Annual report pursuant to Section 13 and 15(d)

Stockholders' (Deficit) (Details Textual)

v2.4.1.9
Stockholders' (Deficit) (Details Textual) (USD $)
 12 Months Ended 0 Months Ended 12 Months Ended
Dec. 31, 2014
Dec. 31, 2010
Apr. 23, 2012
Dec. 31, 2013
Dec. 31, 2012
Stockholders' Equity (Textual)          
Forfeited, Shares 178,147us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod        
Common stock, par value $ 0.001us-gaap_CommonStockParOrStatedValuePerShare     0.001us-gaap_CommonStockParOrStatedValuePerShare  
Authorized capital stock, shares 260,000,000us-gaap_CapitalUnitsAuthorized        
Common stock, shares authorized 250,000,000us-gaap_CommonStockSharesAuthorized     250,000,000us-gaap_CommonStockSharesAuthorized  
Preferred stock, shares authorized 10,000,000us-gaap_PreferredStockSharesAuthorized        
Share-based compensation expense for options $ 139,255us-gaap_AllocatedShareBasedCompensationExpense        
Total unrecognized compensation expense 134,781us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized        
Weighted average period expected to recognized compensation expense (in years) 1 year 8 months 12 days        
Warrant valued at grant date 35,702dtst_ShareBasedCompensationArrangementBySharesBasedPaymentAwardWarrrantGrantDateFairValue        
Common Stock          
Stockholders' Equity (Textual)          
Cashless Exercise Of Stock Options Shares 462,395dtst_CashlessExerciseOfStockOptionsShares
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember 		       
Two Thousand Eight Equity Incentive Plan [Member]          
Stockholders' Equity (Textual)          
Options outstanding 2,435,414us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_PlanNameAxis
= dtst_TwoThousandEightEquityIncentivePlanMember 		       
Two Thousand Ten Incentive Award Plan [Member]          
Stockholders' Equity (Textual)          
Maximum term of stock option from the date of grant   10 years      
Reserved shares of common stock for issuance   5,000,000us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ us-gaap_PlanNameAxis
= dtst_TwoThousandTenIncentiveAwardPlanMember 		     
Amended and Restated Dsc Incentive Award Plan [Member]          
Stockholders' Equity (Textual)          
Options outstanding 3,845,146us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_PlanNameAxis
= dtst_AmendedAndRestatedDscIncentiveAwardPlanMember 		       
Shares available for future grants 1,154,854us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_PlanNameAxis
= dtst_AmendedAndRestatedDscIncentiveAwardPlanMember 		       
Amount of annual contribution per employee     $ 100,000us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeeAmount
/ us-gaap_PlanNameAxis
= dtst_AmendedAndRestatedDscIncentiveAwardPlanMember 		   
Warrant [Member]          
Stockholders' Equity (Textual)          
Options outstanding 133,334us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= us-gaap_WarrantMember 		    133,334us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= us-gaap_WarrantMember 		28,642us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= us-gaap_WarrantMember
Warrants expired       28,642us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_WarrantMember 		 
Warrants issued       133,334dtst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross1
/ us-gaap_AwardTypeAxis
= us-gaap_WarrantMember