Paycheck Protection Program Loan - Additional Information (Detail) $ in Millions	Apr. 16, 2020 USD ($)
Paycheck Protection Program Loan [Abstract]
Small Business Administration protection loan	$ 3.5

Protection loan from Small Business Administration (SBA).

No definition available.

Name:	pcti_ProtectionLoanFromSmallBusinessAdministration
Namespace Prefix:	pcti_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant