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Revenue, Remaining Performance Obligation, Variable Consideration Amount, Development Milestone, Per Protected Product

No definition available.

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Revenue, Remaining Performance Obligation, Variable Consideration Amount, Sales Milestone, Per Collaboration Product

No definition available.

Name:	prme_RevenueRemainingPerformanceObligationVariableConsiderationAmountSalesMilestonePerCollaborationProduct
Namespace Prefix:	prme_
Data Type:	xbrli:monetaryItemType
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Period Type:	duration

Revenue, Remaining Performance Obligation, Variable Consideration Amount, Sales Milestone, Per Protected Product

No definition available.

Name:	prme_RevenueRemainingPerformanceObligationVariableConsiderationAmountSalesMilestonePerProtectedProduct
Namespace Prefix:	prme_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 808
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479402/808-10-50-1