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Note 3 - Discontinued Operations (Details) (USD $)
0 Months Ended
Feb. 04, 2015
Mar. 31, 2015
Jun. 30, 2014
Note 3 - Discontinued Operations (Details) [Line Items]      
Notes Receivable, Related Parties, Current   $ 3,000,000us-gaap_NotesReceivableRelatedPartiesCurrent  
Sublease Agrement, Term of Contract 1 year    
Sublease Agrement, Number of Term 2sxi_SubleaseAgrementNumberOfTerm    
Liabilities, Current   120,362,000us-gaap_LiabilitiesCurrent 141,170,000us-gaap_LiabilitiesCurrent
Discontinued Operations [Member]      
Note 3 - Discontinued Operations (Details) [Line Items]      
Capital Lease Obligations, Current   2,000,000us-gaap_CapitalLeaseObligationsCurrent
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember
 
Liabilities, Current   $ 900,000us-gaap_LiabilitiesCurrent
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember