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Commitments and Contingencies (Details) (USD $)
In Thousands, unless otherwise specified |
Dec. 28, 2014
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| Fiscal Year | |
| 2015 | $ 421us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent |
| 2016 | 475us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears |
| 2017 | 266us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears |
| 2018 | 271us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears |
| 2019 | 281us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears |
| 2020 | 291opxs_OperatingLeasesFutureMinimumPaymentsDueInSixYears |
| 2021 | 147opxs_OperatingLeasesFutureMinimumPaymentsDueInSevenYears |
| Total minimum lease payments | $ 2,152us-gaap_OperatingLeasesFutureMinimumPaymentsDue |
| X | ||||||||||
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- Definition
Amount of required minimum rental payments maturing in the Seventh fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. No definition available.
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments maturing in the Sixth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. No definition available.
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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