XML 34 R21.htm IDEA: XBRL DOCUMENT
v3.20.2

FAIR VALUE MEASUREMENT - The liability component was valued based on the Income Approach (Details) - 2021 Notes [Member] - Fair Value, Inputs, Level 3 [Member] | Sep. 30, 2020 $ / shares
--- | ---
Measurement Input, Share Price [Member] |
Debt Instrument, Measurement Input | 3.87
Measurement Input, Expected Term [Member] |
Debt Instrument, Measurement Input | 1.13
Measurement Input, Risk Free Interest Rate [Member] |
Debt Instrument, Measurement Input | 0.12
Measurement Input, Price Volatility [Member] |
Debt Instrument, Measurement Input | 100.20
Measurement Input, Yield [Member] |
Debt Instrument, Measurement Input | 12.34

X
- Definition Value of input used to measure debt instrument, including, but not limited to, convertible and non-convertible debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
Name: | us-gaap_DebtInstrumentMeasurementInput
Namespace Prefix: | us-gaap_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_DebtInstrumentAxis=plx_SevenPointFivePercentageConvertibleNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputSharePriceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputExpectedTermMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputRiskFreeInterestRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputPriceVolatilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=plx_MeasurementInputYieldMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |