Nov. 28, 2016	Sep. 30, 2016
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Stock warrant		$ 45
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Stock warrant		45
BioCision, LLC | Significant Unobservable Inputs (Level 3) | Maximum
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Stock warrant	$ 100	$ 100