XML 72 R62.htm IDEA: XBRL DOCUMENT
v3.23.1

SUBSEQUENT EVENTS (Details) - USD ($) |  |  | 1 Months Ended | 3 Months Ended | 4 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Apr. 14, 2023 | Apr. 02, 2021 | May 12, 2023 | May 12, 2023 | Mar. 31, 2023 | May 12, 2023 | Dec. 31, 2022 | Apr. 13, 2020
Subsequent Event [Line Items] |  |  |  |  |  |  |  |
Common stock, par value |  |  |  |  | $ 0.01 |  | $ 0.01 |
Proceeds from Issuance of Common Stock |  |  |  |  | $ 438,000 |  |  |
At The Market Offering Agreement |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |
Proceeds from Issuance of Common Stock |  |  |  |  | $ 400,000 |  |  |
Shares issued (in shares) |  |  |  |  | 543,826 |  |  |
AGP | At The Market Offering Agreement |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |
Common stock, par value |  | $ 0.01 |  |  |  |  |  |
Percentage of cash fee |  | 3.00% |  |  |  |  |  |
Aggregate authorized offering price |  |  |  |  |  |  |  | $ 50,000,000.0
Subsequent Events [Member] |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |
Shares issued (in shares) |  |  | 72,712 |  |  | 5,202,561 |  |
Subsequent Events [Member] | At The Market Offering Agreement |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |
Common stock, par value | $ 0.01 |  |  |  |  |  |  |
Aggregate authorized offering price | $ 5,800,000 |  |  |  |  |  |  |
Proceeds from Issuance of Common Stock |  |  |  |  |  | $ 15,600,000 |  |
Shares issued (in shares) |  |  |  | 500 |  |  |  |
Amount available for future sale of shares pursuant to the sales agreement |  |  | $ 5,800,000 | $ 5,800,000 |  | $ 5,800,000 |  |
Subsequent Events [Member] | At The Market Offering Agreement | Maximum [Member] |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |
Proceeds from Issuance of Common Stock |  |  |  | $ 1,000 |  |  |  |
Subsequent Events [Member] | AGP | At The Market Offering Agreement |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |
Percentage of cash fee | 3.00% |  |  |  |  |  |  |

X
- Definition The cash fee expressed as a percentage of aggregate gross proceeds from the sale of the shares of the company under the agreement. + References No definition available. + Details
Name: | prpo_CashFeeAsPercentageOfGrossProceedsOfSaleOfStock
Namespace Prefix: | prpo_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of aggregate authorized offering price of common stock under the agreement. + References No definition available. + Details
Name: | prpo_SaleOfCommonStockAggregateOfferingPriceAuthorized
Namespace Prefix: | prpo_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount available for future sale of shares pursuant to the sales agreement. + References No definition available. + Details
Name: | prpo_SalesAgreementAmountAvailableForFutureSales
Namespace Prefix: | prpo_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Face amount or stated value per share of common stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_CommonStockParOrStatedValuePerShare
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromIssuanceOfCommonStock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of new stock issued during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21463-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesNewIssues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=prpo_AtMarketOfferingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=prpo_AllianceGlobalPartnersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
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: |