XML 38 R27.htm IDEA: XBRL DOCUMENT v3.10.0.1

PROPERTY AND EQUIPMENT (Narrative) (Details)	9 Months Ended
	Aug. 31, 2018 USD ($)
Property And Equipment 1	$ 180,000

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- Definition

Property And Equipment 1

+ References

No definition available.

+ Details

Name:	sdev_PropertyAndEquipmentZeroFourZeroFourFiveZeropFKmTwoSOneRdSkl
Namespace Prefix:	sdev_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration