Quarterly report pursuant to Section 13 or 15(d)

Investment in Joint Venture At Equity (Details 1)

v2.4.1.9
Investment in Joint Venture At Equity (Details 1) (USD $)
3 Months Ended
Mar. 31, 2015
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]  
Net sales $ 483,981us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue
Gross profit 200,406us-gaap_EquityMethodInvestmentSummarizedFinancialInformationGrossProfitLoss
Operating expenses 97,406dtst_EquityMethodInvestmentSummarizedFinancialInformationOperatingExpenses
Net income(loss) $ 103,000us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss