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INVENTORY (Narrative) (Details) | 12 Months Ended
--- | ---
Nov. 30, 2017 USD ($)
Inventory 1 | $ 109,673
Inventory 2 | 836
Inventory 3 | 0
Inventory 4 | 6,487
Inventory 5 | 47,630
Inventory 6 | $ 0

X
- Definition Inventory 2 + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

X
- Definition Inventory 3 + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | na
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X
- Definition Inventory 1 + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | na
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X
- Definition Inventory 4 + References No definition available. + Details
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Namespace Prefix: | sdev_
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Balance Type: | na
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- Definition Inventory 6 + References No definition available. + Details
Name: | sdev_InventoryZeroThreeEightFiveFiveZerovsyNVTwogdxSixEightp
Namespace Prefix: | sdev_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
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X
- Definition Inventory 5 + References No definition available. + Details
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Namespace Prefix: | sdev_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
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