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Organization And Summary of Significant Accounting Policies (Subscription Rights Offering Narrative)(Details) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Warrants and Rights Note Disclosure [Abstract]      
Price Of One Share Of Common Stock To Be Purchased With Subscription Right $ 1.60sppr_PriceOfOneShareOfCommonStockToBePurchasedWithSubscriptionRight    
Shares Of Common Stock To Purchase With Subscription Rights 1,787,204sppr_SharesOfCommonStockToPurchaseWithSubscriptionRights    
Gross Proceeds 2,859,526us-gaap_ProceedsFromIssuanceOrSaleOfEquity    
Proceeds from the conversion of a note payable 2,000,000us-gaap_ProceedsFromNotesPayable    
Payments of Stock Issuance Costs $ 218,000us-gaap_PaymentsOfStockIssuanceCosts $ 0us-gaap_PaymentsOfStockIssuanceCosts $ 0us-gaap_PaymentsOfStockIssuanceCosts