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SUBSEQUENT EVENTS (Details Textual) (Subsequent Event [Member], USD $)
 1 Months Ended 0 Months Ended
May 29, 2015
Apr. 09, 2015
Hard Rock [Member]
    
Subsequent Event [Line Items]    
Debt Instrument, Interest Rate During Period 5.25%us-gaap_DebtInstrumentInterestRateDuringPeriod
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= sdpi_HardRockMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		  
Debt Instrument, Periodic Payment, Principal $ 2,500,000us-gaap_DebtInstrumentPeriodicPaymentPrincipal
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= sdpi_HardRockMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		  
America Bank of North [Member]
    
Subsequent Event [Line Items]    
Notes Payable   5,000,000us-gaap_NotesPayable
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= sdpi_AmericaBankOfNorthMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Debt Instrument, Interest Rate During Period   5.25%us-gaap_DebtInstrumentInterestRateDuringPeriod
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= sdpi_AmericaBankOfNorthMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Debt Instrument, Periodic Payment, Interest   39,317us-gaap_DebtInstrumentPeriodicPaymentInterest
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= sdpi_AmericaBankOfNorthMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid   $ 4,256,355us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= sdpi_AmericaBankOfNorthMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Debt Instrument, Maturity Date   Aug. 18, 2018
Debt Instrument, Frequency of Periodic Payment   39 monthly