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The Business Financial Information & Liquidity (Details) $ / shares in Units, $ in Thousands |  |  | 1 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jul. 28, 2016 $ / shares | Mar. 11, 2016 USD ($) | Jun. 30, 2016 USD ($) $ / shares | Mar. 31, 2016 USD ($) | Feb. 29, 2016 $ / shares | Mar. 10, 2016 $ / shares | Dec. 31, 2015 $ / 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 | $ 7.05 |
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 |  |
Common Stock, Par Value | $ / shares |  |  | $ 0.001 |  |  |  | $ 0.001
Hitachi Chemical Co., LTD [Member] |  |  |  |  |  |  |
Research and Development Arrangement, Contract to Perform for Others [Line Items] |  |  |  |  |  |  |
Proceeds From Licensing Agreements |  | $ 25,000 | $ 1,250 | $ 22,500 |  |  |
Unrecorded Unconditional Purchase Obligation, Maximum Quantity |  | 15,000 |  |  |  |  |
PCT Allendale, LLC [Member] | Hitachi Chemical Co., LTD [Member] |  |  |  |  |  |  |
Research and Development Arrangement, Contract to Perform for Others [Line Items] |  |  |  |  |  |  |
Proceeds From Licensing Agreements |  | $ 10,000 |  |  |  |  |
Oxford Finance LLC [Member] |  |  |  |  |  |  |
Research and Development Arrangement, Contract to Perform for Others [Line Items] |  |  |  |  |  |  |
Repayments of Debt |  | $ 7,000 |  |  |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |
Research and Development Arrangement, Contract to Perform for Others [Line Items] |  |  |  |  |  |  |
Reverse Stock Split, Conversion Ratio | 0.1 |  |  |  |  |  |
Common Stock, Par Value | $ / shares | $ 0.001 |  |  |  |  |  |

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