XML 58 R48.htm IDEA: XBRL DOCUMENT
v3.23.3

STOCKHOLDERS' EQUITY (Schedule of Warrants) (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Jun. 30, 2023
Class of Stock [Line Items] |  |  |  |  |
Underlying shares (in shares) | 481,860 |  | 481,860 |  |
Warrants expired | 5,593 |  | 13,012 |  |
Common Stock [Member] | Maximum [Member] |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Intrinsic value of warrants exercised in period |  | $ 20 |  | $ 20 |
Warrants Not Assumed In Merger, Expiring November 2023 [Member] |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Underlying shares (in shares) | 3,789 |  | 3,789 |  |
Exercise price (in dollars per share) | $ 108.00 |  | $ 108.00 |  |
Warrants Not Assumed In Merger, Expiring December 2023 [Member] |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Underlying shares (in shares) | 2,564 |  | 2,564 |  |
Exercise price (in dollars per share) | $ 108.00 |  | $ 108.00 |  |
Warrants Not Assumed In Merger, Expiring April 2024 [Member] |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Underlying shares (in shares) | 7,374 |  | 7,374 |  |
Exercise price (in dollars per share) | $ 108.00 |  | $ 108.00 |  |
Warrants Not Assumed In Merger, Expiring May 2024 [Member] |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Underlying shares (in shares) | 7,717 |  | 7,717 |  |
Exercise price (in dollars per share) | $ 191.20 |  | $ 191.20 |  |
Pre-Funded Warrants |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Underlying shares (in shares) | 15,972 |  | 15,972 |  | 15,972
Exercise price (in dollars per share) | $ 0.02 |  | $ 0.02 |  | $ 0.02
RDO Common Warrants |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Underlying shares (in shares) | 444,444 |  | 444,444 |  | 444,444
Exercise price (in dollars per share) | $ 12.60 |  | $ 12.60 |  | $ 12.60

X
- Definition Number of warrants or rights expired. + References No definition available. + Details
Name: | prpo_ClassOfWarrantOrRightExpired
Namespace Prefix: | prpo_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ClassOfStockLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21475-112644 + Details
Name: | us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21475-112644 + Details
Name: | us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_CommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=prpo_WarrantsNotAssumedInMergerExpiringNovember2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=prpo_WarrantsNotAssumedInMergerExpiringDecember2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=prpo_WarrantsNotAssumedInMergerExpiringApril2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=prpo_WarrantsNotAssumedInMergerExpiringMay2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=prpo_PreFundedWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=prpo_RdoCommonWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |