Quarterly report pursuant to Section 13 or 15(d)

Debt Financing (Detail Textuals 1)

v2.4.1.9
Debt Financing (Detail Textuals 1) (USD $)
3 Months Ended 6 Months Ended 3 Months Ended 1 Months Ended
Dec. 28, 2014
Mar. 29, 2015
Mar. 29, 2015
Nov. 17, 2014
Sep. 28, 2014
Debt Instrument [Line Items]          
Proceeds from convertible notes issued $ 1,560,000us-gaap_ProceedsFromConvertibleDebt $ 1,560,000us-gaap_ProceedsFromConvertibleDebt      
Common stock, par value (in dollars per share)   $ 0.001us-gaap_CommonStockParOrStatedValuePerShare $ 0.001us-gaap_CommonStockParOrStatedValuePerShare   $ 0.001us-gaap_CommonStockParOrStatedValuePerShare
Convertible promissory note          
Debt Instrument [Line Items]          
Principal amount   1,560,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
1,560,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
   
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
   
Amortized interest expense related to debt issuance costs   70,000us-gaap_AmortizationOfFinancingCosts
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
4,000us-gaap_AmortizationOfFinancingCosts
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
   
Subscription Agreement | Convertible promissory note          
Debt Instrument [Line Items]          
Principal amount       2,100,000us-gaap_DebtInstrumentFaceAmount
/ opxs_AgreementAxis
= opxs_SubscriptionAgreementMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
 
Interest rate on notes       12.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ opxs_AgreementAxis
= opxs_SubscriptionAgreementMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
 
Maturity period of notes       2 years  
Common stock, par value (in dollars per share)       $ 0.001us-gaap_CommonStockParOrStatedValuePerShare
/ opxs_AgreementAxis
= opxs_SubscriptionAgreementMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
 
Conversion price of stock per share (in dollars per share)       $ 0.0025us-gaap_DebtInstrumentConvertibleConversionPrice1
/ opxs_AgreementAxis
= opxs_SubscriptionAgreementMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
 
Prepayment terms       All or part of the then remaining principal amount of the notes may be prepaid at any time at a price equal to 125% of the sum of the remaining principal amount of the notes to be prepaid plus all accrued and unpaid interest thereon.  
Prepayment percentage of principal and unpaid interest       125.00%opxs_PrepaymentPercentageOfPrincipalAndUnpaidInterest
/ opxs_AgreementAxis
= opxs_SubscriptionAgreementMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
 
Reverse stock split ratio       1:350 reverse split  
Reverse Stock Split maximum effective days       90 days  
Debt issuance cost     74,000us-gaap_DebtIssuanceCosts
/ opxs_AgreementAxis
= opxs_SubscriptionAgreementMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
   
Placement Fees     10,000opxs_PlacementFees
/ opxs_AgreementAxis
= opxs_SubscriptionAgreementMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
   
Amortized interest expense related to debt issuance costs   69,000us-gaap_AmortizationOfFinancingCosts
/ opxs_AgreementAxis
= opxs_SubscriptionAgreementMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
5,000us-gaap_AmortizationOfFinancingCosts
/ opxs_AgreementAxis
= opxs_SubscriptionAgreementMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
   
Subscription Agreement | Convertible promissory note | Maximum          
Debt Instrument [Line Items]          
Maximum beneficial ownership       3.33%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
/ opxs_AgreementAxis
= opxs_SubscriptionAgreementMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
 
Subscription Agreement | Convertible promissory note | Accredited investors          
Debt Instrument [Line Items]          
Principal amount       1,550,000us-gaap_DebtInstrumentFaceAmount
/ opxs_AgreementAxis
= opxs_SubscriptionAgreementMember
/ us-gaap_LineOfCreditFacilityAxis
= opxs_InvestorsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
 
Subscription Agreement | Convertible promissory note | Placement Agency          
Debt Instrument [Line Items]          
Proceeds from convertible notes issued       $ 10,000us-gaap_ProceedsFromConvertibleDebt
/ opxs_AgreementAxis
= opxs_SubscriptionAgreementMember
/ us-gaap_LineOfCreditFacilityAxis
= opxs_PlacementAgencyMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember