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SUBSEQUENT EVENTS (Details) (RBS Citizens, National Association [Member], USD $)
12 Months Ended 0 Months Ended
Sep. 30, 2014
Dec. 01, 2014
Revolving Credit Facility [Member]
   
Preference share dividends [Abstract]    
Line of Credit Facility, Maximum Borrowing Capacity $ 3,500,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LineOfCreditFacilityAxis
= sev_RbsCitizensNationalAssociationMember
 
Line of Credit Facility, Expiration Date Jun. 14, 2017  
Subsequent Event [Member]    
Preference share dividends [Abstract]    
Repayments of Lines of Credit   1,700,000us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_LineOfCreditFacilityAxis
= sev_RbsCitizensNationalAssociationMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Subsequent Event [Member] | Revolving Credit Facility [Member]    
Preference share dividends [Abstract]    
Line of Credit Facility, Maximum Borrowing Capacity   $ 3,500,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LineOfCreditFacilityAxis
= sev_RbsCitizensNationalAssociationMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Line of Credit Facility, Expiration Date   Jun. 14, 2017