Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation (Details 1)

v2.4.1.9
Stock Based Compensation (Details 1) (USD $)
In Thousands, except Share data, unless otherwise specified
6 Months Ended 12 Months Ended
Mar. 29, 2015
Sep. 28, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Number of Shares Remaining Option, Granted 73,751,649us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross  
Number of Shares Remaining Option, Outstanding - Ending Balance 62,857,649us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber  
Incentive Stock Option Plan    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Number of Shares Remaining Option, Outstanding - Beginning Balance 62,911,649us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_PlanNameAxis
= opxs_IncentiveStockOptionPlanMember
484,247,649us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_PlanNameAxis
= opxs_IncentiveStockOptionPlanMember
Number of Shares Remaining Option, Granted    25,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_PlanNameAxis
= opxs_IncentiveStockOptionPlanMember
Number of Shares Remaining Option, Forfeited (54,000)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod
/ us-gaap_PlanNameAxis
= opxs_IncentiveStockOptionPlanMember
(5,336,000)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod
/ us-gaap_PlanNameAxis
= opxs_IncentiveStockOptionPlanMember
Number of shares remaining option, exercised    (5,000,000)us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
/ us-gaap_PlanNameAxis
= opxs_IncentiveStockOptionPlanMember
Number of Shares Remaining Option, Outstanding - Ending Balance 62,857,649us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_PlanNameAxis
= opxs_IncentiveStockOptionPlanMember
62,911,649us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_PlanNameAxis
= opxs_IncentiveStockOptionPlanMember
Number of shares remaining option, exercisable 40,265,149us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_PlanNameAxis
= opxs_IncentiveStockOptionPlanMember
20,201,649us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_PlanNameAxis
= opxs_IncentiveStockOptionPlanMember
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]    
Weighted Average Fair Value, Outstanding - Beginning Balance      
Weighted Average Fair Value, Granted    $ 0.01us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_PlanNameAxis
= opxs_IncentiveStockOptionPlanMember
Weighted Average Fair Value, Forfeited      
Weighted Average Fair Value, Exercised    $ 0.01us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
/ us-gaap_PlanNameAxis
= opxs_IncentiveStockOptionPlanMember
Weighted Average Fair Value, Outstanding - Ending Balance      
Weighted Average Fair Value, Exercisable      
Share Based Compensation Arrangement By Share Based Payment Award Options Weighted Average Life [Abstract]    
Weighted Average Life (Years), Outstanding 3 years 4 months 28 days 3 years 6 months 22 days
Weighted Average Life (Years) Granted   5 years 2 months 19 days
Weighted Average Life (Years) Exercisable 2 years 9 months 18 days 3 years 4 months 28 days
Share Based Compensation Arrangement By Share Based Payment Award Options Aggregate Value [Roll Forward]    
Aggregate Value, Outstanding - Beginning Balance      
Aggregate Value, Granted    200opxs_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodTotalAggregateValue
/ us-gaap_PlanNameAxis
= opxs_IncentiveStockOptionPlanMember
Aggregate Value, Forfeited      
Aggregate Value, Exercised      
Aggregate Value, Outstanding - Ending Balance      
Aggregate Value, Exercisable