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INVENTORY (Narrative) (Details) | 12 Months Ended
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Nov. 30, 2016 USD ($)
Inventory 1 | $ 836
Inventory 2 | 30,329
Inventory 3 | 6,487
Inventory 4 | $ 13,990

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- Definition Inventory 1 + References No definition available. + Details
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Namespace Prefix: | sdev_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Inventory 4 + References No definition available. + Details
Name: | sdev_InventoryZeroThreeFourSixEightThreeNineSixFivemWSevenlJBGcDEightDN
Namespace Prefix: | sdev_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Inventory 2 + References No definition available. + Details
Name: | sdev_InventoryZeroThreeFourSixEightThreeNineSixFivepdgCvDTrrSixdD
Namespace Prefix: | sdev_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Inventory 3 + References No definition available. + Details
Name: | sdev_InventoryZeroThreeFourSixEightThreeNineSixFivexTtJWsTyyxzZero
Namespace Prefix: | sdev_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration