Severance, Impairment And Other Charges (Schedule Of Restructuring Reserve Reconciliation) (Details) - USD ($) $ in Thousands	3 Months Ended
Sep. 30, 2019	Sep. 30, 2018
Severance Impairment And Other Charges [Abstract]
Beginning Balance	$ 44	$ 675
Payments	(44)	0
Ending Balance	$ 0	$ 675

Payments for severance, impairment and other charges.

No definition available.

Name:	prcp_PaymentsForSeveranceImpairmentAndOtherCharges
Namespace Prefix:	prcp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration