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The Business Financial Information & Liquidity (Details) $ in Millions |  | 1 Months Ended |
--- | --- | --- | ---
Mar. 11, 2016 USD ($) | Mar. 31, 2016 USD ($) | Feb. 29, 2016 $ / shares | Mar. 10, 2016 $ / shares
Research and Development Arrangement, Contract to Perform for Others [Line Items] |  |  |  |
Number Of Consecutive Days, Share Price Under One Dollar |  |  | 30 days |
Share Price | $ / shares |  |  | $ 1.00 | $ 0.705
Number Of Days After The Initial Period To Meet Consecutive Trading Day Requirement |  |  | 180 days |
Number Of Consecutive Trading Days, Required Above One Dollar |  |  | 10 days |
Period In Which To Meet Consecutive Trading Day Threshold |  |  | 180 days |
Hitachi Chemical Co., LTD [Member] |  |  |  |
Research and Development Arrangement, Contract to Perform for Others [Line Items] |  |  |  |
Proceeds From Licensing Agreements | $ 25.0 | $ 22.5 |  |
Unrecorded Unconditional Purchase Obligation, Maximum Quantity | 15.0 |  |  |
PCT Allendale, LLC [Member] | Hitachi Chemical Co., LTD [Member] |  |  |  |
Research and Development Arrangement, Contract to Perform for Others [Line Items] |  |  |  |
Proceeds From Licensing Agreements | $ 10.0 |  |  |
Oxford Finance LLC [Member] |  |  |  |
Research and Development Arrangement, Contract to Perform for Others [Line Items] |  |  |  |
Repayments of Debt | $ 7.0 |  |  |

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