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NOTE 5 - PATENTS AND TRADEMARKS (Details) - USD ($) | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Patents And Trademarks [Abstract] |  |
Patents and trademarks | $ 267,205 | $ 267,135
Less: Accumulated amortization | (215,782) | (210,129)
Patents and trademarks, Net | $ 51,423 | $ 57,006

X
- Definition Less Accumulated amortization. + References No definition available. + Details
Name: | duos_LessAccumulatedAmortization
Namespace Prefix: | duos_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Patents and trademarks. + References No definition available. + Details
Name: | duos_PatentsAndTrademarks
Namespace Prefix: | duos_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | duos_PatentsAndTrademarksAbstract
Namespace Prefix: | duos_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Patents and trademarks, Net. + References No definition available. + Details
Name: | duos_PatentsAndTrademarksNet
Namespace Prefix: | duos_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant