XML 51 R40.htm IDEA: XBRL DOCUMENT v3.20.2

CONVERTIBLE NOTES (Bridge Note debt discounts and debt premiums) (Details) - Convertible Debt [Member] - Convertible Bridge Loan - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Debt discounts
Beginning balance	$ (2,158)	$ (1,796)	$ (1,111)
Additions			(2,086)
Deductions: Amortization/accretion	41	703	154
Deductions: Write-off related to note conversions	63	138	989
Deductions: Write-off related to note extinguishment		955
Ending balance	$ (2,054)		(2,054)
Debt premiums
Beginning balance			647
Additions:		793
Deductions: Amortization/accretion		(385)	(167)
Deductions: Write-off related to note conversions		$ (408)	$ (480)

X

- Definition

Amount of additional to unamortized discount during the period.

+ References

No definition available.

+ Details

Name:	prpo_AdditionsOfUnamortizedDiscount
Namespace Prefix:	prpo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Amount of additional to unamortized premiums during the period.

+ References

No definition available.

+ Details

Name:	prpo_AdditionsOfUnamortizedPremiums
Namespace Prefix:	prpo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of noncash expense included in interest expense to amortize debt discount associated with the related debt instruments.

+ References

No definition available.

+ Details

Name:	prpo_AmortizationOfDebtDiscount
Namespace Prefix:	prpo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of noncash expense included in interest expense to amortize debt premium associated with the related debt instruments.

+ References

No definition available.

+ Details

Name:	prpo_AmortizationOfDebtPremium
Namespace Prefix:	prpo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Write-off of amounts previously capitalized as debt discount related to note conversions.

+ References

No definition available.

+ Details

Name:	prpo_WriteOffOfDebtDiscount
Namespace Prefix:	prpo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Write-off of amounts previously capitalized as debt discount related to note extinguishment.

+ References

No definition available.

+ Details

Name:	prpo_WriteOffOfDebtDiscountRelatingToNoteExtinguishment
Namespace Prefix:	prpo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Write-off of amounts previously capitalized as debt premium related to note conversions.

+ References

No definition available.

+ Details

Name:	prpo_WriteOffOfDebtPremium
Namespace Prefix:	prpo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Amount, after accumulated amortization, of debt discount.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28541-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

Name:	us-gaap_DebtInstrumentUnamortizedDiscount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

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

X

- Definition

Amount, after accumulated amortization, of debt premium.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28541-108399

+ Details

Name:	us-gaap_DebtInstrumentUnamortizedPremium
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

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

X

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_ConvertibleDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=prpo_ConvertibleBridgeLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: