2.4.0.840503 - Disclosure - Stockholders' Equity (Stock-Based Compensation) (Details)truefalsefalse1false USDfalsefalse$from-2013-01-01-to-2013-06-30.1153.0.0.0.0.0.0.0http://www.sec.gov/CIK0000771999duration2013-01-01T00:00:002013-06-30T00:00:00USD_per_shareDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2false USDfalsefalse$from-2012-01-01-to-2012-06-30.1156.0.0.0.0.0.0.0http://www.sec.gov/CIK0000771999duration2012-01-01T00:00:002012-06-30T00:00:00USD_per_shareDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1true 3dss_StockholdersEquityNoteLineItemsdss_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Stockholders' Equity Note [Line Items]2false 4us-gaap_ShareBasedCompensationus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse12886891288689USD$falsetruefalse2truefalsefalse331526331526USD$falsetruefalsexbrli:monetaryItemTypemonetaryThe aggregate amount of noncash, equity-based employee remuneration. 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