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Income Taxes (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2015
Income Taxes [Abstract]  
Combined federal and state rate used to estimate income tax expense (benefit) 38.00%sppr_CombinedFederalAndStateRateUsedToEstimateIncomeTaxExpenseBenefit
Net operating loss carryforward for federal income tax purposes $ 20.8us-gaap_DeferredTaxAssetsOperatingLossCarryforwards