XML 22 R30.htm IDEA: XBRL DOCUMENT v2.4.1.9
Accounting For Share-Based Payments - Textuals (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Nov. 01, 2014
Nov. 02, 2013
Nov. 01, 2014
Nov. 02, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 1,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized   1,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized  
Share-based Compensation Arrangement by Share-based Payment Award, Annual Percentage Increase in Shares Authorized     1.50%perf_ShareBasedCompensationArrangementByShareBasedPaymentAwardAnnualPercentageIncreaseInSharesAuthorized  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Exercisable Options 1,729,753us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions   1,729,753us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions  
Share-based compensation expense $ 104us-gaap_AllocatedShareBasedCompensationExpense $ 105us-gaap_AllocatedShareBasedCompensationExpense $ 313us-gaap_AllocatedShareBasedCompensationExpense $ 312us-gaap_AllocatedShareBasedCompensationExpense
The 2010 Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Outstanding at end of period (number of shares) 782,743us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= perf_A2010PlanMember
  782,743us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= perf_A2010PlanMember