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Collaboration and License Agreement (Details) - USD ($) |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Mar. 16, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Mar. 31, 2016 | Sep. 30, 2016 | Mar. 11, 2016
Business Acquisition [Line Items] |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  |  |  |  |  | 19.90%
Subsidiary, Ownership Interest by Parent | 80.10% |  |  |  |  | 80.10%
Proceeds From Licensing Agreements, Milestone Payments |  |  | $ (5,000,000) | $ 0 |  |
Hitachi Chemical Co., LTD [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  |  |  |  |  | 21.00%
Recorded Unconditional Purchase Obligation |  |  |  | $ 20,500,000 |  | $ 19,400,000
Unrecorded Unconditional Purchase Obligation, Maximum Quantity |  |  |  |  |  | 15,000,000
Proceeds From Licensing Agreements, Initial Payment | $ 5,000,000 |  | 5,000,000 |  |  |
Proceeds From Licensing Agreements, Milestone Payments | 5,000,000 |  | 5,000,000 |  |  |
Cumulative Revenue Threshold for Receiving Milestone Payment |  |  | 125,000,000 |  |  |
PCT Allendale, LLC [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Contract Receivable |  |  |  |  |  | $ 5,600,000
PCT Allendale, LLC [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Purchase Obligation |  |  |  |  |  | $ 4,400,000
PCT Allendale, LLC [Member] | Hitachi Chemical Co., LTD [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Proceeds From Licensing Agreements | 75,000,000 |  | $ 75,000,000 |  |  |
Cumulative Revenue Threshold for Receiving Milestone Payment | $ 125,000,000 |  |  |  |  |
Minimum [Member] | PCT Allendale, LLC [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Length of Contract for Royalty Payments from Revenue Generated in Asia |  |  |  |  | 10 years |
Scenario, Forecast [Member] | Hitachi Chemical Co., LTD [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Proceeds From Licensing Agreements |  | $ 5,000,000 |  |  |  |
Proceeds From Licensing Agreements, Closing Payments |  | 65,000,000 |  |  |  |
Director [Member] | Scenario, Forecast [Member] | Robert A. Preti [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Related Party Transaction, Payment for Retention Agreement in Connection with Sale, First Retention Payment |  | 1,375,000 |  |  |  |
Related Party Transaction, Payment for Retention Agreement in Connection with Sale, Second Retention Payment |  | $ 1,375,000 |  |  |  |
Related Party Transaction, Payment for Retention Agreement in Connection with Sale, Third Retention Payment, Percentage of Milestone Payment |  | 5.00% |  |  |  |

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