Cash equivalents and short-term investments held for discharge of obligations.

No definition available.

Name:	pcti_CashEquivalentsAndShortTermInvestmentsHeldForDischargeOfObligations
Namespace Prefix:	pcti_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Deferred compensation liability current and non current amount paid.

+ References

No definition available.

+ Details

Name:	pcti_DeferredCompensationLiabilityCurrentAndNonCurrentAmountPaid
Namespace Prefix:	pcti_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date.

+ References

No definition available.

+ Details

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

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

- Definition

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis=pcti_ExecutiveDeferredCompensationPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis=pcti_EmployeeBenefitPlansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Benefit Plans - Additional Information (Detail) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Jan. 31, 2015	Dec. 31, 2014
Executive Deferred Compensation Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Value of investment account to fund obligation			$ 2.1
Deferred compensation obligation			$ 2.0
Full settlement of obligation		$ 2.0
Employee Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Maximum percentage of current compensation of employee to contribute in plan	15.00%