Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets (Details)

v2.4.1.9
Goodwill and Intangible Assets (Details) (USD $)
 3 Months Ended
Mar. 31, 2015
Schedule of goodwill and intangible assets  
Goodwill, Gross amount $ 2,201,828us-gaap_GoodwillGross
Goodwill, Accumulated Amortization   
Intangible assets not subject to amortization  
Trademarks, Gross amount 294,268us-gaap_IndefiniteLivedTrademarks
Trademarks, Accumulated Amortization   
Intangible assets subject to amortization  
Customer list, Gross amount 897,274us-gaap_FiniteLivedCustomerListsGross
Customer lists, Accumulated Amortization 787,129dtst_FiniteLivedCustomerListsAccumulatedAmortization
Non-compete agreements, Gross amount 262,147us-gaap_FiniteLivedNoncompeteAgreementsGross
Non-compete agreements, Accumulated Amortization 262,147dtst_NonCompeteAgreementsAccumulatedAmortization
Total Intangible Assets, Gross amount 1,453,689dtst_FiniteLivedAndIndefiniteLivedIntangibleAssetsGross
Total Intangible Assets, Accumulated Amortization 1,049,276us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Total Goodwill and Intangible Assets, Gross amount 3,655,517dtst_GoodwillAndIntangibleAssets
Total Goodwill and Intangible Assets, Accumulated Amortization $ 1,049,276dtst_GoodwillAndIntangibleAssetsAccumulatedAmortization
Goodwill, Estimated life in Years Indefinite
Trademarks, Estimated life in Years Indefinite
Non-compete Agreements [Member]  
Intangible assets subject to amortization  
Intangible assets subject to amortization, Estimated life in Years 4 years
Customer Lists [Member] | Minimum [Member]  
Intangible assets subject to amortization  
Intangible assets subject to amortization, Estimated life in Years 5 years
Customer Lists [Member] | Maximum [Member]  
Intangible assets subject to amortization  
Intangible assets subject to amortization, Estimated life in Years 15 years