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Commitments (Details) (USD $)
 12 Months Ended 0 Months Ended
Dec. 31, 2014
Component
Dec. 31, 2013
Dec. 31, 2012
Jan. 31, 2013
Operating lease obligations [Abstract]        
2015 $ 1,239,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent      
2016 961,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears      
2017 943,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears      
2018 158,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears      
2019 0us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears      
Thereafter 0us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter      
Total 3,301,000us-gaap_OperatingLeasesFutureMinimumPaymentsDue      
Equipment loan obligation [Abstract]        
2015 69,000us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent      
2016 0us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears      
2017 0us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears      
2018 0us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears      
2019 0us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears      
There-after 0us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter      
Total 69,000us-gaap_CapitalLeasesFutureMinimumPaymentsDue      
Total Contractual Obligations [Abstract]        
Total 2015 1,308,000us-gaap_ContractualObligationDueInNextTwelveMonths      
Total 2016 961,000us-gaap_ContractualObligationDueInSecondYear      
Total 2017 943,000us-gaap_ContractualObligationDueInThirdYear      
Total 2018 158,000us-gaap_ContractualObligationDueInFourthYear      
Total 2019 0us-gaap_ContractualObligationDueInFifthYear      
Total Thereafter 0us-gaap_ContractualObligationDueAfterFifthYear      
Contractual Obligations, Total 3,370,000us-gaap_ContractualObligation      
Operating Leased Assets [Line Items]        
Rent expense 1,200,000us-gaap_OperatingLeasesRentExpenseNet 1,000,000us-gaap_OperatingLeasesRentExpenseNet 1,000,000us-gaap_OperatingLeasesRentExpenseNet  
Estimated development costs 6,000,000dsco_EstimatedDevelopmentCosts      
Retention plan [Line Items]        
Number of components for retention plan 2dsco_NumberOfComponentsForRetentionPlan      
Amount estimated for severance and retention 900,000dsco_EstimateForSeveranceAndRetention      
Liability for severance and retention 600,000us-gaap_RestructuringReserve 100,000us-gaap_RestructuringReserve    
Expense Related to Severance and Retention During the Period 500,000dsco_ExpenseRelatedToSeveranceDuringPeriod 100,000dsco_ExpenseRelatedToSeveranceDuringPeriod    
Plant Management [Member]        
Retention plan [Line Items]        
Number of employees receiving retention plan awards 3dsco_NumberOfEmployeesReceivingRetentionPlanAwards
/ dsco_TypeOfEmployeesAxis
= dsco_PlantManagementMember		      
Non-Union employees [Member]        
Retention plan [Line Items]        
Number of employees receiving retention plan awards 8dsco_NumberOfEmployeesReceivingRetentionPlanAwards
/ dsco_TypeOfEmployeesAxis
= dsco_NonUnionEmployeesMember		      
Collective Bargaining Agreement [Member]        
Retention plan [Line Items]        
Number of employees receiving retention plan awards 12dsco_NumberOfEmployeesReceivingRetentionPlanAwards
/ dsco_TypeOfEmployeesAxis
= dsco_CollectiveBargainingAgreementMember		      
Percentage of total labor force (in hundredths) 11.00%dsco_PercentageOfTotalLaborForce
/ dsco_TypeOfEmployeesAxis
= dsco_CollectiveBargainingAgreementMember		      
Liability for severance and retention 400,000us-gaap_RestructuringReserve
/ dsco_TypeOfEmployeesAxis
= dsco_CollectiveBargainingAgreementMember		 400,000us-gaap_RestructuringReserve
/ dsco_TypeOfEmployeesAxis
= dsco_CollectiveBargainingAgreementMember		    
Headquarters [Member]        
Operating Leased Assets [Line Items]        
Leased Area of Real Estate Property 39,594dsco_LeasedAreaOfRealEstateProperty
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_BuildingMember		      
Lease extension term 5 years      
Aggregate rental payments     7,200,000us-gaap_OperatingLeasesRentExpenseMinimumRentals
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_BuildingMember		 4,900,000us-gaap_OperatingLeasesRentExpenseMinimumRentals
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_BuildingMember
Sterile Manufacturing Facility [Member]        
Operating Leased Assets [Line Items]        
Leased Area of Real Estate Property 21,000dsco_LeasedAreaOfRealEstateProperty
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= dsco_SterileManufacturingFacilityMember		      
Annual rent of leased property $ 525,000dsco_AnnualRentOfLeasedProperty
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= dsco_SterileManufacturingFacilityMember