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Debt Financing (Details Textuals 2) (USD $)
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3 Months Ended | 6 Months Ended | 1 Months Ended | 3 Months Ended | |||
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Mar. 29, 2015
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Mar. 29, 2015
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Mar. 30, 2014
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Nov. 17, 2014
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Dec. 28, 2014
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Mar. 26, 2015
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Sep. 28, 2014
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| Debt Instrument [Line Items] | |||||||
| Derivative Value | $ 0us-gaap_DerivativeLiabilitiesNoncurrent | $ 0us-gaap_DerivativeLiabilitiesNoncurrent | $ 6,127,000us-gaap_DerivativeLiabilitiesNoncurrent | ||||
| Change in Fair Value - Derivatives | (847,000)us-gaap_UnrealizedGainLossOnDerivatives | ||||||
| Unamortized debt discount | 0us-gaap_DebtInstrumentUnamortizedDiscount | 0us-gaap_DebtInstrumentUnamortizedDiscount | |||||
| Note balance | |||||||
| Convertible notes payable (net of discount) | 33,000us-gaap_ConvertibleLongTermNotesPayable | ||||||
| Conversion price (in dollars per share) | $ 0.01opxs_CommonStockConvertibleConversionPrice | $ 0.01opxs_CommonStockConvertibleConversionPrice | |||||
| Series B Preferred Stock [Member] | |||||||
| Debt Instrument [Line Items] | |||||||
| Preferred stock, shares authorized |
1,010us-gaap_PreferredStockSharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
1,010us-gaap_PreferredStockSharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
0us-gaap_PreferredStockSharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
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| Stated value of each share |
$ 0.01us-gaap_SharePrice / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
$ 0.01us-gaap_SharePrice / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
$ 1,629.16us-gaap_SharePrice / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
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| Conversion price (in dollars per share) |
$ 0.0025opxs_CommonStockConvertibleConversionPrice / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
$ 0.0025opxs_CommonStockConvertibleConversionPrice / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
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| Stock issued upon conversion of debt |
1,000us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
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| Convertible promissory note | |||||||
| Debt Instrument [Line Items] | |||||||
| Stock projections historical volatilities |
197.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember |
202.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember |
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| Percentage of Stock price exceed conversion price |
200.00%opxs_PercentageOfStockPriceExceedConversionPrice / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember |
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| Default event occurring increase percentage |
0.25%opxs_DefaultEventOccurringIncreasePercentage / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember |
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| Derivative Value |
0us-gaap_DerivativeLiabilitiesNoncurrent / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember |
0us-gaap_DerivativeLiabilitiesNoncurrent / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember |
6,127,000us-gaap_DerivativeLiabilitiesNoncurrent / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember |
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| Change in Fair Value - Derivatives |
847,000us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember |
(847,000)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember |
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| Unamortized debt discount |
(1,560,000)us-gaap_DebtInstrumentUnamortizedDiscount / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember |
(1,527,000)us-gaap_DebtInstrumentUnamortizedDiscount / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember |
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| Note balance |
1,560,000us-gaap_DebtInstrumentCarryingAmount / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember |
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| Convertible notes payable (net of discount) |
33,000us-gaap_ConvertibleLongTermNotesPayable / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember |
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| Interest rate on notes |
12.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember |
12.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember |
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| Interest expense notes payable |
23,000opxs_InterestExpenseNotesPayable / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember |
46,000opxs_InterestExpenseNotesPayable / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember |
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| Amortized interest expense related to debt issuance costs |
4,000us-gaap_AmortizationOfFinancingCosts / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember |
70,000us-gaap_AmortizationOfFinancingCosts / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember |
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| Unamortized debt issuance costs | |||||||
| Principal amount |
$ 1,560,000us-gaap_DebtInstrumentFaceAmount / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember |
$ 1,560,000us-gaap_DebtInstrumentFaceAmount / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember |
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| Convertible promissory note | Minimum | |||||||
| Debt Instrument [Line Items] | |||||||
| Default event occurring percentage |
0.00%opxs_DefaultEventOccurringPercentage / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
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| Discount rates based on risk-free rate |
0.54%us-gaap_FairValueInputsDiscountRate / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
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| Convertible promissory note | Maximum | |||||||
| Debt Instrument [Line Items] | |||||||
| Default event occurring percentage |
5.00%opxs_DefaultEventOccurringPercentage / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
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| Discount rates based on risk-free rate |
0.73%us-gaap_FairValueInputsDiscountRate / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
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| X | ||||||||||
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- Definition
The price per share of the conversion feature embedded in the common stock. No definition available.
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| X | ||||||||||
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- Definition
Represents default event occurring increase percentage. No definition available.
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| X | ||||||||||
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- Definition
Represents default event occurring percentage. No definition available.
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| X | ||||||||||
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- Definition
Represents interest expense on notes payable. No definition available.
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| X | ||||||||||
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- Definition
Represents percentage of stock price exceed conversion price. No definition available.
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| X | ||||||||||
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- Definition
Amount of noncash expense included in interest expense to issue debt and obtain financing associated with the related debt instruments. Alternate captions include noncash interest expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Convertible Notes Payable, excluding current portion. Convertible Notes Payable is a written promise to pay a note which can be exchanged for a specified amount of another, related security, at the option of the issuer and the holder. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Face (par) amount of debt instrument at time of issuance. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Price of a single share of a number of saleable stocks of a company. No definition available.
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| X | ||||||||||
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- Definition
Number of shares issued during the period as a result of the conversion of convertible securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Details
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