Collaboration and Hitachi License Agreement - 2017 Hitachi Transaction (Details) - USD ($) $ in Thousands		1 Months Ended	3 Months Ended	12 Months Ended
	May 18, 2017	Mar. 31, 2017	Sep. 30, 2017	May 18, 2018
PCT Segment [Member] | Discontinued Operations [Member]
Business Acquisition [Line Items]
Subsidiary, Ownership Interest by Parent	80.10%
Transaction and retention costs	$ 6,919
Payments to Employees			$ 4,300
Payment for Retention Agreement in Connection with Sale, First Retention Payment, Percent			50.00%
Payment for Retention Agreement in Connection with Sale, Second Retention Payment, Percent			50.00%
Hitachi Chemical Co., LTD [Member] | PCT Segment [Member] | Discontinued Operations [Member]
Business Acquisition [Line Items]
Purchase Agreement, Additional Consideration	4,400
Purchase Agreement, Potential Future Milestone Payment	5,000
Cumulative Revenue Threshold for Receiving Milestone Payment	125,000
Proceeds From Licensing Agreements, Initial Payment		$ 5,000
Proceeds From Licensing Agreements, Closing Payments	65,000
Proceeds From Licensing Agreements, Escrow Amount	5,000
Hitachi Chemical Co., LTD [Member] | PCT Allendale, LLC [Member] | PCT Segment [Member] | Discontinued Operations [Member]
Business Acquisition [Line Items]
Purchase Agreement, Aggregate Purchase Price	75,000
Director [Member] | Robert A. Preti [Member]
Business Acquisition [Line Items]
Related Party Transaction, Payment for Retention Agreement in Connection with Sale, First Retention Payment	$ 1,900
Scenario, Forecast [Member] | Director [Member] | Robert A. Preti [Member]
Business Acquisition [Line Items]
Related Party Transaction, Payment for Retention Agreement in Connection with Sale, Second Retention Payment				$ 1,900
Related Party Transaction, Payment for Retention Agreement in Connection with Sale, Third Retention Payment, Percentage of Milestone Payment				5.00%