XML 41 R30.htm IDEA: XBRL DOCUMENT v3.20.2

BUSINESS DESCRIPTION (Narrative) (Details) - USD ($)				3 Months Ended	9 Months Ended		12 Months Ended		33 Months Ended
	May 13, 2020	Jan. 15, 2019	Sep. 07, 2018	Sep. 30, 2020	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Sep. 30, 2020	Apr. 30, 2020	Apr. 13, 2020	Apr. 09, 2020
Business Acquisition [Line Items]
Accumulated Net Income (Loss)				$ 8,700,000	$ 8,700,000				$ 8,700,000
Working deficiency				$ 500,000	500,000				500,000
Net cash used in operating activities					(5,983,000)	$ (7,001,000)
Shares sold in offering (in shares)	550,000
Proceeds from issuance of common stock					$ 6,921,000	$ 5,171,000
Maximum aggregate initial offering price											$ 50,000,000	$ 50,000,000
Lincoln Park [Member]
Business Acquisition [Line Items]
Value of shares issued			$ 10,000,000
Shares sold in offering (in shares)	4,130,000			0	1,040,654		2,778,077	328,590
Proceeds from issuance of common stock	$ 1,200,000				$ 1,400,000		$ 6,600,000	$ 1,400,000	$ 9,400,000
Equity purchase agreement value remaining available	3,300,000
Lincoln Park [Member] | Maximum
Business Acquisition [Line Items]
Value of shares issued			$ 1,000,000		$ 10,000,000
Shares sold in offering (in shares)			30,000
LP 2020 Purchase Agreement [Member]
Business Acquisition [Line Items]
Proceeds from issuance of common stock	$ 6,700,000
Crede Note
Business Acquisition [Line Items]
Proceeds from issuance of common stock		$ 4,000,000
Joint Venture
Business Acquisition [Line Items]
Percentage of interest in joint venture										49.00%
Joint Venture | Poplar Put Right [Member] | Scenario, Plan [Member]
Business Acquisition [Line Items]
Percentage of interest in joint venture				100.00%	100.00%				100.00%
Price per share				$ 1.00	$ 1.00				$ 1.00
Purchase price				$ 51	$ 51				$ 51
Joint Venture | Popular Healthcare PLLC
Business Acquisition [Line Items]
Percentage of interest in joint venture										51.00%

X

- Definition

Accumulated Net Income (Loss)

+ References

No definition available.

+ Details

Name:	prpo_AccumulatedNetIncomeLoss
Namespace Prefix:	prpo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Equity purchase agreement value remaining available.

+ References

No definition available.

+ Details

Name:	prpo_EquityPurchaseAgreementValueRemainingAvailable
Namespace Prefix:	prpo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Maximum aggregate initial offering price

+ References

No definition available.

+ Details

Name:	prpo_MaximumAggregateInitialOfferingPrice
Namespace Prefix:	prpo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Purchase price of all share in Joint Venture

+ References

No definition available.

+ Details

Name:	prpo_PurchasePriceOfAllShareInJointVenture
Namespace Prefix:	prpo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Working Capital (Deficiency)

+ References

No definition available.

+ Details

Name:	prpo_WorkingCapitalDeficiency
Namespace Prefix:	prpo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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_BusinessAcquisitionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3536-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 24
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3521-108585

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

+ Details

Name:	us-gaap_NetCashProvidedByUsedInOperatingActivities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

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=118932676&loc=d3e3255-108585

+ Details

Name:	us-gaap_ProceedsFromIssuanceOfCommonStock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

No definition available.

+ Details

Name:	us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

+ Details

Name:	us-gaap_SaleOfStockPricePerShare
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.

+ References

Reference 1: 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=27012166&loc=d3e187085-122770

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=109259400&loc=d3e21463-112644

Reference 3: 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=6877327&loc=d3e13212-122682

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=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_StockIssuedDuringPeriodValueNewIssues
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=prpo_LincolnParkMember
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_SubsidiarySaleOfStockAxis=prpo_Lp2020PurchaseAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_LitigationCaseAxis=prpo_CredeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_CorporateJointVentureMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=prpo_PoplarPutRightMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementScenarioAxis=us-gaap_ScenarioPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_CounterpartyNameAxis=prpo_PopularHealthcarePllcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: