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Long-Term Debt And Credit Facilities (Schedule Of Long-Term Debt Outstanding) (Details) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Debt Instrument [Line Items]    
Long term debt $ 18,388,764us-gaap_LongTermDebt  
Total long term debt 18,388,764us-gaap_LongTermDebtNoncurrent 18,481,478us-gaap_LongTermDebtNoncurrent
Carrying Amount [Member]    
Debt Instrument [Line Items]    
Less current maturities   (49,733)us-gaap_LongTermDebtCurrent
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
Total long term debt 18,388,764us-gaap_LongTermDebtNoncurrent
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
18,481,478us-gaap_LongTermDebtNoncurrent
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
Estimated Fair Value [Member]    
Debt Instrument [Line Items]    
Less current maturities   (49,733)us-gaap_LongTermDebtCurrent
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember
Total long term debt 18,388,764us-gaap_LongTermDebtNoncurrent
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember
18,481,478us-gaap_LongTermDebtNoncurrent
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember
Healthcare Royalty Partners debt [Member] | Carrying Amount [Member]    
Debt Instrument [Line Items]    
Long term debt 18,388,764us-gaap_LongTermDebt
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
/ us-gaap_LongtermDebtTypeAxis
= stxs_CowenDebtMember
18,531,211us-gaap_LongTermDebt
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
/ us-gaap_LongtermDebtTypeAxis
= stxs_CowenDebtMember
Healthcare Royalty Partners debt [Member] | Estimated Fair Value [Member]    
Debt Instrument [Line Items]    
Long term debt $ 18,388,764us-gaap_LongTermDebt
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember
/ us-gaap_LongtermDebtTypeAxis
= stxs_CowenDebtMember
$ 18,531,211us-gaap_LongTermDebt
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember
/ us-gaap_LongtermDebtTypeAxis
= stxs_CowenDebtMember