Annual report pursuant to Section 13 and 15(d)

Organization and Operations (Detail Textuals)

v2.4.1.9
Organization and Operations (Detail Textuals) (USD $)
12 Months Ended 48 Months Ended
Sep. 28, 2014
sqft
Employee
Sep. 28, 2014
Employee
Sep. 29, 2013
Sep. 30, 2012
Mar. 30, 2009
Feb. 20, 2009
Related Party Transaction [Line Items]            
Leased Facility (in Square Feet) 49,100opxs_LeasedFacility          
Entity number of employees 52dei_EntityNumberOfEmployees 52dei_EntityNumberOfEmployees        
Percentage of decrease in revenues and net loss 40.00%opxs_PercentageOfDecreaseInRevenues 37.10%opxs_PercentageOfDecreaseInRevenues        
Cash $ 1,685,000us-gaap_CashAndCashEquivalentsAtCarryingValue $ 1,685,000us-gaap_CashAndCashEquivalentsAtCarryingValue $ 882,000us-gaap_CashAndCashEquivalentsAtCarryingValue $ 1,653,000us-gaap_CashAndCashEquivalentsAtCarryingValue    
Working line of credit $ 1,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity $ 1,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity        
Sileas Corporation            
Related Party Transaction [Line Items]            
Equity method investment, ownership percentage         85.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= opxs_SileasMember
90.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= opxs_SileasMember
Longview            
Related Party Transaction [Line Items]            
Equity method investment, ownership percentage           100.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= opxs_LongviewMember