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Stockholders' Equity (Stock-Based Compensation) (Details) (USD $)
1 Months Ended 3 Months Ended
Jan. 31, 2015
Mar. 31, 2015
Mar. 31, 2014
Stockholders' Equity Note [Line Items]      
Stock based compensation   $ 324,598us-gaap_ShareBasedCompensation $ 547,142us-gaap_ShareBasedCompensation
Stock compensation expense, per share   $ 0.01dss_ShareBasedCompensationExpensePerShare $ 0.01dss_ShareBasedCompensationExpensePerShare
Unrecognized compensation costs   1,004,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized  
Unrecognized compensation cost, recognition period   15 months  
Unrecognized compensation costs, amount excluded for awards that vest upon the occurrence of certain events   536,000dss_EmployeeServiceShareBasedCompensationNonvestedAwardsAmountExcludedFromTotalCompensationCostNotYetRecognized  
Restricted shares granted, Shares 30,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod    
Fair value of shares $ 11,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue