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Proceeds Investment Agreement Obligation - Schedule of Proceeds Investment Agreement Activity (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Proceeds Investment Agreement Obligation |  |  |  |
Beginning balance as of December 31, 2019 |  |  |  |
Repayment of obligation |  |  |  |
Change in the fair value during the period | $ (2,578,000) | $ 2,961,000 | (2,885,000) | $ 3,098,000
Ending balance as of June 30, 2020 | $ 3,615,000 |  | $ 3,615,000 |

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- Definition Change in fair value of proceeds investment agreement. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- References No definition available. + Details
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Namespace Prefix: | DGLY_
Data Type: | xbrli:stringItemType
Balance Type: | na
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- Definition Proceeds investment agreement obligation, at fair value - Current. + References No definition available. + Details
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Namespace Prefix: | DGLY_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Repayment of proceeds investment agreement obligation. + References No definition available. + Details
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Namespace Prefix: | DGLY_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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