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CONCENTRATION OF RISK (Details)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Product Concentration Risk      
Concentration Risk [Line Items]      
Concentration of Risk, Percentage 17.00%bios_ConcentrationOfRiskPercentage
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_ProductConcentrationRiskMember		 19.00%bios_ConcentrationOfRiskPercentage
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_ProductConcentrationRiskMember		 22.00%bios_ConcentrationOfRiskPercentage
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_ProductConcentrationRiskMember
UnitedHealthcare [Member] | Customer Concentration Risk      
Concentration Risk [Line Items]      
Concentration of Risk, Percentage 22.00%bios_ConcentrationOfRiskPercentage
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= bios_UnitedHealthcareMember		 22.00%bios_ConcentrationOfRiskPercentage
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= bios_UnitedHealthcareMember		 21.00%bios_ConcentrationOfRiskPercentage
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= bios_UnitedHealthcareMember
Medicare [Member] | Customer Concentration Risk      
Concentration Risk [Line Items]      
Concentration of Risk, Percentage 11.00%bios_ConcentrationOfRiskPercentage
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= bios_MedicareMember		 11.00%bios_ConcentrationOfRiskPercentage
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= bios_MedicareMember		 9.00%bios_ConcentrationOfRiskPercentage
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= bios_MedicareMember